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carbidopa

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Description

Carbidopa is a medication used in combination with levodopa to treat Parkinson's disease. It inhibits the peripheral decarboxylation of levodopa, thereby increasing the amount of levodopa that reaches the brain. Carbidopa is typically synthesized in a multi-step process involving the reaction of 3,4-dihydroxybenzoic acid with α-methyl-L-dopa. Carbidopa is a prodrug, meaning that it is inactive when ingested but is converted to its active form in the body. Carbidopa has a relatively short half-life and is metabolized by the liver. It is excreted in the urine. The mechanism of action of carbidopa is based on its ability to inhibit the enzyme dopa decarboxylase, which converts levodopa to dopamine in the peripheral tissues. By inhibiting this enzyme, carbidopa allows more levodopa to cross the blood-brain barrier and reach the central nervous system, where it is converted to dopamine. Carbidopa is an important component of combination therapy for Parkinson's disease, as it significantly improves the efficacy of levodopa. It also reduces the side effects associated with levodopa, such as nausea, vomiting, and orthostatic hypotension. Carbidopa is studied to understand its efficacy and safety in the treatment of Parkinson's disease. Studies are also ongoing to investigate its potential role in the treatment of other neurological conditions. Carbidopa has been shown to be effective in reducing motor symptoms associated with Parkinson's disease, including tremor, rigidity, and bradykinesia. However, it is important to note that carbidopa does not cure Parkinson's disease. It is a symptomatic treatment that can help improve the quality of life for patients with the disease.'

carbidopa (anhydrous) : 3-(3,4-Dihydroxyphenyl)propanoic acid in which the hydrogens alpha- to the carboxyl group are substituted by hydrazinyl and methyl groups (S-configuration). Carbidopa is a dopa decarboxylase inhibitor, so prevents conversion of levodopa to dopamine. It has no antiparkinson activity by itself, but is used (commonly as its hydrate) in the management of Parkinson's disease to reduce peripheral adverse effects of levodopa. [Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Carbidopa: An inhibitor of DOPA DECARBOXYLASE that prevents conversion of LEVODOPA to dopamine. It is used in PARKINSON DISEASE to reduce peripheral adverse effects of LEVODOPA. It has no anti-parkinson activity by itself. [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

carbidopa : The hydrate of 3-(3,4-dihydroxyphenyl)propanoic acid in which the hydrogens alpha- to the carboxyl group are substituted by hydrazinyl and methyl groups (S-configuration). Carbidopa is a dopa decarboxylase inhibitor, so prevents conversion of levodopa to dopamine. It has no antiparkinson activity by itself, but is used in the management of Parkinson's disease to reduce peripheral adverse effects of levodopa. [Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Cross-References

ID SourceID
PubMed CID38101
CHEMBL ID1200748
CHEBI ID3395
SCHEMBL ID1217887
MeSH IDM0003345
PubMed CID2563
CHEMBL ID1179357
CHEBI ID94430
SCHEMBL ID2688295
MeSH IDM0003345
PubMed CID34359
CHEMBL ID1201236
CHEBI ID39585
SCHEMBL ID35084
MeSH IDM0003345
PubMed CID146037278
MeSH IDM0003345

Synonyms (286)

Synonym
(s)-carbidopa hydrate
carbidopa monohydrate
(s)-(-)-carbidopa hydrate
chebi:3395 ,
(alphas)-alpha-hydrazino-3,4-dihydroxy-alpha-methylbenzenepropanoic acid monohydrate
carbidopum monohydricum
(2s)-3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid monohydrate
(2s)-3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid hydrate
(2s)-3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid--water (1/1)
l-alpha-(3,4-dihydroxybenzyl)-alpha-hydrazinopropionic acid monohydrate
carbidopa hydrate
carbidopa-1-wasser
hydrocinnamic acid, (-)-l-alpha-hydrazino-3,4-dihydroxy-alpha-methyl-, monohydrate
benzenepropanoic acid, alpha-hydrazino-3,4-dihydroxy-alpha-methyl-, monohydrate, (s)
mk-486
s(-)-alpha-hydrazino-3,4-dihydroxy-alpha-methylhydrocinnamic acid monohydrate
(-)-l-alpha-hydrazino-3,4-dihydroxy-alpha-methylhydrocinnamic acid monohydrate
benzenepropanoic acid, alpha-hydrazino-3,4-dihydroxy-alpha-methyl-, monohydrate, (s)-
38821-49-7
carbidopa hydrate (jp17)
lodosyn (tn)
D00558
carbidopa (usp)
carbidopum monohydrate
nsc-751137
CHEMBL1200748
nsc-758190
A824289
(s)-3-(3,4-dihydroxyphenyl)-2-hydrazino-2-methylpropionic acid monohydrate
AKOS015961206
mnx7r8c5vo ,
nsc 751137
carbidopa [usan:usp:inn:ban:jan]
nsc 758190
unii-mnx7r8c5vo
carbidopa component of parcopa
carbidopum monohydrate [who-ip latin]
carbidopa component of dopasnap
carbidopa [usp monograph]
benzenepropanoic acid, .alpha.-hydrazino-3,4-dihydroxy-.alpha.-methyl-, monohydrate, (s)-
sinemet component carbidopa
carbidopa [orange book]
carbidopa [ep monograph]
carbidopa component of carbilev
parcopa component carbidopa
carbidopa monohydrate [who-dd]
carbidopa [usp-rs]
levodopa/carbidopa/entacapone orion component carbidopa
carbidopa monohydrate [who-ip]
dopasnap component carbidopa
carbidopa [usan]
ipx-203 component carbidopa
stalevo component carbidopa
dhivy component carbidopa
carbidopa [vandf]
duopa component carbidopa
carbidopa hydrate [jan]
carbidopa component of rytary
carbidopa component of stalevo
rytary component carbidopa
corbilta component carbidopa
carbidopa component of duopa
carbidopa [mi]
carbilev component carbidopa
carbidopa [ema epar]
carbidopa component of levodopa/carbidopa/entacapone orion
carbidopa component of sinemet
carbidopa component of corbilta
carbidopa component of dhivy
S5448
SCHEMBL1217887
(s)-(-)-carbidopa monohydrate
carbidopa, european pharmacopoeia (ep) reference standard
carbidopa, united states pharmacopeia (usp) reference standard
QTAOMKOIBXZKND-PPHPATTJSA-N
CS-0013892
HY-B0311A
carbidopa, pharmaceutical secondary standard; certified reference material
carbidopa for system suitability, european pharmacopoeia (ep) reference standard
carbidopa; (2s)-3-(3,4-dihydroxyphenyl)-2-hydrazino-2-methylpropanoic acid monohydrate
(s)-3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid hydrate
(2s)-3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid;hydrate
DTXSID50904589
Q414225
carbidopamonohydrate
(s)-3-(3,4-dihydroxyphenyl)-2-hydrazineyl-2-methylpropanoic acid hydrate
mk 485
DIVK1C_000168
KBIO1_000168
lodosin
SPECTRUM_001314
adjunct to levodopa in parkinsonism
benzenepropanoic acid,4-dihydroxy-.alpha.-methyl-, (.+-.)-
nsc-92521
14585-65-0
mk 846
nsc92521
BSPBIO_003193
IDI1_000168
s-(-)-carbidopa, >=98% (tlc), powder
SPECTRUM5_001039
NCGC00095918-01
KBIO2_006930
KBIOGR_001126
KBIO2_004362
KBIO3_002693
KBIO2_001794
KBIOSS_001794
SPECTRUM3_001517
SPBIO_001250
SPECTRUM2_001115
SPECTRUM4_000603
NINDS_000168
SPECTRUM1502150
NCGC00095918-02
HMS2092D16
HMS500I10
FT-0664248
3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid
AKOS005721170
CHEMBL1179357
BBL011329
pharmakon1600-01502150
nsc758190
CCG-40066
NCGC00015185-03
NCGC00015185-02
STL146415
FT-0602918
FT-0623459
NCGC00015185-04
(-)-l-.alpha.-hydrazino-3,4-dihydroxy-.alpha.-methylhydrocinnamic acid monohydrate
benzenepropanoic acid, .alpha.-hydrazino-3,4-dihydroxy-.alpha.-methyl-, (s)-
BRD-A69512159-001-01-6
dl-.alpha.-hydrazino-3,4-dihydroxy-.alpha.-methylhydrocinnamic acid
benzenepropanoic acid, .alpha.-hydrazino-3,4-dihydroxy-.alpha.-methyl-
555up07d5n ,
nsc 92521
dl-mk 485
benzenepropanoic acid, alpha-hydrazino-3,4-dihydroxy-alpha-methyl-
dl-carbidopa
unii-555up07d5n
carbidopa anhydrous, dl-
302-53-4
alpha-methylhydrazinodopa
dl-carbidopa [who-dd]
carbidopa dl-form [mi]
dl-alpha-hydrazino-3,4-dihydroxy-alpha-methylhydrocinnamic acid
carbidopa, dl-
carbidopa, dl- anhydrous
l-alpha-hydrazino-alpha-methyl-beta-(3,4-dihydroxyphenyl)propionic acid
d,l carbidopa
SCHEMBL2688295
smr003309278
MLS006011894
TZFNLOMSOLWIDK-UHFFFAOYSA-N
hydrocinnamic acid, .alpha.-hydrazino-3,4-dihydroxy-.alpha.-methyl-, l-
.alpha.-methyldopahydrazine
l-.alpha.-methyl-.beta.-(3,4-dihydroxyphenyl)-.alpha.-hydrazinopropionic acid
hydrazino-.alpha.-methyldopa
l-.alpha.-methyldopahydrazine
(-)-l-.alpha.-hydrazino-3,4-dihydroxy-.alpha.-methylhydrocinnamic acid
3-(3,4-dihydroxyphenyl)-2-hydrazino-2-methylpropanoic acid-, (s)-
l-.alpha.-methyl-.alpha.-hydrazino-.beta.-(3,4-dihydroxyphenylpropionic acid
mfcd02114422
3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid (dl-n(nh2)ametyr(3-oh)-oh)
GS-3140
CHEBI:94430
sr-05000001752
SR-05000001752-1
J-017301
SBI-0051733.P002
Q27166292
BRD-A69512159-001-03-2
carbidopa (monohydrate)
d,l-carbidopa
DTXSID80860427
alpha-hydrazino-3,4-dihydroxy-alpha-methyl-benzenepropanoic acid
(2rs)-3-(3,4-dihydroxyphenyl)-2-hydrazino-2-methylpropanoic acid (rac-carbidopa)
carbidopum
(2s)-3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid
MLS002207014
CHEBI:39585 ,
AC-1676
HMS3266A20
AB00441332-06
CHEMBL1201236
smr000058235
s(-)-carbidopa
MLS000069628
(2s)-3-(3,4-dihydroxyphenyl)-2-hydrazino-2-methylpropanoic acid
28860-95-9
EU-0100382
lodosyn
SMP1_000057
hadrazino-alpha-methyldopa
l-alpha-methyl-beta-(3,4-dihydroxyphenyl)-alpha-hydrazinopropionic acid
alpha-hydrazino-alpha-methyl-beta-(3,4-dihydroxyphenyl)propionic acid
l-alpha-methyl-alpha-hydrazino-beta-(3,4-dihydroxyphenylpropionic acid
einecs 249-271-9
ccris 5093
mk 486
(-)-l-alpha-hydrazino-3,4-dihydroxy-alpha-methylhydrocinnamic acid
alpha-methyldopahydrazine
benzenepropanoic acid, alpha-hydrazino-3,4-dihydroxy-alpha-methyl-, (s)-
carbidopum [inn-latin]
hydrocinnamic acid, alpha-hydrazino-3,4-dihydroxy-alpha-methyl-, l-
tocris-0455
NCGC00024596-01
(s)-carbidopa
(s)-(-)-carbidopa
l-3-(3,4-dihydroxyphenyl)-2-methyl-2-hydrazinopropionic acid
DB00190
NCGC00024596-05
l-alpha-methyldopahydrazine
(alphas)-alpha-hydrazino-3,4-dihydroxy-alpha-methylbenzenepropanoic acid
carbidopa anhydrous
carbidopa (anhydrous)
LOPAC0_000382
NCGC00024596-06
s-(-)-carbidopa
NCGC00024596-03
C-126 ,
HMS2089B12
nsc751137
(2s)-3-(3,4-dihydroxyphenyl)-2-hydrazino-2-methylpropionic acid monohydrate
NCGC00024596-07
(s)-3-(3,4-dihydroxyphenyl)-2-hydrazino-2-methylpropionic acid
C2450
cas-28860-95-9
dtxsid4022735 ,
dtxcid502735
tox21_110910
c-dopa
CCG-204476
AKOS015969657
kr87b45rgh ,
carbidopa [inn]
nd0611
unii-kr87b45rgh
bdbm50418773
(2s)-3-(3,4-dihydroxyphenyl)-2-hydrazino-2-methyl-propanoic acid
carbidopa anhydrous [mi]
carbidopa [who-dd]
carbidopa, l- anhydrous
S1891
gtpl5159
HY-B0311
SCHEMBL35084
AB00441332-05
TZFNLOMSOLWIDK-JTQLQIEISA-N
NCGC00024596-08
(s)-?-hydrazino-?-methyl-?-(3,4-dihydroxyphenyl)propionic acid
(s)-3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid
MLS-0072919.P013
AB00441332_08
AB00441332_07
mfcd00069231
SR-01000597655-3
SR-01000597655-5
SR-01000597655-1
SR-01000597655-9
sr-01000597655
HMS3655G20
MLS-0072919
HMS3713L10
SW199080-2
kinson; 3-(3,4-dihydroxy-phenyl)-2-hydrazino-2-methyl-propionic acid
HMS3675M13
1426847-87-1
AS-16862
HMS3411M13
BRD-K78712176-001-07-5
HMS3884M14
3,3,3-trideuterio-2-[dideuterio-(3,4-dihydroxyphenyl)methyl]-2-hydrazinylpropanoic acid
(-)-l-alpha-hydrazino-3,4-dihydroxy-alpha-methylhydrocinamic acid
28860-95-9 (anhydrous)
SDCCGMLS-0072919.P025
(s)-3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoicacid
BC164279
s-(-)-carbidopa monohydrate
EN300-6733817
benzenepropanoic acid, .alpha.-hydrazinyl-3,4-dihydroxy-.alpha.-methyl-, (.alpha.s)-
Z2301684895
n-aminomethyldopa
carbidopa

Research Excerpts

Toxicity

levodopa/carbidopa treatment had no significant effect on ocular tolerability and anterior surface integrity. Co-administration of the two drugs led to a small increase in adverse events. No clinical improvements were observed with carbidopa/levodopa, tetrabenazine, or clonazepam.

ExcerptReferenceRelevance
" An understanding of structure-activity relationships (SARs) of chemicals can make a significant contribution to the identification of potential toxic effects early in the drug development process and aid in avoiding such problems."( Developing structure-activity relationships for the prediction of hepatotoxicity.
Fisk, L; Greene, N; Naven, RT; Note, RR; Patel, ML; Pelletier, DJ, 2010
)
0.36
"Many adverse drug reactions are caused by the cytochrome P450 (CYP)-dependent activation of drugs into reactive metabolites."( Development of a cell viability assay to assess drug metabolite structure-toxicity relationships.
Jones, LH; Nadanaciva, S; Rana, P; Will, Y, 2016
)
0.43
" LD50 values of three of these compounds were assessed after intraperitoneal administration with a special emphasis on interactions with drugs increasing catecholaminergic neurotransmission."( Acute toxicity of three new selective COMT inhibitors in mice with special emphasis on interactions with drugs increasing catecholaminergic neurotransmission.
Männistö, PT; Törnwall, M, 1991
)
0.28
"001) on 'Sinemet CR4' although median (range) total daily dose of levodopa was increased from 700 (375-2525) to 800 (400-2800) mg without any increase in adverse effects."( Controlled release levodopa/carbidopa (Sinemet CR4) in Parkinson's disease--an open evaluation of efficacy and safety.
Bulling, MT; Burns, RJ; Wing, LM, 1991
)
0.28
" Adverse effects were mild and transient and resolved with dosage manipulation or a divided dosage regimen."( CV 205-502: safety, tolerance to, and efficacy of increasing doses in patients with Parkinson's disease in a double-blind, placebo crossover study.
Gauger, LL; Olanow, CW; Werner, EG, 1989
)
0.28
" Twelve patients in each treatment group were pair-matched for age, PD duration, duration of levodopa therapy, dosage of Sinemet, PD disability, and side-effect prevalence at study entry."( Development and progression of motor fluctuations and side effects in Parkinson's disease: comparison of Sinemet CR versus carbidopa/levodopa.
Gilley, DW; Goetz, CG; Klawans, HL; Tanner, CM, 1989
)
0.28
" Following a discussion of the pharmacology of 5-HTP, the authors highlight adverse effects associated with its administration to depressed patients, neurologic subjects, and normal individuals."( 5-Hydroxytryptophan: a review of its antidepressant efficacy and adverse effects.
Byerley, WF; Grosser, BI; Judd, LL; Reimherr, FW, 1987
)
0.27
" Adverse responses to Sinemet treatment alone in parkinsonian animals included vomiting, dykinesias, dystonias, and stereotypic movements."( Glial cell line-derived neurotrophic factor-levodopa interactions and reduction of side effects in parkinsonian monkeys.
Collins, F; Gash, DM; Hilt, D; Kryscio, R; Lapchak, PA; Lebel, C; Miyoshi, Y; Ovadia, A; Zhang, Z, 1997
)
0.3
" Safety assessments included monitoring adverse events, and the Unified Parkinson's Disease Rating Scale (UPDRS) motor examination."( Concurrent administration of donepezil HCl and levodopa/carbidopa in patients with Parkinson's disease: assessment of pharmacokinetic changes and safety following multiple oral doses.
Cullen, EI; Hahne, WA; Kirby, L; Kumar, D; Okereke, CS; Pratt, RD, 2004
)
0.32
" The number of PD patients who experienced at least one adverse event during the study (13/25) was higher when they received donepezil HCl than when they received placebo (5/25), but was the same as healthy subjects who received donepezil HCl only (13/26)."( Concurrent administration of donepezil HCl and levodopa/carbidopa in patients with Parkinson's disease: assessment of pharmacokinetic changes and safety following multiple oral doses.
Cullen, EI; Hahne, WA; Kirby, L; Kumar, D; Okereke, CS; Pratt, RD, 2004
)
0.32
" Co-administration of the two drugs led to a small increase in adverse events compared with administration of levodopa/carbidopa alone in PD patients."( Concurrent administration of donepezil HCl and levodopa/carbidopa in patients with Parkinson's disease: assessment of pharmacokinetic changes and safety following multiple oral doses.
Cullen, EI; Hahne, WA; Kirby, L; Kumar, D; Okereke, CS; Pratt, RD, 2004
)
0.32
" Assessments included tolerability measures, adverse events profile, the disease-specific quality of life instrument PDQ-39, UPDRS parts II, III, and question 39 and investigator and patient global clinical assessments."( An open-label evaluation of the tolerability and safety of Stalevo (carbidopa, levodopa and entacapone) in Parkinson's disease patients experiencing wearing-off.
Guarnieri, M; Hubble, J; Koller, W; Rabinowicz, AL; Silver, D, 2005
)
0.33
"14 subjects (8%) discontinued treatment with Stalevo, of which 12 (7%) were due to adverse events."( An open-label evaluation of the tolerability and safety of Stalevo (carbidopa, levodopa and entacapone) in Parkinson's disease patients experiencing wearing-off.
Guarnieri, M; Hubble, J; Koller, W; Rabinowicz, AL; Silver, D, 2005
)
0.33
" Moreover, we described all adverse events (early and late) and studied daily levodopa doses before and 6 months after treatment."( [Continuous dopaminergic stimulation by Duodopa in advanced Parkinson's disease: Efficacy and safety].
Annic, A; Defebvre, L; Destée, A; Devos, D; Dujardin, K; Seguy, D,
)
0.13
" Adverse events were due to PEG positioning for four patients, the equipment (pump, connection, inner tube) for all patients and levodopa for four patients."( [Continuous dopaminergic stimulation by Duodopa in advanced Parkinson's disease: Efficacy and safety].
Annic, A; Defebvre, L; Destée, A; Devos, D; Dujardin, K; Seguy, D,
)
0.13
" We show that both Synphilin-1 and α-synuclein are toxic by themselves, but when co-expressed, they suppress their toxicity reciprocally."( Synphilin suppresses α-synuclein neurotoxicity in a Parkinson's disease Drosophila model.
Fonseca-Ornelas, L; Hernández-Vargas, R; López-González, I; Reynaud, E; Riesgo-Escovar, J; Zurita, M, 2011
)
0.37
" Due to the nature of the data, it is not possible to give exact numbers for the frequency of adverse events."( Duodopa® treatment for advanced Parkinson's disease: a review of efficacy and safety.
Nyholm, D, 2012
)
0.38
" Continuous LCIG infusion tolerability and adverse drug reactions were consistent with the known safety profile of previous studies."( Global long-term study on motor and non-motor symptoms and safety of levodopa-carbidopa intestinal gel in routine care of advanced Parkinson's disease patients; 12-month interim outcomes.
Antonini, A; Bergmann, L; Poewe, W; Preda, C; Yegin, A, 2015
)
0.42
" Most subjects (95%) reported ≥1 adverse event (AE); only 3 subjects (4."( Long-term safety and maintenance of efficacy of levodopa-carbidopa intestinal gel: an open-label extension of the double-blind pivotal study in advanced Parkinson's disease patients.
Benesh, J; Chatamra, K; Dubow, J; Eaton, S; Fernandez, HH; Hall, C; Slevin, JT; Zadikoff, C, 2015
)
0.42
" Adverse events of IPX066 from the different trials are presented."( Safety of IPX066 , an extended release carbidopa-levodopa formulation, for the treatment of Parkinson's disease.
Fahn, S; Kestenbaum, M, 2015
)
0.42
" Pharmacokinetics, adverse events (AEs), and efficacy were assessed."( Jejunal Infusion of levodopa-carbidopa intestinal gel versus oral administration of levodopa-carbidopa tablets in japanese subjects with advanced Parkinson's disease: pharmacokinetics and pilot efficacy and safety.
Benesh, J; Chatamra, K; Dutta, S; Mohamed, ME; Nagai, M; Othman, AA; Yanagawa, M, 2015
)
0.42
" Reported adverse events were comparable between LB and LC users."( Efficacy and safety of entacapone in levodopa/carbidopa versus levodopa/benserazide treated Parkinson's disease patients with wearing-off.
Kuoppamäki, M; Leinonen, M; Poewe, W, 2015
)
0.42
"Safety data from 4 studies were summarized using 2 overlapping data sets, permitting the separation of procedure/device-associated (n = 395) from non-procedure/device adverse events (n = 412)."( Integrated safety of levodopa-carbidopa intestinal gel from prospective clinical trials.
Benesh, JA; Boyd, JT; Chatamra, K; Chouinard, S; Draganov, PV; Dubow, J; Eaton, S; Espay, AJ; Fasano, A; Fernandez, HH; Fung, VS; Klostermann, F; Lang, AE; Lew, MF; Odin, P; Robieson, WZ; Rodriguez, RL; Schmulewitz, N; Slevin, JT; Stein, DA; Zadikoff, C, 2016
)
0.43
" Procedure/device adverse events occurred in 300 patients (76%), and serious adverse events occurred in 68 (17%); most frequently reported procedure/device adverse events and serious adverse events were complications of device insertion (41% and 8%, respectively) and abdominal pain (36% and 4%, respectively)."( Integrated safety of levodopa-carbidopa intestinal gel from prospective clinical trials.
Benesh, JA; Boyd, JT; Chatamra, K; Chouinard, S; Draganov, PV; Dubow, J; Eaton, S; Espay, AJ; Fasano, A; Fernandez, HH; Fung, VS; Klostermann, F; Lang, AE; Lew, MF; Odin, P; Robieson, WZ; Rodriguez, RL; Schmulewitz, N; Slevin, JT; Stein, DA; Zadikoff, C, 2016
)
0.43
" At higher doses, 50 mg/500 mg/125 mg SpinalonTM was considered to have reached maximum tolerated dose (MTD) since 3 out of 4 subjects experienced related adverse events including vomiting."( Double-Blind, Placebo-Controlled, Randomized Phase I/IIa Study (Safety and Efficacy) with Buspirone/Levodopa/Carbidopa (SpinalonTM) in Subjects with Complete AIS A or Motor-Complete AIS B Spinal Cord Injury.
Dyck, S; Guertin, PA; Kia, M; Matte, G; Mongeon, D; Prince, F; Radhakrishna, M; Roberts, M; Steuer, I; Vaillancourt, M, 2017
)
0.46
"LCIG infusion is a safe and efficacious treatment for the control of motor fluctuations, and for improvement or nonworsening of nonmotor aspects, long-term sustained, and feasible for use in routine care."( Long-term safety and effectiveness of levodopa-carbidopa intestinal gel infusion.
Abu-Suboh, M; Alvarez-Sabín, J; Armengol, JR; De Fabregues, O; Dot, J; Ferré, A; Gómez, MR; Hernández-Vara, J; Ibarria, M; Puiggros, C; Quintana, M; Raguer, N; Romero, O; Seoane, JL, 2017
)
0.46
" No systemic adverse effects were observed."( Ninety-day Local Tolerability and Toxicity Study of ND0612, a Novel Formulation of Levodopa/Carbidopa, Administered by Subcutaneous Continuous Infusion in Minipigs.
Manno, RA; Maronpot, RR; Nyska, A; Ramot, Y; Sacco, G; Shaltiel-Karyo, R; Tsarfati, Y; Yacoby-Zeevi, O, 2017
)
0.46
" For each subgroup, changes from baseline in PD diary measures ("off" time and "on" time with and without troublesome dyskinesia), Unified Parkinson Disease Rating Scale Parts II + III scores, and adverse events were analyzed, comparing ER CD-LD with the active comparator."( Effect of Concomitant Medications on the Safety and Efficacy of Extended-Release Carbidopa-Levodopa (IPX066) in Patients With Advanced Parkinson Disease: A Post Hoc Analysis.
Gupta, S; Kell, S; Khanna, S; LeWitt, PA; Rubens, R; Verhagen Metman, L,
)
0.13
" Although most patients (94%) reported an adverse event, the rate of adverse events decreased over time; 53% experienced a serious adverse event."( Long-term safety and efficacy of levodopa-carbidopa intestinal gel in advanced Parkinson's disease.
Benesh, J; Boyd, JT; Chatamra, K; Eaton, S; Espay, AJ; Facheris, MF; Fernandez, HH; Fung, VSC; Hall, C; Lew, MF; Robieson, WZ; Rodriguez, RL; Slevin, JT; Standaert, DG; Vanagunas, AD; Zadikoff, C, 2018
)
0.48
" Although adverse event rates decreased over time, vigilance is required for device-related complications and adverse events."( Long-term safety and efficacy of levodopa-carbidopa intestinal gel in advanced Parkinson's disease.
Benesh, J; Boyd, JT; Chatamra, K; Eaton, S; Espay, AJ; Facheris, MF; Fernandez, HH; Fung, VSC; Hall, C; Lew, MF; Robieson, WZ; Rodriguez, RL; Slevin, JT; Standaert, DG; Vanagunas, AD; Zadikoff, C, 2018
)
0.48
" Serious adverse events were largely similar between groups."( Safety and efficacy of co-careldopa as an add-on therapy to occupational and physical therapy in patients after stroke (DARS): a randomised, double-blind, placebo-controlled trial.
Bhakta, BB; Cozens, A; Farrin, AJ; Ford, GA; Hartley, S; Holloway, I; Meads, D; Pearn, J; Ruddock, S; Sackley, CM; Saloniki, EC; Santorelli, G; Walker, MF, 2019
)
0.51
" More patients in the levodopa monotherapy and LCIG polytherapy groups experienced treatment-related adverse drug reactions (ADRs) including dyskinesias and serious ADRs than did patients in the LCIG monotherapy group."( Levodopa-Carbidopa Intestinal Gel Monotherapy: GLORIA Registry Demographics, Efficacy, and Safety.
Antonini, A; Bergmann, L; Kukreja, P; Poewe, W; Robieson, WZ, 2019
)
0.51
" However, adverse events (AEs) are frequent."( Safety and effectiveness of levodopa-carbidopa intestinal gel for advanced Parkinson's disease: A large single-center study.
Baille, G; Blaise, AS; Carrière, N; Defebvre, L; Devos, D; Dujardin, K; Grolez, G; Kreisler, A; Kyheng, M; Moreau, C; Mutez, E; Seguy, D, 2020
)
0.56
" Other safety assessments included dyskinesia and adverse events (AEs)."( A 12-month, dose-level blinded safety and efficacy study of levodopa inhalation powder (CVT-301, Inbrija) in patients with Parkinson's disease.
Farbman, ES; Hauser, RA; Klingler, M; Lee, A; LeWitt, PA; Oh, C; Qian, J; Rudzińska, M; Waters, CH, 2020
)
0.56
" Moreover, patients will be actively monitored with regard to the occurrence of side effects of evaluated therapies, as well as adverse events that may be related to insufficient platelet inhibition (no-reflow phenomenon assessed immediately after PCI, administration of GPIIb/IIIa inhibitors during PCI, acute stent thrombosis)."( ANalgesic Efficacy and safety of MOrphiNe versus methoxyflurane in patients with acute myocardial infarction: the rationale and design of the ANEMON-SIRIO 3 study: a multicentre, open-label, phase II, randomised clinical trial.
Adamski, P; Buszko, K; Gasior, M; Gorący, J; Kleinrok, A; Kosobucka, A; Kubica, A; Kubica, J; Lesiak, M; Nadolny, K; Navarese, E; Niezgoda, P; Wojakowski, W, 2021
)
0.62
" Various LCIG procedure/device-associated adverse events (AEs) have been reported; however, reports on their treatment have been limited."( The impact of tube replacement timing during LCIG therapy on PEG-J associated adverse events: a retrospective multicenter observational study.
Fujioka, S; Fukuchi, T; Furukawa, K; Furune, S; Ikeda, Y; Jin, X; Kato, M; Koike, T; Kubota, E; Murakami, H; Sato, Y; Suzuki, T; Tsuboi, Y; Uehara, T; Yamashita, K; Yamazaki, Y; Yube, Y, 2021
)
0.62
" Therefore, the LCIG treatment is feasible and safe and is a unique treatment option for PD, requiring endoscopists' understanding and cooperation."( The impact of tube replacement timing during LCIG therapy on PEG-J associated adverse events: a retrospective multicenter observational study.
Fujioka, S; Fukuchi, T; Furukawa, K; Furune, S; Ikeda, Y; Jin, X; Kato, M; Koike, T; Kubota, E; Murakami, H; Sato, Y; Suzuki, T; Tsuboi, Y; Uehara, T; Yamashita, K; Yamazaki, Y; Yube, Y, 2021
)
0.62
"In summary, PIG-J insertion is safe with a similar complication rate to traditional PEG-J, well tolerated and effective for use in LCIG administration."( Per-oral image guided gastrojejunostomy insertion for levodopa-carbidopa intestinal gel in Parkinson's disease is safe and may be advantageous.
Baig, F; Boca, M; Cheminais, L; Collin, N; Mooney, L; Rolinski, M; Selikhova, M; Szewczyk-Krolikowski, K; Whone, A, 2021
)
0.62
" A total of 43 minor complications and 16 serious adverse events were reported."( [Adverse effects and complications of continuous intestinal infusion of levodopa-carbidopa in a cohort of patients with Parkinson's disease in a tertiary hospital].
Baviera-Muñoz, R; Campins-Romeu, M; Losada-López, M; Martínez-Torres, I; Morata-Martínez, C; Pérez-García, J; Pons-Beltrán, V; Sastre-Bataller, I, 2022
)
0.72
"We conducted a retrospective analysis of 79 PD patients treated with LCIG between 2005 and 2020 in two Italian Neurological Centers, recording all adverse events (AEs), including weight loss (WL)."( Long-term safety, discontinuation and mortality in an Italian cohort with advanced Parkinson's disease on levodopa/carbidopa intestinal gel infusion.
Antonini, A; Biundo, R; Calandrella, D; Carecchio, M; Carrer, T; Del Sorbo, F; Farinati, F; Garrì, F; Mainardi, M; Pezzoli, G; Pistonesi, F; Russo, FP; Sandre, M; Savarino, E; Soliveri, P; Weis, L; Zecchinelli, AL, 2022
)
0.72
" However, it requires invasive percutaneous endoscopic gastrojejunostomy (PEG-J) and may be associated with serious adverse effects (AE)."( Adverse effects of levodopa/carbidopa intrajejunal gel treatment: A single-center long-term follow-up study.
Kramberger, MG; Križnar, NZ; Ocepek, L; Pirtošek, Z; Premzl, M; Rajnar, R; Rus, T; Trošt, M, 2022
)
0.72
" Over this 4-week trial, and after a 4-month follow-up visit, levodopa/carbidopa treatment had no significant effect on ocular tolerability and anterior surface integrity, visual function, ocular health, refraction/ocular biometry, and did not induce any non-ocular adverse events."( The safety and tolerability of levodopa eye drops for the treatment of ocular disorders: A randomized first-in-human study.
Anstice, N; Ashby, R; Game, J; Jong, T; Karouta, C; Leung, M; Maddess, T; Morgan, IG; Sabeti, F; Thomson, K, 2022
)
0.72
" Adverse events were reported in 63 (85%) of 74 patients in the foslevodopa-foscarbidopa group versus 42 (63%) of 67 in the levodopa-carbidopa group, and incidences of serious adverse events were similar between the groups (six [8%] of 74 vs four [6%] of 67, respectively)."( Safety and efficacy of continuous subcutaneous foslevodopa-foscarbidopa in patients with advanced Parkinson's disease: a randomised, double-blind, active-controlled, phase 3 trial.
Aldred, J; Budur, K; Facheris, MF; Fisseha, N; Fung, VS; Hauser, RA; Jeong, A; Kimber, TE; Klos, K; Litvan, I; O'Neill, D; Robieson, WZ; Soileau, MJ; Spindler, MA; Standaert, DG; Talapala, S; Vaou, EO; Zheng, H, 2022
)
0.72
" The review included patients diagnosed with chorea and NKX2-1-RD genetic diagnosis, drug therapy as intervention, no comparator, and outcomes of chorea improvement and adverse events."( Systematic review of drug therapy for chorea in NXK2-1-related disorders: Efficacy and safety evidence from case studies and series.
Bachoud-Lévi, AC; Blasco-Amaro, JA; Capuano, A; Isabel-Gómez, R; Martín-Gómez, C; Nou-Fontanet, L; Ortigoza-Escobar, JD; Zorzi, G, 2023
)
0.91
" No clinical improvements were observed with carbidopa/levodopa, tetrabenazine, or clonazepam, and various adverse effects were reported."( Systematic review of drug therapy for chorea in NXK2-1-related disorders: Efficacy and safety evidence from case studies and series.
Bachoud-Lévi, AC; Blasco-Amaro, JA; Capuano, A; Isabel-Gómez, R; Martín-Gómez, C; Nou-Fontanet, L; Ortigoza-Escobar, JD; Zorzi, G, 2023
)
0.91

Pharmacokinetics

Plasma concentrations of levodopa, 3-O-methyldopa (3-OMD), 3,4-dihydroxyphenylacetic acid (DOPAC), homovanillic acid (HVA), carbidopa, and entacapone were determined for pharmacokinetic calculations.

ExcerptReferenceRelevance
") pharmacokinetic profile of two controlled-release products of levodopa (Madopar HBS and Sinemet CR) was compared to conventional Madopar capsules in 18 healthy volunteers in a cross-over, randomized design."( Comparative multiple-dose pharmacokinetics of controlled-release levodopa products.
Collin, C; Eckernäs, SA; Grahnén, A; Ling-Andersson, A; Nilsson, M; Tiger, G, 1992
)
0.28
" administration of L-dopa, but had no effect on the half-life (t1/2) for its distribution or elimination."( Peripheral pharmacokinetic handling and metabolism of L-dopa in the rat: the effect of route of administration and carbidopa pretreatment.
Jenner, P; Marsden, CD; Rose, S, 1991
)
0.28
" The pharmacokinetic and clinical data of these patients were compared retrospectively with those of Parkinsonian patients with fluctuations in motor performance but with preserved clinical responses to single oral doses of levodopa."( Clinical and pharmacokinetic comparison of oral and duodenal delivery of levodopa/carbidopa in patients with Parkinson's disease with a fluctuating response to levodopa.
Deleu, D; Ebinger, G; Michotte, Y, 1991
)
0.28
"We address, from a pharmacokinetic viewpoint, the important question of why some patients with clinical idiopathic Parkinson's disease experience a fall off in benefit from levodopa maintenance therapy."( Effect of duration of levodopa/decarboxylase inhibitor therapy on the pharmacokinetic handling of levodopa in elderly patients with idiopathic Parkinson's disease.
Bowes, SG; Deshmukh, AA; Dobbs, RJ; Dobbs, SM; Leeman, AL; Nicholson, PW; O'Neill, CJ, 1991
)
0.28
" For comparison, the pharmacokinetic parameters of both compounds were simultaneously determined in plasma using blood collection."( In vivo pharmacokinetics of levodopa and 3-O-methyldopa in muscle. A microdialysis study.
Deleu, D; Ebinger, G; Michotte, Y; Sarre, S, 1991
)
0.28
"Eight parkinsonian patients participated in a pharmacokinetic pharmacodynamic study of sequential doses of controlled-release carbidopa (CD)/levodopa (LD) at 4-hour intervals, with serial blood samples obtained before and after each dose."( Pharmacodynamic modeling of concentration-effect relationships after controlled-release carbidopa/levodopa (Sinemet CR4) in Parkinson's disease.
Berchou, RC; Galloway, MP; Kareti, D; LeWitt, PA; Nelson, MV, 1990
)
0.28
"To assess the relative influence of central pharmacodynamic and peripheral pharmacokinetic factors on the duration of motor response to levodopa, the relationship between motor function and plasma levodopa levels was studied in 31 Parkinsonian patients."( Levodopa peripheral pharmacokinetics and duration of motor response in Parkinson's disease.
Bovingdon, M; Frankel, JP; Kempster, PA; Lees, AJ; Stern, GM; Webster, R, 1989
)
0.28
" Delayed onset of antiparkinsonian effect of CR-4, resulting from an increase of Tmax for levodopa, was one of the major complaints and required additional small amounts of standard levodopa in three patients."( Clinical and pharmacokinetic evaluation of controlled-release levodopa/carbidopa (CR-4) in parkinsonian patients with severe motor fluctuations: a six month follow-up study.
Deleu, D; Ebinger, G; Jacques, M; Michotte, Y, 1989
)
0.28
"Seventeen patients with advanced Parkinson's disease who had fluctuations in motor performance while taking standard Sinemet (STD) 25/100 underwent daylong pharmacokinetic and clinical observation studies while taking both STD and Sinemet CR, a new controlled-release formulation containing 50 mg carbidopa and 200 mg levodopa."( A pharmacokinetic and pharmacodynamic comparison of Sinemet CR (50/200) and standard Sinemet (25/100).
Cedarbaum, JM; Kutt, H; McDowell, FH, 1989
)
0.28
" These observations were consistent with the pharmacokinetic characteristics of the formulation."( Pharmacokinetics and bioavailability of Sinemet CR: a summary of human studies.
August, TF; Bush, DF; Lasseter, KC; Musson, DG; Schwartz, S; Smith, ME; Titus, DC; Yeh, KC, 1989
)
0.28
" With pharmacokinetic studies correlated to clinical ratings, plasma levodopa was less variable during Sinemet CR treatment, and clinical responses showed greater uniformity."( Controlled-release carbidopa/levodopa (Sinemet 50/200 CR4): clinical and pharmacokinetic studies.
Berchou, RC; Galloway, MP; Kareti, D; Kesaree, N; LeWitt, PA; Nelson, MV; Schlick, P, 1989
)
0.28
" Delayed onset of antiparkinsonian effect of CR, resulting from an increase of Tmax for levodopa, was one of the major patient complaints and required additional small amounts of standard levodopa in some patients."( Controlled-release carbidopa/levodopa (CR) in parkinsonian patients with response fluctuations on standard levodopa treatment: clinical and pharmacokinetic observations.
Deleu, D; Ebinger, G; Jacques, M; Michotte, Y, 1989
)
0.28
" Mean L-DOPA plasma concentrations were fitted to a one-compartment pharmacokinetic model."( Pharmacokinetic and pharmacodynamic modeling of L-dopa plasma concentrations and clinical effects in Parkinson's disease after Sinemet.
Berchou, RC; Galloway, MP; Kareti, D; Kesaree, N; Lewitt, PA; Nelson, MV; Schlick, P, 1989
)
0.28
"The principal peripheral pharmacokinetic parameters of the levodopa/carbidopa association were investigated in 11 healthy volunteers and in 16 patients at various stages of Parkinson disease, with and without the on-off phenomenon."( Peripheral pharmacokinetic parameters of levodopa/carbidopa and the on-off phenomenon in parkinsonian patients.
Bergamasco, B; Chiadò, I; De Gennaro, T; Delsedime, M; Gilli, M; Rainero, I; Riccio, A, 1988
)
0.27
" 163) on the serum t1/2 and other pharmacokinetic parameters of co-administered L-3,4-dihydroxyphenylalanine (L-DOPA) were compared to those of the reversible inhibitor, carbidopa in rats."( A comparison of the effects of reversible and irreversible inhibitors of aromatic L-amino acid decarboxylase on the half-life and other pharmacokinetic parameters of oral L-3,4-dihydroxyphenylalanine.
Haegele, KD; Huebert, ND; Palfreyman, MG,
)
0.13
"A pharmacokinetic study of carbidopa in beagle dogs has been carried out after intravenous (4 mg kg-1) and oral (75 mg) administration."( The pharmacokinetic profile of carbidopa in dogs.
Menargues, A; Obach, R; Vallès, JM, 1984
)
0.27
" Pretreatment with carbidopa had no significant effect on the pharmacokinetic parameters of L-dopa in blood plasma, but resulted in an increase in the area under the concentration versus time curve (AUC) and elimination half-life (t1/2) of L-dopa in muscle ECF (0."( The effect of carbidopa and entacapone pretreatment on the L-dopa pharmacokinetics and metabolism in blood plasma and skeletal muscle in beagle dog: an in vivo microdialysis study.
Deleu, D; Ebinger, G; Michotte, Y; Sarre, S, 1995
)
0.29
" Plasma concentrations of levodopa; its metabolites 3-O-methyldopa (3-OMD), 3,4-dihydroxyphenylacetic acid (DOPAC), and homovanillic acid (HVA); as well as carbidopa and entacapone were determined for pharmacokinetic calculations."( The effect of catechol-O-methyl transferase inhibition by entacapone on the pharmacokinetics and metabolism of levodopa in healthy volunteers.
Gordin, A; Harjola, VP; Karlsson, M; Keränen, T; Korpela, K; Pentikäinen, PJ; Rita, H; Seppälä, L; Wikberg, T, 1993
)
0.29
" Plasma concentrations of levodopa, 3-O-methyldopa (3-OMD), 3,4-dihydroxyphenylacetic acid (DOPAC), homovanillic acid (HVA), carbidopa, and entacapone were determined for pharmacokinetic calculations."( Effect of entacapone, a COMT inhibitor, on the pharmacokinetics and metabolism of levodopa after administration of controlled-release levodopa-carbidopa in volunteers.
Ahtila, S; Gordin, A; Heinävaara, S; Kaakkola, S; Karlsson, M; Korpela, K; Männistö, PT; Tuomainen, P; Wikberg, T, 1995
)
0.29
"A pharmacokinetic model of oral levodopa is proposed to elucidate the effects of carbidopa on the pharmacokinetics of levodopa."( Pharmacokinetic model of oral levodopa and role of carbidopa in parkinsonian patients.
Hasegawa, T; Mizutani, Y; Nabeshima, T; Ogawa, M; Okada, Y, 1995
)
0.29
"We compared the pharmacokinetic and motor responses of Sinemet and Atamet (generic carbidopa/levodopa) in patients with Parkinson's disease."( Pharmacokinetic comparison of Sinemet and Atamet (generic carbidopa/levodopa): a single-dose study.
Koller, WC; Lyons, K; Marjama, J; McGuire, D; Pahwa, R; Silverstein, P; Ward, R; Zwiebel, F, 1996
)
0.29
" A moment analysis was also made to obtain pharmacokinetic parameters."( In vivo microdialysis to determine the relative pharmacokinetics of drugs.
Ichikawa, M; Matsuyama, K; Nakashima, M; Nakashima, MN; Sakurai, M; Sasaki, H; Zhao, MF, 1996
)
0.29
" A temporal variation of the kinetics of both L-dopa and carbidopa was demonstrated with higher plasma clearance and lower area under concentration curve after the administration at 2200 hours."( Circadian phase dependent pharmacokinetics of L-dopa, its main metabolites (3-OMD, HVA, DOPAC) and carbidopa in rats.
Andre, MH; Bruguerolle, B; Grignon, S, 1996
)
0.29
" As predicted from the plasma half-life (1."( Controlled release levodopa/carbidopa 25/100 (Sinemet CR 25/100): pharmacokinetics and clinical efficacy in untreated parkinsonian patients.
Block, GA; Cyhan, G; Gancher, ST; Hammerstad, JP; Nutt, JG; Woodward, WR, 1994
)
0.29
" Nevertheless, the pharmacokinetic profile of the preparation has a number of advantages over that of Sinemet, in that it offers a steadier climb to peak plasma concentrations that are less extreme and of greater duration."( Pharmacokinetics of continuous-release carbidopa/levodopa.
Mark, MH; Sage, JI, 1994
)
0.29
" All patients underwent 10-h pharmacokinetic and clinical evaluations while on Std-L and again while on L-CR."( Comparison of standard carbidopa-levodopa and sustained-release carbidopa-levodopa in Parkinson's disease: pharmacokinetic and quality-of-life measures.
Koller, WC; Lyons, K; McGuire, D; Pahwa, R; Robischon, M; Silverstein, P; Zwiebel, F, 1997
)
0.3
"Clinical pharmacology studies have shown that the catechol-O-methyltransferase inhibitor tolcapone increases the bioavailability area under the plasma concentration-time curve (AUC) and the plasma elimination half-life (t1/2) of levodopa."( The effect of tolcapone on levodopa pharmacokinetics is independent of levodopa/carbidopa formulation.
Aitken, J; Fotteler, B; Jorga, K; Nielsen, T; Sedek, G, 1998
)
0.3
"Thirty patients with Parkinson's disease not previously treated with dopamine agonists, of whom 28 produced evaluable pharmacokinetic data for ropinirole and 23 for L-dopa."( Lack of a pharmacokinetic interaction at steady state between ropinirole and L-dopa in patients with Parkinson's disease.
Beerahee, A; Burns, E; Citerone, DR; Cyronak, MJ; Fitzpatrick, KL; Leigh, TJ; Lennox, G; Lopez-Gil, A; Taylor, AC; Vakil, SD, 1999
)
0.3
"Primary end points were AUC0-8 and Cmax for ropinirole, and AUC0-8, AUC0-infinity and Cmax for L-dopa."( Lack of a pharmacokinetic interaction at steady state between ropinirole and L-dopa in patients with Parkinson's disease.
Beerahee, A; Burns, E; Citerone, DR; Cyronak, MJ; Fitzpatrick, KL; Leigh, TJ; Lennox, G; Lopez-Gil, A; Taylor, AC; Vakil, SD, 1999
)
0.3
"There are no pharmacokinetic grounds for adjusting dosages of either ropinirole or L-dopa when given in combination."( Lack of a pharmacokinetic interaction at steady state between ropinirole and L-dopa in patients with Parkinson's disease.
Beerahee, A; Burns, E; Citerone, DR; Cyronak, MJ; Fitzpatrick, KL; Leigh, TJ; Lennox, G; Lopez-Gil, A; Taylor, AC; Vakil, SD, 1999
)
0.3
" Pharmacokinetic parameters calculated from plasma drug concentrations on days 1-2 and 6-7 were compared with each other."( Pharmacokinetics of oral entacapone after frequent multiple dosing and effects on levodopa disposition.
Gordin, A; Huhtala, S; Huupponen, R; Korpela, K; Reinikainen, K; Rouru, J; Savontaus, E; Scheinin, M, 1999
)
0.3
"No changes in any pharmacokinetic parameters of carbidopa were observed."( COMT inhibition with tolcapone does not affect carbidopa pharmacokinetics in parkinsonian patients in levodopa/carbidopa (Sinemet).
Jorga, KM; Nicholl, DJ, 1999
)
0.3
"The pharmacokinetic model which best described the data was a two-compartment open model with first-order absorption and possibly a lag-time."( Population pharmacokinetics of tolcapone in parkinsonian patients in dose finding studies.
Banken, L; Fotteler, B; Jorga, K; Snell, P; Steimer, JL, 2000
)
0.31
" The parameter estimates obtained agreed with those obtained from conventional pharmacokinetic studies and no subpopulation was shown to be at risk of either under- or over-exposure to tolcapone."( Population pharmacokinetics of tolcapone in parkinsonian patients in dose finding studies.
Banken, L; Fotteler, B; Jorga, K; Snell, P; Steimer, JL, 2000
)
0.31
" Cmax (maximal L-DOPA concentration reached) was 3161 +/- 345 ng/ml for Sinemet and 3274 +/- 520 ng/ml for Grifoparkin (NS)."( [Pharmacokinetic comparison of Sinemet and Grifoparkin (levodopa/carbidopa 250/25 mg) in Parkinson s disease: a single dose study].
Chaná, P; Fierro, A; Reyes-Parada, M; Sáez-Briones, P, 2003
)
0.32
"The aim of this trial was to evaluate the effects of the COMT inhibitor entacapone on both the pharmacokinetic profile and clinical efficacy of controlled release levodopa in Parkinson's disease (PD) patients."( Entacapone improves the pharmacokinetic and therapeutic response of controlled release levodopa/carbidopa in Parkinson's patients.
Barbato, L; Bolner, A; Caraceni, T; Nordera, G; Stocchi, F, 2004
)
0.32
"This study investigated the tolerability and the pharmacokinetic and pharmacodynamic interactions between single oral administration of BIA 3-202 (50 mg, 100 mg, 200 mg, and 400 mg), a novel catechol-O-methyltransferase (COMT) inhibitor, and standard carbidopa/levodopa 25 mg/100 mg (Sinemet 25/100) in healthy adult volunteers."( Pharmacokinetic-pharmacodynamic interaction between BIA 3-202, a novel COMT inhibitor, and levodopa/carbidopa.
Almeida, L; Falcão, A; Loureiro, A; Machado, R; Maia, J; Silveira, P; Soares-da-Silva, P; Torrão, L; Vaz-da-Silva, M; Wright, L,
)
0.13
" The aim was to determine whether delayed entacapone administration may prolong CR L-dopa half-life in comparison to the co-administration modality."( Temporal administration of entacapone with slow release L-dopa: pharmacokinetic profile and clinical outcome.
Bassi, A; Brusa, L; Fedele, E; Giacomini, P; Lunardi, G; Pierantozzi, M; Stanzione, P, 2004
)
0.32
" Blood samples were collected before, during and after the 15 doses of donepezil HCl for pharmacokinetic (PK) assessments."( Concurrent administration of donepezil HCl and levodopa/carbidopa in patients with Parkinson's disease: assessment of pharmacokinetic changes and safety following multiple oral doses.
Cullen, EI; Hahne, WA; Kirby, L; Kumar, D; Okereke, CS; Pratt, RD, 2004
)
0.32
" ovata husk modifies in rabbits the bioavailability and other pharmacokinetic parameters of levodopa (20 mg/kg) when administered by the oral route with carbidopa (5 mg/kg)."( Hydrosoluble fiber (Plantago ovata husk) and levodopa II: experimental study of the pharmacokinetic interaction in the presence of carbidopa.
Calle, A; Carriedo, D; Diez, MJ; Fernandez, N; Garcia, JJ; Gonzalez, A; Sahagun, A; Sierra, M, 2005
)
0.33
"Quantitative structure-pharmacokinetic relationships (QSPkR) have increasingly been used for the prediction of the pharmacokinetic properties of drug leads."( Quantitative structure-pharmacokinetic relationships for drug clearance by using statistical learning methods.
Chen, YZ; Li, ZR; Yap, CW, 2006
)
0.33
" A two-compartment pharmacokinetic model with central volume (V1), peripheral volume (V2), clearance (CL) and inter-compartmental clearance (CL(ic)) was used to fit plasma levodopa concentrations."( Importance of within subject variation in levodopa pharmacokinetics: a 4 year cohort study in Parkinson's disease.
Chan, PL; Holford, NH; Nutt, JG, 2005
)
0.33
" As most patients require the superior efficacy of levodopa during the course of their disease, an appreciation of the changing response to levodopa over time and an understanding of the pharmacokinetic principles underlying the development of complications such as wearing-off is essential in the long-term management of the patient."( The levodopa wearing-off phenomenon in Parkinson's disease: pharmacokinetic considerations.
Stocchi, F, 2006
)
0.33
" Levodopa pharmacokinetic profiles remain unchanged after multiple doses, and are similar between healthy volunteers and patients and among patients at different stages of disease."( The pharmacokinetics and pharmacodynamics of levodopa in the treatment of Parkinson's disease.
Hsu, A; Khor, SP, 2007
)
0.34
"In this study, scintigraphic and pharmacokinetic studies were conducted on 10 healthy, fed volunteers."( Pharmacoscintigraphic and pharmacokinetic evaluation on healthy human volunteers of sustained-release floating minitablets containing levodopa and carbidopa.
Amighi, K; Blocklet, D; Deleuze, P; Goldman, S; Goole, J; Pandolfo, M; Pilcer, G; Van Gansbeke, B; Vanderbist, F, 2008
)
0.35
" Pharmacokinetic (PK) parameters determined for levodopa included Cmin, Cmax, Cmax - Cmin, AUC, t(1/2), and tmax."( Comparison of pharmacokinetic profile of levodopa throughout the day between levodopa/carbidopa/entacapone and levodopa/carbidopa when administered four or five times daily.
Ellmén, J; Hänninen, J; Hartikainen, P; Kaakkola, S; Kaasinen, V; Kailajärvi, M; Korpela, K; Kuoppamäki, M; Löyttyniemi, E; Lyytinen, J; Marttila, R; Ruokoniemi, P, 2009
)
0.35
"This open-label phase I trial assessed potential pharmacokinetic interactions between oral levodopa/carbidopa and transdermal rotigotine treatment at steady state."( Lack of pharmacokinetic interactions between transdermal rotigotine and oral levodopa/carbidopa.
Andreas, JO; Boekens, H; Braun, M; Cawello, W; Horstmann, R, 2009
)
0.35
"The aims of the present study were to investigate the pharmacokinetic and pharmacodynamic (pk/pd) relationship of levodopa (l-dopa) in patients with advanced Parkinson disease (PD) and also to evaluate the effect of tolcapone on the pk/pd analysis of l-dopa in 1 patient with severe dyskinesias and fluctuations."( Pharmacokinetic-pharmacodynamic modeling of levodopa in patients with advanced Parkinson disease.
Adamiak, U; Bialecka, M; Gawronska-Szklarz, B; Kaldonska, M; Klodowska-Duda, G; Safranow, K; Wyska, E, 2010
)
0.36
"The investigators conducted a single-dose pharmacokinetic (PK) study of levodopa/carbidopa delivered from novel gastric-retentive extended-release (ER) tablets versus a comparator ER tablet (M-ER) in patients with Parkinson's disease."( Pharmacokinetics of levodopa/carbidopa delivered from gastric-retentive extended-release formulations in patients with Parkinson's disease.
Chen, C; Cowles, VE; Illarioshkin, SN; Stolyarov, ID; Sweeney, M, 2012
)
0.38
" Blood samples were collected for pharmacokinetic (PK) analysis, and a finger-tapping test was performed to assess pharmacodynamics."( Pharmacokinetics and pharmacodynamics of gastroretentive delivery of levodopa/carbidopa in patients with Parkinson disease.
Chen, C; Cowles, VE; Illarioshkin, SN; Stolyarov, ID; Sweeney, M,
)
0.13
" The dispersible levodopa/benserazide formulation showed earlier time to Cmax and significantly higher Cmax for levodopa in plasma compared to the microtablets."( Pharmacokinetics of levodopa/carbidopa microtablets versus levodopa/benserazide and levodopa/carbidopa in healthy volunteers.
Aquilonius, SM; Bäckström, T; Ehrnebo, M; Gomes-Trolin, C; Lewander, T; Nyholm, D; Nyström, C; Panagiotidis, G,
)
0.13
"The new levodopa/carbidopa microtablets had a pharmacokinetic profile that would allow for a convenient switch of therapy from standard tablets."( Pharmacokinetics of levodopa/carbidopa microtablets versus levodopa/benserazide and levodopa/carbidopa in healthy volunteers.
Aquilonius, SM; Bäckström, T; Ehrnebo, M; Gomes-Trolin, C; Lewander, T; Nyholm, D; Nyström, C; Panagiotidis, G,
)
0.13
" This was the first study designed to characterize the full pharmacokinetic profiles of levodopa, carbidopa, and levodopa metabolite, 3-O-methyldopa (3-OMD) with 16-h LCIG infusion."( Pharmacokinetics of levodopa, carbidopa, and 3-O-methyldopa following 16-hour jejunal infusion of levodopa-carbidopa intestinal gel in advanced Parkinson's disease patients.
Chatamra, K; Dutta, S; Johansson, A; Locke, C; Nyholm, D; Odin, P; Othman, AA, 2013
)
0.39
"A pharmacodynamic model is presented to describe the motor effects (tapping rate, Unified Parkinson's Disease Rating Scale [UPDRS] Part III, and investigator-rating of ON/OFF, including dyskinesia) of levodopa (LD) in patients with advanced idiopathic Parkinson's disease (PD) treated with immediate-release (IR) carbidopa-levodopa (CD-LD) or an extended-release (ER) formulation of CD-LD (IPX066)."( Population pharmacodynamics of IPX066: an oral extended-release capsule formulation of carbidopa-levodopa, and immediate-release carbidopa-levodopa in patients with advanced Parkinson's disease.
Gupta, S; Hsu, A; Mao, Z; Modi, NB, 2013
)
0.39
" Pharmacokinetic trials of oral LD/dopa decarboxylase inhibitor (DDCI) formulations with and without the catechol-O-methyltransferase inhibitor, entacapone, showed that repeated administration with entacapone causes an increase in both the maximum concentration (Cmax) and time to Cmax (Tmax) of LD."( Pharmacokinetic considerations for the use of levodopa in the treatment of Parkinson disease: focus on levodopa/carbidopa/entacapone for treatment of levodopa-associated motor complications.
Müller, T,
)
0.13
" The final model was internally evaluated using stochastic simulations and bootstrap and externally evaluated using sparse pharmacokinetic data from 311 subjects treated in a long term safety study of LCIG."( Population pharmacokinetics of levodopa in subjects with advanced Parkinson's disease: levodopa-carbidopa intestinal gel infusion vs. oral tablets.
Dutta, S; Othman, AA, 2014
)
0.4
"In Japanese subjects with advanced PD, LCIG resulted in an improved pharmacokinetic profile that appeared to be associated with reduced motor complications compared with LC-oral."( Jejunal Infusion of levodopa-carbidopa intestinal gel versus oral administration of levodopa-carbidopa tablets in japanese subjects with advanced Parkinson's disease: pharmacokinetics and pilot efficacy and safety.
Benesh, J; Chatamra, K; Dutta, S; Mohamed, ME; Nagai, M; Othman, AA; Yanagawa, M, 2015
)
0.42
" Comparison of 1 and 2 IPX066 245-mg LD capsules showed dose-proportional pharmacokinetics for Cmax and AUCt."( Clinical Pharmacokinetics of IPX066: Evaluation of Dose Proportionality and Effect of Food in Healthy Volunteers.
Gupta, S; Hsu, A; Modi, NB; Yao, HM,
)
0.13
" From the comparison of the results of pharmacokinetic study before and after taking LD/CD or LD/CD/soy, the estimated marginal mean (EMM) of HVA after LD/CD/soy increased in the PD group."( Effects of soybean ingestion on pharmacokinetics of levodopa and motor symptoms of Parkinson's disease--In relation to the effects of Mucuna pruriens.
Ito, H; Koh, J; Kondo, T; Nagashima, Y; Sakata, M, 2016
)
0.43
"To compare the levodopa/carbidopa (LC) and levodopa/benserazide (LB) pharmacokinetic profiles following repeated doses of opicapone (OPC) administered apart from levodopa."( Effect of opicapone multiple-dose regimens on levodopa pharmacokinetics.
Almeida, L; Bonifácio, MJ; Falcão, A; Fauchoux, N; Loureiro, AI; Nunes, T; Pinto, R; Rocha, JF; Santos, A; Sicard, É; Soares-da-Silva, P, 2017
)
0.46
"This study aimed to investigate the pharmacokinetic profiles of levodopa-carbidopa and the motor function following a single-dose microtablet administration in Parkinson's disease."( Levodopa/carbidopa microtablets in Parkinson's disease: a study of pharmacokinetics and blinded motor assessment.
Aquilonius, SM; Askmark, H; Bergquist, F; Constantinescu, R; Ericsson, A; Lycke, S; Medvedev, A; Memedi, M; Nyholm, D; Ohlsson, F; Senek, M; Spira, J; Westin, J, 2017
)
0.46
" We present in this report the comparative pharmacokinetic profiles of LCIG and LC-oral from this pivotal study."( Levodopa-Carbidopa Intestinal Gel Pharmacokinetics: Lower Variability than Oral Levodopa-Carbidopa.
Chatamra, K; Dutta, S; Locke, C; Othman, AA; Rosebraugh, M, 2017
)
0.46
" Moreover, the bioanalytical method was applied to a pharmacokinetic study in healthy volunteers."( Sensitive LC-MS/MS method for quantitation of levodopa and carbidopa in plasma: application to a pharmacokinetic study.
Brandão, AH; Davanço, MG; de Campos, DR; Ferreira, MS; Gabbai, JJ; Júnior, PS; Martho, AC; Meulman, J; Noboli, AC; Pepi, GT; Previde, N; Riccio, MF, 2018
)
0.48
" We proposed mechanisms for the interaction between LDCD and MgO and conducted pharmacokinetic studies on rats and humans."( Effects of magnesium oxide on pharmacokinetics of L-dopa/carbidopa and assessment of pharmacodynamic changes by a model-based simulation.
Hirakawa, M; Hirota, T; Ieiri, I; Irie, S; Kashihara, Y; Kimura, M; Kubota, T; Matsuki, S; Terao, Y; Yoda, K, 2019
)
0.51
" We conducted pharmacokinetic interaction studies of MgO and LDCD on rats and healthy volunteers."( Effects of magnesium oxide on pharmacokinetics of L-dopa/carbidopa and assessment of pharmacodynamic changes by a model-based simulation.
Hirakawa, M; Hirota, T; Ieiri, I; Irie, S; Kashihara, Y; Kimura, M; Kubota, T; Matsuki, S; Terao, Y; Yoda, K, 2019
)
0.51
"This is the first study to show a clear pharmacokinetic interaction between LDCD and MgO in humans."( Effects of magnesium oxide on pharmacokinetics of L-dopa/carbidopa and assessment of pharmacodynamic changes by a model-based simulation.
Hirakawa, M; Hirota, T; Ieiri, I; Irie, S; Kashihara, Y; Kimura, M; Kubota, T; Matsuki, S; Terao, Y; Yoda, K, 2019
)
0.51
"Compared with Rytary and IR CD-LD, IPX203 had a longer pharmacodynamic effect consistent with LD pharmacokinetics for the 3 treatments."( Single-Dose Pharmacokinetics and Pharmacodynamics of IPX203 in Patients With Advanced Parkinson Disease: A Comparison With Immediate-Release Carbidopa-Levodopa and With Extended-Release Carbidopa-Levodopa Capsules.
Gupta, S; Khanna, S; Mittur, A; Modi, NB; Rubens, R,
)
0.13
"We conducted pharmacokinetic experiments in pigs, mice, and humans to characterize effects of continuous subcutaneous CD delivery co-administered with LD as compared with oral LD/CD administration on LD pharmacokinetics."( Subcutaneous Administration of Carbidopa Enhances Oral Levodopa Pharmacokinetics: A Series of Studies Conducted in Pigs, Mice, and Healthy Volunteers.
Caraco, Y; LeWitt, PA; Nemas, M; Oren, S; Shaltiel-Karyo, R; Weinstock, I; Yacoby-Zeevi, O; Zawaznik, E,
)
0.13
" Pharmacokinetic and motor assessments were conducted on days 1 and 15 of each treatment period."( Pharmacodynamics, Efficacy, and Safety of IPX203 in Parkinson Disease Patients With Motor Fluctuations.
Dinh, P; Gupta, S; Mittur, A; Modi, NB; Rubens, R,
)
0.13
"Inhibiting catechol-O-methyltransferase extends the plasma half-life of levodopa, potentially allowing physicians to optimize the levodopa regimen in patients with Parkinson's disease (PD) experiencing motor fluctuations."( Effect of Opicapone on Levodopa Pharmacokinetics in Patients with Fluctuating Parkinson's Disease.
Antonini, A; Ferreira, JJ; Guimarães, B; Moreira, J; Poewe, W; Rascol, O; Rocha, JF; Soares-da-Silva, P; Stocchi, F, 2022
)
0.72
" Despite a 100 mg lower total levodopa/carbidopa daily dose, adding opicapone 50 mg at least doubled the levodopa plasma half-life and minimal concentrations, with a significant ≈30% increase in total exposure."( Effect of Opicapone on Levodopa Pharmacokinetics in Patients with Fluctuating Parkinson's Disease.
Antonini, A; Ferreira, JJ; Guimarães, B; Moreira, J; Poewe, W; Rascol, O; Rocha, JF; Soares-da-Silva, P; Stocchi, F, 2022
)
0.72
" Despite the lower levodopa dose, modifying the levodopa pharmacokinetic profile with opicapone was associated with decreased off time and increased on time."( Effect of Opicapone on Levodopa Pharmacokinetics in Patients with Fluctuating Parkinson's Disease.
Antonini, A; Ferreira, JJ; Guimarães, B; Moreira, J; Poewe, W; Rascol, O; Rocha, JF; Soares-da-Silva, P; Stocchi, F, 2022
)
0.72
"A double-blind, placebo-controlled, randomized, crossover, phase I, pharmacokinetic study with 25 healthy volunteers was conducted."( Effect of Carbidopa Dose on Levodopa Pharmacokinetics With and Without Catechol-O-Methyltransferase Inhibition in Healthy Subjects.
Ellmén, J; Kuoppamäki, M; Rouru, J; Sjöstedt, N; Tuunainen, J; Vahteristo, M; Yliperttula, M, 2023
)
0.91
" Theoretical pharmacokinetic simulations suggested that the plasma profile of oral IR levodopa can be even further improved by optimizing AADC and COMT inhibition."( Effect of Carbidopa Dose on Levodopa Pharmacokinetics With and Without Catechol-O-Methyltransferase Inhibition in Healthy Subjects.
Ellmén, J; Kuoppamäki, M; Rouru, J; Sjöstedt, N; Tuunainen, J; Vahteristo, M; Yliperttula, M, 2023
)
0.91
" At steady-state (day 14), opicapone Cmax (peak plasma concentration) and AUC 0-last (area under the curve-time curve) were 459 ± 252 ng/mL and 2022 ± 783 ng/mL·h, respectively."( Opicapone Pharmacokinetics and Effects on Catechol- O -Methyltransferase Activity and Levodopa Pharmacokinetics in Patients With Parkinson Disease Receiving Carbidopa/Levodopa.
Jimenez, R; Kieburtz, KD; Klepitskaya, O; LeWitt, P; Liang, GS; Loewen, G; Olanow, CW; Olson, K,
)
0.13

Compound-Compound Interactions

A recently developed oral serotonergic challenge test. consisting of 5-Hydroxytryptophane (5-HTP, 200 mg) combined with carbidopa (CBD, 100 mg + 50 mg) exhibited dose-related neuroendocrine responsiveness.

ExcerptReferenceRelevance
"The effects of carbidopa combined with levodopa (carbidopa/levodopa) and levodopa alone on the cardiovascular system of patients with Parkinson's disease were evaluated."( Comparison of dopa decarboxylase inhibitor (carbidopa) combined with levodopa and levodopa alone on the cardiovascular system of patients with parkinson's disease.
Leibowitz, M; Lieberman, A, 1975
)
0.25
" With the combination medication, levodopa-carbidopa, on an average 420 mg/42 mg combined with 950 mg of levodopa in slow release form, a statistically significant improvement in parkinsonian signs could be achieved without any worsening of the side effects."( Effect of a slow release preparation of levodopa on Parkinson's disease in combination with a peripheral decarboxylase inhibitor.
Hokkanen, E; Myllylä, VV; Saarinen, A; Tokola, O, 1978
)
0.26
" Levodopa treatment, alone or in combination with two different dopa-decarboxylase inhibitors, benserazide and carbidopa, does not modify the renin response to posture or to frusemide."( Effects of levodopa alone and in combination with dopa-decarboxylase inhibitors on plasma renin activity in patients with Parkinson's disease.
Dessi'-Fulgheri, P; Glorioso, N; Monaco, F; Rappelli, A; Tedde, R, 1978
)
0.26
" (1) Concentrations of dopa and dopamine in plasma and brain were measured in cats following intraperitoneal injection of L-dopa alone (100 mg/kg) or combined with MK-486 (10 mg/kg)."( L-dopa therapy combined with peripheral decarboxylase inhibitor (MK-486) in Parkinsonism.
Kishikawa, H; Ohmoto, T, 1975
)
0.25
"Thirty patients with Parkinson's disease were treated for four weeks with levodopa combined with an inhibitor of extracerebral dopa decarboxylase, L-alpha-methyldopahydrazine (MK 486)."( Treatment of Parkinson's disease with levodopa combined with L-alpha-methyldopahydrazine, an inhibitor of extracerebral DOPA decarboxylase.
Barry, PE; Marsden, CD; Parkes, JD; Zilkha, KJ, 1973
)
0.25
" In the present study, we examined tissues from normal macaque monkeys treated for 13 weeks with high doses of L-DOPA (in combination with the peripheral decarboxylase inhibitor, carbidopa) and/or the COMT inhibitor, entacapone."( Chronic high dose L-DOPA alone or in combination with the COMT inhibitor entacapone does not increase oxidative damage or impair the function of the nigro-striatal pathway in normal cynomologus monkeys.
Halliwell, B; Jenner, P; Lyras, L; McKenzie, G; Pearce, RK; Zeng, BY, 2002
)
0.31
"A recently developed oral serotonergic challenge test consisting of 5-Hydroxytryptophane (5-HTP, 200 mg) combined with carbidopa (CBD, 100 mg + 50 mg) exhibited dose-related neuroendocrine responsiveness and predictable pharmacokinetics."( Enhanced tolerability of the 5-hydroxytryptophane challenge test combined with granisetron.
de Kam, ML; Derijk, RH; Jacobs, GE; Kamerling, IM; van Gerven, JM; van Pelt, J; Zitman, FG, 2010
)
0.36
" These results suggest that pramipexole could be administered with a reduced dose of levodopa to minimize dyskinesia in Parkinson's disease while maintaining therapeutic efficacy."( Pramipexole combined with levodopa improves motor function but reduces dyskinesia in MPTP-treated common marmosets.
Jackson, MJ; Jenner, P; Olanow, CW; Rose, S; Tayarani-Binazir, KA, 2010
)
0.36
"An HPLC method combined with second-order calibration based on alternating trilinear decomposition (ATLD) algorithm has been developed for the quantitative analysis of levodopa (LVD), carbidopa (CBD) and methyldopa (MTD) in human plasma samples."( Quantitative analysis of levodopa, carbidopa and methyldopa in human plasma samples using HPLC-DAD combined with second-order calibration based on alternating trilinear decomposition algorithm.
Fu, HY; Li, SF; Li, YN; Nie, JF; Wu, HL; Yu, RQ; Yu, YJ, 2010
)
0.36
"The aim of this review is to describe the rationale and main underlying reasons for undertaking, during clinical development, the study of drug candidates used separately and/or in combination with other technologies."( Rationale for Assessing Safety and Efficacy of Drug Candidates Alone and in Combination with Medical Devices: The Case Study of SpinalonTM.
Guertin, PA, 2017
)
0.46

Bioavailability

The presence of carbidopa increases the bioavailability of levodopa within the eye, enhancing its antimyopic effects. topical application showing the greatest efficacy. The novel COMT inhibitor BIA 3-202 increased theBioavailability of Levodopa and reduced the formation of 3-OMD.

ExcerptReferenceRelevance
"The ATP-binding cassette transporter P-glycoprotein (P-gp) is known to limit both brain penetration and oral bioavailability of many chemotherapy drugs."( A High-Throughput Screen of a Library of Therapeutics Identifies Cytotoxic Substrates of P-glycoprotein.
Ambudkar, SV; Brimacombe, KR; Chen, L; Gottesman, MM; Guha, R; Hall, MD; Klumpp-Thomas, C; Lee, OW; Lee, TD; Lusvarghi, S; Robey, RW; Shen, M; Tebase, BG, 2019
)
0.51
"The ATP-binding cassette transporter P-glycoprotein (P-gp) is known to limit both brain penetration and oral bioavailability of many chemotherapy drugs."( A High-Throughput Screen of a Library of Therapeutics Identifies Cytotoxic Substrates of P-glycoprotein.
Ambudkar, SV; Brimacombe, KR; Chen, L; Gottesman, MM; Guha, R; Hall, MD; Klumpp-Thomas, C; Lee, OW; Lee, TD; Lusvarghi, S; Robey, RW; Shen, M; Tebase, BG, 2019
)
0.51
" Almost equivalent bioavailability (85-90%) of levodopa was demonstrated for the controlled-release formulations relative to that of conventional Madopar capsules."( Comparative multiple-dose pharmacokinetics of controlled-release levodopa products.
Collin, C; Eckernäs, SA; Grahnén, A; Ling-Andersson, A; Nilsson, M; Tiger, G, 1992
)
0.28
" Bioavailability of Sinemet CR levodopa is less than that of standard Sinemet, so a slightly higher total daily levodopa dose is required to achieve a comparable effect; but because Sinemet CR is absorbed much more slowly than is the standard preparation, dosing frequency can be reduced by up to half."( The use of Sinemet CR in the management of mild to moderate Parkinson's disease.
Rodnitzky, RL, 1992
)
0.28
" A significant negative regression was also seen of duration of therapy on the dose absorbed per unit distribution volume, but not on the elimination rate constant, indicating a decrease in bioavailability and/or an increase in distribution volume with duration."( Effect of duration of levodopa/decarboxylase inhibitor therapy on the pharmacokinetic handling of levodopa in elderly patients with idiopathic Parkinson's disease.
Bowes, SG; Deshmukh, AA; Dobbs, RJ; Dobbs, SM; Leeman, AL; Nicholson, PW; O'Neill, CJ, 1991
)
0.28
" The methods have been utilized to evaluate the pharmacokinetics and bioavailability of oral dosage forms containing levodopa and carbidopa."( Simultaneous high-performance liquid chromatographic analysis of carbidopa, levodopa and 3-O-methyldopa in plasma and carbidopa, levodopa and dopamine in urine using electrochemical detection.
August, TF; Bayne, WF; Eisenhandler, R; Musson, DG; Titus, DC; Yeh, KC, 1990
)
0.28
" The increase in FDOPA bioavailability to the brain resulted in greater selective FDA accumulation in striatum."( The effects of carbidopa on the metabolism of 6-[18F]fluoro-L-dopa in rats, monkeys and humans.
Barrio, JR; Hoffman, JM; Luxen, A; Melega, WP; Nissenson, CH; Phelps, ME, 1990
)
0.28
" Nitecapone slightly but significantly increased the relative bioavailability of L-Dopa."( Effect of a novel catechol-O-methyltransferase inhibitor, nitecapone, on the metabolism of L-dopa in healthy volunteers.
Gordin, A; Järvinen, M; Kaakkola, S; Nissinen, E; Pentikäinen, PJ; Rita, H; Schultz, E; Wikberg, T, 1990
)
0.28
" This study examined the effects of administering ferrous sulphate 325 mg with Sinemet (100/25 tablet) on levodopa and carbidopa bioavailability and on signs of Parkinson's disease in nine patients."( Sinemet-ferrous sulphate interaction in patients with Parkinson's disease.
Campbell, NR; Goodridge, AE; Hasinoff, BB; Kara, M; Rankine, D, 1990
)
0.28
" Mean levodopa plasma levels were comparable between the two types of formulations during optimal treatment, however systemic bioavailability was significantly higher with CR-4."( Clinical and pharmacokinetic evaluation of controlled-release levodopa/carbidopa (CR-4) in parkinsonian patients with severe motor fluctuations: a six month follow-up study.
Deleu, D; Ebinger, G; Jacques, M; Michotte, Y, 1989
)
0.28
" Total daily levodopa intake was greater with Sinemet CR, although the bioavailability of levodopa and carbidopa from the two preparations was equivalent."( A pharmacokinetic and pharmacodynamic comparison of Sinemet CR (50/200) and standard Sinemet (25/100).
Cedarbaum, JM; Kutt, H; McDowell, FH, 1989
)
0.28
" Total daily levodopa dosage increased from 623 to 808 mg/day (+33%), a factor consistent with the lower bioavailability of the controlled-release formulation."( An open multicenter long-term treatment evaluation of Sinemet CR. Sinemet CR Multicenter Study Group.
Bush, DF; Liss, CL; Morton, A, 1989
)
0.28
" Results indicate a levodopa bioavailability of 71% for Sinemet CR, in contrast to a bioavailability of 99% for Sinemet for these subjects."( Pharmacokinetics and bioavailability of Sinemet CR: a summary of human studies.
August, TF; Bush, DF; Lasseter, KC; Musson, DG; Schwartz, S; Smith, ME; Titus, DC; Yeh, KC, 1989
)
0.28
" Levodopa bioavailability and clearance were similar between formulations."( Controlled-release carbidopa/levodopa (Sinemet 50/200 CR4): clinical and pharmacokinetic studies.
Berchou, RC; Galloway, MP; Kareti, D; Kesaree, N; LeWitt, PA; Nelson, MV; Schlick, P, 1989
)
0.28
" Although dosages of CR required for an optimal therapeutic response were not significantly higher compared with conventional levodopa, bioavailability significantly increased."( Controlled-release carbidopa/levodopa (CR) in parkinsonian patients with response fluctuations on standard levodopa treatment: clinical and pharmacokinetic observations.
Deleu, D; Ebinger, G; Jacques, M; Michotte, Y, 1989
)
0.28
"5-fold increase in daily carbidopa intake on the bioavailability of levodopa was studied in six patients with Parkinson's disease on a low chronic regimen of carbidopa-levodopa (Sinemet) at the fixed ratio of 1:10."( Increased dosage of carbidopa in parkinsonian patients on low carbidopa-levodopa regimen. Effect on levodopa bioavailability.
Baruzzi, A; Contin, M; Martinelli, P; Procaccianti, G; Riva, R, 1989
)
0.28
" The bioavailability of levodopa was significantly greater in the elderly (0."( The effect of age on the pharmacokinetics of levodopa administered alone and in the presence of carbidopa.
Everest, H; George, CF; Monks, K; Renwick, AG; Robertson, DR; Waller, DG; Wood, ND, 1989
)
0.28
"4 times larger bioavailability (AUC) on plasma L-dopa concentrations than those of L-dopa itself."( A new potential prodrug to improve the duration of L-dopa: L-3-(3-hydroxy-4-pivaloyloxyphenyl)alanine.
Hisaka, A; Ihara, M; Sawasaki, Y; Takehana, H; Tomimoto, K; Tsuchiya, Y; Yano, M, 1989
)
0.28
"The effect of doubling carbidopa intake on single dose bioavailability of L-Dopa was examined in five parkinsonian patients."( Effect of supplemental carbidopa on bioavailability of L-dopa.
Cedarbaum, JM; Dhar, AK; Kutt, H; McDowell, FH; Watkins, S, 1986
)
0.27
" As compared with Sinemet CR4, there was a greater delay in the occurrence of peak plasma levodopa concentrations, and relative bioavailability was reduced."( Controlled-release levodopa/carbidopa. III: Sinemet CR5 treatment of response fluctuations in Parkinson's disease.
Cedarbaum, JM; Hoey, M; Kutt, H; McDowell, FH, 1988
)
0.27
" In nine subjects who completed the trial, the clinical response, occurrence of dyskinesias and of nausea and vomiting, were similar with both treatments, although peak plasma levodopa concentration and levodopa bioavailability were greater on levodopa-domperidone than on levodopa-carbidopa."( Comparison of levodopa with carbidopa, and levodopa with domperidone in Parkinson's disease.
Langdon, N; Malcolm, PN; Parkes, JD, 1986
)
0.27
" However, response fluctuations continued to occur, day-to-day consistency was poor, and the bioavailability of levodopa appeared less than that of standard Sinemet."( Controlled-release levodopa/carbidopa. I. Sinemet CR3 treatment of response fluctuations in Parkinson's disease.
Breck, L; Cedarbaum, JM; Kutt, H; McDowell, FH, 1987
)
0.27
" Using this value for clearance, it is estimated that carbidopa doubles the bioavailability of orally administered levodopa."( The effect of carbidopa on the pharmacokinetics of intravenously administered levodopa: the mechanism of action in the treatment of parkinsonism.
Anderson, JL; Nutt, JG; Woodward, WR, 1985
)
0.27
" 163, administered as their DL-racemic mixtures, produced increases in the t1/2 and bioavailability of co-administered L-DOPA comparable to that produced by a 10-fold larger dose of carbidopa administered as the active L-enantiomer; increasing the dose of MDL 72."( A comparison of the effects of reversible and irreversible inhibitors of aromatic L-amino acid decarboxylase on the half-life and other pharmacokinetic parameters of oral L-3,4-dihydroxyphenylalanine.
Haegele, KD; Huebert, ND; Palfreyman, MG,
)
0.13
" The oral absorption of carbidopa was almost complete and the absolute bioavailability (F) was 88%."( The pharmacokinetic profile of carbidopa in dogs.
Menargues, A; Obach, R; Vallès, JM, 1984
)
0.27
" The ratio of 5-HTP to carbidopa influenced the systemic bioavailability of single dose administered 5-HTP indicating dose dependent absorption kinetics."( Plasma accumulation of metabolism of orally administered single dose L-5-hydroxytryptophan in man.
Jensen, TS; Magnussen, I; Rand, JH; Van Woert, MH, 1981
)
0.26
" The bioavailability of 5-HTP after oral administration in combination with carbidopa was calculated as 48% +/- 15 (mean +/- SD)."( Kinetics of l-5-hydroxytryptophan in healthy subjects.
Gerritsen, TW; Meijer, BA; van Praag, HM; Westenberg, HG, 1982
)
0.26
" Carbidopa, an extracerebral inhibitor of L-aromatic amino acid decarboxylation, increased dose dependently the brain bioavailability of systemically administered 5-HTP not only by peripheral enzyme inhibition, but also by inhibition of the decarboxylase activity within the blood-brain barrier as indicated by a rise in the calculated brain/plasma 5-HTP concentration ratio."( Effects of carbidopa on the cerebral accumulation of exogenous L-5-hydroxytryptophan in mice.
Magnussen, I, 1984
)
0.27
"The bioavailability of orally administered L-5-hydroxytryptophan in steady state was investigated at four increasing multiple dose levels in five patients suffering from various myoclonic disorders."( Bioavailability and related pharmacokinetics in man of orally administered L-5-hydroxytryptophan in steady state.
Magnussen, I; Nielsen-Kudsk, F, 1980
)
0.26
"In 6-[18F]fluoro-L-dopa (Fdopa)/positron emission tomography (PET) studies, carbidopa pretreatment increases the Fdopa bioavailability to the brain and enhances the intensity of striatal PET images."( Routes of administration and effect of carbidopa pretreatment on 6-[18F]fluoro-L-dopa/PET scans in non-human primates.
Chan, GL; Dobko, T; Doudet, DJ; Hewitt, KA; Pate, BD; Ruth, TJ; Schofield, P, 1995
)
0.29
" There was a significantly higher extent and slower rate of absorption when levodopa was administered ip in a large volume of vehicle."( Pharmacokinetics of levodopa and carbidopa in rats following different routes of administration.
Bredberg, E; Lennernäs, H; Paalzow, L, 1994
)
0.29
" The relative bioavailability of levodopa in the solid preparation compared to the dispersion was in all patients 100%."( Intraduodenal infusion of a water-based levodopa dispersion for optimisation of the therapeutic effect in severe Parkinson's disease.
Aquilonius, SM; Bredberg, E; Johansson, K; Johnels, B; Nilsson, D; Nyström, C; Paalzow, L, 1993
)
0.29
" The absorption and bioavailability of CR 25/100 are minimally greater than CR 50/200."( Controlled release levodopa/carbidopa 25/100 (Sinemet CR 25/100): pharmacokinetics and clinical efficacy in untreated parkinsonian patients.
Block, GA; Cyhan, G; Gancher, ST; Hammerstad, JP; Nutt, JG; Woodward, WR, 1994
)
0.29
" The total daily levodopa intake was significantly greater with L-CR because of the reduced bioavailability of the L-CR."( Comparison of standard carbidopa-levodopa and sustained-release carbidopa-levodopa in Parkinson's disease: pharmacokinetic and quality-of-life measures.
Koller, WC; Lyons, K; McGuire, D; Pahwa, R; Robischon, M; Silverstein, P; Zwiebel, F, 1997
)
0.3
"Clinical pharmacology studies have shown that the catechol-O-methyltransferase inhibitor tolcapone increases the bioavailability area under the plasma concentration-time curve (AUC) and the plasma elimination half-life (t1/2) of levodopa."( The effect of tolcapone on levodopa pharmacokinetics is independent of levodopa/carbidopa formulation.
Aitken, J; Fotteler, B; Jorga, K; Nielsen, T; Sedek, G, 1998
)
0.3
" The absorption of the drug was shown to be rapid and concomitant food intake had only a minor effect on the relative bioavailability (10-20% reduction compared with fasting)."( Population pharmacokinetics of tolcapone in parkinsonian patients in dose finding studies.
Banken, L; Fotteler, B; Jorga, K; Snell, P; Steimer, JL, 2000
)
0.31
" It has been shown to improve the bioavailability of plasma levodopa and extend its clinical effect when used as an adjunct to standard levodopa preparations, but there is little experience of the effect of entacapone on controlled release levodopa preparations."( The catechol-O-methyltransferase (COMT) inhibitor entacapone enhances the pharmacokinetic and clinical response to Sinemet CR in Parkinson's disease.
Brooks, DJ; Gordin, A; Karlsson, M; Korpela, K; Pavese, N; Piccini, P, 2000
)
0.31
"A reliable multi-dimensional column chromatographic method employing amperometric detection using a carbon fibre microelectrode procedure was used for monitoring the plasma profiles and to evaluate the pharmacokinetics and bioavailability of levodopa (L-dopa) and carbidopa (C-dopa), after ingestion of oral formulations containing these drugs."( Bioavailability studies of oral dosage forms containing levodopa and carbidopa using column-switching chromatography followed by electrochemical detection.
Sagar, KA; Smyth, MR, 2000
)
0.31
" In the simulated studies, up to half of the study subjects exhibited FCM, and various levels of intrasubject variability were incorporated into the absorption rate constant."( First measured plasma concentration value as C(max); impact on the C(max) confidence interval in bioequivalence studies.
Conner, D; Jackson, A; Miller, R, 2000
)
0.31
"There are doubts wether generic medications have the same bioavailability and efficacy compared with the original drugs developed by pharmaceutical companies with research capabilities."( [Pharmacokinetic comparison of Sinemet and Grifoparkin (levodopa/carbidopa 250/25 mg) in Parkinson s disease: a single dose study].
Chaná, P; Fierro, A; Reyes-Parada, M; Sáez-Briones, P, 2003
)
0.32
" In switching patients who are receiving levodopa/carbidopa controlled-release (CR), it should be noted that the bioavailability of levodopa from levodopa/carbidopa CR is approximately 70-75% that of levodopa/carbidopa IR products, including Stalevo."( Levodopa/carbidopa/entacapone (Stalevo).
Hauser, RA, 2004
)
0.32
" This increased duration of 'on' time was concomitant with a significant increase in levodopa bioavailability (AUC)."( Entacapone improves the pharmacokinetic and therapeutic response of controlled release levodopa/carbidopa in Parkinson's patients.
Barbato, L; Bolner, A; Caraceni, T; Nordera, G; Stocchi, F, 2004
)
0.32
" In conclusion, the novel COMT inhibitor BIA 3-202 increased the bioavailability of levodopa and reduced the formation of 3-OMD when administered with standard levodopa/carbidopa."( Pharmacokinetic-pharmacodynamic interaction between BIA 3-202, a novel COMT inhibitor, and levodopa/carbidopa.
Almeida, L; Falcão, A; Loureiro, A; Machado, R; Maia, J; Silveira, P; Soares-da-Silva, P; Torrão, L; Vaz-da-Silva, M; Wright, L,
)
0.13
"Entacapone is a COMT inhibitor used in Parkinson's disease (PD) patients, as an adjunctive therapy to L-dopa in order to prolong its bioavailability and thus its clinical effect."( Delayed administration may improve entacapone effects in parkinsonian patients non-responding to the drug.
Bassi, A; Brusa, L; Fedele, E; Lunardi, G; Pasqualetti, P; Peppe, A; Pierantozzi, M; Stanzione, P; Stefani, A, 2004
)
0.32
" Entacapone increases the bioavailability and reduces the daily variation of plasma levodopa when administered with standard levodopa preparations."( Entacapone increases levodopa exposure and reduces plasma levodopa variability when used with Sinemet CR.
Gordin, A; Huupponen, R; Kultalahti, ER; Laine, K; Leinonen, M; Paija, O; Reinikainen, K,
)
0.13
" ovata husk modifies in rabbits the bioavailability and other pharmacokinetic parameters of levodopa (20 mg/kg) when administered by the oral route with carbidopa (5 mg/kg)."( Hydrosoluble fiber (Plantago ovata husk) and levodopa II: experimental study of the pharmacokinetic interaction in the presence of carbidopa.
Calle, A; Carriedo, D; Diez, MJ; Fernandez, N; Garcia, JJ; Gonzalez, A; Sahagun, A; Sierra, M, 2005
)
0.33
" By combining 5-HTP with carbidopa (CBD), increased bioavailability for brain penetration and decreased peripheral side effects would be expected, due to reduced peripheral decarboxylation of 5-HTP to 5-HT."( Pharmacology of rising oral doses of 5-hydroxytryptophan with carbidopa.
de Kam, ML; de Rijk, R; Gijsman, HJ; Hoeberechts-Lefrandt, DH; Jacobs, GE; Schoemaker, RC; Smarius, LJ; van der Post, JP; van Gerven, JM; van Pelt, J; Zitman, FG, 2008
)
0.35
"The influence of treatment duration (7 or 14 days) with Plantago ovata husk/levodopa/carbidopa in the bioavailability and other pharmacokinetic parameters of levodopa were evaluated in rabbits."( The hydrosoluble fiber Plantago ovata husk improves levodopa (with carbidopa) bioavailability after repeated administration.
Diez, MJ; Fernandez, N; Garcia, JJ; Prieto, C; Sahagun, A; Sierra, M, 2008
)
0.35
" Entacapone inhibits the metabolism of levodopa therefore increases the area under the plasma concentration-time profile of levodopa; however, it may decrease the initial absorption rate of levodopa in some patients probably due to competitive absorption."( The pharmacokinetics and pharmacodynamics of levodopa in the treatment of Parkinson's disease.
Hsu, A; Khor, SP, 2007
)
0.34
"Slow gastric emptying decreasing levodopa (LD) bioavailability contributes to motor fluctuations in Parkinson disease (PD)."( Clinical experiences with levodopa methylester (melevodopa) in patients with Parkinson disease experiencing motor fluctuations: an open-label observational study.
Antonini, A; Guidi, M; Mancini, F; Martignoni, E; Pacchetti, C; Sciarretta, M; Stocchi, F; Zangaglia, R,
)
0.13
" One time addition of EN to LD/CD showed no increase of maximum LD concentration, but repeat EN supplementation to LD/CD elevated LD bioavailability and peaks."( Entacapone.
Müller, T, 2010
)
0.36
" Levodopa/carbidopa/entacapone (LCE) provides higher bioavailability of levodopa compared with levodopa/carbidopa formulations and has been shown to be effective in PD patients with wearing-off symptoms."( Night-time bioavailability of levodopa/carbidopa/entacapone is higher compared to controlled-release levodopa/carbidopa.
Ellmén, J; Kailajärvi, M; Korpela, K; Kuoppamäki, M; Lehtinen, T; Sauramo, A; Vahteristo, M, 2010
)
0.36
"A single evening dose of LCE 200 was associated with significantly better bioavailability compared with CR-LC 200."( Night-time bioavailability of levodopa/carbidopa/entacapone is higher compared to controlled-release levodopa/carbidopa.
Ellmén, J; Kailajärvi, M; Korpela, K; Kuoppamäki, M; Lehtinen, T; Sauramo, A; Vahteristo, M, 2010
)
0.36
"The results of this study demonstrate that a single bedtime dose of LCE 200 provides higher bioavailability of levodopa compared to CR-LC 200."( Night-time bioavailability of levodopa/carbidopa/entacapone is higher compared to controlled-release levodopa/carbidopa.
Ellmén, J; Kailajärvi, M; Korpela, K; Kuoppamäki, M; Lehtinen, T; Sauramo, A; Vahteristo, M, 2010
)
0.36
" Levodopa bioavailability was higher on day 2 due to the COMT inhibition."( Inhibition of catechol-O-methyltransferase modifies acute homocysteine rise during repeated levodopa application in patients with Parkinson's disease.
Muhlack, S; Müller, T; Woitalla, D, 2011
)
0.37
"To compare bioavailability and pharmacokinetics of single doses of 3 different levodopa formulations given orally in healthy volunteers."( Pharmacokinetics of levodopa/carbidopa microtablets versus levodopa/benserazide and levodopa/carbidopa in healthy volunteers.
Aquilonius, SM; Bäckström, T; Ehrnebo, M; Gomes-Trolin, C; Lewander, T; Nyholm, D; Nyström, C; Panagiotidis, G,
)
0.13
" The low bioavailability of L-Dopa may cause a wide variation in clinical response between patients."( Protective effects of L-dopa and carbidopa combined treatments on human catecholaminergic cells.
Colamartino, M; Cornetta, T; Cozzi, R; Leone, S; Meneghini, C; Padua, L; Testa, A, 2012
)
0.38
" The stronger in vivo effect of (+)-catechin on L-DOPA methylation compared to the other dietary compounds is due to its better bioavailability in vivo."( Beneficial effects of natural phenolics on levodopa methylation and oxidative neurodegeneration.
Fukui, M; Kang, KS; Wen, Y; Yamabe, N; Zhu, BT, 2013
)
0.39
"LCIG administration results in faster absorption, comparable levodopa bioavailability and significantly reduced intra-subject variability in levodopa concentrations relative to LC-oral administration."( Population pharmacokinetics of levodopa in subjects with advanced Parkinson's disease: levodopa-carbidopa intestinal gel infusion vs. oral tablets.
Dutta, S; Othman, AA, 2014
)
0.4
" Maximum concentration, time to maximum level and bioavailability of levodopa did not differ between all conditions each with 200 mg levodopa application as a whole."( Fewer fluctuations, higher maximum concentration and better motor response of levodopa with catechol-O-methyltransferase inhibition.
Herrmann, L; Muhlack, S; Müller, T; Salmen, S, 2014
)
0.4
"L-DOPA has long been the 'gold standard' treatment for Parkinson's disease (PD), but suffers from poor oral bioavailability and rapid pharmacokinetic elimination."( IPX066 , a mixed immediate/sustained-release levodopa preparation for Parkinson's disease.
Ondo, W, 2014
)
0.4
" Bioavailability of LD from ER CD-LD was 83."( Comparison of the pharmacokinetics of an oral extended-release capsule formulation of carbidopa-levodopa (IPX066) with immediate-release carbidopa-levodopa (Sinemet(®)), sustained-release carbidopa-levodopa (Sinemet(®) CR), and carbidopa-levodopa-entacapo
Gupta, S; Hsu, A; Modi, NB; Yao, HM, 2015
)
0.42
" Levodopa bioavailability was 99 % for LCIG relative to LC-oral."( Jejunal Infusion of levodopa-carbidopa intestinal gel versus oral administration of levodopa-carbidopa tablets in japanese subjects with advanced Parkinson's disease: pharmacokinetics and pilot efficacy and safety.
Benesh, J; Chatamra, K; Dutta, S; Mohamed, ME; Nagai, M; Othman, AA; Yanagawa, M, 2015
)
0.42
" Adjusting for 70 % bioavailability relative to immediate-release (IR) carbidopa-levodopa, the median dosages correspond to ~500 and ~1015 mg/day of IR levodopa in early and advanced PD, respectively."( Long-Term Treatment with Extended-Release Carbidopa-Levodopa (IPX066) in Early and Advanced Parkinson's Disease: A 9-Month Open-Label Extension Trial.
Dzyak, L; Gupta, S; Hsu, A; Kell, S; Khanna, S; Nausieda, P; Rudzinska, M; Silver, DE; Spiegel, J; Tsurkalenko, ES; Waters, CH, 2015
)
0.42
"Our results show an impaired LD bioavailability from Mucuna preparation, as expected by the lacking aromatic amino acid decarboxylase inhibitors coadministration, which might explain the suggested lower dyskinetic potential of Mucuna compared with standard LD formulations."( Mucuna pruriens in Parkinson Disease: A Kinetic-Dynamic Comparison With Levodopa Standard Formulations.
Contin, M; Guarino, M; Iannello, C; Lopane, G; Passini, A; Poli, F,
)
0.13
" These results indicate that soy partly increased the bioavailability of levodopa and suppressed levodopa degradation through COMT."( Effects of soybean ingestion on pharmacokinetics of levodopa and motor symptoms of Parkinson's disease--In relation to the effects of Mucuna pruriens.
Ito, H; Koh, J; Kondo, T; Nagashima, Y; Sakata, M, 2016
)
0.43
" The water solubility and improved bioavailability may help reduce medication frequency associated with l-DOPA treatment of PD."( DopAmide: Novel, Water-Soluble, Slow-Release l-dihydroxyphenylalanine (l-DOPA) Precursor Moderates l-DOPA Conversion to Dopamine and Generates a Sustained Level of Dopamine at Dopaminergic Neurons.
Atlas, D, 2016
)
0.43
" Efforts have been made recently to improve levodopa bioavailability either by developing more effective oral formulations or by innovating routes of administration (intestinal infusion, transcutaneous or inhaled levodopa)."( Novel Levodopa Formulations for Parkinson's Disease.
Fox, SH; Freitas, ME; Ruiz-Lopez, M, 2016
)
0.43
"Opicapone, as once-daily oral evening regimen and/or 1 h apart from levodopa therapy, increases the bioavailability of levodopa associated with its pronounced, long-lasting and sustained catechol-O-methyltransferase inhibition."( Effect of opicapone multiple-dose regimens on levodopa pharmacokinetics.
Almeida, L; Bonifácio, MJ; Falcão, A; Fauchoux, N; Loureiro, AI; Nunes, T; Pinto, R; Rocha, JF; Santos, A; Sicard, É; Soares-da-Silva, P, 2017
)
0.46
"Levodopa bioavailability is enhanced by adding entacapone."( Levodopa dose maintenance or reduction in patients with Parkinson's disease transitioning to levodopa/carbidopa/entacapone.
Baik, JS; Cho, JW; Kim, Y; Koh, SB; Lee, JY; Lee, PH; Park, J; Sohn, YH; Youn, J,
)
0.13
" At the same time, measurements of LD and dopamine of mice administered with this formulation showed enhanced bioavailability of LD."( Improved Bioavailability of Levodopa Using Floatable Spray-Coated Microcapsules for the Management of Parkinson's Disease.
Baek, JS; Ho, HK; Lim, KL; Loo, SCJ; Pang, YY; Tan, EY; Tee, JK, 2018
)
0.48
"Both the ODE and the SDE models estimated bioavailability to be approximately 75%."( Investigating Stochastic Differential Equations Modelling for Levodopa Infusion in Patients with Parkinson's Disease.
Alam, M; Rönnegård, L; Saqlain, M; Westin, J, 2020
)
0.56
" The final model was a one compartment model with a high fixed absorption rate constant, and a first order elimination, with estimated apparent clearances (CL/F), of 27."( Population pharmacokinetics of levodopa gel infusion in Parkinson's disease: effects of entacapone infusion and genetic polymorphism.
Nielsen, EI; Nyholm, D; Senek, M, 2020
)
0.56
"The presence of carbidopa increases the bioavailability of levodopa within the eye, enhancing its antimyopic effects, with topical application showing the greatest efficacy."( Coadministration With Carbidopa Enhances the Antimyopic Effects of Levodopa in Chickens.
Ashby, R; Karouta, C; Kelly, T; Morgan, I; Thomson, K, 2021
)
0.62
" Levodopa bioavailability and its maximum concentration were higher with opicapone."( Effects of One-Day Application of Levodopa/Carbidopa/Entacapone versus Levodopa/Carbidopa/Opicapone in Parkinson's Disease Patients.
Müller, T; Schlegel, E; Thiede, HM; Zingler, S, 2022
)
0.72
"AsA can mitigate the degradation of carbidopa induced by MgO and may contribute to improving the bioavailability of levodopa in patients with PD."( Ascorbic acid can alleviate the degradation of levodopa and carbidopa induced by magnesium oxide.
Kubo, M; Miyaue, N; Nagai, M, 2022
)
0.72
"Combining opicapone 50 mg with a 100 mg lower daily dose of levodopa provides higher levodopa bioavailability with avoidance of trough levels."( Effect of Opicapone on Levodopa Pharmacokinetics in Patients with Fluctuating Parkinson's Disease.
Antonini, A; Ferreira, JJ; Guimarães, B; Moreira, J; Poewe, W; Rascol, O; Rocha, JF; Soares-da-Silva, P; Stocchi, F, 2022
)
0.72
" To show that generic drugs are equivalent to the originator drug, regulations usually refer to the bioavailability of active ingredients, which is influenced by the selected dosage form and the chosen excipients."( Different dissolution conditions affect stability and dissolution profiles of bioequivalent levodopa-containing oral dosage forms.
Langer, K; Rose, O; Weitzel, J; Wünsch, A, 2022
)
0.72
" The implementation of drug delivery systems allows to bypass problems related to irregular and often unpredictable intestinal absorption of oral levodopa, which significantly affects its bioavailability and contributes to the development and persistence of motor complications."( Current and novel infusion therapies for patients with Parkinson's disease.
Antonini, A; D'Onofrio, V; Guerra, A, 2023
)
0.91

Dosage Studied

Levodopa/carbidopa intestinal gel is an aqueous gel that can be delivered to the jejunum via a percutaneous gastrojejunostomy tube. PRL increase after benserazide was compared with PRL response after carbidopa at the same dosage in untreated parkinsonian patients.

ExcerptRelevanceReference
" We proposed a systematic classification scheme using FDA-approved drug labeling to assess the DILI potential of drugs, which yielded a benchmark dataset with 287 drugs representing a wide range of therapeutic categories and daily dosage amounts."( FDA-approved drug labeling for the study of drug-induced liver injury.
Chen, M; Fang, H; Liu, Z; Shi, Q; Tong, W; Vijay, V, 2011
)
0.37
" In 5 previously untreated patients, (-)-deprenyl alone gave no benefit, but when it was used with levodopa and carbidopa a mean dosage reduction of 200 mg levodopa daily was possible."( Deprenyl in Parkinson's disease.
Elsworth, JD; Kohout, LJ; Lees, AJ; Sandler, M; Shaw, KM; Stern, GM; Youdim, MB, 1977
)
0.26
" The dosage of nomifensine started at 50 mg, was increased to 150 mg daily, and other medication was continued unchanged."( Nomifensine in Parkinson's disease.
Bedard, P; Marsden, CD; Parkes, JD, 1977
)
0.26
" By the use of the combination preparation, the daily dosage of levodopa could be reduced by 77%."( A comparative clinical investigation of the therapeutic effect of levodopa alone and in combination with a decarboxylase inhibitor (carbidopa) in cases of Parkinson's disease.
Dorner, A; Wajsbort, E; Wajsbort, J, 1978
)
0.26
" With both drugs, Madopar or Sinemet, an optimum therapeutic result was obtained with relatively small doses of L-dopa (the reduction in L-dopa dosage amounting to about 80%)."( [The combined treatment of Parkinson's disease with L-dopa plus decarboxylase inhibitors (carbidopa, benserazide) (author's transl)].
Birkmayer, W; Mentasti, M; Podiwinsky, F; Riederer, P, 1979
)
0.26
" The treatment periods were 12 weeks; similar dosage schedules were used, with doses that induced equal levels of plasma levodopa in both combinations."( Levodopa with benserazide or carbidopa in Parkinson disease.
Mölsä, P; Rinne, UK, 1979
)
0.26
" At both low (50 mg daily) and high (150 mg daily) dosage there was a similar but not identical profile of response."( Comparison between lergotrile and bromocriptine in parkinsonism.
Bern, SM; Calne, DB; McInturff, D; Pfeiffer, RF; Teychenne, PF, 1978
)
0.26
" The combined administration of monoamine oxidase inhibitors with indirectly acting sympathomimetic amines will increase arterial pressure, but must be considered quite risky in light of inherently poor ability to regulate dose-response relationships and prior clinical experience with excessive arterial pressure elevation."( Effect of selected drugs on arterial pressure response to upright posture.
McNay, JL, 1976
)
0.26
" The study was designed as paired series of growth hormone stimulation tests in which the effect of L-dopa alone, in different dosage schedules, was compared with the same dose level of L-dopa plus carbidopa, When L-dopa was given in full dose (125-500 mg), there was no significant difference in the serum GH concentrations at any time of sampling."( The effect of L-dopa with and without decarboxylase inhibitor on growth hormone secretion in children with short stature.
Aarskog, D; Fevang, FO; Stoa, RF; Thorsen, T, 1977
)
0.26
" Generally the dosage range was up to a maximum of one tablet three times daily."( [Treatment of Parkinson's disease with the combination drug L-carbidopa/L-dopa. Report on a 2 years study].
Hayek, J, 1977
)
0.26
"A biphasic dose-response pattern is generated by the isoquinoline, 3-carboxysalsolinol, in analgesia tests conducted in mice."( Analgesic effects of 3-carboxysalsolinol alone and in combination with morphine.
Blum, K; Hirst, M; Marshall, A, 1977
)
0.26
" The dosage level was sufficient to produce undesirable side-effects (diarrhea and vomiting)."( The effect of L-5-hydroxytryptophan on self-mutilatin in Lesch-Nyhan disease: a negative report.
Anderson, LT; Dancis, J; Herrmann, L, 1976
)
0.26
" Combination therapy resulted in a reduction in L-dopa dosage to 1/3 of the amount required during the baseline."( Alpha methyldopahydrazine as an adjunct to levodopa therapy in Parkinson's disease.
Jaatoul, N; Kertesz, A; McInnis, W; Paty, DW, 1975
)
0.25
" Second, dose-response relationships were established for the amphetamine enantiomers."( Differences between (+)- and (-)-amphetamine in effects on locomotor activity and L-dopa potentiating action in mice.
Strömberg, U; Svensson, TH, 1975
)
0.25
" Clinical pharmacological studies disclosed that a 1 : 10 ratio of MK-486 to L-dopa in dosage was preferable."( L-dopa therapy combined with peripheral decarboxylase inhibitor (MK-486) in Parkinsonism.
Kishikawa, H; Ohmoto, T, 1975
)
0.25
" Dose-response curves for apomorphine- and L-dopa-induced circling rates shifted to the left as the duration between the time of the 6-hydroxydopamine injection and the time of testing increased from 2 to 30 days."( Supersensitivity to dopamine agonists following unilateral, 6-hydroxydopamine-induced striatal lesions in mice.
Moore, KE; Thornburg, JE, 1975
)
0.25
" Patients were allocated at random to treatment with either levodopa + benserazide ratio 4:1 (Madopar) or levodopa + carbidopa ratio 10:1 (Sinemet) using dosage schedules recommended by the manufacturers which they had to adhere to for 6 months."( Parkinson's disease treated with Sinemet or Madopar. A controlled multicenter trial.
Birket-Smith, E; Dupont, E; Hansen, E; Mikkelsen, B; Pakkenberg, H; Presthus, J; Rautakorpi, I; Riman, E; Rinne, UK, 1976
)
0.26
" Abnormal movements accompany an overdose but regress when the dosage is decreased."( [Dopa-sensitive dystonia].
Aicardi, J; Goutières, F; Rondot, P; Ziegler, M, 1992
)
0.28
" Actual total daily levodopa dosage in patients treated with Sinemet CR was increased by 33%; however, the plasma level of this dosage is calculated to be similar to that of the previous dosage of Sinemet-STD (bio-availability of Sinemet CR is 71%)."( Clinical efficacy of Sinemet CR 50/200 versus Sinemet 25/100 in patients with fluctuating Parkinson's disease. An open, and a double-blind, double-dummy, multicenter treatment evaluation. The Dutch Sinemet CR Study Group.
Horstink, MW; Jansen, EN; Roos, RA; Wolters, EC, 1992
)
0.28
" dosage schedule."( Comparative multiple-dose pharmacokinetics of controlled-release levodopa products.
Collin, C; Eckernäs, SA; Grahnén, A; Ling-Andersson, A; Nilsson, M; Tiger, G, 1992
)
0.28
" Following the initial period of therapy, emerging difficulties require a reassessment of therapeutic approaches, such as dosage adjustment or introduction of a dopamine agonist."( Optimization of levodopa therapy.
Pfeiffer, R, 1992
)
0.28
" Bioavailability of Sinemet CR levodopa is less than that of standard Sinemet, so a slightly higher total daily levodopa dose is required to achieve a comparable effect; but because Sinemet CR is absorbed much more slowly than is the standard preparation, dosing frequency can be reduced by up to half."( The use of Sinemet CR in the management of mild to moderate Parkinson's disease.
Rodnitzky, RL, 1992
)
0.28
" Thirteen such patients, of mean age 78 y, without overt fluctuations in motor control in temporal relation to dosing with a levodopa/decarboxylase inhibitor combination, were studied."( Effect of duration of levodopa/decarboxylase inhibitor therapy on the pharmacokinetic handling of levodopa in elderly patients with idiopathic Parkinson's disease.
Bowes, SG; Deshmukh, AA; Dobbs, RJ; Dobbs, SM; Leeman, AL; Nicholson, PW; O'Neill, CJ, 1991
)
0.28
" It is suggested that chlormethiazole is safe to use as a hypnotic at this dosage in this group of patients with Parkinson's disease, while temazepam did not appear to be effective as a hypnotic at this dosage."( A single-dose study of the pharmacodynamic effects of chlormethiazole, temazepam and placebo in elderly parkinsonian patients.
Ashwood, TJ; Bateman, DN; Tulloch, JA; Woodhouse, KW, 1991
)
0.28
" The average daily levodopa dosing frequency did not change significantly during long-term treatment."( Long-term evaluation of Sinemet CR in parkinsonian patients with motor fluctuations.
Hutton, JT; Morris, JL, 1991
)
0.28
"Almost all patients with idiopathic Parkinson's disease respond to levodopa and progress steadily, requiring an increased overall dosage with time."( Sinemet (CR4): an open-label study in moderately severe Parkinson's disease.
Fritz, VU; Ming, A; Temlett, JA, 1991
)
0.28
" The IR dosage forms were found to disperse soon after administration and to empty rapidly from both fasted and fed stomachs."( Characterisation of the in vivo behaviour of a controlled-release formulation of levodopa (Sinemet CR).
Davis, SS; Evans, DF; Hardy, JG; Melia, CD; Short, AH; Sparrow, RA; Wilding, IR; Yeh, KC, 1991
)
0.28
" Overall 'Sinemet CR4' allowed a longer dosage interval and provided more stable control of disease manifestations than conventional 'Sinemet'."( Controlled release levodopa/carbidopa (Sinemet CR4) in Parkinson's disease--an open evaluation of efficacy and safety.
Bulling, MT; Burns, RJ; Wing, LM, 1991
)
0.28
" The dosage of agonist was gradually increased over 12 weeks to a maximum tolerated level of up to 60 mg/day, and that of Sinemet was reduced concurrently."( Sustained-release (+)-PHNO [MK-458 (HPMC)] in the treatment of Parkinson's disease: evidence for tolerance to a selective D2-receptor agonist administered as a long-acting formulation.
Cedarbaum, JM; Clark, M; Green-Parsons, A; Toy, LH, 1990
)
0.28
" However significantly less frequent dosing was necessary with Sinemet CR."( Sinemet CR in Parkinson's disease.
Glaeske, CS; Hofman, R; Pfeiffer, RF; Wilken, KE, 1991
)
0.28
" We carried out an oral levodopa dose-response study in two rhesus monkeys whose left hemiparkinsonism was induced by intracarotid administration of MPTP."( Oral levodopa dose-response study in MPTP-induced hemiparkinsonian monkeys: assessment with a new rating scale for monkey parkinsonism.
Gash, DM; Kim, MH; Kurlan, R, 1991
)
0.28
" The methods have been utilized to evaluate the pharmacokinetics and bioavailability of oral dosage forms containing levodopa and carbidopa."( Simultaneous high-performance liquid chromatographic analysis of carbidopa, levodopa and 3-O-methyldopa in plasma and carbidopa, levodopa and dopamine in urine using electrochemical detection.
August, TF; Bayne, WF; Eisenhandler, R; Musson, DG; Titus, DC; Yeh, KC, 1990
)
0.28
" The mean BP was reduced between 60 and 180 min after dosing in the patients, whereas such a reduction was not observed in 5 patients from whom L-dopa was withheld and in controls who showed a high ratio of plasma dopamine compared to plasma L-dopa after dosing."( Hypotensive effect of long-term levodopa in patients with Parkinson's disease.
Hamaguchi, K; Iwasaki, A; Iwasaki, S; Narabayashi, Y; Takakusagi, M, 1990
)
0.28
" The degree of increase in the norepinephrine (NE) concentrations was closely correlated to the dosage of L-threo-DOPS."( Effect of a synthetic norepinephrine precursor, L-threo-3,4- dihydroxyphenylserine on the total norepinephrine concentration in the cerebrospinal fluid of parkinsonian patients.
Abe, T; Nozaki, Y; Takahashi, J; Takahashi, S; Tohgi, H; Ueno, M, 1990
)
0.28
" Serum prolactin concentration increased in all subjects after L5HTP/C in comparison to placebo, mean (SD) prolactin (ng/ml) at 8 h after dosing was 19."( Effect of repeated doses of L-5-hydroxytryptophan and carbidopa on prolactin and aldosterone secretion in man.
Clementi, RA; Ferguson, RK; Rotmensch, HH; Swanson, BN; Vlasses, PH, 1989
)
0.28
" Its administration with levodopa, as initial therapy, allows for use of lower dosage and less side-effects of the latter agent."( Selegiline in the treatment of Parkinson's disease--long term experience.
Elizan, TS; Moros, D; Yahr, MD, 1989
)
0.28
" We performed a dosage ranging and placebo crossover study in six patients to evaluate the efficacy and tolerance of CV when used as an adjunct to Sinemet in patients with Parkinson's disease."( CV 205-502: safety, tolerance to, and efficacy of increasing doses in patients with Parkinson's disease in a double-blind, placebo crossover study.
Gauger, LL; Olanow, CW; Werner, EG, 1989
)
0.28
" Twelve patients in each treatment group were pair-matched for age, PD duration, duration of levodopa therapy, dosage of Sinemet, PD disability, and side-effect prevalence at study entry."( Development and progression of motor fluctuations and side effects in Parkinson's disease: comparison of Sinemet CR versus carbidopa/levodopa.
Gilley, DW; Goetz, CG; Klawans, HL; Tanner, CM, 1989
)
0.28
" The daily dosage after 1 year, 766 mg +/- 250 mg, was increased by 23% compared with standard Sinemet dosage, without additional secondary effects."( Effect of controlled-release carbidopa/levodopa on motor performance in advanced Parkinson's disease.
Aymard, N; Rondot, P; Teinturier, A; Ziegler, M, 1989
)
0.28
" The optimal therapeutic dosage of Sinemet CR was equal to that of Madopar HBS but 12% higher than that of standard Madopar."( Treatment of early Parkinson's disease with controlled-release levodopa preparations.
Rinne, JO; Rinne, UK, 1989
)
0.28
" The mean daily dosage of levodopa was 662."( Sinemet CR in the treatment of patients with Parkinson's disease already on long-term treatment with levodopa.
Aarli, JA; Gilhus, NE, 1989
)
0.28
" For optimal results, a higher dosage is needed (mean = 33%), but the number of doses per day can be reduced (mean = 30%)."( Experiences with Sinemet CR in the Paracelsus-Elena-Klinik.
Gerdes, U; Haagen, K; Ulm, G, 1989
)
0.28
" Daily "on" time, dyskinesia time, disability score, levodopa dosage requirement, and dosing frequency on Sinemet CR were compared with baseline values on standard Sinemet therapy."( Long-term clinical efficacy of Sinemet CR in patients with Parkinson's disease.
Dickins, QS; Dobson, J; Rodnitzky, RL, 1989
)
0.28
" Although the total number of tablets and doses per day of CR-4 was reduced during the C/S period, total levodopa dosage per day was not significantly changed from either of the previous periods."( Controlled-release carbidopa-levodopa (Sinemet) in combination with standard Sinemet in advanced Parkinson's disease.
Mark, MH; Sage, JI,
)
0.13
"Many different formulation techniques are available for designing controlled-release dosage forms."( Pharmaceutical design and development of a Sinemet controlled-release formulation.
Dempski, RE; Oberholtzer, ER; Scholtz, EC; Yeh, KC, 1989
)
0.28
" These patients required a higher total daily dosage of Sinemet CR than of Sinemet for control of parkinsonian symptoms, but less frequent dosing was required during chronic therapy."( Pharmacokinetics and bioavailability of Sinemet CR: a summary of human studies.
August, TF; Bush, DF; Lasseter, KC; Musson, DG; Schwartz, S; Smith, ME; Titus, DC; Yeh, KC, 1989
)
0.28
" In 19 parkinsonians with prominent dose-by-dose fluctuations, double-blind crossover trials comparing 8-week regimens of standard carbidopa/levodopa (25/100) to Sinemet CR (50/200) showed comparable clinical outcomes, with mean daily dosing for optimal control reduced from 10."( Controlled-release carbidopa/levodopa (Sinemet 50/200 CR4): clinical and pharmacokinetic studies.
Berchou, RC; Galloway, MP; Kareti, D; Kesaree, N; LeWitt, PA; Nelson, MV; Schlick, P, 1989
)
0.28
" The standard dosage forms were found to disperse soon after administration and to empty rapidly from both the fasting and the "fed" stomach."( Gastrointestinal transit of Sinemet CR in healthy volunteers.
Davis, SS; Evans, DF; Hardy, JG; Melia, CD; Short, AH; Sparrow, RA; Wilding, IR, 1989
)
0.28
" Daily dosing frequency was 33% less with Sinemet CR, while daily intake of levodopa required was increased by 25%."( Multicenter controlled study of Sinemet CR vs Sinemet (25/100) in advanced Parkinson's disease.
Bush, DF; Hutton, JT; Liss, CL; Morris, JL; Reines, S; Smith, ME, 1989
)
0.28
" With continuous levodopa treatment, however, the threshold for dyskinesias begins to rise and the dose-response relation shifts to the right; clinically, the severity of both dyskinesias and on-off fluctuations tends to diminish."( Rationale for continuous dopaminomimetic therapy of Parkinson's disease.
Baronti, F; Chase, TN; Fabbrini, G; Heuser, IJ; Juncos, JL; Mouradian, MM, 1989
)
0.28
" Total levodopa dosage was not significantly changed over the year."( Long-term efficacy of controlled-release carbidopa/levodopa in patients with advanced Parkinson's disease.
Mark, MH; Sage, JI,
)
0.13
" Memory scores were correlated with age, sex, education, marital status, length of illness, age at onset of illness, dosage and time on medication, functional status, and the major symptoms of parkinsonism."( Correlates of memory in Parkinson's disease.
Reynolds, CM; Riklan, M; Stellar, S, 1989
)
0.28
" The effects of L-Dopa dosage adjustments after hospitalization were particularly considered."( [The problems of L-dopa therapy in the course of Parkinson syndrome].
Emskötter, T; Heidenreich, C; Lachenmayer, L, 1989
)
0.28
" Only in 11% of cases, an augmentation of the dopa medication was found to be effective in improving the clinical syndrome, whereas in 43%, a substantial reduction of dosage was necessary and resulted in a marked improvement of the clinical syndrome."( [The problems of L-dopa therapy in the course of Parkinson syndrome].
Emskötter, T; Heidenreich, C; Lachenmayer, L, 1989
)
0.28
" The total daily dose of L-DOPA was not significantly changed, but dosing frequency was almost halved."( An open trial of controlled release carbidopa/L-dopa (sinemet CR) for the treatment of mild-to-moderate Parkinson's disease.
Friedman, JH; Lannon, MC, 1989
)
0.28
" Mean daily Sinemet dosage decreases were 17% in the deprenyl group and 7% in the placebo group."( Deprenyl in the treatment of symptom fluctuations in advanced Parkinson's disease.
Ahlskog, JE; Duvoisin, RC; Foo, SH; Golbe, LI; Gopinathan, G; Lieberman, AN; Muenter, MD; Neophytides, AN, 1988
)
0.27
" Reduced dosage frequency and significant motor improvement with reduced fluctuation occurred and were maintained with CR4-Sinemet compared with baseline on Sinemet."( Controlled-release carbidopa/levodopa (CR4-Sinemet) in Parkinson's disease patients with and without motor fluctuations.
Carroll, VS; Carvey, PM; Gilley, D; Goetz, CG; Klawans, HL; Shannon, KM; Tanner, CM, 1988
)
0.27
") age 80(5) years, showed that nocturnal dosing with levodopa produced a clinically significant improvement in sleep both as assessed subjectively and by measurement of number of spontaneous moves in bed."( Parkinson's disease in the elderly: response to and optimal spacing of night time dosing with levodopa.
Denham, MJ; Deshmukh, AA; Dobbs, RJ; Dobbs, SM; Leeman, AL; Nicholson, PW; O'Neill, CJ; Royston, JP, 1987
)
0.27
" Daily dosage frequency was significantly reduced with SINEMET CR compared with SINEMET 25/100, while the daily amount of levodopa required with SINEMET CR was significantly greater."( Treatment of chronic Parkinson's disease with controlled-release carbidopa/levodopa.
Elias, JW; Hutton, JT; Imke, SC; Morris, JL; Román, GC, 1988
)
0.27
" The method has been adopted official first action for determination of the active ingredients in levodopa tablets and capsules and in levodopa-carbidopa tablets and for content uniformity testing in the combination dosage form."( Liquid chromatographic determination of levodopa and levodopa-carbidopa in solid dosage forms: collaborative study.
Ting, S,
)
0.13
" The dosage of L-dopa infusion ranged between 360-1,250 mg for 12 hours."( Problems in daily motor performances in Parkinson's disease: the continuous dopaminergic stimulation.
Agnoli, A; Brughitta, G; Ruggieri, S; Stocchi, F, 1986
)
0.27
"In five patients with parkinsonism, the optimal dosage of a controlled-release levodopa/carbidopa preparation (CR-3) was three times higher than the dosage of Sinemet and produced higher plasma levodopa concentrations, but did not reduce the fluctuations in plasma levodopa or clinical response."( Clinical and biochemical studies with controlled-release levodopa/carbidopa.
Carter, JH; Nutt, JG; Woodward, WR, 1986
)
0.27
" In the sixth year, it appeared necessary to increase the dosage in the first three groups."( Low-dosage treatment in de novo patients with Parkinson's disease: a prospective study.
van der Drift, JH, 1987
)
0.27
" The dosage of drug was titrated at each visit to give minimum risk with acceptable benefit."( Patient benefits of l-dopa and a decarboxylase inhibitor in the treatment of Parkinson's disease in elderly patients.
Admani, AK; Cordingley, GJ; Harris, RI; Verma, S, 1985
)
0.27
" We describe five patients in whom an apparent psychologic effect from levodopa prompted dosage escalation to the point of toxicity."( Sinemet "abusers".
Nausieda, PA, 1985
)
0.27
" In some subjects it is difficult to establish a clear relation between levodopa dosage and timing and the resultant clinical effects."( Complicated response fluctuations in Parkinson's disease: response to intravenous infusion of levodopa.
Marsden, CD; Parkes, JD; Quinn, N, 1982
)
0.26
" We suggest that the analysis of the blink reflex after a single oral levodopa-carbidopa dosage could provide an objective and quantifiable method for the detection of individuals at risk for Huntington's disease."( Early detection of Huntington's disease. Blink reflex and levodopa load in presymptomatic and incipient subjects.
Esteban, A; Giménez-Roldán, S; Mateo, D, 1981
)
0.26
" The observed duration of action and dose-response properties of carbidopa suggested that current empirically based dose schedules are optimal and supported the concept that decarboxylase inhibitors enhance the clinical effect of L-dopa largely by reducing the extent of first-pass metabolism rather than through an action on the decarboxylase enzyme in cerebral capillaries."( L-dopa decarboxylation in chronically treated patients.
Calne, DB; Kopin, IJ; Trombley, IK; Ward, CD, 1984
)
0.27
" As the reason for the weak effectiveness of alpha-methyldopa on the incidence of AIHA, it might be considered that the dosage employed was not sufficiently high enough and/or it may be due to the species difference between man and animals."( Influence of carbidopa, an aromatic amino acid decarboxylase inhibitor, on the development of autoimmune hemolytic anemia in NZB mice.
Kemi, M; Kondo, M; Maki, E; Tanabe, K, 1983
)
0.27
" The finding of a direct proportionality between the size of the oral dose level of L-5-hydroxytryptophan and the corresponding areas under the plasma concentration curves within a dosage interval at steady state strongly indicates dose independent, linear pharmacokinetics of the compound."( Bioavailability and related pharmacokinetics in man of orally administered L-5-hydroxytryptophan in steady state.
Magnussen, I; Nielsen-Kudsk, F, 1980
)
0.26
" The relation of complications to dosage is now better understood, and the ratio of dopa-decarboxylase inhibitor to levodopa inhibitor to levodopa of 1:4 is better than the previous 1:10."( Sinemet and the treatment of Parkinsonism.
Boshes, B, 1981
)
0.26
" PRL increase after benserazide was compared with PRL response after carbidopa at the same dosage in untreated parkinsonian patients."( Prolactin response to acute administration of different L-dopa plus decarboxylase inhibitors in Parkinson's disease.
Agnoli, A; Baldassarre, M; D'Urso, R; De Giorgio, G; Falaschi, P; Rocco, A; Ruggieri, S, 1982
)
0.26
" Because most patients required lower dosage after the holiday, dyskinesias were no longer present."( Drug holiday and management of Parkinson disease.
Klawans, HL; Koller, WC; Nausieda, PA; Perlik, S; Weiner, WJ, 1980
)
0.26
" The use of minimum dosage has therefore been recommended."( Alternate day levodopa therapy in parkinsonism.
Koller, WC, 1982
)
0.26
" Patients were maintained on a stable, therapeutically optimal dosage and schedule of levadopa-carbidopa (Sinemet) throughout the study."( Parkinson's disease: Cogentin with Sinemet, a better response.
Gilden, ER; Hansch, EC; Hirsch, SB; Potvin, AR; Potvin, JH; Syndulko, K; Tourtellotte, WW, 1982
)
0.26
" In the present study, we investigated the effect of increased dosage and duration of levodopa on amblyopes' visual functions."( Visual acuities and scotomas after 3 weeks' levodopa administration in adult amblyopia.
Gottlob, I; Reinecke, RD; Wizov, SS, 1995
)
0.29
" However, increasing the dosage and the duration of levodopa did not enhance the effect in adults."( Visual acuities and scotomas after 3 weeks' levodopa administration in adult amblyopia.
Gottlob, I; Reinecke, RD; Wizov, SS, 1995
)
0.29
" Levodopa-carbidopa in low dosage adequately controlled symptoms in most patients and delayed the appearance of dyskinesia and end of dose failure for about two years longer than conventional doses."( The Sydney Multicentre Study of Parkinson's disease: a randomised, prospective five year study comparing low dose bromocriptine with low dose levodopa-carbidopa.
Broe, GA; Hely, MA; Margrie, S; Morris, JG; O'Sullivan, DJ; Rail, D; Reid, WG; Williamson, PM, 1994
)
0.29
" The effect of levodopa in the two dosing regimens was estimated optico-electronically every 15 min and was also evaluated from videorecordings every 30 min and plasma levels of levodopa was regularly measured."( Intraduodenal infusion of a water-based levodopa dispersion for optimisation of the therapeutic effect in severe Parkinson's disease.
Aquilonius, SM; Bredberg, E; Johansson, K; Johnels, B; Nilsson, D; Nyström, C; Paalzow, L, 1993
)
0.29
" These response fluctuations appear when intrasynaptic dopamine concentrations begin to reflect the swings in levodopa availability that attend standard dosing regimens."( Catechol-O-methyltransferase inhibitor tolcapone prolongs levodopa/carbidopa action in parkinsonian patients.
Amantea, MA; Bravi, D; Chase, TN; Cora-Locatelli, G; Mouradian, MM; Roberts, JW, 1993
)
0.29
"We characterized the clinical dose-response curves for relief of parkinsonism and production of dyskinesias as a function of plasma levodopa and 3-O-methyldopa levels in six patients with advanced Parkinson's disease (PD) and fluctuating responses to oral levodopa/carbidopa."( Suppression of dyskinesias in advanced Parkinson's disease. I. Continuous intravenous levodopa shifts dose response for production of dyskinesias but not for relief of parkinsonism in patients with advanced Parkinson's disease.
Bennett, JP; Schuh, LA, 1993
)
0.29
" All 10 patients had significantly decreased variability in levodopa levels permitting better titration of levodopa dosage to individual requirements."( Double-blind, placebo-controlled, crossover study of duodenal infusion of levodopa/carbidopa in Parkinson's disease patients with 'on-off' fluctuations.
Goetz, CG; Irwin, I; Kurth, MC; Langston, JW; Stebbins, GT; Tanner, CM; Tetrud, JW, 1993
)
0.29
" Oral LCAS allowed better titration of levodopa dosage and offered a more predictable response than LD/CD tablets."( Oral levodopa/carbidopa solution versus tablets in Parkinson's patients with severe fluctuations: a pilot study.
Irwin, I; Kurth, MC; Langston, JW; Lyness, WH; Tetrud, JW, 1993
)
0.29
" Dosage titration occurred over the 5 years of evaluations to maintain an optimal response."( Comparison of immediate-release and controlled release carbidopa/levodopa in Parkinson's disease. A multicenter 5-year study. The CR First Study Group.
Block, G; Irr, J; Liss, C; Nibbelink, D; Reines, S, 1997
)
0.3
" As a consequence, levodopa dosage might be increased and the interdose interval progressively shortened."( Clinical implications of sustained dopaminergic stimulation.
Barbato, L; Berardelli, A; Bonamartini, A; Manfredi, M; Patsalos, PN; Ruggieri, S; Stocchi, F, 1994
)
0.29
" The mean daily levodopa dosage was 569 mg for Std-L compared with 751 mg for L-CR."( Comparison of standard carbidopa-levodopa and sustained-release carbidopa-levodopa in Parkinson's disease: pharmacokinetic and quality-of-life measures.
Koller, WC; Lyons, K; McGuire, D; Pahwa, R; Robischon, M; Silverstein, P; Zwiebel, F, 1997
)
0.3
" However, no correlation was found between delta BW, delta BMI or %Fat on the one hand, and the disease severity or the total dosage of L-dopa with carbidopa on the other."( [Body fat loss in patients with Parkinson's disease].
Sakajiri, K; Takamori, M, 1997
)
0.3
" Dosing days were separated by a 7-day washout."( The effect of tolcapone on levodopa pharmacokinetics is independent of levodopa/carbidopa formulation.
Aitken, J; Fotteler, B; Jorga, K; Nielsen, T; Sedek, G, 1998
)
0.3
" Daily levodopa dosage requirements decreased significantly."( Highlights of the North American and European experiences.
Goetz, CG, 1998
)
0.3
" Since Shy-Drager syndrome is often treated with antiparkinsonian drugs, neuroleptic malignant syndrome can possibly develop after the change in dosage of catecholaminergic drugs."( [A case of impending neuroleptic malignant syndrome associated with Shy-Drager syndrome].
Egi, N; Harada, T; Kumagai, R; Kurokawa, K; Nakamura, S; Okazaki, M; Shimote, K, 1998
)
0.3
" No patient showed dose-response motor flutuations during levodopa treatment."( Drug-induced motor complications in dopa-responsive dystonia: implications for the pathogenesis of dyskinesias and motor fluctuations.
de la Fuente-Fernández, R,
)
0.13
" The present study was conducted in order to evaluate the pharmacokinetics of entacapone after multiple dosing and the pattern of COMT inhibition in erythrocytes during the first day of dosing as well as during steady state."( Pharmacokinetics of oral entacapone after frequent multiple dosing and effects on levodopa disposition.
Gordin, A; Huhtala, S; Huupponen, R; Korpela, K; Reinikainen, K; Rouru, J; Savontaus, E; Scheinin, M, 1999
)
0.3
" There were no indications of accumulation of COMT inhibition during frequent dosing of entacapone."( Pharmacokinetics of oral entacapone after frequent multiple dosing and effects on levodopa disposition.
Gordin, A; Huhtala, S; Huupponen, R; Korpela, K; Reinikainen, K; Rouru, J; Savontaus, E; Scheinin, M, 1999
)
0.3
"Even when dosed frequently, there are neither indications of accumulation of entacapone nor of its COMT inhibiting activity."( Pharmacokinetics of oral entacapone after frequent multiple dosing and effects on levodopa disposition.
Gordin, A; Huhtala, S; Huupponen, R; Korpela, K; Reinikainen, K; Rouru, J; Savontaus, E; Scheinin, M, 1999
)
0.3
"Two studies were undertaken, a single-dose study and a longitudinal dosing study."( Levodopa-carbidopa and childhood retinal disease.
Bremer, DL; Jende, DL; Leguire, LE; McGregor, ML; Nairus, TM; Rogers, GL; Walson, PD, 1998
)
0.3
"05) between change in visual acuity in the single-dose study and the longitudinal dosing study."( Levodopa-carbidopa and childhood retinal disease.
Bremer, DL; Jende, DL; Leguire, LE; McGregor, ML; Nairus, TM; Rogers, GL; Walson, PD, 1998
)
0.3
"Thirteen older amblyopic children were randomly assigned to receive or not receive part-time occlusion (3 h/day) combined with 7 weeks of oral dosing with levodopa-carbidopa (1."( Occlusion and levodopa-carbidopa treatment for childhood amblyopia.
Bremer, DL; Leguire, LE; McGregor, ML; Rogers, GL; Walson, PD, 1998
)
0.3
" Selective adenosine A(2A) receptor antagonists, such as KW-6002, may be one means of reducing the dosage of L-DOPA used in treating Parkinson's disease and are potentially a novel approach to treating the illness both as monotherapy and in combination with dopaminergic drugs."( Combined use of the adenosine A(2A) antagonist KW-6002 with L-DOPA or with selective D1 or D2 dopamine agonists increases antiparkinsonian activity but not dyskinesia in MPTP-treated monkeys.
Jackson, MJ; Jenner, P; Kanda, T; Kase, H; Kuwana, Y; Nakamura, J; Pearce, RK; Smith, LA, 2000
)
0.31
" Urine recoveries of the three analytes over one 8 h dosing interval showed that the majority of the excreted levodopa and carbidopa was recovered during the first 4 h, and there is proportionally greater excretion of the carbidopa dose than the levodopa dose."( Bioavailability studies of oral dosage forms containing levodopa and carbidopa using column-switching chromatography followed by electrochemical detection.
Sagar, KA; Smyth, MR, 2000
)
0.31
" This study was conducted in parallel with a double-blind, placebo-controlled, dose-response study of the safety and efficacy of tolcapone in combination with levodopa/carbidopa therapy."( Illness impact and adjustment to Parkinson's disease: before and after treatment with tolcapone.
Chernik, D; Dorflinger, E; Waters, C; Welsh, MD, 2000
)
0.31
" The dosing schedule was one tablet TID for 1 week, 1 1/2 tablets TID for 1 week, then two tablets TID for 6 weeks."( Carbidopa/levodopa for smoking cessation: a pilot study with negative results.
Ahlskog, JE; Croghan, GA; Croghan, IT; Hurt, RD; Moyer, TP; Offord, KP; Wolter, TD, 2000
)
0.31
"In bioequivalence studies, the first blood or plasma sample taken after dosing sometimes yields a higher assayed drug concentration than any samples drawn thereafter."( First measured plasma concentration value as C(max); impact on the C(max) confidence interval in bioequivalence studies.
Conner, D; Jackson, A; Miller, R, 2000
)
0.31
"To develop stable liquid dosage forms of levodopa-carbidopa for use in children with amblyopia."( Development of two stable oral suspensions of levodopa-carbidopa for children with amblyopia.
Leguire, LE; Morosco, RS; Nahata, MC,
)
0.13
" Therefore, many dosing strategies have been tried with and without concurrent administration of carbidopa, a peripheral inhibitor of the decarboxylation from 5-HTP to serotonin."( Placebo-controlled comparison of three dose-regimens of 5-hydroxytryptophan challenge test in healthy volunteers.
Cohen, AF; de Kam, ML; de Rijk, R; Gijsman, HJ; Pieters, MS; Schoemaker, RC; van der Post, J; van Gerven, JM; Weemaes, M, 2002
)
0.31
" Levodopa and carbidopa combination in 2 different dosage schedules were given to both adults and children."( Effect of levodopa and carbidopa in human amblyopia.
Chaudhuri, Z; Kumar, M; Pandey, PK; Satyabala, K; Sharma, P,
)
0.13
"Thirty (91%) of 33 subjects contacted who participated in three similar 7-week, longitudinal dosing studies returned for follow-up."( Long-term follow-up of L-dopa treatment in children with amblyopia.
Komaromy, KL; Leguire, LE; Nairus, TM; Rogers, GL,
)
0.13
" In the 19 patients studied, there were negative correlations between dosage or absorption and extent of O-methylation and of sulfation of L-DOPA or its metabolites."( L-DOPA biotransformation: correlations of dosage, erythrocyte catechol O-methyltransferase and platelet SULT1A3 activities with metabolic pathways in Parkinsonian patients.
Decker, PA; Dousa, MK; Muenter, MD; Offord, KP; Tyce, GM; Weinshilboum, RM, 2003
)
0.32
" In order to simplify the daily dosing of these medications, Orion has developed an entacapone/levodopa/carbidopa combination tablet."( Entacapone/levodopa/carbidopa combination tablet: Stalevo.
, 2003
)
0.32
" This problem emerged 2 weeks after the patient's dosage of carbidopa 50 mg-levodopa 200 mg 3 times/day was decreased to twice/day."( Apraxia of lid opening: dose-dependent response to carbidopa-levodopa.
Finley, R; Lee, KC; Miller, B, 2004
)
0.32
" Moreover, increasing doses of carbidopa significantly shifted the inhibitory dose-response effect of delta-9-THC in protecting shrews from 5-HTP-induced emesis to the left."( Central and peripheral mechanisms contribute to the antiemetic actions of delta-9-tetrahydrocannabinol against 5-hydroxytryptophan-induced emesis.
Darmani, NA; Johnson, JC, 2004
)
0.32
" These data support the notion that pulsatile stimulation contributes to the development of dyskinesia and suggests that more frequent dosing of L-dopa plus entacapone may be a useful treatment strategy for patients in the early stages of Parkinson's disease."( Multiple small doses of levodopa plus entacapone produce continuous dopaminergic stimulation and reduce dyskinesia induction in MPTP-treated drug-naive primates.
Al-Barghouthy, G; Jackson, MJ; Jenner, P; Kuoppamaki, M; Olanow, W; Rose, S; Smith, LA, 2005
)
0.33
"Twenty-five patients with PD who were taking physician-optimized doses of levodopa/carbidopa (with daytime dosing intervals of 4-8 h) were administered once-daily doses of either donepezil HCl (5 mg) or placebo for 15 days, in two treatment periods, separated by a washout of at least 2 weeks."( Concurrent administration of donepezil HCl and levodopa/carbidopa in patients with Parkinson's disease: assessment of pharmacokinetic changes and safety following multiple oral doses.
Cullen, EI; Hahne, WA; Kirby, L; Kumar, D; Okereke, CS; Pratt, RD, 2004
)
0.32
"Clinical awareness to the structured order of responses and to the effect of dosage can help clinicians in early assessment of response to dopaminergic treatment in VS patients."( Differential time and related appearance of signs, indicating improvement in the state of consciousness in vegetative state traumatic brain injury (VS-TBI) patients after initiation of dopamine treatment.
Groswasser, Z; Keren, O; Krimchansky, BZ; Sazbon, L, 2004
)
0.32
" CD/LD-loaded microspheres were specifically prepared to apply as an injectable dosage forms for brain implantation."( Carbidopa/levodopa-loaded biodegradable microspheres: in vivo evaluation on experimental Parkinsonism in rats.
Akalan, N; Arica, B; Hincal, AA; Kaş, HS; Moghdam, A, 2005
)
0.33
"Subjects aged > or =18 years with PD controlled using a stable dosage of C-L were enrolled in this multicenter, open-label, sequential study."( A multicenter, open-label, sequential study comparing preferences for carbidopa-levodopa orally disintegrating tablets and conventional tablets in subjects with Parkinson's disease.
DeRoche, C; Kastenholz, KV; Nausieda, PA; Pfeiffer, RF; Slevin, JT; Tagliati, M, 2005
)
0.33
" Twenty-one treated PD patients received LD/CD and then the identical oral LD dosage of LCE within a standardized setting on 2 consecutive days."( Inhibition of catechol-O-methyltransferase contributes to more stable levodopa plasma levels.
Bremen, D; Erdmann, C; Muhlack, S; Müller, T; Przuntek, H; Woitalla, D, 2006
)
0.33
" The dosage was gradually escalated over 9 weeks and then maintained until Week 40, at which time active treatment was withdrawn over 3 days."( Does levodopa slow or hasten the rate of progression of Parkinson's disease?
Fahn, S, 2005
)
0.33
" OTHER OBSERVATIONS: The ELLDOPA study was the first levodopa dose-response study ever conducted."( Does levodopa slow or hasten the rate of progression of Parkinson's disease?
Fahn, S, 2005
)
0.33
" The model accounted for levodopa dosing prior to each trial and endogenous levodopa synthesis."( Importance of within subject variation in levodopa pharmacokinetics: a 4 year cohort study in Parkinson's disease.
Chan, PL; Holford, NH; Nutt, JG, 2005
)
0.33
" Not optimum treated hospitalised patients with Parkinson's disease received the same LD dosage on the first day only with carbidopa (CD) and on the second day with CD and EN (t."( Pharmacokinetic behaviour of levodopa and 3-O-methyldopa after repeat administration of levodopa/carbidopa with and without entacapone in patients with Parkinson's disease.
Bremen, D; Erdmann, C; Goetze, O; Muhlack, S; Müller, T; Przuntek, H; Woitalla, D, 2006
)
0.33
" The choices available to alleviate these motor fluctuations range from altering the patient's levodopa/carbidopa dosing schedule to the addition of other agents to the regimen, including dopamine receptor agonists, catechol-O-methyltransferase inhibitors, monoamine oxidase inhibitors, and amantadine, as well as implementing dietary changes."( Motor fluctuations in Parkinson's disease.
Weiner, WJ, 2006
)
0.33
" We compared the motor response after once dosing of 200 mg retarded release LD (levodopa)/CD (carbidopa) and of 150 mg LD/CD/EN (entacapone) by rating of motor symptoms, by measurement of LD- and 3-O-methyldopa (3-OMD) plasma concentrations and by the outcomes of a line tracing task."( Comparison of 200 mg retarded release levodopa/carbidopa - with 150 mg levodopa/carbidopa/entacapone application: pharmacokinetics and efficacy in patients with Parkinson's disease.
Ander, L; Kolf, K; Muhlack, S; Müller, T; Woitalla, D, 2007
)
0.34
" However, due to the short duration of action of conventional levodopa/decarboxylase inhibitor formulations, multiple dosing may be required in individual patients with persisting symptoms."( Entacapone prolongs the reduction of PLM by levodopa/carbidopa in restless legs syndrome.
Ellmén, J; Hirvonen, K; Karvinen, J; Polo, O; Vahteristo, M; Ylä-Sahra, R,
)
0.13
" Thus, a reduction of the total levodopa dosage would be recommended."( Should levodopa dose be reduced when switched to stalevo?
Hernández, B; Kulisevsky, J; Linazasoro, G, 2008
)
0.35
" A double-blind, placebo-controlled, single rising dose, four-way crossover trial with placebo randomisation was performed in 15 healthy male volunteers to investigate the neuroendocrine dose-response relationship at various 5-HTP levels; the tolerability and subjective effects of oral 5-HTP at 100, 200 and 300 mg combined with CBD and the pharmacokinetic properties of the 5-HTP/CBD-challenge."( Pharmacology of rising oral doses of 5-hydroxytryptophan with carbidopa.
de Kam, ML; de Rijk, R; Gijsman, HJ; Hoeberechts-Lefrandt, DH; Jacobs, GE; Schoemaker, RC; Smarius, LJ; van der Post, JP; van Gerven, JM; van Pelt, J; Zitman, FG, 2008
)
0.35
" This report suggests that serum prolactin levels can be a good biomarker for optimal dosage of hydroxylated precursors in long-term treatment monitoring."( Serum prolactin as a tool for the follow-up of treated DHPR-deficient patients.
Concolino, D; Moricca, MT; Muzzi, G; Pascale, MG; Rapsomaniki, M; Strisciuglio, P, 2008
)
0.35
" Fiber was administered at two different doses, 100 and 400 mg/kg, and the dosage of levodopa/carbidopa was 20:5 mg/kg."( The hydrosoluble fiber Plantago ovata husk improves levodopa (with carbidopa) bioavailability after repeated administration.
Diez, MJ; Fernandez, N; Garcia, JJ; Prieto, C; Sahagun, A; Sierra, M, 2008
)
0.35
" Given these findings, it is important for physicians to understand the relationship between the pharmacokinetics and pharmacodynamics of levodopa in order to provide dosage regimens that meet patient needs."( The pharmacokinetics and pharmacodynamics of levodopa in the treatment of Parkinson's disease.
Hsu, A; Khor, SP, 2007
)
0.34
" The present study was directed toward examining reach-to-eat movements in early PD patients untreated with medication, along with a follow-up examination of a PD patient sub-group who were treated with a symptomatically stable dosage of dopamine replacement."( Bilateral impairments of skilled reach-to-eat in early Parkinson's disease patients presenting with unilateral or asymmetrical symptoms.
Doan, JB; Melvin, KG; Suchowersky, O; Whishaw, IQ, 2008
)
0.35
" The results of the study revealed that the drug substantially reduced motor deficit, increased the "on"-period, decreased the duration and severity of the "off" period, improved the daily activity and quality of life of patients compared to standard therapy with an additional dosage of levodopa/DDC inhibitor."( [The clinical-pharmacoeconomic study of efficacy of stalevo in the treatment of Parkinson's disease with motor fluctuations].
Chigir', IP; Dokadina, LV; Fedorova, NV; Levin, OS; Makhnev, SO; Smolentseva, IG, 2008
)
0.35
"Open-label, randomized, two-period, active-controlled, cross-over study with four dosing regimens: groups I and II (healthy volunteers and Parkinson's disease patients) received levodopa 100 mg or 150 mg four times daily, respectively, and groups III and IV (healthy volunteers) received the same strengths of levodopa five times daily."( Comparison of pharmacokinetic profile of levodopa throughout the day between levodopa/carbidopa/entacapone and levodopa/carbidopa when administered four or five times daily.
Ellmén, J; Hänninen, J; Hartikainen, P; Kaakkola, S; Kaasinen, V; Kailajärvi, M; Korpela, K; Kuoppamäki, M; Löyttyniemi, E; Lyytinen, J; Marttila, R; Ruokoniemi, P, 2009
)
0.35
"The present results on the differences in levodopa PK between LCE and LC provide a basis to evaluate the relationship of levodopa PK and the induction of motor complications in an on-going study in early Parkinson's disease using similar dosing regimens."( Comparison of pharmacokinetic profile of levodopa throughout the day between levodopa/carbidopa/entacapone and levodopa/carbidopa when administered four or five times daily.
Ellmén, J; Hänninen, J; Hartikainen, P; Kaakkola, S; Kaasinen, V; Kailajärvi, M; Korpela, K; Kuoppamäki, M; Löyttyniemi, E; Lyytinen, J; Marttila, R; Ruokoniemi, P, 2009
)
0.35
"A simple, precise, and accurate high-performance liquid chromatographic method was developed and validated to determine percent drug release of levodopa (LEV), carbidopa (CAR), and entacapone (ENT) from its combination dosage form."( Development and application of a high-performance liquid chromatographic method for the determination of in vitro drug release of levodopa, carbidopa, and entacapone from a tablet formulation.
Doshi, AS; Mehta, TN; Nanda, N; Upadhyay, KJ,
)
0.13
" In this group, substitution with IPX054 reduced dosing frequency while maintaining CD/LD efficacy."( Reducing dosing frequency of carbidopa/levodopa: double-blind crossover study comparing twice-daily bilayer formulation of carbidopa/levodopa (IPX054) versus 4 daily doses of standard carbidopa/levodopa in stable Parkinson disease patients.
Fan, W; Goetz, CG; Hinson, VK; Hsu, A; Leurgans, S; Nguyen, T,
)
0.13
"In this open-label naturalistic study, 75 PD patients (group A) completely switched standard LD (Sinemet or Madopar) with Sirio at an equivalent dosage (800-1000 mg/d)."( Clinical experiences with levodopa methylester (melevodopa) in patients with Parkinson disease experiencing motor fluctuations: an open-label observational study.
Antonini, A; Guidi, M; Mancini, F; Martignoni, E; Pacchetti, C; Sciarretta, M; Stocchi, F; Zangaglia, R,
)
0.13
" Oral levodopa dosing was increased in 28% of patients; the primary outcome remained significant when these patients were excluded."( Direct switch from levodopa/benserazide or levodopa/carbidopa to levodopa/carbidopa/entacapone in Parkinson's disease patients with wearing-off: efficacy, safety and feasibility--an open-label, 6-week study.
Amar, K; Eggert, K; Kuoppamäki, M; Leinonen, M; Luotonen, L; Nissinen, H; Oertel, W; Skogar, O, 2010
)
0.36
" We now report on the choice of dopa decarboxylase inhibitors, dose and the time of dosing relationships of carbidopa, benserazide and L-alpha-methyl dopa (L-AMD) in potentiating the effects of L-DOPA in the 1-methyl-4-phenyl-1,2,3,6 tetrahydropyridine (MPTP)-treated common marmoset."( The timing of administration, dose dependence and efficacy of dopa decarboxylase inhibitors on the reversal of motor disability produced by L-DOPA in the MPTP-treated common marmoset.
Fisher, R; Jackson, MJ; Jenner, P; Rose, S; Tayarani-Binazir, KA; Zoubiane, G, 2010
)
0.36
"5%) or dispensation of the wrong carbidopa/levodopa dosage (2/8; 25%)."( Carbidopa/levodopa pharmacy errors in Parkinson's disease.
Khadem, NR; Nirenberg, MJ, 2010
)
0.36
" Neither disease severity nor L-dopa dosage correlated with plasma AVP levels."( Increased plasma arginine vasopressin levels in dopamine agonist-treated Parkinson's disease patients.
Arai, M, 2011
)
0.37
"Patients with Parkinson's disease can benefit from controlled released levodopa dosage forms since there is a clear clinical advantage in obtaining sustained plasma concentrations."( In-vivo evaluation of prolonged release bilayer tablets of anti-Parkinson drugs in Göttingen minipigs.
Bonifácio, MJ; Falcão, A; Lobo, JS; Machado, R; Soares-da-Silva, P; Sousa e Silva, JP, 2011
)
0.37
" This study demonstrates that gastric-retentive ER dosage forms may reduce dose frequency while minimizing the plasma peak-to-trough fluctuation and consequently reduce motor fluctuation in patients with Parkinson's disease."( Pharmacokinetics of levodopa/carbidopa delivered from gastric-retentive extended-release formulations in patients with Parkinson's disease.
Chen, C; Cowles, VE; Illarioshkin, SN; Stolyarov, ID; Sweeney, M, 2012
)
0.38
"Repeated dosing of levodopa/carbidopa/entacapone (LCE) has shown a favourable pharmacokinetic (PK) profile compared with levodopa/carbidopa (LC), but increases maximum plasma levodopa concentrations (C(max)) during the day."( The effect of different dosing regimens of levodopa/carbidopa/entacapone on plasma levodopa concentrations.
Ellmén, J; Ingman, K; Korpela, I; Kuoppamäki, M; Naukkarinen, T; Vahteristo, M, 2012
)
0.38
"5/200 mg (LCE 100 and LCE 150), respectively, would avoid the increase in levodopa C(max) values observed during multiple dosing of LCE 100 and LCE 150."( The effect of different dosing regimens of levodopa/carbidopa/entacapone on plasma levodopa concentrations.
Ellmén, J; Ingman, K; Korpela, I; Kuoppamäki, M; Naukkarinen, T; Vahteristo, M, 2012
)
0.38
" Levodopa/carbidopa intestinal gel (Duodopa) doses of 80% to 120% of individually and clinically optimized dosage were infused during five 4-hour periods."( Complexity of motor response to different doses of duodenal levodopa infusion in Parkinson disease.
Aquilonius, SM; Askmark, H; Hellquist, E; Johansson, A; Lennernäs, H; Nyholm, D,
)
0.13
" This case report serves as a reminder of the importance that patients receive their anti-Parkinsonian medications perioperatively, and highlights the potential benefits of inserting a gastric tube to continue anti-Parkinson's medication dosing during prolonged surgery."( Nasogastric medication for perioperative Parkinson's rigidity during anaesthesia emergence.
Grice, T; Stagg, P, 2011
)
0.37
" Dosage of the drug was stable over time."( Levodopa/carbidopa intestinal gel infusion long-term therapy in advanced Parkinson's disease.
Johansson, A; Klangemo, K; Nyholm, D, 2012
)
0.38
" Although mean plasma AVP levels are significantly higher in treated PD patients than in treatment-naïve patients, neither disease severity nor levodopa/carbidopa dosage (range, 300/30-850/85 mg) correlates with plasma AVP levels."( Levodopa in combination with carbidopa does not affect plasma arginine vasopressin levels in treatment-naïve older patients with Parkinson's disease: A before-after study.
Arai, M, 2012
)
0.38
" The microtablets are intended for individualized dosing of levodopa/carbidopa in Parkinson disease by means of an electronic dose dispenser with a built-in diary for symptom registration."( Pharmacokinetics of levodopa/carbidopa microtablets versus levodopa/benserazide and levodopa/carbidopa in healthy volunteers.
Aquilonius, SM; Bäckström, T; Ehrnebo, M; Gomes-Trolin, C; Lewander, T; Nyholm, D; Nyström, C; Panagiotidis, G,
)
0.13
"Repeated dosing (2."( Frequent administration of levodopa/carbidopa microtablets vs levodopa/carbidopa/entacapone in healthy volunteers.
Aquilonius, SM; Bäckström, T; Ehrnebo, M; Lewander, T; Nyholm, D; Nyström, C; Panagiotidis, G; Spira, J; Trolin, CG, 2013
)
0.39
" We propose an alternative apomorphine challenge test, with a single injection and a higher initial dosage of 2-4 mg, as well as to schedule treatment according to the obtained response at that dosage."( [Proposed alternative to standard apomorphine challenge test].
Burguera, JA; Martínez-Castrillo, JC, 2012
)
0.38
"For best symptom management, careful consideration should be given to scheduling surgery at the earliest possible time, administering medications as close to the patient's usual dosing schedule as possible, and providing nursing education about optimal medication management for this patient population."( Perioperative medication withholding in patients with Parkinson's disease: a retrospective electronic health records review.
Anderson, LC; Fagerlund, K; Gurvich, O, 2013
)
0.39
" Different dosage of levodopa did not impact on the rotarod time (p>0."( Anti-allodynic effects of levodopa in neuropathic rats.
Joo, HS; Kim, ES; Kim, YH; Kwon, OK; Lee, J; Moon, DE; Park, HJ, 2013
)
0.39
" Effects of escalating ropinirole dosage on plasma AVP levels were evaluated using a one-way analysis of variance for repeated measures, an a priori Dunnett multiple comparison test, and a regression analysis."( Ropinirole does not affect plasma arginine vasopressin levels in patients with advanced Parkinson's disease.
Arai, M, 2012
)
0.38
" There was no statistically significant dose-response relationship between the ropinirole dosage and plasma AVP levels."( Ropinirole does not affect plasma arginine vasopressin levels in patients with advanced Parkinson's disease.
Arai, M, 2012
)
0.38
"A minimal therapeutic dosage of ropinirole did not affect plasma AVP levels in patients with PD taking levodopa."( Ropinirole does not affect plasma arginine vasopressin levels in patients with advanced Parkinson's disease.
Arai, M, 2012
)
0.38
"Extended-release carbidopa-levodopa might be a useful treatment for patients with Parkinson's disease who have motor fluctuations, with potential benefits including decreased off-time and reduced levodopa dosing frequency."( Extended-release carbidopa-levodopa (IPX066) compared with immediate-release carbidopa-levodopa in patients with Parkinson's disease and motor fluctuations: a phase 3 randomised, double-blind trial.
Espay, AJ; Gupta, S; Hauser, RA; Hsu, A; Kell, S; O'Connell, M; Ondo, W; Sethi, K; Stacy, M, 2013
)
0.39
" Staff familiarity with Parkinson disease, and especially carbidopa-levodopa dosing and dynamics, may prevent such problems and streamline hospital and nursing home care."( Parkinson disease treatment in hospitals and nursing facilities: avoiding pitfalls.
Ahlskog, JE, 2014
)
0.4
" Their median daily LD dosage was 1495 mg from IPX066 and 600 mg from CL + E, corresponding, after correction for bioavailability, to an approximately 22% higher LD exposure on IPX066."( Comparison of IPX066 with carbidopa-levodopa plus entacapone in advanced PD patients.
Dillmann, U; Ellenbogen, A; Gupta, S; Hsu, A; Kell, S; Khanna, S; Liang, G; Mahler, A; Rubens, R; Stocchi, F, 2014
)
0.4
" However, the dosage and the actual effectiveness of carbidopa have not yet been well defined."( Evaluation of levodopa and carbidopa antioxidant activity in normal human lymphocytes in vitro: implication for oxidative stress in Parkinson's disease.
Ceci, R; Colamartino, M; Cozzi, R; Duranti, G; Padua, L; Sabatini, S; Santoro, M; Testa, A, 2015
)
0.42
" Both patients exhibited the clinical features of serotonin syndrome, coinciding with an increase in dosage of each drug."( Serotonin syndrome in stroke patients.
Chang, MC; Jang, SH; Kwon, YM, 2015
)
0.42
"Thirty-four patients were enrolled; mean baseline L-dopa dosage was 968 mg/d."( Gastroretentive carbidopa/levodopa, DM-1992, for the treatment of advanced Parkinson's disease.
Chen, C; Cowles, VE; Stover, N; Sweeney, M; Verhagen Metman, L, 2015
)
0.42
"DM-1992 was associated with a reduction in %OFF time compared with CD/L-dopa IR despite a reduced dosing frequency."( Gastroretentive carbidopa/levodopa, DM-1992, for the treatment of advanced Parkinson's disease.
Chen, C; Cowles, VE; Stover, N; Sweeney, M; Verhagen Metman, L, 2015
)
0.42
" Early PD patients were titrated to an appropriate dosing regimen while advanced patients started with regimens established in the antecedent studies."( Long-Term Treatment with Extended-Release Carbidopa-Levodopa (IPX066) in Early and Advanced Parkinson's Disease: A 9-Month Open-Label Extension Trial.
Dzyak, L; Gupta, S; Hsu, A; Kell, S; Khanna, S; Nausieda, P; Rudzinska, M; Silver, DE; Spiegel, J; Tsurkalenko, ES; Waters, CH, 2015
)
0.42
"Clinical experience with 2 LCIG dosing paradigms from phase 3 studies was examined."( Initiation and dose optimization for levodopa-carbidopa intestinal gel: Insights from phase 3 clinical trials.
Benesh, JA; Chatamra, K; Dubow, JS; Fung, VS; Krüger, R; Lew, MF; Martínez Castrillo, JC; Robieson, WZ; Slevin, JT, 2015
)
0.42
"6 days; dosing remained stable post-titration (mean total daily dose [TDD] was 1572 mg at last visit)."( Initiation and dose optimization for levodopa-carbidopa intestinal gel: Insights from phase 3 clinical trials.
Benesh, JA; Chatamra, K; Dubow, JS; Fung, VS; Krüger, R; Lew, MF; Martínez Castrillo, JC; Robieson, WZ; Slevin, JT, 2015
)
0.42
" IPX066 was designed to rapidly attain therapeutic LD concentrations and maintain them to allow a dosing interval of ∼6 hours."( Conversion to IPX066 from Standard Levodopa Formulations in Advanced Parkinson's Disease: Experience in Clinical Trials.
Elmer, L; Gil, RA; Gupta, S; Hsu, A; Kell, S; Khanna, S; Modi, NB; Nausieda, PA; Rubens, R; Singer, C; Spiegel, J, 2015
)
0.42
"To extensively analyze the dosing data collected in IPX066 studies during open-label conversions from IR CD-LD alone or with entacapone (CLE) and identify patterns relevant for managing conversion in the clinical setting."( Conversion to IPX066 from Standard Levodopa Formulations in Advanced Parkinson's Disease: Experience in Clinical Trials.
Elmer, L; Gil, RA; Gupta, S; Hsu, A; Kell, S; Khanna, S; Modi, NB; Nausieda, PA; Rubens, R; Singer, C; Spiegel, J, 2015
)
0.42
" Suggested initial dosing conversion tables based on prior LD daily dosage were provided."( Conversion to IPX066 from Standard Levodopa Formulations in Advanced Parkinson's Disease: Experience in Clinical Trials.
Elmer, L; Gil, RA; Gupta, S; Hsu, A; Kell, S; Khanna, S; Modi, NB; Nausieda, PA; Rubens, R; Singer, C; Spiegel, J, 2015
)
0.42
" A dose-response relationship is established for carbidopa-levodopa extended-release capsules (IPX066) in levodopa-naive Parkinson disease patients using a disease progression model."( Dose-Response Analysis of the Effect of Carbidopa-Levodopa Extended-Release Capsules (IPX066) in Levodopa-Naive Patients With Parkinson Disease.
Mao, ZL; Modi, NB, 2016
)
0.43
" Levodopa/carbidopa intestinal gel is an aqueous gel that can be delivered to the jejunum via a percutaneous gastrojejunostomy tube which is connected to an infusion pump dosing the levodopa gel continuously to the place of absorption."( [Application of levodopa/carbidopa intestinal gel in advanced Parkinson's disease].
Bereczki, D; Nagy, H; Takáts, A; Toth, A; Wacha, J, 2015
)
0.42
" Facial emotion recognition was measured twice during target LCE dosing and twice on placebo: once without cocaine and once after repeated cocaine doses."( Effects of levodopa-carbidopa-entacapone and smoked cocaine on facial affect recognition in cocaine smokers.
Bedi, G; Bisaga, A; Foltin, RW; Nunes, EV; Shiffrin, L; Vadhan, NP, 2016
)
0.43
" It is critical to understand the appropriate conversion of the carbidopa/levodopa daily dosages to the CLES dosage and how to program the pump and titrate CLES to achieve the most effective dose."( Outpatient titration of carbidopa/levodopa enteral suspension (Duopa).
Lyons, KE; Pahwa, R, 2017
)
0.46
" Examples and a case study to illustrate how pharmacokinetics and pharmacodynamics contributed to the selection of dosing regimens, demonstration of an improved therapeutic effect, or regulatory approval of an improved product label are presented."( Application of Pharmacokinetics and Pharmacodynamics in Product Life Cycle Management. A Case Study with a Carbidopa-Levodopa Extended-Release Formulation.
Modi, NB, 2017
)
0.46
"IPX066 (Rytary®; carbidopa and levodopa [CD-LD] extended-release capsules) was designed to achieve therapeutic LD plasma concentrations within 1h of dosing and maintain LD concentrations for a prolonged duration in early or advanced Parkinson's disease (PD)."( Conversion to carbidopa and levodopa extended-release (IPX066) followed by its extended use in patients previously taking controlled-release carbidopa-levodopa for advanced Parkinson's disease.
Duker, AP; Ellenbogen, A; Farbman, ES; Gupta, S; Hauser, RA; Hsu, A; Kell, S; Khanna, S; Kreitzman, D; Liang, GS; Nausieda, P; Nieves, A; Rubens, R; Tetrud, J, 2017
)
0.46
"To evaluate individualized levodopa/carbidopa dosing using microtablets dispensed with a dose dispenser, with respect to efficacy and usability as perceived by patients."( First clinical experience with levodopa/carbidopa microtablets in Parkinson's disease.
Albo, J; Hellström, M; Nyholm, D; Senek, M; Svenningsson, P, 2017
)
0.46
"A new extended release levodopa capsule (C/L ERC), Rytary®, has demonstrated improved "on" time in fluctuating Parkinson's disease patients, compared to optimally dosed immediate release levodopa."( Conversion of L-dopa to Extended Release L-dopa (Rytary®) in Patients with Fluctuating Parkinson's Disease: Predictors of Dose.
Christie, M; Coss, P; Ondo, W; Pascual, B, 2019
)
0.51
" This study proposes a dosing algorithm for oral administration of levodopa and evaluates its integration into a sensor-based dosing system (SBDS)."( Sensor-based algorithmic dosing suggestions for oral administration of levodopa/carbidopa microtablets for Parkinson's disease: a first experience.
Alam, M; Bergquist, F; Johansson, D; Memedi, M; Nyholm, D; Thomas, I; Westin, J, 2019
)
0.51
" The SBDS uses data from wearable sensors to fit individual patient models, which are then used as input to the dosing algorithm."( Sensor-based algorithmic dosing suggestions for oral administration of levodopa/carbidopa microtablets for Parkinson's disease: a first experience.
Alam, M; Bergquist, F; Johansson, D; Memedi, M; Nyholm, D; Thomas, I; Westin, J, 2019
)
0.51
"This study shows that it is possible to use algorithmic sensor-based dosing adjustments to optimize treatment with oral medication for PD patients."( Sensor-based algorithmic dosing suggestions for oral administration of levodopa/carbidopa microtablets for Parkinson's disease: a first experience.
Alam, M; Bergquist, F; Johansson, D; Memedi, M; Nyholm, D; Thomas, I; Westin, J, 2019
)
0.51
" Using a randomized, double-blind, 2-way crossover design, eligible patients in the morning OFF state (having not received PD medication overnight) received a single dose of CVT-301 84 mg or placebo on 2 dosing days, immediately after their first morning oral carbidopa/levodopa dose."( Orally inhaled levodopa (CVT-301) for early morning OFF periods in Parkinson's disease.
Ellenbogen, A; Hauser, RA; Isaacson, SH; Kegler-Ebo, DM; Komjathy, SF; Oh, C; Safirstein, BE; Truong, DD; Zhao, P, 2019
)
0.51
" Adult Wistar rats treated with CPZ (3 mg/kg/day, IP) were orally dosed with diclofenac and L-dopa/carbidopa for 21 days."( Neuroprotective effect of diclofenac on chlorpromazine induced catalepsy in rats.
Khan, SS; Mirza, T; Naeem, S; Najam, R; Sikandar, B, 2019
)
0.51
"This series of studies demonstrates that small continuous dosing of subcutaneous CD has an unexpected effect on LD pharmacokinetics greater than the extent of decarboxylase inhibition achieved by additional oral CD administration."( Subcutaneous Administration of Carbidopa Enhances Oral Levodopa Pharmacokinetics: A Series of Studies Conducted in Pigs, Mice, and Healthy Volunteers.
Caraco, Y; LeWitt, PA; Nemas, M; Oren, S; Shaltiel-Karyo, R; Weinstock, I; Yacoby-Zeevi, O; Zawaznik, E,
)
0.13
" Therapeutically, this in turn leads to further fractioning of the levodopa dosage and a reduction of single-dose levels."( [New Therapeutic Options for the Individualised Titration of Levodopa].
Ebersbach, G; Jost, WH; Kassubek, J; Klebe, S; Tönges, L, 2021
)
0.62
"ND0612 is a continuous, subcutaneous levodopa/carbidopa delivery system in development for patients with Parkinson's disease (PD) experiencing motor fluctuationsObjective:Evaluate the efficacy and safety of two ND0612 dosing regimens in patients with PD."( Continuous Subcutaneous Levodopa Delivery for Parkinson's Disease: A Randomized Study.
Adar, L; Case, RJ; Ellenbogen, AL; Espay, AJ; Leinonen, M; Olanow, CW; Oren, S; Orenbach, SF; Poewe, W; Stocchi, F; Yardeni, T, 2021
)
0.62
" Foslevodopa/foscarbidopa infusion provides stable LD and CD exposures compared to oral LD/CD dosing with the average steady-state exposure ranging from 747-4660 ng/mL for the different groups."( Foslevodopa/Foscarbidopa Is Well Tolerated and Maintains Stable Levodopa and Carbidopa Exposure Following Subcutaneous Infusion.
Facheris, MF; Liu, W; Neenan, M; Rosebraugh, M, 2021
)
0.62
"BeyoND is an open-label study evaluating the long-term safety of two ND0612 dosing regimens."( Subcutaneous Levodopa Infusion for Parkinson's Disease: 1-Year Data from the Open-Label BeyoND Study.
Adar, L; Arkadir, D; Case, R; Ebersbach, G; Ellenbogen, AL; Espay, AJ; Fuchs Orenbach, S; Giladi, N; Isaacson, SH; Kieburtz, K; LeWitt, P; Olanow, CW; Oren, S; Poewe, W; Rosenfeld, O; Sasson, N; Simuni, T; Stocchi, F; Thomas, A; Yardeni, T; Zlotogorski, A, 2021
)
0.62
" These include the timing, dosage and administration of levodopa, concomitant drugs, food, PD-associated non-motor symptoms, and various neurologic and non-neurologic comorbidities."( Practical pearls to improve the efficacy and tolerability of levodopa in Parkinson's disease.
Bahroo, L; Di Maria, G; Jankovic, J; Lamotte, G; Lenka, A, 2022
)
0.72
" Carbidopa dosing is crucial as it not only enhances the entry of levodopa into the central nervous system but also reduces levodopa's peripheral adverse effects."( Practical pearls to improve the efficacy and tolerability of levodopa in Parkinson's disease.
Bahroo, L; Di Maria, G; Jankovic, J; Lamotte, G; Lenka, A, 2022
)
0.72
"01) in the second period, but with similar dosing frequency."( Ten-year trends of the characteristics in patients with advanced Parkinson's disease at the time of intestinal gel therapy introduction
Baróti, B; Constantin, V; Forró, T; Frigy, A; Kelemen, K; Metz, J; Mihály, I; Orbán-Kis, K; Szász, JA; Szász, RM; Szatmári, S; Török, Á, 2022
)
0.72
"To evaluate the effects of once-daily opicapone on levodopa plasma pharmacokinetics and motor response when added to two different levodopa dosing regimens."( Effect of Opicapone on Levodopa Pharmacokinetics in Patients with Fluctuating Parkinson's Disease.
Antonini, A; Ferreira, JJ; Guimarães, B; Moreira, J; Poewe, W; Rascol, O; Rocha, JF; Soares-da-Silva, P; Stocchi, F, 2022
)
0.72
" To show that generic drugs are equivalent to the originator drug, regulations usually refer to the bioavailability of active ingredients, which is influenced by the selected dosage form and the chosen excipients."( Different dissolution conditions affect stability and dissolution profiles of bioequivalent levodopa-containing oral dosage forms.
Langer, K; Rose, O; Weitzel, J; Wünsch, A, 2022
)
0.72
" To study whether human equivalent doses of L-DOPA/Carbidopa administered during the crucial postnatal period of neuroplasticity can rescue visual function, OCA C57BL/6 J-c2J OCA1 mice were treated with a 28-day course of oral L-DOPA/Carbidopa at 3 different doses from 15 to 43 days postnatal age (PNA) and for 3 different lengths of treatment, to identify optimum dosage and treatment length."( Human equivalent doses of L-DOPA rescues retinal morphology and visual function in a murine model of albinism.
Griffiths, H; Keeling, E; Lee, H; Lotery, AJ; Lynn, SA; Macdonald, SL; Newall, T; Ratnayaka, JA; Sanchez-Bretano, A; Scott, JA; Self, JE; Soundara-Pandi, SP, 2023
)
0.91
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Roles (4)

RoleDescription
EC 4.1.1.28 (aromatic-L-amino-acid decarboxylase) inhibitorAn EC 4.1.1.* (carboxy-lyase) inhibitor that interferes with the action of aromatic-L-amino-acid decarboxylase (EC 4.1.1.28).
antiparkinson drugA drug used in the treatment of Parkinson's disease.
dopaminergic agentA drug used for its effects on dopamine receptors, on the life cycle of dopamine, or on the survival of dopaminergic neurons.
antidyskinesia agentAny compound which can be used to treat or alleviate the symptoms of dyskinesia.
EC 4.1.1.28 (aromatic-L-amino-acid decarboxylase) inhibitorAn EC 4.1.1.* (carboxy-lyase) inhibitor that interferes with the action of aromatic-L-amino-acid decarboxylase (EC 4.1.1.28).
antiparkinson drugA drug used in the treatment of Parkinson's disease.
dopaminergic agentA drug used for its effects on dopamine receptors, on the life cycle of dopamine, or on the survival of dopaminergic neurons.
[role information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Drug Classes (5)

ClassDescription
hydrazinesHydrazine (diazane) and its substituted derivatives.
hydrateAn addition compound that contains water in weak chemical combination with another compound.
monocarboxylic acidAn oxoacid containing a single carboxy group.
catecholsAny compound containing an o-diphenol component.
monocarboxylic acidAn oxoacid containing a single carboxy group.
benzenesAny benzenoid aromatic compound consisting of the benzene skeleton and its substituted derivatives.
hydrazinesHydrazine (diazane) and its substituted derivatives.
monocarboxylic acidAn oxoacid containing a single carboxy group.
catecholsAny compound containing an o-diphenol component.
[compound class information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Pathways (1)

PathwayProteinsCompounds
L-tryptophan degradation X (mammalian, via tryptamine)519

Protein Targets (73)

Potency Measurements

ProteinTaxonomyMeasurementAverage (µ)Min (ref.)Avg (ref.)Max (ref.)Bioassay(s)
Chain A, MAJOR APURINIC/APYRIMIDINIC ENDONUCLEASEHomo sapiens (human)Potency100.00000.003245.467312,589.2998AID2517
Chain A, Putative fructose-1,6-bisphosphate aldolaseGiardia intestinalisPotency15.81140.140911.194039.8107AID2451
Chain A, HADH2 proteinHomo sapiens (human)Potency19.95260.025120.237639.8107AID893
Chain B, HADH2 proteinHomo sapiens (human)Potency19.95260.025120.237639.8107AID893
Chain A, 2-oxoglutarate OxygenaseHomo sapiens (human)Potency2.23870.177814.390939.8107AID2147
phosphopantetheinyl transferaseBacillus subtilisPotency48.53180.141337.9142100.0000AID1490; AID2701
TDP1 proteinHomo sapiens (human)Potency13.20050.000811.382244.6684AID686978; AID686979
Microtubule-associated protein tauHomo sapiens (human)Potency19.62210.180013.557439.8107AID1460; AID1468
aldehyde dehydrogenase 1 family, member A1Homo sapiens (human)Potency7.07950.011212.4002100.0000AID1030
EWS/FLI fusion proteinHomo sapiens (human)Potency23.48500.001310.157742.8575AID1259256
polyunsaturated fatty acid lipoxygenase ALOX12Homo sapiens (human)Potency39.81071.000012.232631.6228AID1452
15-hydroxyprostaglandin dehydrogenase [NAD(+)] isoform 1Homo sapiens (human)Potency25.11890.001815.663839.8107AID894
Chain A, MAJOR APURINIC/APYRIMIDINIC ENDONUCLEASEHomo sapiens (human)Potency50.11870.003245.467312,589.2998AID2517
Chain A, TYROSYL-DNA PHOSPHODIESTERASEHomo sapiens (human)Potency1.12200.004023.8416100.0000AID485290
Chain A, Putative fructose-1,6-bisphosphate aldolaseGiardia intestinalisPotency17.74070.140911.194039.8107AID2451
Chain A, HADH2 proteinHomo sapiens (human)Potency15.89070.025120.237639.8107AID886; AID893
Chain B, HADH2 proteinHomo sapiens (human)Potency15.89070.025120.237639.8107AID886; AID893
Chain A, JmjC domain-containing histone demethylation protein 3AHomo sapiens (human)Potency79.43280.631035.7641100.0000AID504339
Chain A, 2-oxoglutarate OxygenaseHomo sapiens (human)Potency3.54810.177814.390939.8107AID2147
LuciferasePhotinus pyralis (common eastern firefly)Potency9.07430.007215.758889.3584AID624030
endonuclease IVEscherichia coliPotency11.22020.707912.432431.6228AID1708
thioredoxin reductaseRattus norvegicus (Norway rat)Potency19.81350.100020.879379.4328AID588453
15-lipoxygenase, partialHomo sapiens (human)Potency3.98110.012610.691788.5700AID887
phosphopantetheinyl transferaseBacillus subtilisPotency35.08410.141337.9142100.0000AID1490; AID2701; AID2707
USP1 protein, partialHomo sapiens (human)Potency89.12510.031637.5844354.8130AID504865
GLS proteinHomo sapiens (human)Potency7.07950.35487.935539.8107AID624170
TDP1 proteinHomo sapiens (human)Potency13.69610.000811.382244.6684AID686978; AID686979
Microtubule-associated protein tauHomo sapiens (human)Potency20.64500.180013.557439.8107AID1460; AID1468
ThrombopoietinHomo sapiens (human)Potency25.11890.02517.304831.6228AID917; AID918
apical membrane antigen 1, AMA1Plasmodium falciparum 3D7Potency3.54810.707912.194339.8107AID720542
aldehyde dehydrogenase 1 family, member A1Homo sapiens (human)Potency24.66450.011212.4002100.0000AID1030
hypothetical protein, conservedTrypanosoma bruceiPotency14.12540.223911.245135.4813AID624173
regulator of G-protein signaling 4Homo sapiens (human)Potency5.32330.531815.435837.6858AID504845
cytochrome P450 family 3 subfamily A polypeptide 4Homo sapiens (human)Potency30.11160.01237.983543.2770AID1645841
glucocorticoid receptor [Homo sapiens]Homo sapiens (human)Potency6.74000.000214.376460.0339AID720691
GVesicular stomatitis virusPotency11.98770.01238.964839.8107AID1645842
euchromatic histone-lysine N-methyltransferase 2Homo sapiens (human)Potency6.58120.035520.977089.1251AID504332
aryl hydrocarbon receptorHomo sapiens (human)Potency9.43920.000723.06741,258.9301AID743122
15-hydroxyprostaglandin dehydrogenase [NAD(+)] isoform 1Homo sapiens (human)Potency30.12720.001815.663839.8107AID894
vitamin D3 receptor isoform VDRAHomo sapiens (human)Potency70.79460.354828.065989.1251AID504847
chromobox protein homolog 1Homo sapiens (human)Potency70.79460.006026.168889.1251AID540317
DNA polymerase betaHomo sapiens (human)Potency89.12510.022421.010289.1251AID485314
mitogen-activated protein kinase 1Homo sapiens (human)Potency0.03980.039816.784239.8107AID995
DNA polymerase iota isoform a (long)Homo sapiens (human)Potency31.62280.050127.073689.1251AID588590
gemininHomo sapiens (human)Potency21.21440.004611.374133.4983AID624296; AID624297
peripheral myelin protein 22Rattus norvegicus (Norway rat)Potency28.69540.005612.367736.1254AID624032
survival motor neuron protein isoform dHomo sapiens (human)Potency1.12200.125912.234435.4813AID1458
cytochrome P450 3A4 isoform 1Homo sapiens (human)Potency39.81070.031610.279239.8107AID884; AID885
M-phase phosphoprotein 8Homo sapiens (human)Potency1.12200.177824.735279.4328AID488949
lamin isoform A-delta10Homo sapiens (human)Potency12.58930.891312.067628.1838AID1487
Gamma-aminobutyric acid receptor subunit piRattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Polyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)Potency22.38720.316212.765731.6228AID881
Interferon betaHomo sapiens (human)Potency11.98770.00339.158239.8107AID1645842
HLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)Potency11.98770.01238.964839.8107AID1645842
Gamma-aminobutyric acid receptor subunit beta-1Rattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit deltaRattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit gamma-2Rattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit alpha-5Rattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit alpha-3Rattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit gamma-1Rattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit alpha-2Rattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit alpha-4Rattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit gamma-3Rattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit alpha-6Rattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Histamine H2 receptorCavia porcellus (domestic guinea pig)Potency22.38720.00638.235039.8107AID881
Gamma-aminobutyric acid receptor subunit alpha-1Rattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit beta-3Rattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit beta-2Rattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Inositol monophosphatase 1Rattus norvegicus (Norway rat)Potency31.62281.000010.475628.1838AID1457
GABA theta subunitRattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
Inositol hexakisphosphate kinase 1Homo sapiens (human)Potency11.98770.01238.964839.8107AID1645842
Gamma-aminobutyric acid receptor subunit epsilonRattus norvegicus (Norway rat)Potency39.81071.000012.224831.6228AID885
cytochrome P450 2C9, partialHomo sapiens (human)Potency11.98770.01238.964839.8107AID1645842
ATP-dependent phosphofructokinaseTrypanosoma brucei brucei TREU927Potency8.91250.060110.745337.9330AID492961
[prepared from compound, protein, and bioassay information from National Library of Medicine (NLM), extracted Dec-2023]

Inhibition Measurements

ProteinTaxonomyMeasurementAverageMin (ref.)Avg (ref.)Max (ref.)Bioassay(s)
Lysine-specific demethylase 4EHomo sapiens (human)Ki1.98001.92002.94504.3300AID604078
Tyrosine-protein kinase LckHomo sapiens (human)IC50 (µMol)6.79500.00021.317310.0000AID625187
Tyrosine-protein kinase FynHomo sapiens (human)IC50 (µMol)3.73100.00021.67898.6800AID625185
Replicase polyprotein 1abBetacoronavirus England 1IC50 (µMol)10.00000.00403.43889.5100AID1640022
ATP-binding cassette sub-family C member 3Homo sapiens (human)IC50 (µMol)133.00000.63154.45319.3000AID1473740
Multidrug resistance-associated protein 4Homo sapiens (human)IC50 (µMol)133.00000.20005.677410.0000AID1473741
Bile salt export pumpHomo sapiens (human)IC50 (µMol)566.50000.11007.190310.0000AID1449628; AID1473738
Replicase polyprotein 1abSevere acute respiratory syndrome coronavirus 2IC50 (µMol)3.55000.00022.45859.9600AID1640021
Canalicular multispecific organic anion transporter 1Homo sapiens (human)IC50 (µMol)133.00002.41006.343310.0000AID1473739
[prepared from compound, protein, and bioassay information from National Library of Medicine (NLM), extracted Dec-2023]

Biological Processes (176)

Processvia Protein(s)Taxonomy
regulation of gene expressionLysine-specific demethylase 4EHomo sapiens (human)
chromatin remodelingLysine-specific demethylase 4EHomo sapiens (human)
protein phosphorylationTyrosine-protein kinase LckHomo sapiens (human)
intracellular zinc ion homeostasisTyrosine-protein kinase LckHomo sapiens (human)
activation of cysteine-type endopeptidase activity involved in apoptotic processTyrosine-protein kinase LckHomo sapiens (human)
response to xenobiotic stimulusTyrosine-protein kinase LckHomo sapiens (human)
peptidyl-tyrosine phosphorylationTyrosine-protein kinase LckHomo sapiens (human)
hemopoiesisTyrosine-protein kinase LckHomo sapiens (human)
platelet activationTyrosine-protein kinase LckHomo sapiens (human)
T cell differentiationTyrosine-protein kinase LckHomo sapiens (human)
T cell costimulationTyrosine-protein kinase LckHomo sapiens (human)
positive regulation of heterotypic cell-cell adhesionTyrosine-protein kinase LckHomo sapiens (human)
intracellular signal transductionTyrosine-protein kinase LckHomo sapiens (human)
peptidyl-tyrosine autophosphorylationTyrosine-protein kinase LckHomo sapiens (human)
Fc-gamma receptor signaling pathwayTyrosine-protein kinase LckHomo sapiens (human)
T cell receptor signaling pathwayTyrosine-protein kinase LckHomo sapiens (human)
positive regulation of T cell receptor signaling pathwayTyrosine-protein kinase LckHomo sapiens (human)
positive regulation of T cell activationTyrosine-protein kinase LckHomo sapiens (human)
leukocyte migrationTyrosine-protein kinase LckHomo sapiens (human)
release of sequestered calcium ion into cytosolTyrosine-protein kinase LckHomo sapiens (human)
regulation of lymphocyte activationTyrosine-protein kinase LckHomo sapiens (human)
positive regulation of leukocyte cell-cell adhesionTyrosine-protein kinase LckHomo sapiens (human)
positive regulation of intrinsic apoptotic signaling pathwayTyrosine-protein kinase LckHomo sapiens (human)
innate immune responseTyrosine-protein kinase LckHomo sapiens (human)
cell surface receptor protein tyrosine kinase signaling pathwayTyrosine-protein kinase LckHomo sapiens (human)
B cell receptor signaling pathwayTyrosine-protein kinase LckHomo sapiens (human)
response to singlet oxygenTyrosine-protein kinase FynHomo sapiens (human)
neuron migrationTyrosine-protein kinase FynHomo sapiens (human)
stimulatory C-type lectin receptor signaling pathwayTyrosine-protein kinase FynHomo sapiens (human)
adaptive immune responseTyrosine-protein kinase FynHomo sapiens (human)
negative regulation of inflammatory response to antigenic stimulusTyrosine-protein kinase FynHomo sapiens (human)
heart processTyrosine-protein kinase FynHomo sapiens (human)
protein phosphorylationTyrosine-protein kinase FynHomo sapiens (human)
calcium ion transportTyrosine-protein kinase FynHomo sapiens (human)
G protein-coupled glutamate receptor signaling pathwayTyrosine-protein kinase FynHomo sapiens (human)
axon guidanceTyrosine-protein kinase FynHomo sapiens (human)
learningTyrosine-protein kinase FynHomo sapiens (human)
feeding behaviorTyrosine-protein kinase FynHomo sapiens (human)
regulation of cell shapeTyrosine-protein kinase FynHomo sapiens (human)
gene expressionTyrosine-protein kinase FynHomo sapiens (human)
negative regulation of gene expressionTyrosine-protein kinase FynHomo sapiens (human)
negative regulation of hydrogen peroxide biosynthetic processTyrosine-protein kinase FynHomo sapiens (human)
positive regulation of neuron projection developmentTyrosine-protein kinase FynHomo sapiens (human)
protein ubiquitinationTyrosine-protein kinase FynHomo sapiens (human)
peptidyl-tyrosine phosphorylationTyrosine-protein kinase FynHomo sapiens (human)
protein catabolic processTyrosine-protein kinase FynHomo sapiens (human)
forebrain developmentTyrosine-protein kinase FynHomo sapiens (human)
T cell costimulationTyrosine-protein kinase FynHomo sapiens (human)
negative regulation of protein ubiquitinationTyrosine-protein kinase FynHomo sapiens (human)
intracellular signal transductionTyrosine-protein kinase FynHomo sapiens (human)
cellular response to platelet-derived growth factor stimulusTyrosine-protein kinase FynHomo sapiens (human)
Fc-gamma receptor signaling pathway involved in phagocytosisTyrosine-protein kinase FynHomo sapiens (human)
negative regulation of protein catabolic processTyrosine-protein kinase FynHomo sapiens (human)
positive regulation of tyrosine phosphorylation of STAT proteinTyrosine-protein kinase FynHomo sapiens (human)
response to ethanolTyrosine-protein kinase FynHomo sapiens (human)
vascular endothelial growth factor receptor signaling pathwayTyrosine-protein kinase FynHomo sapiens (human)
ephrin receptor signaling pathwayTyrosine-protein kinase FynHomo sapiens (human)
dendrite morphogenesisTyrosine-protein kinase FynHomo sapiens (human)
regulation of peptidyl-tyrosine phosphorylationTyrosine-protein kinase FynHomo sapiens (human)
activated T cell proliferationTyrosine-protein kinase FynHomo sapiens (human)
modulation of chemical synaptic transmissionTyrosine-protein kinase FynHomo sapiens (human)
T cell receptor signaling pathwayTyrosine-protein kinase FynHomo sapiens (human)
leukocyte migrationTyrosine-protein kinase FynHomo sapiens (human)
detection of mechanical stimulus involved in sensory perception of painTyrosine-protein kinase FynHomo sapiens (human)
cellular response to hydrogen peroxideTyrosine-protein kinase FynHomo sapiens (human)
cellular response to transforming growth factor beta stimulusTyrosine-protein kinase FynHomo sapiens (human)
positive regulation of protein targeting to membraneTyrosine-protein kinase FynHomo sapiens (human)
dendritic spine maintenanceTyrosine-protein kinase FynHomo sapiens (human)
positive regulation of protein localization to nucleusTyrosine-protein kinase FynHomo sapiens (human)
regulation of glutamate receptor signaling pathwayTyrosine-protein kinase FynHomo sapiens (human)
negative regulation of oxidative stress-induced intrinsic apoptotic signaling pathwayTyrosine-protein kinase FynHomo sapiens (human)
negative regulation of dendritic spine maintenanceTyrosine-protein kinase FynHomo sapiens (human)
response to amyloid-betaTyrosine-protein kinase FynHomo sapiens (human)
cellular response to amyloid-betaTyrosine-protein kinase FynHomo sapiens (human)
cellular response to L-glutamateTyrosine-protein kinase FynHomo sapiens (human)
cellular response to glycineTyrosine-protein kinase FynHomo sapiens (human)
positive regulation of protein localization to membraneTyrosine-protein kinase FynHomo sapiens (human)
regulation of calcium ion import across plasma membraneTyrosine-protein kinase FynHomo sapiens (human)
positive regulation of cysteine-type endopeptidase activityTyrosine-protein kinase FynHomo sapiens (human)
innate immune responseTyrosine-protein kinase FynHomo sapiens (human)
cell differentiationTyrosine-protein kinase FynHomo sapiens (human)
cell surface receptor protein tyrosine kinase signaling pathwayTyrosine-protein kinase FynHomo sapiens (human)
lipid metabolic processPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
phospholipid metabolic processPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
apoptotic processPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
negative regulation of cell population proliferationPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
positive regulation of macrophage derived foam cell differentiationPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
arachidonic acid metabolic processPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
negative regulation of cell migrationPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
prostate gland developmentPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
regulation of epithelial cell differentiationPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
positive regulation of chemokine productionPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
positive regulation of peroxisome proliferator activated receptor signaling pathwayPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
positive regulation of keratinocyte differentiationPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
negative regulation of cell cyclePolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
negative regulation of growthPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
hepoxilin biosynthetic processPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
endocannabinoid signaling pathwayPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
cannabinoid biosynthetic processPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
lipoxin A4 biosynthetic processPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
linoleic acid metabolic processPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
lipid oxidationPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
lipoxygenase pathwayPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
xenobiotic metabolic processATP-binding cassette sub-family C member 3Homo sapiens (human)
xenobiotic transmembrane transportATP-binding cassette sub-family C member 3Homo sapiens (human)
bile acid and bile salt transportATP-binding cassette sub-family C member 3Homo sapiens (human)
glucuronoside transportATP-binding cassette sub-family C member 3Homo sapiens (human)
xenobiotic transportATP-binding cassette sub-family C member 3Homo sapiens (human)
transmembrane transportATP-binding cassette sub-family C member 3Homo sapiens (human)
leukotriene transportATP-binding cassette sub-family C member 3Homo sapiens (human)
monoatomic anion transmembrane transportATP-binding cassette sub-family C member 3Homo sapiens (human)
transport across blood-brain barrierATP-binding cassette sub-family C member 3Homo sapiens (human)
prostaglandin secretionMultidrug resistance-associated protein 4Homo sapiens (human)
cilium assemblyMultidrug resistance-associated protein 4Homo sapiens (human)
platelet degranulationMultidrug resistance-associated protein 4Homo sapiens (human)
xenobiotic metabolic processMultidrug resistance-associated protein 4Homo sapiens (human)
xenobiotic transmembrane transportMultidrug resistance-associated protein 4Homo sapiens (human)
bile acid and bile salt transportMultidrug resistance-associated protein 4Homo sapiens (human)
prostaglandin transportMultidrug resistance-associated protein 4Homo sapiens (human)
urate transportMultidrug resistance-associated protein 4Homo sapiens (human)
glutathione transmembrane transportMultidrug resistance-associated protein 4Homo sapiens (human)
transmembrane transportMultidrug resistance-associated protein 4Homo sapiens (human)
cAMP transportMultidrug resistance-associated protein 4Homo sapiens (human)
leukotriene transportMultidrug resistance-associated protein 4Homo sapiens (human)
monoatomic anion transmembrane transportMultidrug resistance-associated protein 4Homo sapiens (human)
export across plasma membraneMultidrug resistance-associated protein 4Homo sapiens (human)
transport across blood-brain barrierMultidrug resistance-associated protein 4Homo sapiens (human)
guanine nucleotide transmembrane transportMultidrug resistance-associated protein 4Homo sapiens (human)
fatty acid metabolic processBile salt export pumpHomo sapiens (human)
bile acid biosynthetic processBile salt export pumpHomo sapiens (human)
xenobiotic metabolic processBile salt export pumpHomo sapiens (human)
xenobiotic transmembrane transportBile salt export pumpHomo sapiens (human)
response to oxidative stressBile salt export pumpHomo sapiens (human)
bile acid metabolic processBile salt export pumpHomo sapiens (human)
response to organic cyclic compoundBile salt export pumpHomo sapiens (human)
bile acid and bile salt transportBile salt export pumpHomo sapiens (human)
canalicular bile acid transportBile salt export pumpHomo sapiens (human)
protein ubiquitinationBile salt export pumpHomo sapiens (human)
regulation of fatty acid beta-oxidationBile salt export pumpHomo sapiens (human)
carbohydrate transmembrane transportBile salt export pumpHomo sapiens (human)
bile acid signaling pathwayBile salt export pumpHomo sapiens (human)
cholesterol homeostasisBile salt export pumpHomo sapiens (human)
response to estrogenBile salt export pumpHomo sapiens (human)
response to ethanolBile salt export pumpHomo sapiens (human)
xenobiotic export from cellBile salt export pumpHomo sapiens (human)
lipid homeostasisBile salt export pumpHomo sapiens (human)
phospholipid homeostasisBile salt export pumpHomo sapiens (human)
positive regulation of bile acid secretionBile salt export pumpHomo sapiens (human)
regulation of bile acid metabolic processBile salt export pumpHomo sapiens (human)
transmembrane transportBile salt export pumpHomo sapiens (human)
cell surface receptor signaling pathway via JAK-STATInterferon betaHomo sapiens (human)
response to exogenous dsRNAInterferon betaHomo sapiens (human)
B cell activation involved in immune responseInterferon betaHomo sapiens (human)
cell surface receptor signaling pathwayInterferon betaHomo sapiens (human)
cell surface receptor signaling pathway via JAK-STATInterferon betaHomo sapiens (human)
response to virusInterferon betaHomo sapiens (human)
positive regulation of autophagyInterferon betaHomo sapiens (human)
cytokine-mediated signaling pathwayInterferon betaHomo sapiens (human)
natural killer cell activationInterferon betaHomo sapiens (human)
positive regulation of peptidyl-serine phosphorylation of STAT proteinInterferon betaHomo sapiens (human)
cellular response to interferon-betaInterferon betaHomo sapiens (human)
B cell proliferationInterferon betaHomo sapiens (human)
negative regulation of viral genome replicationInterferon betaHomo sapiens (human)
innate immune responseInterferon betaHomo sapiens (human)
positive regulation of innate immune responseInterferon betaHomo sapiens (human)
regulation of MHC class I biosynthetic processInterferon betaHomo sapiens (human)
negative regulation of T cell differentiationInterferon betaHomo sapiens (human)
positive regulation of transcription by RNA polymerase IIInterferon betaHomo sapiens (human)
defense response to virusInterferon betaHomo sapiens (human)
type I interferon-mediated signaling pathwayInterferon betaHomo sapiens (human)
neuron cellular homeostasisInterferon betaHomo sapiens (human)
cellular response to exogenous dsRNAInterferon betaHomo sapiens (human)
cellular response to virusInterferon betaHomo sapiens (human)
negative regulation of Lewy body formationInterferon betaHomo sapiens (human)
negative regulation of T-helper 2 cell cytokine productionInterferon betaHomo sapiens (human)
positive regulation of apoptotic signaling pathwayInterferon betaHomo sapiens (human)
response to exogenous dsRNAInterferon betaHomo sapiens (human)
B cell differentiationInterferon betaHomo sapiens (human)
natural killer cell activation involved in immune responseInterferon betaHomo sapiens (human)
adaptive immune responseInterferon betaHomo sapiens (human)
T cell activation involved in immune responseInterferon betaHomo sapiens (human)
humoral immune responseInterferon betaHomo sapiens (human)
positive regulation of T cell mediated cytotoxicityHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
adaptive immune responseHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-independentHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
regulation of T cell anergyHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
defense responseHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
immune responseHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
detection of bacteriumHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
regulation of interleukin-12 productionHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
regulation of interleukin-6 productionHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
protection from natural killer cell mediated cytotoxicityHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
innate immune responseHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
regulation of dendritic cell differentiationHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
antigen processing and presentation of endogenous peptide antigen via MHC class IbHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
inositol phosphate metabolic processInositol hexakisphosphate kinase 1Homo sapiens (human)
phosphatidylinositol phosphate biosynthetic processInositol hexakisphosphate kinase 1Homo sapiens (human)
negative regulation of cold-induced thermogenesisInositol hexakisphosphate kinase 1Homo sapiens (human)
inositol phosphate biosynthetic processInositol hexakisphosphate kinase 1Homo sapiens (human)
xenobiotic metabolic processCanalicular multispecific organic anion transporter 1Homo sapiens (human)
xenobiotic transmembrane transportCanalicular multispecific organic anion transporter 1Homo sapiens (human)
negative regulation of gene expressionCanalicular multispecific organic anion transporter 1Homo sapiens (human)
bile acid and bile salt transportCanalicular multispecific organic anion transporter 1Homo sapiens (human)
bilirubin transportCanalicular multispecific organic anion transporter 1Homo sapiens (human)
heme catabolic processCanalicular multispecific organic anion transporter 1Homo sapiens (human)
xenobiotic export from cellCanalicular multispecific organic anion transporter 1Homo sapiens (human)
transmembrane transportCanalicular multispecific organic anion transporter 1Homo sapiens (human)
transepithelial transportCanalicular multispecific organic anion transporter 1Homo sapiens (human)
leukotriene transportCanalicular multispecific organic anion transporter 1Homo sapiens (human)
monoatomic anion transmembrane transportCanalicular multispecific organic anion transporter 1Homo sapiens (human)
transport across blood-brain barrierCanalicular multispecific organic anion transporter 1Homo sapiens (human)
xenobiotic transport across blood-brain barrierCanalicular multispecific organic anion transporter 1Homo sapiens (human)
[Information is prepared from geneontology information from the June-17-2024 release]

Molecular Functions (85)

Processvia Protein(s)Taxonomy
metal ion bindingLysine-specific demethylase 4EHomo sapiens (human)
histone H3K9me2/H3K9me3 demethylase activityLysine-specific demethylase 4EHomo sapiens (human)
histone H3K9 demethylase activityLysine-specific demethylase 4EHomo sapiens (human)
phosphotyrosine residue bindingTyrosine-protein kinase LckHomo sapiens (human)
protein tyrosine kinase activityTyrosine-protein kinase LckHomo sapiens (human)
non-membrane spanning protein tyrosine kinase activityTyrosine-protein kinase LckHomo sapiens (human)
protein serine/threonine phosphatase activityTyrosine-protein kinase LckHomo sapiens (human)
protein bindingTyrosine-protein kinase LckHomo sapiens (human)
ATP bindingTyrosine-protein kinase LckHomo sapiens (human)
phospholipase activator activityTyrosine-protein kinase LckHomo sapiens (human)
protein kinase bindingTyrosine-protein kinase LckHomo sapiens (human)
protein phosphatase bindingTyrosine-protein kinase LckHomo sapiens (human)
SH2 domain bindingTyrosine-protein kinase LckHomo sapiens (human)
T cell receptor bindingTyrosine-protein kinase LckHomo sapiens (human)
CD4 receptor bindingTyrosine-protein kinase LckHomo sapiens (human)
CD8 receptor bindingTyrosine-protein kinase LckHomo sapiens (human)
identical protein bindingTyrosine-protein kinase LckHomo sapiens (human)
phospholipase bindingTyrosine-protein kinase LckHomo sapiens (human)
phosphatidylinositol 3-kinase bindingTyrosine-protein kinase LckHomo sapiens (human)
ATPase bindingTyrosine-protein kinase LckHomo sapiens (human)
signaling receptor bindingTyrosine-protein kinase LckHomo sapiens (human)
protein tyrosine kinase activityTyrosine-protein kinase FynHomo sapiens (human)
non-membrane spanning protein tyrosine kinase activityTyrosine-protein kinase FynHomo sapiens (human)
protein bindingTyrosine-protein kinase FynHomo sapiens (human)
ATP bindingTyrosine-protein kinase FynHomo sapiens (human)
phospholipase activator activityTyrosine-protein kinase FynHomo sapiens (human)
enzyme bindingTyrosine-protein kinase FynHomo sapiens (human)
type 5 metabotropic glutamate receptor bindingTyrosine-protein kinase FynHomo sapiens (human)
identical protein bindingTyrosine-protein kinase FynHomo sapiens (human)
alpha-tubulin bindingTyrosine-protein kinase FynHomo sapiens (human)
phospholipase bindingTyrosine-protein kinase FynHomo sapiens (human)
transmembrane transporter bindingTyrosine-protein kinase FynHomo sapiens (human)
metal ion bindingTyrosine-protein kinase FynHomo sapiens (human)
ephrin receptor bindingTyrosine-protein kinase FynHomo sapiens (human)
tau protein bindingTyrosine-protein kinase FynHomo sapiens (human)
tau-protein kinase activityTyrosine-protein kinase FynHomo sapiens (human)
growth factor receptor bindingTyrosine-protein kinase FynHomo sapiens (human)
scaffold protein bindingTyrosine-protein kinase FynHomo sapiens (human)
disordered domain specific bindingTyrosine-protein kinase FynHomo sapiens (human)
signaling receptor bindingTyrosine-protein kinase FynHomo sapiens (human)
iron ion bindingPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
calcium ion bindingPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
protein bindingPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
lipid bindingPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
linoleate 13S-lipoxygenase activityPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
arachidonate 8(S)-lipoxygenase activityPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
arachidonate 15-lipoxygenase activityPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
linoleate 9S-lipoxygenase activityPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
ATP bindingATP-binding cassette sub-family C member 3Homo sapiens (human)
ABC-type xenobiotic transporter activityATP-binding cassette sub-family C member 3Homo sapiens (human)
glucuronoside transmembrane transporter activityATP-binding cassette sub-family C member 3Homo sapiens (human)
ABC-type glutathione S-conjugate transporter activityATP-binding cassette sub-family C member 3Homo sapiens (human)
ABC-type bile acid transporter activityATP-binding cassette sub-family C member 3Homo sapiens (human)
ATP hydrolysis activityATP-binding cassette sub-family C member 3Homo sapiens (human)
ATPase-coupled transmembrane transporter activityATP-binding cassette sub-family C member 3Homo sapiens (human)
xenobiotic transmembrane transporter activityATP-binding cassette sub-family C member 3Homo sapiens (human)
ATPase-coupled inorganic anion transmembrane transporter activityATP-binding cassette sub-family C member 3Homo sapiens (human)
icosanoid transmembrane transporter activityATP-binding cassette sub-family C member 3Homo sapiens (human)
ABC-type transporter activityATP-binding cassette sub-family C member 3Homo sapiens (human)
guanine nucleotide transmembrane transporter activityMultidrug resistance-associated protein 4Homo sapiens (human)
protein bindingMultidrug resistance-associated protein 4Homo sapiens (human)
ATP bindingMultidrug resistance-associated protein 4Homo sapiens (human)
ABC-type xenobiotic transporter activityMultidrug resistance-associated protein 4Homo sapiens (human)
prostaglandin transmembrane transporter activityMultidrug resistance-associated protein 4Homo sapiens (human)
urate transmembrane transporter activityMultidrug resistance-associated protein 4Homo sapiens (human)
purine nucleotide transmembrane transporter activityMultidrug resistance-associated protein 4Homo sapiens (human)
ABC-type glutathione S-conjugate transporter activityMultidrug resistance-associated protein 4Homo sapiens (human)
ABC-type bile acid transporter activityMultidrug resistance-associated protein 4Homo sapiens (human)
efflux transmembrane transporter activityMultidrug resistance-associated protein 4Homo sapiens (human)
15-hydroxyprostaglandin dehydrogenase (NAD+) activityMultidrug resistance-associated protein 4Homo sapiens (human)
ATP hydrolysis activityMultidrug resistance-associated protein 4Homo sapiens (human)
glutathione transmembrane transporter activityMultidrug resistance-associated protein 4Homo sapiens (human)
ATPase-coupled transmembrane transporter activityMultidrug resistance-associated protein 4Homo sapiens (human)
xenobiotic transmembrane transporter activityMultidrug resistance-associated protein 4Homo sapiens (human)
ATPase-coupled inorganic anion transmembrane transporter activityMultidrug resistance-associated protein 4Homo sapiens (human)
ABC-type transporter activityMultidrug resistance-associated protein 4Homo sapiens (human)
protein bindingBile salt export pumpHomo sapiens (human)
ATP bindingBile salt export pumpHomo sapiens (human)
ABC-type xenobiotic transporter activityBile salt export pumpHomo sapiens (human)
bile acid transmembrane transporter activityBile salt export pumpHomo sapiens (human)
canalicular bile acid transmembrane transporter activityBile salt export pumpHomo sapiens (human)
carbohydrate transmembrane transporter activityBile salt export pumpHomo sapiens (human)
ABC-type bile acid transporter activityBile salt export pumpHomo sapiens (human)
ATP hydrolysis activityBile salt export pumpHomo sapiens (human)
cytokine activityInterferon betaHomo sapiens (human)
cytokine receptor bindingInterferon betaHomo sapiens (human)
type I interferon receptor bindingInterferon betaHomo sapiens (human)
protein bindingInterferon betaHomo sapiens (human)
chloramphenicol O-acetyltransferase activityInterferon betaHomo sapiens (human)
TAP bindingHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
signaling receptor bindingHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
protein bindingHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
peptide antigen bindingHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
TAP bindingHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
protein-folding chaperone bindingHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
3'-5'-RNA exonuclease activityReplicase polyprotein 1abSevere acute respiratory syndrome coronavirus 2
RNA-dependent RNA polymerase activityReplicase polyprotein 1abSevere acute respiratory syndrome coronavirus 2
cysteine-type endopeptidase activityReplicase polyprotein 1abSevere acute respiratory syndrome coronavirus 2
mRNA 5'-cap (guanine-N7-)-methyltransferase activityReplicase polyprotein 1abSevere acute respiratory syndrome coronavirus 2
mRNA (nucleoside-2'-O-)-methyltransferase activityReplicase polyprotein 1abSevere acute respiratory syndrome coronavirus 2
mRNA guanylyltransferase activityReplicase polyprotein 1abSevere acute respiratory syndrome coronavirus 2
RNA endonuclease activity, producing 3'-phosphomonoestersReplicase polyprotein 1abSevere acute respiratory syndrome coronavirus 2
ISG15-specific peptidase activityReplicase polyprotein 1abSevere acute respiratory syndrome coronavirus 2
5'-3' RNA helicase activityReplicase polyprotein 1abSevere acute respiratory syndrome coronavirus 2
protein guanylyltransferase activityReplicase polyprotein 1abSevere acute respiratory syndrome coronavirus 2
inositol-1,3,4,5,6-pentakisphosphate kinase activityInositol hexakisphosphate kinase 1Homo sapiens (human)
inositol hexakisphosphate kinase activityInositol hexakisphosphate kinase 1Homo sapiens (human)
inositol heptakisphosphate kinase activityInositol hexakisphosphate kinase 1Homo sapiens (human)
inositol hexakisphosphate 5-kinase activityInositol hexakisphosphate kinase 1Homo sapiens (human)
protein bindingInositol hexakisphosphate kinase 1Homo sapiens (human)
ATP bindingInositol hexakisphosphate kinase 1Homo sapiens (human)
inositol hexakisphosphate 1-kinase activityInositol hexakisphosphate kinase 1Homo sapiens (human)
inositol hexakisphosphate 3-kinase activityInositol hexakisphosphate kinase 1Homo sapiens (human)
inositol 5-diphosphate pentakisphosphate 5-kinase activityInositol hexakisphosphate kinase 1Homo sapiens (human)
inositol diphosphate tetrakisphosphate kinase activityInositol hexakisphosphate kinase 1Homo sapiens (human)
protein bindingCanalicular multispecific organic anion transporter 1Homo sapiens (human)
ATP bindingCanalicular multispecific organic anion transporter 1Homo sapiens (human)
organic anion transmembrane transporter activityCanalicular multispecific organic anion transporter 1Homo sapiens (human)
ABC-type xenobiotic transporter activityCanalicular multispecific organic anion transporter 1Homo sapiens (human)
bilirubin transmembrane transporter activityCanalicular multispecific organic anion transporter 1Homo sapiens (human)
ABC-type glutathione S-conjugate transporter activityCanalicular multispecific organic anion transporter 1Homo sapiens (human)
ATP hydrolysis activityCanalicular multispecific organic anion transporter 1Homo sapiens (human)
ATPase-coupled transmembrane transporter activityCanalicular multispecific organic anion transporter 1Homo sapiens (human)
xenobiotic transmembrane transporter activityCanalicular multispecific organic anion transporter 1Homo sapiens (human)
ATPase-coupled inorganic anion transmembrane transporter activityCanalicular multispecific organic anion transporter 1Homo sapiens (human)
ABC-type transporter activityCanalicular multispecific organic anion transporter 1Homo sapiens (human)
[Information is prepared from geneontology information from the June-17-2024 release]

Ceullar Components (50)

Processvia Protein(s)Taxonomy
nucleusLysine-specific demethylase 4EHomo sapiens (human)
nucleoplasmLysine-specific demethylase 4EHomo sapiens (human)
chromatinLysine-specific demethylase 4EHomo sapiens (human)
nucleusLysine-specific demethylase 4EHomo sapiens (human)
pericentriolar materialTyrosine-protein kinase LckHomo sapiens (human)
immunological synapseTyrosine-protein kinase LckHomo sapiens (human)
cytosolTyrosine-protein kinase LckHomo sapiens (human)
plasma membraneTyrosine-protein kinase LckHomo sapiens (human)
membrane raftTyrosine-protein kinase LckHomo sapiens (human)
extracellular exosomeTyrosine-protein kinase LckHomo sapiens (human)
plasma membraneTyrosine-protein kinase LckHomo sapiens (human)
membrane raftTyrosine-protein kinase FynHomo sapiens (human)
dendriteTyrosine-protein kinase FynHomo sapiens (human)
nucleusTyrosine-protein kinase FynHomo sapiens (human)
mitochondrionTyrosine-protein kinase FynHomo sapiens (human)
endosomeTyrosine-protein kinase FynHomo sapiens (human)
cytosolTyrosine-protein kinase FynHomo sapiens (human)
actin filamentTyrosine-protein kinase FynHomo sapiens (human)
plasma membraneTyrosine-protein kinase FynHomo sapiens (human)
postsynaptic densityTyrosine-protein kinase FynHomo sapiens (human)
dendriteTyrosine-protein kinase FynHomo sapiens (human)
perikaryonTyrosine-protein kinase FynHomo sapiens (human)
cell bodyTyrosine-protein kinase FynHomo sapiens (human)
membrane raftTyrosine-protein kinase FynHomo sapiens (human)
perinuclear region of cytoplasmTyrosine-protein kinase FynHomo sapiens (human)
perinuclear endoplasmic reticulumTyrosine-protein kinase FynHomo sapiens (human)
glial cell projectionTyrosine-protein kinase FynHomo sapiens (human)
Schaffer collateral - CA1 synapseTyrosine-protein kinase FynHomo sapiens (human)
plasma membraneTyrosine-protein kinase FynHomo sapiens (human)
nucleusPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
cytosolPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
cytoskeletonPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
plasma membranePolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
adherens junctionPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
focal adhesionPolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
membranePolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
extracellular exosomePolyunsaturated fatty acid lipoxygenase ALOX15BHomo sapiens (human)
plasma membraneATP-binding cassette sub-family C member 3Homo sapiens (human)
basal plasma membraneATP-binding cassette sub-family C member 3Homo sapiens (human)
basolateral plasma membraneATP-binding cassette sub-family C member 3Homo sapiens (human)
membraneATP-binding cassette sub-family C member 3Homo sapiens (human)
nucleolusMultidrug resistance-associated protein 4Homo sapiens (human)
Golgi apparatusMultidrug resistance-associated protein 4Homo sapiens (human)
plasma membraneMultidrug resistance-associated protein 4Homo sapiens (human)
membraneMultidrug resistance-associated protein 4Homo sapiens (human)
basolateral plasma membraneMultidrug resistance-associated protein 4Homo sapiens (human)
apical plasma membraneMultidrug resistance-associated protein 4Homo sapiens (human)
platelet dense granule membraneMultidrug resistance-associated protein 4Homo sapiens (human)
external side of apical plasma membraneMultidrug resistance-associated protein 4Homo sapiens (human)
plasma membraneMultidrug resistance-associated protein 4Homo sapiens (human)
basolateral plasma membraneBile salt export pumpHomo sapiens (human)
Golgi membraneBile salt export pumpHomo sapiens (human)
endosomeBile salt export pumpHomo sapiens (human)
plasma membraneBile salt export pumpHomo sapiens (human)
cell surfaceBile salt export pumpHomo sapiens (human)
apical plasma membraneBile salt export pumpHomo sapiens (human)
intercellular canaliculusBile salt export pumpHomo sapiens (human)
intracellular canaliculusBile salt export pumpHomo sapiens (human)
recycling endosomeBile salt export pumpHomo sapiens (human)
recycling endosome membraneBile salt export pumpHomo sapiens (human)
extracellular exosomeBile salt export pumpHomo sapiens (human)
membraneBile salt export pumpHomo sapiens (human)
extracellular spaceInterferon betaHomo sapiens (human)
extracellular regionInterferon betaHomo sapiens (human)
Golgi membraneHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
endoplasmic reticulumHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
Golgi apparatusHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
plasma membraneHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
cell surfaceHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
ER to Golgi transport vesicle membraneHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
membraneHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
secretory granule membraneHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
phagocytic vesicle membraneHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
early endosome membraneHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
recycling endosome membraneHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
extracellular exosomeHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
lumenal side of endoplasmic reticulum membraneHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
MHC class I protein complexHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
extracellular spaceHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
external side of plasma membraneHLA class I histocompatibility antigen, B alpha chain Homo sapiens (human)
double membrane vesicle viral factory outer membraneReplicase polyprotein 1abSevere acute respiratory syndrome coronavirus 2
plasma membraneGamma-aminobutyric acid receptor subunit gamma-2Rattus norvegicus (Norway rat)
plasma membraneGamma-aminobutyric acid receptor subunit alpha-1Rattus norvegicus (Norway rat)
plasma membraneGamma-aminobutyric acid receptor subunit beta-2Rattus norvegicus (Norway rat)
fibrillar centerInositol hexakisphosphate kinase 1Homo sapiens (human)
nucleoplasmInositol hexakisphosphate kinase 1Homo sapiens (human)
cytosolInositol hexakisphosphate kinase 1Homo sapiens (human)
nucleusInositol hexakisphosphate kinase 1Homo sapiens (human)
cytoplasmInositol hexakisphosphate kinase 1Homo sapiens (human)
plasma membraneCanalicular multispecific organic anion transporter 1Homo sapiens (human)
cell surfaceCanalicular multispecific organic anion transporter 1Homo sapiens (human)
apical plasma membraneCanalicular multispecific organic anion transporter 1Homo sapiens (human)
intercellular canaliculusCanalicular multispecific organic anion transporter 1Homo sapiens (human)
apical plasma membraneCanalicular multispecific organic anion transporter 1Homo sapiens (human)
[Information is prepared from geneontology information from the June-17-2024 release]

Bioassays (106)

Assay IDTitleYearJournalArticle
AID539464Solubility of the compound in 0.1 M phosphate buffer at 600 uM at pH 7.4 after 24 hrs by LC/MS/MS analysis2010Bioorganic & medicinal chemistry letters, Dec-15, Volume: 20, Issue:24
Experimental solubility profiling of marketed CNS drugs, exploring solubility limit of CNS discovery candidate.
AID524795Antiplasmodial activity against Plasmodium falciparum HB3 after 72 hrs by SYBR green assay2009Nature chemical biology, Oct, Volume: 5, Issue:10
Genetic mapping of targets mediating differential chemical phenotypes in Plasmodium falciparum.
AID1079947Comments (NB not yet translated). [column 'COMMENTAIRES' in source]
AID1079944Benign tumor, proven histopathologically. Value is number of references indexed. [column 'T.BEN' in source]
AID588209Literature-mined public compounds from Greene et al multi-species hepatotoxicity modelling dataset2010Chemical research in toxicology, Jul-19, Volume: 23, Issue:7
Developing structure-activity relationships for the prediction of hepatotoxicity.
AID1079943Malignant tumor, proven histopathologically. Value is number of references indexed. [column 'T.MAL' in source]
AID1079949Proposed mechanism(s) of liver damage. [column 'MEC' in source]
AID524790Antiplasmodial activity against Plasmodium falciparum 3D7 after 72 hrs by SYBR green assay2009Nature chemical biology, Oct, Volume: 5, Issue:10
Genetic mapping of targets mediating differential chemical phenotypes in Plasmodium falciparum.
AID625295Drug Induced Liver Injury Prediction System (DILIps) validation dataset; compound DILI positive/negative as observed in Pfizer data2011PLoS computational biology, Dec, Volume: 7, Issue:12
Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID524794Antiplasmodial activity against Plasmodium falciparum GB4 after 72 hrs by SYBR green assay2009Nature chemical biology, Oct, Volume: 5, Issue:10
Genetic mapping of targets mediating differential chemical phenotypes in Plasmodium falciparum.
AID524796Antiplasmodial activity against Plasmodium falciparum W2 after 72 hrs by SYBR green assay2009Nature chemical biology, Oct, Volume: 5, Issue:10
Genetic mapping of targets mediating differential chemical phenotypes in Plasmodium falciparum.
AID1079931Moderate liver toxicity, defined via clinical-chemistry results: ALT or AST serum activity 6 times the normal upper limit (N) or alkaline phosphatase serum activity of 1.7 N. Value is number of references indexed. [column 'BIOL' in source]
AID977602Inhibition of sodium fluorescein uptake in OATP1B3-transfected CHO cells at an equimolar substrate-inhibitor concentration of 10 uM2013Molecular pharmacology, Jun, Volume: 83, Issue:6
Structure-based identification of OATP1B1/3 inhibitors.
AID1079937Severe hepatitis, defined as possibly life-threatening liver failure or through clinical observations. Value is number of references indexed. [column 'MASS' in source]
AID1079932Highest frequency of moderate liver toxicity observed during clinical trials, expressed as a percentage. [column '% BIOL' in source]
AID524791Antiplasmodial activity against Plasmodium falciparum 7G8 after 72 hrs by SYBR green assay2009Nature chemical biology, Oct, Volume: 5, Issue:10
Genetic mapping of targets mediating differential chemical phenotypes in Plasmodium falciparum.
AID625294Drug Induced Liver Injury Prediction System (DILIps) validation dataset; compound DILI positive/negative as observed in O'Brien data2011PLoS computational biology, Dec, Volume: 7, Issue:12
Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID1079935Cytolytic liver toxicity, either proven histopathologically or where the ratio of maximal ALT or AST activity above normal to that of Alkaline Phosphatase is > 5 (see ACUTE). Value is number of references indexed. [column 'CYTOL' in source]
AID524793Antiplasmodial activity against Plasmodium falciparum Dd2 after 72 hrs by SYBR green assay2009Nature chemical biology, Oct, Volume: 5, Issue:10
Genetic mapping of targets mediating differential chemical phenotypes in Plasmodium falciparum.
AID371808Cytotoxicity against mouse HECa10 cells by MTT assay2009Bioorganic & medicinal chemistry letters, Jul-01, Volume: 19, Issue:13
Oxidation of carbidopa by tyrosinase and its effect on murine melanoma.
AID1079934Highest frequency of acute liver toxicity observed during clinical trials, expressed as a percentage. [column '% AIGUE' in source]
AID1079948Times to onset, minimal and maximal, observed in the indexed observations. [column 'DELAI' in source]
AID1073308Inhibition of HIV1 integrase/LEDGF-75 (unknown origin) interaction2014Journal of medicinal chemistry, Feb-13, Volume: 57, Issue:3
Inhibiting the HIV integration process: past, present, and the future.
AID1079936Choleostatic liver toxicity, either proven histopathologically or where the ratio of maximal ALT or AST activity above normal to that of Alkaline Phosphatase is < 2 (see ACUTE). Value is number of references indexed. [column 'CHOLE' in source]
AID1079946Presence of at least one case with successful reintroduction. [column 'REINT' in source]
AID604078Uncompetitive inhibition of JMJD2E relative to alpha-ketoglutarate2011Bioorganic & medicinal chemistry, Jun-15, Volume: 19, Issue:12
Inhibitors of histone demethylases.
AID1079933Acute liver toxicity defined via clinical observations and clear clinical-chemistry results: serum ALT or AST activity > 6 N or serum alkaline phosphatases activity > 1.7 N. This category includes cytolytic, choleostatic and mixed liver toxicity. Value is
AID1079940Granulomatous liver disease, proven histopathologically. Value is number of references indexed. [column 'GRAN' in source]
AID521220Inhibition of neurosphere proliferation of mouse neural precursor cells by MTT assay2007Nature chemical biology, May, Volume: 3, Issue:5
Chemical genetics reveals a complex functional ground state of neural stem cells.
AID977599Inhibition of sodium fluorescein uptake in OATP1B1-transfected CHO cells at an equimolar substrate-inhibitor concentration of 10 uM2013Molecular pharmacology, Jun, Volume: 83, Issue:6
Structure-based identification of OATP1B1/3 inhibitors.
AID1079941Liver damage due to vascular disease: peliosis hepatitis, hepatic veno-occlusive disease, Budd-Chiari syndrome. Value is number of references indexed. [column 'VASC' in source]
AID1079938Chronic liver disease either proven histopathologically, or through a chonic elevation of serum amino-transferase activity after 6 months. Value is number of references indexed. [column 'CHRON' in source]
AID1079945Animal toxicity known. [column 'TOXIC' in source]
AID1079939Cirrhosis, proven histopathologically. Value is number of references indexed. [column 'CIRRH' in source]
AID371806Cytotoxicity against mouse NIH/3T3 cells by MTT assay2009Bioorganic & medicinal chemistry letters, Jul-01, Volume: 19, Issue:13
Oxidation of carbidopa by tyrosinase and its effect on murine melanoma.
AID1079942Steatosis, proven histopathologically. Value is number of references indexed. [column 'STEAT' in source]
AID371805Cytotoxicity against mouse B16F10 cells at 250 uM after 48 hrs by MTT assay2009Bioorganic & medicinal chemistry letters, Jul-01, Volume: 19, Issue:13
Oxidation of carbidopa by tyrosinase and its effect on murine melanoma.
AID135327BBB penetration classification2000Journal of medicinal chemistry, Jun-01, Volume: 43, Issue:11
Predicting blood-brain barrier permeation from three-dimensional molecular structure.
AID625293Drug Induced Liver Injury Prediction System (DILIps) validation dataset; compound DILI positive/negative as observed in LTKB-BD2011PLoS computational biology, Dec, Volume: 7, Issue:12
Translating clinical findings into knowledge in drug safety evaluation--drug induced liver injury prediction system (DILIps).
AID588210Human drug-induced liver injury (DILI) modelling dataset from Ekins et al2010Drug metabolism and disposition: the biological fate of chemicals, Dec, Volume: 38, Issue:12
A predictive ligand-based Bayesian model for human drug-induced liver injury.
AID625276FDA Liver Toxicity Knowledge Base Benchmark Dataset (LTKB-BD) drugs of most concern for DILI2011Drug discovery today, Aug, Volume: 16, Issue:15-16
FDA-approved drug labeling for the study of drug-induced liver injury.
AID1508630Primary qHTS for small molecule stabilizers of the endoplasmic reticulum resident proteome: Secreted ER Calcium Modulated Protein (SERCaMP) assay2021Cell reports, 04-27, Volume: 35, Issue:4
A target-agnostic screen identifies approved drugs to stabilize the endoplasmic reticulum-resident proteome.
AID1347089qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for TC32 cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347154Primary screen GU AMC qHTS for Zika virus inhibitors2020Proceedings of the National Academy of Sciences of the United States of America, 12-08, Volume: 117, Issue:49
Therapeutic candidates for the Zika virus identified by a high-throughput screen for Zika protease inhibitors.
AID1347099qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for NB1643 cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1296008Cytotoxic Profiling of Annotated Libraries Using Quantitative High-Throughput Screening2020SLAS discovery : advancing life sciences R & D, 01, Volume: 25, Issue:1
Cytotoxic Profiling of Annotated and Diverse Chemical Libraries Using Quantitative High-Throughput Screening.
AID1347098qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-SH cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347096qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for U-2 OS cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347097qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Saos-2 cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347083qHTS for Inhibitors of the Functional Ribonucleoprotein Complex (vRNP) of Lassa (LASV) Arenavirus: Viability assay - alamar blue signal for LASV Primary Screen2020Antiviral research, 01, Volume: 173A cell-based, infectious-free, platform to identify inhibitors of lassa virus ribonucleoprotein (vRNP) activity.
AID1347094qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for BT-37 cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1346986P-glycoprotein substrates identified in KB-3-1 adenocarcinoma cell line, qHTS therapeutic library screen2019Molecular pharmacology, 11, Volume: 96, Issue:5
A High-Throughput Screen of a Library of Therapeutics Identifies Cytotoxic Substrates of P-glycoprotein.
AID1347102qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Rh18 cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347082qHTS for Inhibitors of the Functional Ribonucleoprotein Complex (vRNP) of Lassa (LASV) Arenavirus: LASV Primary Screen - GLuc reporter signal2020Antiviral research, 01, Volume: 173A cell-based, infectious-free, platform to identify inhibitors of lassa virus ribonucleoprotein (vRNP) activity.
AID1347104qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for RD cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347091qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SJ-GBM2 cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1346987P-glycoprotein substrates identified in KB-8-5-11 adenocarcinoma cell line, qHTS therapeutic library screen2019Molecular pharmacology, 11, Volume: 96, Issue:5
A High-Throughput Screen of a Library of Therapeutics Identifies Cytotoxic Substrates of P-glycoprotein.
AID1347090qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for DAOY cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347107qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Rh30 cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347108qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Rh41 cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347095qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for NB-EBc1 cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347103qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for OHS-50 cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347086qHTS for Inhibitors of the Functional Ribonucleoprotein Complex (vRNP) of Lymphocytic Choriomeningitis Arenaviruses (LCMV): LCMV Primary Screen - GLuc reporter signal2020Antiviral research, 01, Volume: 173A cell-based, infectious-free, platform to identify inhibitors of lassa virus ribonucleoprotein (vRNP) activity.
AID1347106qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for control Hh wild type fibroblast cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347101qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for BT-12 cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1745845Primary qHTS for Inhibitors of ATXN expression
AID1347092qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for A673 cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347093qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-MC cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347100qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for LAN-5 cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347105qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for MG 63 (6-TG R) cells2018Oncotarget, Jan-12, Volume: 9, Issue:4
Quantitative high-throughput phenotypic screening of pediatric cancer cell lines identifies multiple opportunities for drug repurposing.
AID1347411qHTS to identify inhibitors of the type 1 interferon - major histocompatibility complex class I in skeletal muscle: primary screen against the NCATS Mechanism Interrogation Plate v5.0 (MIPE) Libary2020ACS chemical biology, 07-17, Volume: 15, Issue:7
High-Throughput Screening to Identify Inhibitors of the Type I Interferon-Major Histocompatibility Complex Class I Pathway in Skeletal Muscle.
AID1159607Screen for inhibitors of RMI FANCM (MM2) intereaction2016Journal of biomolecular screening, Jul, Volume: 21, Issue:6
A High-Throughput Screening Strategy to Identify Protein-Protein Interaction Inhibitors That Block the Fanconi Anemia DNA Repair Pathway.
AID781330pKa (acid-base dissociation constant) as determined by potentiometric titration2014Pharmaceutical research, Apr, Volume: 31, Issue:4
Comparison of the accuracy of experimental and predicted pKa values of basic and acidic compounds.
AID1347154Primary screen GU AMC qHTS for Zika virus inhibitors2020Proceedings of the National Academy of Sciences of the United States of America, 12-08, Volume: 117, Issue:49
Therapeutic candidates for the Zika virus identified by a high-throughput screen for Zika protease inhibitors.
AID1508627Counterscreen qHTS for small molecule stabilizers of the endoplasmic reticulum resident proteome: GLuc-NoTag assay2021Cell reports, 04-27, Volume: 35, Issue:4
A target-agnostic screen identifies approved drugs to stabilize the endoplasmic reticulum-resident proteome.
AID1508628Confirmatory qHTS for small molecule stabilizers of the endoplasmic reticulum resident proteome: Secreted ER Calcium Modulated Protein (SERCaMP) assay2021Cell reports, 04-27, Volume: 35, Issue:4
A target-agnostic screen identifies approved drugs to stabilize the endoplasmic reticulum-resident proteome.
AID1508630Primary qHTS for small molecule stabilizers of the endoplasmic reticulum resident proteome: Secreted ER Calcium Modulated Protein (SERCaMP) assay2021Cell reports, 04-27, Volume: 35, Issue:4
A target-agnostic screen identifies approved drugs to stabilize the endoplasmic reticulum-resident proteome.
AID1508629Cell Viability qHTS for small molecule stabilizers of the endoplasmic reticulum resident proteome2021Cell reports, 04-27, Volume: 35, Issue:4
A target-agnostic screen identifies approved drugs to stabilize the endoplasmic reticulum-resident proteome.
AID1473741Inhibition of human MRP4 overexpressed in Sf9 cell membrane vesicles assessed as uptake of [3H]-estradiol-17beta-D-glucuronide in presence of ATP and GSH measured after 20 mins by membrane vesicle transport assay2013Toxicological sciences : an official journal of the Society of Toxicology, Nov, Volume: 136, Issue:1
A multifactorial approach to hepatobiliary transporter assessment enables improved therapeutic compound development.
AID1636356Drug activation in human Hep3B cells assessed as human CYP2C9-mediated drug metabolism-induced cytotoxicity measured as decrease in cell viability at 300 uM pre-incubated with BSO for 18 hrs followed by incubation with compound for 3 hrs in presence of NA2016Bioorganic & medicinal chemistry letters, 08-15, Volume: 26, Issue:16
Development of a cell viability assay to assess drug metabolite structure-toxicity relationships.
AID1474166Liver toxicity in human assessed as induction of drug-induced liver injury by measuring severity class index2016Drug discovery today, Apr, Volume: 21, Issue:4
DILIrank: the largest reference drug list ranked by the risk for developing drug-induced liver injury in humans.
AID1473739Inhibition of human MRP2 overexpressed in Sf9 cell membrane vesicles assessed as uptake of [3H]-estradiol-17beta-D-glucuronide in presence of ATP and GSH measured after 20 mins by membrane vesicle transport assay2013Toxicological sciences : an official journal of the Society of Toxicology, Nov, Volume: 136, Issue:1
A multifactorial approach to hepatobiliary transporter assessment enables improved therapeutic compound development.
AID1636440Drug activation in human Hep3B cells assessed as human CYP2D6-mediated drug metabolism-induced cytotoxicity measured as decrease in cell viability at 300 uM pre-incubated with BSO for 18 hrs followed by incubation with compound for 3 hrs in presence of NA2016Bioorganic & medicinal chemistry letters, 08-15, Volume: 26, Issue:16
Development of a cell viability assay to assess drug metabolite structure-toxicity relationships.
AID1474167Liver toxicity in human assessed as induction of drug-induced liver injury by measuring verified drug-induced liver injury concern status2016Drug discovery today, Apr, Volume: 21, Issue:4
DILIrank: the largest reference drug list ranked by the risk for developing drug-induced liver injury in humans.
AID1636357Drug activation in human Hep3B cells assessed as human CYP3A4-mediated drug metabolism-induced cytotoxicity measured as decrease in cell viability at 300 uM pre-incubated with BSO for 18 hrs followed by incubation with compound for 3 hrs in presence of NA2016Bioorganic & medicinal chemistry letters, 08-15, Volume: 26, Issue:16
Development of a cell viability assay to assess drug metabolite structure-toxicity relationships.
AID1473740Inhibition of human MRP3 overexpressed in Sf9 insect cell membrane vesicles assessed as uptake of [3H]-estradiol-17beta-D-glucuronide in presence of ATP and GSH measured after 10 mins by membrane vesicle transport assay2013Toxicological sciences : an official journal of the Society of Toxicology, Nov, Volume: 136, Issue:1
A multifactorial approach to hepatobiliary transporter assessment enables improved therapeutic compound development.
AID1449628Inhibition of human BSEP expressed in baculovirus transfected fall armyworm Sf21 cell membranes vesicles assessed as reduction in ATP-dependent [3H]-taurocholate transport into vesicles incubated for 5 mins by Topcount based rapid filtration method2012Drug metabolism and disposition: the biological fate of chemicals, Dec, Volume: 40, Issue:12
Mitigating the inhibition of human bile salt export pump by drugs: opportunities provided by physicochemical property modulation, in silico modeling, and structural modification.
AID1473738Inhibition of human BSEP overexpressed in Sf9 cell membrane vesicles assessed as uptake of [3H]-taurocholate in presence of ATP measured after 15 to 20 mins by membrane vesicle transport assay2013Toxicological sciences : an official journal of the Society of Toxicology, Nov, Volume: 136, Issue:1
A multifactorial approach to hepatobiliary transporter assessment enables improved therapeutic compound development.
AID504749qHTS profiling for inhibitors of Plasmodium falciparum proliferation2011Science (New York, N.Y.), Aug-05, Volume: 333, Issue:6043
Chemical genomic profiling for antimalarial therapies, response signatures, and molecular targets.
AID504810Antagonists of the Thyroid Stimulating Hormone Receptor: HTS campaign2010Endocrinology, Jul, Volume: 151, Issue:7
A small molecule inverse agonist for the human thyroid-stimulating hormone receptor.
AID504812Inverse Agonists of the Thyroid Stimulating Hormone Receptor: HTS campaign2010Endocrinology, Jul, Volume: 151, Issue:7
A small molecule inverse agonist for the human thyroid-stimulating hormone receptor.
AID588501High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Lethal Factor Protease, MLPCN compound set2010Current protocols in cytometry, Oct, Volume: Chapter 13Microsphere-based flow cytometry protease assays for use in protease activity detection and high-throughput screening.
AID588501High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Lethal Factor Protease, MLPCN compound set2006Cytometry. Part A : the journal of the International Society for Analytical Cytology, May, Volume: 69, Issue:5
Microsphere-based protease assays and screening application for lethal factor and factor Xa.
AID588501High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Lethal Factor Protease, MLPCN compound set2010Assay and drug development technologies, Feb, Volume: 8, Issue:1
High-throughput multiplex flow cytometry screening for botulinum neurotoxin type a light chain protease inhibitors.
AID588497High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Botulinum neurotoxin light chain F protease, MLPCN compound set2010Current protocols in cytometry, Oct, Volume: Chapter 13Microsphere-based flow cytometry protease assays for use in protease activity detection and high-throughput screening.
AID588497High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Botulinum neurotoxin light chain F protease, MLPCN compound set2006Cytometry. Part A : the journal of the International Society for Analytical Cytology, May, Volume: 69, Issue:5
Microsphere-based protease assays and screening application for lethal factor and factor Xa.
AID588497High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Botulinum neurotoxin light chain F protease, MLPCN compound set2010Assay and drug development technologies, Feb, Volume: 8, Issue:1
High-throughput multiplex flow cytometry screening for botulinum neurotoxin type a light chain protease inhibitors.
AID1745845Primary qHTS for Inhibitors of ATXN expression
AID651635Viability Counterscreen for Primary qHTS for Inhibitors of ATXN expression
AID588499High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Botulinum neurotoxin light chain A protease, MLPCN compound set2010Current protocols in cytometry, Oct, Volume: Chapter 13Microsphere-based flow cytometry protease assays for use in protease activity detection and high-throughput screening.
AID588499High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Botulinum neurotoxin light chain A protease, MLPCN compound set2006Cytometry. Part A : the journal of the International Society for Analytical Cytology, May, Volume: 69, Issue:5
Microsphere-based protease assays and screening application for lethal factor and factor Xa.
AID588499High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Botulinum neurotoxin light chain A protease, MLPCN compound set2010Assay and drug development technologies, Feb, Volume: 8, Issue:1
High-throughput multiplex flow cytometry screening for botulinum neurotoxin type a light chain protease inhibitors.
AID1296008Cytotoxic Profiling of Annotated Libraries Using Quantitative High-Throughput Screening2020SLAS discovery : advancing life sciences R & D, 01, Volume: 25, Issue:1
Cytotoxic Profiling of Annotated and Diverse Chemical Libraries Using Quantitative High-Throughput Screening.
AID1346986P-glycoprotein substrates identified in KB-3-1 adenocarcinoma cell line, qHTS therapeutic library screen2019Molecular pharmacology, 11, Volume: 96, Issue:5
A High-Throughput Screen of a Library of Therapeutics Identifies Cytotoxic Substrates of P-glycoprotein.
AID1346987P-glycoprotein substrates identified in KB-8-5-11 adenocarcinoma cell line, qHTS therapeutic library screen2019Molecular pharmacology, 11, Volume: 96, Issue:5
A High-Throughput Screen of a Library of Therapeutics Identifies Cytotoxic Substrates of P-glycoprotein.
AID1159550Human Phosphogluconate dehydrogenase (6PGD) Inhibitor Screening2015Nature cell biology, Nov, Volume: 17, Issue:11
6-Phosphogluconate dehydrogenase links oxidative PPP, lipogenesis and tumour growth by inhibiting LKB1-AMPK signalling.
[information is prepared from bioassay data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (2,443)

TimeframeStudies, This Drug (%)All Drugs %
pre-1990880 (36.02)18.7374
1990's509 (20.84)18.2507
2000's285 (11.67)29.6817
2010's564 (23.09)24.3611
2020's205 (8.39)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 104.52

According to the monthly volume, diversity, and competition of internet searches for this compound, as well the volume and growth of publications, there is estimated to be very strong demand-to-supply ratio for research on this compound.

MetricThis Compound (vs All)
Research Demand Index104.52 (24.57)
Research Supply Index2.40 (2.92)
Research Growth Index4.55 (4.65)
Search Engine Demand Index183.66 (26.88)
Search Engine Supply Index2.00 (0.95)

This Compound (104.52)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials0 (0.00%)5.53%
Trials0 (0.00%)5.53%
Trials0 (0.00%)5.53%
Trials465 (18.07%)5.53%
Reviews1 (7.69%)6.00%
Reviews0 (0.00%)6.00%
Reviews2 (13.33%)6.00%
Reviews189 (7.34%)6.00%
Case Studies0 (0.00%)4.05%
Case Studies0 (0.00%)4.05%
Case Studies0 (0.00%)4.05%
Case Studies430 (16.71%)4.05%
Observational0 (0.00%)0.25%
Observational0 (0.00%)0.25%
Observational0 (0.00%)0.25%
Observational33 (1.28%)0.25%
Other12 (92.31%)84.16%
Other10 (100.00%)84.16%
Other13 (86.67%)84.16%
Other1,457 (56.60%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Clinical Trials (170)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
An Open-Label, 12-Month Safety and Efficacy Study of Levodopa - Carbidopa Intestinal Gel in Levodopa-Responsive Subjects With Advanced Parkinson's Disease and Severe Motor Fluctuations Despite Optimized Treatment With Available Parkinson's Disease Medicat [NCT00335153]Phase 3354 participants (Actual)Interventional2008-01-31Completed
Duration of Motor Response After Administration of Experimental Levodopa/Carbidopa/Entacapone Treatment Regimens Compared to Standard Treatment (Stalevo®);a Randomised,Double-blind,Crossover,Multicentre,Single Dose Study in Patients With Parkinson?s Disea [NCT01296464]Phase 227 participants (Anticipated)Interventional2011-02-28Completed
A Phase 1 Single-Dose, Open-label, Sequential, Three-Period Crossover Study to Evaluate the Pharmacokinetics of WD-1603 Tablets in Healthy Subjects [NCT03761004]Phase 18 participants (Actual)Interventional2019-01-14Completed
A Dose-finding Study for Levodopa, Carbidopa and ODM-104 Test Formulations After Repeated Administration in Healthy Males [NCT03055936]Phase 156 participants (Actual)Interventional2017-02-21Completed
Clinical Study to Compare the Possible Safety and Efficacy of Pentoxifylline in Patients With Parkinson's Disease Treated With Conventional Treatment [NCT05962957]Phase 250 participants (Anticipated)Interventional2023-08-07Recruiting
Sustained Release Oral Formulation for Treatment of Parkinson's Disease [NCT05471609]Early Phase 16 participants (Anticipated)Interventional2023-12-01Not yet recruiting
A Placebo-Controlled Study To Evaluate The Safety And Efficacy Of IPX066 In Subjects With Parkinson's Disease [NCT00880620]Phase 3381 participants (Actual)Interventional2009-04-30Completed
[18F]F-DOPA Imaging in Patients With Autonomic Failure [NCT04246437]Phase 140 participants (Anticipated)Interventional2020-02-04Recruiting
Clock and Narcolepsy Genetic Variants and the Effects of Stalevo® (Levodopa/Carbidopa/Entacapone) on Sleep Disorders in Parkinson's Disease [NCT02452606]100 participants (Anticipated)Interventional2015-03-31Recruiting
An Open Label Phase 2 Study to Assess the Pharmacokinetics of the Accordion Pill Carbidopa-Levodopa Compared to Immediate Release Carbidopa-Levodopa in Patients With Parkinson's Disease [NCT03576638]Phase 212 participants (Anticipated)Interventional2018-07-31Not yet recruiting
An Open-label, Randomized 26-Week Study Comparing Levodopa-Carbidopa INteStInal Gel (LCIG) THerapy to Optimized Medical Treatment (OMT) on Non-Motor Symptoms (NMS) in Subjects With Advanced Parkinson's Disease - INSIGHTS Study [NCT02549092]Phase 389 participants (Actual)Interventional2015-10-26Completed
Study of the Efficacy of Co-administration of an NSAID With a Dopamine Agonist in the Alleviation of Acute Cutaneous Inflammatory Pain in Healthy Subjects [NCT02116790]Phase 20 participants (Actual)Interventional2014-05-31Withdrawn
Pharmacokinetics of Levodopa After Repeated Doses of Different Pellet Formulations; An Open, Randomized Study With Crossover Design in Healthy Male Subjects [NCT03140956]Phase 120 participants (Actual)Interventional2017-04-19Completed
A Long-term Health Economics Study of Intraduodenal Levodopa (Duodopa®) in Routine Care for Patients With Advanced Idiopathic Parkinson's Disease With Severe Motor Fluctuations and Hyper-/Dyskinesia [NCT00141518]Phase 477 participants (Actual)Interventional2006-03-31Completed
A Randomized, Double-Blind, Double-Dummy, Active-Controlled Study Comparing the Efficacy, Safety and Tolerability of ABBV-951 to Oral Carbidopa/Levodopa in Advanced Parkinson's Disease Patients [NCT04380142]Phase 3174 participants (Actual)Interventional2020-10-19Completed
1/2-Dopaminergic Dysfunction in Late-Life Depression (The D3 Study) [NCT04493320]Phase 45 participants (Actual)Interventional2021-02-10Terminated(stopped due to Study terminated by sponsor (NIMH))
Targeting Dopaminergic Mechanisms of Slowing to Improve Late Life Depression [NCT03761030]Phase 451 participants (Actual)Interventional2019-01-09Terminated(stopped due to The project end date was reached prior to the full sample enrollment)
A Single Period Investigation to Assess the Tolerability of Healthy Subjects to Oral Sinemet® (Levodopa/Carbidopa) Doses Administered Using a Divided Dose Approach [NCT02486432]Phase 16 participants (Actual)Interventional2015-04-30Completed
Neurobiological Principles Applied to the Rehabilitation of Stroke Patients [NCT00715520]33 participants (Actual)Interventional2007-04-30Completed
Kidney Dopamine Effects on Urinary Sodium Excretion in Postural Tachycardia Syndrome [NCT00685919]Phase 2/Phase 332 participants (Actual)Interventional2008-05-31Completed
Effects of the Serotonin Precursor, 5-hydroxytryptophan, in the Injured Human Spinal Cord [NCT04520178]Phase 2/Phase 330 participants (Anticipated)Interventional2020-07-01Recruiting
Gait Pattern Analysis in Neurological Disease [NCT02994719]120 participants (Anticipated)Observational2016-03-01Active, not recruiting
Research on Translational Outcomes of Alcohol (Project RETRO) [NCT04742348]Phase 40 participants (Actual)Interventional2023-02-28Withdrawn(stopped due to COVID-19 and expiration of funding)
A Three-Way Crossover Thorough QT/QTc Study to Evaluate the Electrocardiographic Effects of a Supratherapeutic Dose of Carbidopa in Healthy Subjects [NCT06161220]Phase 136 participants (Anticipated)Interventional2023-10-30Recruiting
An Open-label, Randomized 12 Week Study Comparing Efficacy of Levodopa-Carbidopa Intestinal Gel/Carbidopa-Levodopa Enteral Suspension and Optimized Medical Treatment on Dyskinesia in Subjects With Advanced Parkinson's Disease DYSCOVER (DYSkinesia COmparat [NCT02799381]Phase 363 participants (Actual)Interventional2017-02-09Completed
Neurobiological Drivers of Mobility Resilience: The Dopaminergic System [NCT04325503]Phase 1/Phase 214 participants (Actual)Interventional2019-10-18Completed
Pharmacokinetics of Levodopa, Carbidopa, 3-OMD and ODM-104 After Repeated Doses of Different Formulations: an Open, Randomised, Multicentre Study With Crossover Design in Healthy Males [NCT02312232]Phase 120 participants (Actual)Interventional2014-11-30Completed
A Phase I/II, Single-center, Randomized, Cross-over, Double-blind, Placebo-controlled Study Evaluating Safety, Tolerability and Pharmacokinetic Profile of Levodopa Following Administration of Subcutaneous Continuously-delivered Carbidopa Solution (ND0611) [NCT01229332]Phase 1/Phase 224 participants (Actual)Interventional2011-01-31Completed
An Exploratory Pharmacokinetic, Pharmacodynamic and Safety Study of XP21279 (With Lodosyn®) and Sinemet® in Parkinson's Disease Subjects With Motor Fluctuations [NCT00914602]Phase 1/Phase 214 participants (Actual)Interventional2009-05-31Completed
Effects of Pharmacological Dopamine Modulation on Motivation and Motor Function in Major Depression Characterized by Low-grade Inflammation. [NCT05909267]165 participants (Anticipated)Interventional2023-07-26Recruiting
A Phase 1, Open-Label Study to Assess the Pharmacokinetics, Pharmacodynamics, Safety and Tolerability of Repeated Doses of Opicapone, and Effect on Levodopa Pharmacokinetics in Subjects With Parkinson's Disease [NCT03496870]Phase 116 participants (Actual)Interventional2018-02-08Completed
Dopaminergic Modulation of Cognition and Psychomotor Function [NCT01218425]20 participants (Actual)Interventional2010-11-30Completed
A Randomized, Double-Blind, Double-Dummy, Efficacy, Safety and Tolerability Study of Levodopa - Carbidopa Intestinal Gel in Levodopa-Responsive Parkinson's Subjects Receiving Optimized Treatments With Parkinson Medicinal Products Who Continue to Experienc [NCT00357994]Phase 336 participants (Actual)Interventional2009-01-31Completed
An Open Label Extension Study of the Safety and Clinical Utility of IPX066 in Subjects With Parkinson's Disease [NCT01096186]Phase 3617 participants (Actual)Interventional2010-03-31Completed
Pilot Study of L-DOPA Safety and Tolerability in Patients With AMD, and Proof of Concept That L-DOPA Improves Surrogate Biomarkers in Patients With Moderate to Advanced AMD [NCT02873351]Phase 20 participants (Actual)Interventional2019-09-30Withdrawn(stopped due to Decided to do studies in patients with AMD)
A Phase 1 Study of the Safety and Pharmacokinetics (PK) of Levodopa Following Administration of CVT 301 (Levodopa Inhalation Powder) in Adults With Asthma [NCT02633007]Phase 125 participants (Actual)Interventional2015-12-31Completed
The Effect of L-Dopa on the Progression of Retinitis Pigmentosa [NCT02837640]Phase 250 participants (Anticipated)Interventional2016-06-30Recruiting
A Phase I/IIa, Single Dose, Single-centre, Randomized, Crossover, Double-blind, Placebo-controlled Study Evaluating Safety, Tolerability and Levodopa Plasma Concentration Following Administration of Subcutaneous Continuously-delivered Levodopa/Carbidopa S [NCT01725802]Phase 1/Phase 28 participants (Actual)Interventional2012-12-31Completed
Open-label, Two-treatment, 4-period Replicated Crossover Study in Healthy Subjects to Investigate the Plasma Pharmacokinetics of Levodopa and Carbidopa After Oral Administration of Single Doses of Two Fixed-dose Combination Products [NCT02116465]Phase 112 participants (Actual)Interventional2014-03-31Completed
Extension of Protocol 002, Carbidopa-levodopa in Neovascular Extension of Protocol 002, Carbidopa-levodopa in Neovascular AMD [NCT03197493]Phase 232 participants (Actual)Interventional2017-08-01Completed
Dopaminergic Therapy for Inflammation-Related Anhedonia in Depression [NCT04723147]Phase 420 participants (Actual)Interventional2021-01-29Completed
Single-Center, Open, Randomized, Single-Dose, Completely Repeated Crossover Bioequivalence Study to Evaluate the Effects of the Test/Reference Preparation, Entacapone,Levodopa and Carbidopa Tablets (II) in Healthy Adult Subjects [NCT05976737]Phase 168 participants (Anticipated)Interventional2023-08-17Not yet recruiting
A Study to Assess the Pharmacokinetics and Pharmacodynamics of a Single Dose of IPX203 in Patients With Advanced Parkinson's Disease [NCT02271503]Phase 226 participants (Actual)Interventional2015-11-30Completed
Open-Label, 12-Month Safety and Efficacy Study of Levodopa - Carbidopa Intestinal Gel in Levodopa-Responsive Parkinson's Disease Subjects [NCT00360568]Phase 362 participants (Actual)Interventional2009-06-30Completed
A Phase 1 Single Dose Pharmacokinetic Bridging Study to Compare Two Dose Strengths of CVT-301 (Levodopa Inhalation Powder) With an Oral Dose of Sinemet® (Carbidopa-levodopa) Tablets [NCT02812394]Phase 124 participants (Actual)Interventional2016-06-30Completed
Observational, Cross-sectional Clinical Study in Parkinson's Disease (PD) Patients and Healthy Controls (HC) to Identify PD Specific Microbial and Metabolic Fingerprints in Small Intestinal (SI) Fluid and Blood [NCT06003608]100 participants (Anticipated)Observational2023-10-31Not yet recruiting
A Double-blind, Randomised, Placebo- and Active-controlled, Cross-over Study to Investigate the Effect of Two Multiple-dose Regimens of BIA 3-202 on the Pharmacokinetics and Motor Response of Levodopa, and on the Erythrocyte Comt Activity in Parkinson's D [NCT02834507]Phase 219 participants (Actual)Interventional2005-03-31Completed
A Multicenter, Randomized, Double-blind, Placebo Controlled, Parallel Group Clinical Study Investigating the Efficacy, Tolerability, and Safety of Continuous Subcutaneous ND0612 Infusion Given as Adjunct Treatment to Oral Levodopa in Patients With Parkins [NCT02782481]Phase 30 participants (Actual)Interventional2016-08-31Withdrawn(stopped due to Decision to change the study design)
Identifying Circuit Dynamics Underlying Motor Dysfunction in Parkinson's Disease Using Real-Time Neural Control [NCT06013956]Phase 430 participants (Anticipated)Interventional2023-08-29Recruiting
Single-Center, Open, Randomized, Single-Dose, Completely Repeated Crossover Bioequivalence Study to Evaluate the Effects of the Test/Reference Preparation, Entacapone,Levodopa and Carbidopa Tablets (II) in the Postprandial State in Healthy Adult Subjects [NCT06180720]Phase 136 participants (Anticipated)Interventional2023-12-20Not yet recruiting
A Dose-escalation Tolerability Study of Levodopa/Carbidopa in Angelman Syndrome [NCT00829439]Phase 116 participants (Actual)Interventional2009-01-31Completed
Dual Release Gastric Retentive AP09004, Vs. Active Control; a Pharmacokinetic/Pharmacodynamic, Comparative, Safety Evaluation in Parkinson's Patients [NCT00918177]Phase 272 participants (Anticipated)Interventional2009-07-31Completed
1) To Identify the Concentration of CD That Provides Optimal Bioavailability of a Concomitant Fixed Concentration of LD Infused SC Continuously; 2) To Compare the Bioavailability of the Optimal LD/CD Solution to That of LD/CD Intestinal Gel [NCT02604914]Phase 136 participants (Actual)Interventional2015-05-31Completed
An Open-Label,Multi-Center, Follow-Up Study Designed to Evaluate the Long-Term Effects of AP-CD/LD in Fluctuating Parkinson's Disease Subjects Who Completed Study IN 11 004 [NCT02615873]Phase 3460 participants (Anticipated)Interventional2016-07-31Recruiting
A Randomized, Double-Blind, Double-Dummy, Efficacy, Safety and Tolerability Study of Levodopa - Carbidopa Intestinal Gel in Levodopa-Responsive Parkinson's Subjects Receiving Optimized Treatments With Parkinson Medicinal Products Who Continue to Experienc [NCT00660387]Phase 335 participants (Actual)Interventional2009-12-31Completed
Dopaminergic Dysfunction in Late-Life Depression [NCT04469959]Phase 280 participants (Anticipated)Interventional2021-02-15Recruiting
Bioavailability of a Formulation of Oseltamivir Phosphate 75 mg Tablets With Regards to the Reference Product [NCT05250141]Phase 144 participants (Actual)Interventional2022-02-14Completed
Treatment in Advanced Parkinson's Disease: Continuous Intrajejunal Levodopa INfusion VErsus Deep Brain STimulation [NCT02480803]Phase 466 participants (Anticipated)Interventional2014-12-19Active, not recruiting
Levodopa Concentration Profile After Repeated Doses of Stalevo [NCT00693862]Phase 119 participants (Actual)Interventional2006-12-31Completed
Pharmacokinetics of Levodopa After Repeated Doses of Carbidopa, ODM-104 and Levodopa: an Open, Randomised Study With Crossover Design in Healthy Males and Females [NCT02554734]Phase 115 participants (Actual)Interventional2015-08-31Completed
Dopamine Buffering Capacity Measured by phMRI as a Novel Biomarker of Disease Progression in PD [NCT03205956]Phase 131 participants (Actual)Interventional2017-10-19Completed
Efficacy and Safety of ODM-104 Compared to a Standard Combination (Stalevo®); a Randomized Double-blind, Crossover Proof-of-concept Study in Patients With Parkinson's Disease and End-of-dose Wearing-off [NCT02764125]Phase 284 participants (Actual)Interventional2016-04-08Completed
A Phase 2a Multicentre Randomized Double Blind Placebo Controlled Study Followed by an Open Label Period, to Evaluate the Safety, Tolerability and Levodopa Pharmacokinetics in Levodopa-treated Parkinson's Disease Patients With Motor Fluctuations, Administ [NCT01883505]Phase 230 participants (Actual)Interventional2014-01-31Completed
L-Dihydroxyphenylserine (L-DOPS) for Norepinephrine Deficiency: Interactions With Carbidopa and Entacapone [NCT00547911]Phase 1/Phase 214 participants (Actual)Interventional2007-10-31Terminated(stopped due to Study terminated due to contamination droxidopa)
An 8-week, Prospective, Randomized, Double-blind, Double-dummy, Active-controlled, Multi-center Comparison Study of the Effects of Carbidopa/Levodopa/Entacapone Versus Immediate Release Carbidopa/Levodopa on Non-motor Symptoms in Patients With Idiopathic [NCT00642356]Phase 414 participants (Actual)Interventional2008-03-31Terminated(stopped due to slow enrollment)
Different Dyskinesias in Parkinson's Disease and Their Relation to Levodopa Pharmacokinetics [NCT00888186]Phase 45 participants (Actual)Interventional2008-02-29Completed
Pharmacokinetics of Levodopa in Patients With Parkinson's Disease Treated With Levodopa/Carbidopa Infusion With and Without Oral COMT Inhibitors [NCT00906828]Phase 410 participants (Anticipated)Interventional2008-10-31Completed
The Effects of 5-hydroxytryptophan (5-HTP) and L-3,4-dihydroxyphenylalanine (L-DOPA) Supplementation on Central Nervous System Excitability and Motor Function in Individuals With Spinal Cord Injury [NCT04000919]Phase 2/Phase 330 participants (Anticipated)Interventional2019-06-19Suspended(stopped due to PI left UofL and intends to reopen study at University of Alberta)
A Phase II, Multi-Center, Randomized, Double-Blind, Placebo-Controlled, Dose-Response, Study To Assess The Clinical Benefit Of Droxidopa and Droxidopa/Carbidopa In Subjects With Fibromyalgia [NCT01323374]Phase 2120 participants (Actual)Interventional2009-01-31Completed
A 3-month, Multi-center, Double-blind, Randomized Study to Evaluate the Efficacy of Levodopa/Carbidopa/Entacapone vs Levodopa/Carbidopa in Parkinson's Disease Patients With Impairment of Activities of Daily Living and Early Wearing-off With Levodopa [NCT00391898]Phase 495 participants (Actual)Interventional2006-10-31Completed
A Long Term, Double-blind, Randomized, Parallel-group, Carbidopa/Levodopa Controlled, Multi-center Study to Evaluate the Effect of Carbidopa/Levodopa/Entacapone in Patients With Parkinson's Disease Requiring Initiation of Levodopa Therapy [NCT00099268]Phase 3747 participants (Actual)Interventional2004-09-30Completed
Levodopa Concentration Profile After Repeated Doses of Different Stalevo® Strengths With 3.5 Hours Dosing Frequency; an Open, Randomised, Crossover, Levodopa/Carbidopa Controlled Single Centre Study in Healthy Subjects, Two Parallel Groups [NCT01070628]Phase 120 participants (Anticipated)Interventional2009-12-31Completed
Multicentre, Randomised, Double-Blind Study to Compare Stalevo to Levodopa/Carbidopa in Patients With Parkinson's Disease Experiencing Symptoms of Early Wearing-Off [NCT00125567]Phase 4223 participants (Actual)Interventional2005-08-31Completed
An Efficacy, Safety, and Pharmacokinetics/Pharmacodynamic Relationship Study of L-Dopa/Carbidopa in a Novel Release Formulation in Parkinson's Disease Patients [NCT00558337]Phase 278 participants (Actual)Interventional2007-11-30Completed
Behavioral Strategies to Maximize the Efficacy of Pharmacotherapy for Cocaine Dependence: Relapse Prevention With Contingency Management Procedures [NCT00218075]Phase 2200 participants Interventional2000-03-31Completed
A Multicenter, Parallel-group, Rater-blinded, Randomized Clinical Study Investigating the Efficacy, Safety, Tolerability and Pharmacokinetics of 2 Dosing Regimens of ND0612H [ ] in Subjects With Advanced Parkinson's Disease [NCT02577523]Phase 238 participants (Actual)Interventional2015-12-29Completed
A Phase I/II Pharmacokinetic (PK) Study of ND0612, a Liquid Formulation of Levodopa/Carbidopa (LD/CD), Delivered as a Continuous Subcutaneous in Parkinson's Disease (PD) Patients Treated With LD [NCT02096601]Phase 1/Phase 216 participants (Actual)Interventional2014-08-31Completed
Effects of Single Doses of Stalevo 200 and Levodopa/Carbidopa 200/50mg on Striatal 11C-Raclopride Binding Potential in Parkinson's Disease Patients With Wearing-Off Symptoms;an Open, Randomised, Active-Controlled,Two-Period Crossover Study. [NCT00562198]Phase 216 participants (Anticipated)Interventional2008-01-31Terminated(stopped due to Illogistical results found in interim evaluation.)
Evaluation and Treatment of Autonomic Failure. [NCT00223691]Phase 1389 participants (Actual)Interventional2002-03-31Completed
The Role of Dopamine in the Central Neural Signature of Chronic Pain [NCT05285683]Phase 210 participants (Anticipated)Interventional2023-01-01Recruiting
The Effects of Mood Symptoms Treatment on Quality of Life and Motor Function in de Novo Parkinson's Disease Patients [NCT04590612]30 participants (Anticipated)Interventional2021-01-31Not yet recruiting
An Open Label, Balanced, Randomised, Four-treatment, Four-period, Four-sequence, Single Oral Dose, Crossover PK Study of WD-1603 in Normal, Healthy, Adult Human Subjects Under Fed Conditions [NCT04591535]Phase 18 participants (Anticipated)Interventional2020-09-28Recruiting
Carbidopa-Levodopa in Dry Age Related Macular Degeneration With Geographic Atrophy [NCT03451500]Phase 27 participants (Actual)Interventional2018-07-01Active, not recruiting
A Phase 1 Study of the Safety and Levodopa Pharmacokinetics Following Single Dose Administration of CVT 301 (Levodopa Inhalation Powder) in Smoking and Non-Smoking Adults [NCT02633839]Phase 160 participants (Actual)Interventional2015-12-31Completed
A Randomized, Double-Blind, Placebo-Controlled, Crossover Study to Compare IPX054 200 mg and 250 mg to CD-LD IR 200 (2x100) mg Tablets and CD-LD CR 200 mg Tablet in Subjects With Parkinson's Disease [NCT00279825]Phase 216 participants (Actual)Interventional2006-01-31Completed
Transition From Acute to Chronic Back Pain : Effect of L-dopa,Gender,and Associated Brain Plasticity [NCT04082715]Phase 20 participants (Actual)Interventional2019-10-31Withdrawn(stopped due to we don't have enough research funding.)
Phase 3 Multicenter Randomized Double-Blind, Double-dummy, Active-Controlled Study Comparing Efficacy/Safety of Gastric-retentive, Controlled-release Accordion Pill Carbidopa/Levodopa to Immediate Release in Fluctuating Parkinson's Patients [NCT02605434]Phase 3420 participants (Anticipated)Interventional2016-03-31Active, not recruiting
The Effect of Dopamine on Diabetic Retinopathy [NCT02706977]Phase 160 participants (Actual)Interventional2016-01-31Completed
A Randomized Trial of Levodopa as Treatment for Residual Amblyopia (ATS 17) [NCT01190813]Phase 3139 participants (Actual)Interventional2010-09-30Completed
A Study To Evaluate The Safety And Efficacy Of IPX066 In Advanced Parkinson's Disease [NCT00974974]Phase 3471 participants (Actual)Interventional2009-09-30Completed
Comparison of Orally Dissolving Carbidopa/Levodopa (Parcopa) to Conventional Oral Carbidopa/Levodopa: A Single-Dose, Double-Blind, Double-Dummy, Placebo-Controlled, Crossover Trial [NCT00590122]Phase 420 participants (Actual)Interventional2006-10-31Completed
A Double-Blind, Randomized, Comparative Study of Cabaser and Sinemet CR For The Treatment Of Nocturnal Disability In Levodopa -Treated Parkinson's Disease Patients. [NCT00174239]Phase 4220 participants Interventional2004-07-31Terminated(stopped due to See Detailed Description for termination reason.)
A Phase IIa, Randomized, Double Blind, Placebo Controlled, Single Ascending Dose, Safety and Pharmacokinetic/Pharmacodynamic Study of INP103 (POD L-dopa) Administered in the Presence of DCI to L-dopa Responsive Parkinson's Disease Patients [NCT03541356]Phase 232 participants (Actual)Interventional2018-05-08Completed
A 12-Week, Multi-center, Randomized, Prospective, Open-Label, Blinded Rater, Crossover Study of the Effects of Immediate-Release Carbidopa/Levodopa Versus Carbidopa/Levodopa/Entacapone on Markers of Event-Related Potentials (ERPs) in Patients With Idiopat [NCT00601978]Phase 40 participants (Actual)Interventional2008-08-31Withdrawn(stopped due to Business decision brand strategy; no patients enrolled)
AN OPEN LABEL, BALANCED, RANDOMISED, FOUR-TREATMENT, FOUR-PERIOD, FOUR-SEQUENCE, SINGLE INTRA-ORAL AND ORAL DOSE, CROSSOVER PHARMACOKINETICS STUDY OF WD-1603 EXTENDED-RELEASE CARBIDOPA/LEVODOPA TABLETS 25/100MG IN NORMAL, HEALTHY, ADULT HUMAN SUBJECTS UND [NCT04513340]Phase 18 participants (Anticipated)Interventional2020-08-13Recruiting
Enhancement of Stroke Rehabilitation With Levodopa (ESTREL): a Randomized Placebo-controlled Trial [NCT03735901]Phase 3610 participants (Anticipated)Interventional2019-06-14Recruiting
Assessment of Carbidopa/l-Dopa and Carbidopa/l Dopa/Entacapone on Synaptic Dopamine in Parkinson's Patients: An Open-Label Feasibility/Pilot Study With [123I]-IBZM SPECT (DOPA-SYN) [NCT00200447]Phase 23 participants (Actual)Interventional2004-03-31Completed
A Pharmacokinetic Study of Levodopa and Carbidopa Intestinal Gel in Subjects With Advanced Parkinson's Disease [NCT01484990]Phase 119 participants (Actual)Interventional2010-04-30Completed
A Randomized, Two-Way Crossover Study to Investigate the Bioavailability of a Single Oral Dose of 12.5 mg Carbidopa, 50 mg Levodopa and 200 mg Entacapone Compared to a Single Oral Combined Dose of Both 12.5 mg Carbidopa and 50 mg Levodopa and 200 mg Entac [NCT00415831]Phase 142 participants Interventional2006-06-30Completed
An Open Label, Multiple-Dose Study ot Determine the Plasma Levodopa Profiles of Sinemet® CR (Carbidopa/Levodopa) at 4 Daily Dose Levels in Healthy Subjects [NCT00460954]20 participants (Anticipated)Observational2007-06-30Completed
A 39 Week Randomized, Double-Blind, Parallel Group, Multicenter Study to Evaluate the Effect of Fixed Dose Carbidopa/Levodopa/Entacapone 100 mg t.i.d. vs. Immediate Release Carbidopa/Levodopa 25/100 mg (t.i.d.) in Parkinson's Disease Patients Requiring Le [NCT00134966]Phase 3493 participants (Actual)Interventional2005-08-31Completed
A Randomized, Double-Blind, Placebo-Controlled, 2-Period Crossover Study to Evaluate Effectiveness of Single-Dose MK0657 in Combination With Levodopa on Motor Symptoms and Dyskinesias in Patients With Parkinson's Disease [NCT00505843]Phase 118 participants (Actual)Interventional2007-05-31Completed
A Pilot Study to Evaluate Levodopa as Treatment for Residual Amblyopia in 8 to 17 Year Olds [NCT00789672]Phase 233 participants (Actual)Interventional2009-01-31Completed
A Double-blind, Randomised, Placebo- and Active-controlled Multiple-dose Study of BIA 9-1067 to Investigate Its Effect on Levodopa Pharmacokinetics Following a Levodopa/Carbidopa 100/25 mg Single-dose in Healthy Subjects [NCT01519284]Phase 182 participants (Actual)Interventional2009-11-30Completed
A Study to Compare IPX066 and Carbidopa/Levodopa/Entacapone (CLE) Followed by an Open-Label Safety Study of IPX066 in Advanced Parkinson's Disease [NCT01130493]Phase 3110 participants (Actual)Interventional2010-05-31Completed
A Single-blinded Assessment of the Short-term Effects of Cabergoline vs. Carbidopa/Levodopa on SPECT Dopamine Transporter Density in Out-patient Subjects With Parkinson's Disease [NCT00129181]30 participants (Actual)Interventional2005-01-31Completed
Study to Compare the Effect of Treatment With Carbidopa/Levodopa/Entacapone on the Quality of Life of Patients With Parkinson's Disease. [NCT00143026]Phase 4184 participants (Actual)Interventional2005-07-31Completed
A Phase IIa Study to Assess the Safety, Tolerability, Plasma Pharmacokinetics and Efficacy of Intermittent Oral Administration of Standard Levodopa/Carbidopa vs. Semi-continuous Intra-oral Administration of Levodopa/Carbidopa in Patients With Advanced Par [NCT02763137]Phase 218 participants (Actual)Interventional2014-07-30Completed
The Pathophysiology and Treatment of Supine Hypertension in Patients With Autonomic Failure [NCT00223717]Phase 1152 participants (Actual)Interventional2001-01-31Completed
A Prospective, Multi-center, Randomized, Open-label Study With Blinded Raters to Evaluate the Effects of Immediate Versus Delayed Switch to Carbidopa/Levodopa/Entacapone on Motor Function and Quality of Life in Patients With Parkinson's Disease With End-o [NCT00219284]Phase 4359 participants (Actual)Interventional2005-01-31Completed
Acute Effects of Pharmacological Neuromodulation on Leg Motor Activity in Patients With Spinal Cord Injury Treated With Epidural Electrical Stimulation [NCT04052776]Phase 13 participants (Actual)Interventional2020-09-11Completed
Clinical Study of Stalevo in the Treatment of Early Parkinson's Disease [NCT04952194]Phase 4180 participants (Anticipated)Interventional2022-01-01Recruiting
A Study to Compare Pharmacokinetics and Pharmacodynamics of IPX066 to Standard Carbidopa-Levodopa [NCT00869791]Phase 227 participants (Actual)Interventional2008-11-30Completed
Proof of Concept and Dose Ranging Study of Carbidopa-levodopa in Neovascular AMD [NCT03023059]Phase 235 participants (Actual)Interventional2017-05-02Completed
A Randomized, Two-Way Crossover Study to Investigate the Bioavailability of a Single Oral Dose of 12.5 mg Carbidopa, 50 mg Levodopa and 200 mg Entacapone Compared to a Single Oral Combined Dose of Both 12.5 mg Carbidopa and 50 mg Levodopa and 200 mg Entac [NCT00415740]Phase 142 participants Interventional2006-05-31Completed
The REmission of the Impulse Control Disorder and the Changes of the Neuropsychiatric Characteristics After Switching Into Levodopa/Carbidopa in Patients With Parkinson's Disease Who Have Developed Impulse Control Disorders Due to the Dopamine Replacement [NCT01683253]Phase 4150 participants (Actual)Interventional2012-11-30Completed
Safety, Tolerability, Pharmacokinetics and Pharmacodynamic Effects of Single and Repeated Escalating Doses of ODM-103: a Randomised, Double-blind, Placebo- and Entacapone-controlled Single Centre First-in-man Study in Healthy Volunteers. [NCT01688089]Phase 167 participants (Actual)Interventional2012-09-30Completed
Augmenting Language Therapy for Aphasia: A Randomized Double-Blind Placebo-Controlled Trial of Levodopa in Combination With Speech-Language Therapy [NCT01429077]Phase 2/Phase 336 participants (Actual)Interventional2007-10-31Completed
A Randomized, Two-Way Crossover Study to Investigate the Bioavailability of a Single Oral Dose of 25 mg Carbidopa, 100 mg Levodopa and 200 mg Entacapone Compared to a Single Oral Combined Dose of Both 25 mg Carbidopa and 100 mg Levodopa and 200 mg Entacap [NCT00415844]Phase 142 participants Interventional2006-06-30Completed
A Randomized, Two-Way Crossover Study to Investigate the Bioavailability of a Single Oral Dose of 37.5 mg Carbidopa, 150 mg Levodopa and 200 mg Entacapone Compared to a Single Oral Combined Dose of Both 37.5 mg Carbidopa and 150 mg Levodopa and 200 mg Ent [NCT00415922]Phase 142 participants Interventional2006-07-31Completed
Sinemet in ALS and PLS [NCT03929068]Phase 115 participants (Actual)Interventional2019-05-13Completed
Augmentation of Antipsychotics With L-Dopa (Sinemet) [NCT01636037]Phase 213 participants (Actual)Interventional2012-09-30Completed
A Phase 2 Efficacy, Safety and Pharmacokinetic Study of XP21279 BL2 and Sinemet® in Parkinson's Disease Subjects With Motor Fluctuations [NCT01171313]Phase 235 participants (Actual)Interventional2010-07-31Completed
Efficacy and Safety of ODM-101 Compared to a Standard Combination (Stalevo®); a Randomised, Double-blind, Crossover, Proof of Concept Study in Patients With Parkinson's Disease and End-of-dose Motor Fluctuations [NCT01766258]Phase 2117 participants (Actual)Interventional2011-05-31Completed
Dopaminergic Therapy for Inflammation-Related Anhedonia in Depression - 2 [NCT06075771]Phase 470 participants (Anticipated)Interventional2023-11-30Not yet recruiting
Safety, Tolerability, Pharmacokinetics and Pharmacodynamic Effects of Single and Repeated Escalating Doses of ODM-104: a Randomised, Double-blind, Placebo- and Entacapone-controlled Single Centre First-in-man Study in Healthy Volunteers. [NCT01840423]Phase 1101 participants (Actual)Interventional2013-05-31Completed
A Pilot Study of the Drug Effects on Brain Connectivity of Parkinson's Disease [NCT01528592]18 participants (Actual)Interventional2011-06-30Completed
Effect of BIA 9-1067 at Steady-state on the Pharmacokinetics of a Single-dose of Immediate-release 100/25 mg Levodopa/Carbidopa and 100/25 mg Levodopa/Benserazide in Healthy Subjects [NCT01533116]Phase 152 participants (Actual)Interventional2009-03-31Completed
Vigor and the LDR in Parkinson Disease [NCT04821830]40 participants (Anticipated)Observational2020-02-12Recruiting
Behavioral and Physiological Effects of Cocaine in Cocaine-dependent Participants Treated With Levodopa in Combination With Carbidopa and Entacapone (LCE) [NCT01437293]Phase 115 participants (Actual)Interventional2010-08-31Completed
"Efficacy and Safety of BIA 9-1067 in Idiopathic Parkinson's Disease Patients With Wearing-off Phenomenon Treated With Levodopa Plus a Dopa Decarboxylase Inhibitor (DDCI): a Double-blind, Randomised, Placebo-controlled, Parallel-group, Multicentre Clinica [NCT01227655]Phase 3427 participants (Actual)Interventional2011-03-31Completed
Project 1 Aim 2, Adaptations of the Brain in Chronic Pain With Opioid Exposure [NCT05463367]Phase 280 participants (Anticipated)Interventional2021-01-01Recruiting
"Efficacy and Safety of BIA 9-1067 in Idiopathic Parkinson's Disease Patients With Wearing-off Phenomenon Treated With Levodopa Plus a Dopa Decarboxylase Inhibitor (DDCI): a Double-blind, Randomised, Placebo- and Active-controlled, Parallel-group, Multice [NCT01568073]Phase 3600 participants (Actual)Interventional2011-03-31Completed
Interventional Study of Levodopa Replacement on Retinal Function in Oculocutaneous Albinism [NCT01663935]Phase 220 participants (Actual)Interventional2012-10-17Terminated(stopped due to Lack of funding)
Screening Medications for Cocaine Cessation and Relapse Prevention [NCT00218023]Phase 2101 participants (Actual)Interventional2006-03-31Completed
Open-Label Continuation Treatment Study With Levodopa - Carbidopa Intestinal Gel In Subjects With Advanced Parkinson's Disease And Severe Motor-Fluctuations Who Have Exhibited A Persistent And Positive Effect To Treatment In Previous Studies [NCT00660673]Phase 3262 participants (Actual)Interventional2009-11-13Completed
Carbidopa in Familial Dysautonomia: Phase-II Study, Investigational New Drug (IND) 117435, Date: 01/07/13 [NCT02553265]Phase 222 participants (Actual)Interventional2015-09-30Completed
"A Randomized, Placebo-Controlled, Phase 2 Study of the Safety, Pharmacokinetics and Pharmacodynamics of CVT-310 (Levodopa Inhalation Powder) in Patients With Parkinson's Disease and Motor Response Fluctuations (Off Episodes)" [NCT01617135]Phase 225 participants (Actual)Interventional2012-05-31Completed
A Two-Period Trial (Open-Label and Randomized Placebo-Controlled Substitution) of Droxidopa Treatment in Adults With ADHD With Co-administration of Carbidopa [NCT00983814]Phase 220 participants (Actual)Interventional2009-10-31Completed
Carbidopa for the Treatment of Nausea and Vomiting in Familial Dysautonomia [NCT01212484]Phase 312 participants (Actual)Interventional2009-12-31Completed
Norepinephrine-targeted Therapy for Action Control in Parkinson Disease [NCT03115827]Phase 415 participants (Actual)Interventional2017-04-18Completed
Effect of Levodopa-Carbidopa on Visual Function in Patients With Recent-Onset Nonarteritic Anterior Ischemic Optic Neuropathy [NCT00432393]Phase 40 participants Interventional2002-06-30Completed
"Inflammation-related Alterations in Neurocircuitry: Reversal With Levodopa; Inflammation Effects on Corticostriatal Connectivity and Reward: Role of Dopamine" [NCT02513485]Phase 457 participants (Actual)Interventional2015-10-09Completed
An Open-Label, Single-Arm, Baseline-Controlled, Multicenter Study to Evaluate the Efficacy, Safety and Tolerability of ABT-SLV187 Monotherapy in Subjects With Advanced Parkinson's Disease and Persistent Motor-Complications Despite Optimized Treatment With [NCT01960842]Phase 331 participants (Actual)Interventional2013-10-31Completed
A Phase 4, Open-Label, Efficacy and Safety Study of Apokyn® for Rapid and Reliable Improvement of Motor Symptoms in Parkinson Disease Subjects With Delayed Onset of L-Dopa Action [NCT01770145]Phase 4127 participants (Actual)Interventional2012-12-31Completed
Effect of Three Multiple-dose Regimens of BIA 9 1067 at Steady-state on the Levodopa Pharmacokinetics of a Single-dose of Immediate Release 100/25 mg Levodopa/Carbidopa and 100/25 mg Levodopa/Benserazide in Healthy Subjects [NCT02169414]Phase 174 participants (Actual)Interventional2010-02-28Completed
Combination Treatment With L-DOPA and Exercise for Mood and Mobility Problems in Late-Life [NCT04650217]Phase 41 participants (Actual)Interventional2021-10-07Terminated(stopped due to Study terminated by sponsor (NIMH))
An Open-label, Balanced, Randomized, Five-treatment, Five-period, Five-sequence, Multiple Oral Dose, Crossover Comparative Bioavailability Study of Different Strengths of Carbidopa/Levodopa Extended-release Tablets With Carbidopa and Levodopa Tablets in N [NCT05128175]Phase 115 participants (Anticipated)Interventional2021-10-29Recruiting
An Open-Label, Single-Arm, Baseline-Controlled, Multicenter Study to Explore the Safety, Tolerability, Pharmacokinetics, and Efficacy of ABT-SLV187 in Subjects With Advanced Parkinson's Disease [NCT01479127]Phase 28 participants (Actual)Interventional2011-10-31Completed
Pharmacokinetic Interaction Between BIA 9-1067 and Standard-release Levodopa/Carbidopa in Healthy Subjects [NCT01533077]Phase 118 participants (Actual)Interventional2009-03-31Completed
The Effect of BIA 9-1067 at Steady-state on the Levodopa Pharmacokinetics When Administered With Immediate-release 100/25 mg Levodopa/Carbidopa in Healthy Subjects [NCT02170376]Phase 180 participants (Actual)Interventional2011-09-30Completed
A Randomized Controlled Trial of Four Week Outpatient Treatment of Parkinson's Disease Comparing High and Low Dose Carbidopa. [NCT01399905]Phase 214 participants (Actual)Interventional2009-03-31Completed
Clinical Study to Evaluate the Possible Efficacy of Metformin in Patients With Parkinson's Disease [NCT05781711]Phase 260 participants (Anticipated)Interventional2023-01-06Recruiting
Short Term Effects of Carbidopa-levodopa in Neovascular AMD [NCT03022318]Phase 221 participants (Actual)Interventional2017-05-02Completed
Clinical Study to Investigate the Possible Efficacy and Safety of Montleukast in Parkinson Disease [NCT06113640]Phase 2/Phase 360 participants (Anticipated)Interventional2023-11-05Recruiting
A Phase II Randomized, Parallel, Double-blind, Placebo-controlled, Multi-center Clinical Trial of the Efficacy and Safety of WD-1603 Carbidopa-Levodopa Extended-Release Tablets in Patients With Parkinson's Disease [NCT05036473]Phase 240 participants (Anticipated)Interventional2021-10-12Recruiting
"A Multicentre, Double-blind, Randomised, Active- and Placebo-controlled Trial to Investigate the Efficacy and Tolerability of Nebicapone in Parkinson's Disease Patients With Wearingoff Phenomenon Treated With Levodopa/Carbidopa or Levodopa/Benserazide" [NCT03103399]Phase 2254 participants (Actual)Interventional2006-09-26Completed
A Double-blind, Randomised, Placebo-controlled, Cross-over Study to Investigate the Tolerability and Effect of Three Single-dose Regimens of BIA 9-1067 on the Levodopa Pharmacokinetics, Motor Response, and Erythrocyte Soluble Catechol-O-methyltransferase [NCT01568034]Phase 210 participants (Actual)Interventional2009-04-30Completed
a Pilot Follow-up Study of Investigating the Effect of Pramipexole on Metabolic Network Activity Compared With Levodopa in Chinese Patients With Early Parkinson's Disease [NCT01470859]30 participants (Actual)Interventional2011-12-31Completed
Acute Effects of SCH 420814 on Dyskinesia and Parkinsonism in Levodopa Treated Patients [NCT00845000]Phase 112 participants (Actual)Interventional2009-04-21Completed
Cognitive-enhancing DA Medications for Cocaine Dependence [NCT01393457]Phase 2119 participants (Actual)Interventional2011-06-30Completed
Corticostriatal Plasticity in the Transition to Chronic Pain: Effect of L-dopa [NCT01951105]Phase 472 participants (Actual)Interventional2015-02-24Completed
Imaging the Neurobiology of Behavioral and Medication Treatment for Cocaine Dependence [NCT01468012]Phase 2/Phase 323 participants (Actual)Interventional2014-07-31Completed
The Effect of Combining Robotic-Assisted Therapy With Levodopa/Carbidopa in Chronic Post-Stroke Upper-Limb Hemiparesis [NCT02346630]Phase 40 participants (Actual)Interventional2015-03-31Withdrawn(stopped due to We didn't receive the expected funding to support the study.)
Assessing the Pharmacokinetics, Safety, Tolerability and Efficacy of Continuous Oral Levodopa Via the DopaFuse® Delivery System in Parkinson's Disease Patients [NCT04778176]Phase 217 participants (Actual)Interventional2021-06-16Completed
"Multicentre, Double-blind, Randomised, Placebo-controlled Study in Four Parallel Groups of PD Patients Treated With Standard-release Levodopa/Carbidopa 100/25 mg (Sinemet®) or Levodopa/Benserazide 100/25 mg (Madopar®/Restex®) and With Motor Fluctuations [NCT01568047]Phase 240 participants (Actual)Interventional2010-02-28Completed
Striatal Effective Connectivity to Predict Treatment Response in Cocaine Misuse [NCT02080819]Phase 2131 participants (Actual)Interventional2014-02-28Completed
Histaminergic Basis of Central Fatigue in Multiple Sclerosis - A Novel Approach [NCT03266965]Phase 118 participants (Actual)Interventional2018-03-23Completed
Novel Non-opioid Post-surgical Pain Treatment in Females [NCT05087914]Phase 260 participants (Anticipated)Interventional2021-11-01Recruiting
An Open-Label, Two Part, Multicenter Study to Assess the Safety and Efficacy of Levodopa-Carbidopa Intestinal Gel (LCIG) for the Treatment of Non-Motor Symptoms in Subjects With Advanced Parkinson's Disease [NCT01736176]Phase 339 participants (Actual)Interventional2013-03-31Completed
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

TrialOutcome
NCT00099268 (6) [back to overview]Occurrence of Dyskinesia
NCT00099268 (6) [back to overview]Change From Baseline in Health-related Quality of Life Assessed Using the 39-item Parkinson's Disease Questionnaire (PDQ-39)
NCT00099268 (6) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Total Score (Parts II and III)
NCT00099268 (6) [back to overview]Time to First Occurrence of Wearing-off
NCT00099268 (6) [back to overview]Time to First Occurrence of Dyskinesia
NCT00099268 (6) [back to overview]Occurrence of Wearing-off
NCT00141518 (60) [back to overview]Indirect Monthly Costs Per Participant (Only Applied to Participants Younger Than 65) by Study Month, SEK 2010
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (Self-assessment) From Baseline to Month 36
NCT00141518 (60) [back to overview]PDQ-39 Mobility Subscale Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (Tapping, Random Chase - Accuracy) From Baseline to Month 36
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (Tapping, Random Chase - Speed) From Baseline to Month 36
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (Walking) From Baseline to Month 36
NCT00141518 (60) [back to overview]EQ-5D Descriptive Systems Summary Index Score, up to Month 36
NCT00141518 (60) [back to overview]EQ-5D Visual Analog Scale (VAS) Score at Baseline and Month 12
NCT00141518 (60) [back to overview]EQ-5D Visual Analog Scale (VAS) Score, up to Month 36
NCT00141518 (60) [back to overview]Euro QoL 5 Dimensions Quality of Life Instrument (EQ-5D) Descriptive Systems Summary Index Score at Baseline and Month 12
NCT00141518 (60) [back to overview]MADRS Apparent Sadness Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]MADRS Concentration Difficulties Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]MADRS Inability to Feel Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]MADRS Inner Tension Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]MADRS Lassitude Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]MADRS Pessimistic Thoughts Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (Tapping, Increased Speed - Accuracy) From Baseline to Month 36
NCT00141518 (60) [back to overview]MADRS Reduced Appetite Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]MADRS Reduced Sleep Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]MADRS Reported Sadness Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]MADRS Suicidal Thoughts Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]Mini Mental Status Examination (MMSE) Total Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]MMSE Attention and Calculation Subscale Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]MMSE Language Subscale Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]MMSE Orientation Subscale Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]MMSE Recall Subscale Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]MMSE Registration Subscale Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]Modified Hoehn and Yahr Staging: Best Stage From Baseline to Month 36
NCT00141518 (60) [back to overview]Modified Hoehn and Yahr Staging: Current Stage From Baseline to Month 36
NCT00141518 (60) [back to overview]Modified Hoehn and Yahr Staging: Worst Stage From Baseline to Month 36
NCT00141518 (60) [back to overview]Montgomery-Åsberg Depression Rating Scale (MADRS) Total Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]Parkinson's Disease Questionnaire-39 (PDQ-39) Summary Index Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]PDQ-39 Activities of Daily Living Subscale Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]PDQ-39 Bodily Discomfort Subscale Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]PDQ-39 Cognition Subscale Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]PDQ-39 Communication Subscale Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]PDQ-39 Emotional Well Being Subscale Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]PDQ-39 Social Support Subscale Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]PDQ-39 Stigma Subscale Scores From Baseline to Month 36
NCT00141518 (60) [back to overview]Unified Parkinson's Disease Rating Scale (UPDRS) Total Score, and UPDRS Subscores I, II, III, and IV at Baseline and Month 12
NCT00141518 (60) [back to overview]UPDRS Part I Score, up to Month 36
NCT00141518 (60) [back to overview]UPDRS Part II Score, up to Month 36
NCT00141518 (60) [back to overview]UPDRS Part III Score, up to Month 36
NCT00141518 (60) [back to overview]UPDRS Part IV Score, up to Month 36
NCT00141518 (60) [back to overview]UPDRS Total Score up to Month 36
NCT00141518 (60) [back to overview]Direct Monthly Non-medical Costs Per Participant, SEK 2010
NCT00141518 (60) [back to overview]Monthly Direct Medical Cost (Excluding Drug Costs) Per Participant, SEK 2010
NCT00141518 (60) [back to overview]Monthly Drug Costs Per Participant, SEK 2010
NCT00141518 (60) [back to overview]Total Monthly Cost Per Participant, in Swedish Crowns (SEK) 2010
NCT00141518 (60) [back to overview]"Schwab and England Scale: Best On Period Stage From Baseline to Month 36"
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (Cramps) From Baseline to Month 36
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (Drawing Impairment [Wavelet Method]) From Baseline to Month 36
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (Dyskinetic Magnitude) From Baseline to Month 36
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (Dyskinetic Time) From Baseline to Month 36
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (Free Tapping - Accuracy) From Baseline to Month 36
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (Free Tapping - Speed) From Baseline to Month 36
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (Off Magnitude) From Baseline to Month 36
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (Off Time) From Baseline to Month 36
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (On Time) From Baseline to Month 36
NCT00141518 (60) [back to overview]Electronic Diary: Morning and Day Scores (Satisfied With Function) From Baseline to Month 36
NCT00218023 (2) [back to overview]Mean Percentage of Cocaine-positive Urines Over Course of 12 Week Treatment in Subgroup NOT Achieving Abstinence at Baseline
NCT00218023 (2) [back to overview]Mean Percentage of Cocaine-positive Urines Over Course of 12 Week Treatment in Subgroup Achieving Abstinence at Baseline
NCT00219284 (9) [back to overview]Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score From Baseline to Week 8
NCT00219284 (9) [back to overview]Change in the 39-item Parkinson's Disease Questionnaire (PDQ-39) Total Score From Baseline to End of Treatment
NCT00219284 (9) [back to overview]Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score From Baseline to Week 4
NCT00219284 (9) [back to overview]Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score From Baseline to End of Treatment
NCT00219284 (9) [back to overview]Change in the 39-item Parkinson's Disease Questionnaire (PDQ-39) Total Score From Baseline to Week 8
NCT00219284 (9) [back to overview]Change in the 39-item Parkinson's Disease Questionnaire (PDQ-39) Total Score From Baseline to Week 4
NCT00219284 (9) [back to overview]Change in Parkinson's Disease Quality of Life Score From Baseline to Week 8
NCT00219284 (9) [back to overview]Change in Parkinson's Disease Quality of Life Score From Baseline to Week 4
NCT00219284 (9) [back to overview]Change in Parkinson's Disease Quality of Life Score From Baseline to End of Treatment
NCT00335153 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Cognition Domain Score at Endpoint
NCT00335153 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Communication Domain Score at Endpoint
NCT00335153 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Emotional Well-Being Domain Score at Endpoint
NCT00335153 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Mobility Domain Score at Endpoint
NCT00335153 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Social Support Domain Score at Endpoint
NCT00335153 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Stigma Domain Score at Endpoint
NCT00335153 (34) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part I Score at Month 12
NCT00335153 (34) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score at Endpoint
NCT00335153 (34) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score at Endpoint
NCT00335153 (34) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Score at Endpoint
NCT00335153 (34) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Total Score at Endpoint
NCT00335153 (34) [back to overview]Change From Baseline in Zarit Burden Interview (ZBI) Total Score at Endpoint
NCT00335153 (34) [back to overview]Clinical Global Impression - Status (CGI-S) Score at Baseline and Clinical Global Impression - Improvement (CGI-I) Score at Endpoint
NCT00335153 (34) [back to overview]Number of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Deaths and Discontinuations Due to AEs
NCT00335153 (34) [back to overview]Number of Participants With Device Complications During the Nasojejunal (NJ) Test Period
NCT00335153 (34) [back to overview]Number of Participants With Device Complications During the Percutaneous Endoscopic Gastrostomy - With Jejunal Extension Tube (PEG-J) Surgery and Post-PEG Long Term Treatment Periods
NCT00335153 (34) [back to overview]Number of Participants With Potentially Clinically Significant Electrocardiogram (ECG) Parameters
NCT00335153 (34) [back to overview]Number of Participants With Potentially Clinically Significant Values for Clinical Chemistry Parameters
NCT00335153 (34) [back to overview]Number of Participants With Potentially Clinically Significant Values for Hematology Parameters
NCT00335153 (34) [back to overview]Number of Participants With Potentially Clinically Significant Vital Sign Parameters
NCT00335153 (34) [back to overview]Number of Participants With Sleep Attacks at Baseline
NCT00335153 (34) [back to overview]Number of Participants With Sleep Attacks During the Post-PEG Long-Term Treatment Period
NCT00335153 (34) [back to overview]Summary of Minnesota Impulsive Disorder Interview (MIDI) Assessment of Intense Impulsive Behavior at Baseline (BL) and During the Post-PEG Long-term Treatment (PPLT) Period
NCT00335153 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Summary Index at Endpoint
NCT00335153 (34) [back to overview]Number of Participants Taking at Least 1 Concomitant Medication During the Study
NCT00335153 (34) [back to overview]Number of Participants With Confirmed Cases of Melanoma
NCT00335153 (34) [back to overview]"Change From Baseline in Average Daily Normalized On Time With Troublesome Dyskinesia at Endpoint"
NCT00335153 (34) [back to overview]"Change From Baseline in Average Daily Off Time at Endpoint"
NCT00335153 (34) [back to overview]"Change From Baseline in Average Daily On Time Without Troublesome Dyskinesia at Endpoint"
NCT00335153 (34) [back to overview]Change From Baseline in Abnormal Involuntary Movement Scale (AIMS) Total Score at Endpoint
NCT00335153 (34) [back to overview]Change From Baseline in EuroQol Quality of Life Scale (EQ-5D) Summary Index at Endpoint
NCT00335153 (34) [back to overview]Change From Baseline in EuroQol Quality of Life Scale (EQ-5D) Visual Analogue Scale (VAS) at Endpoint
NCT00335153 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Activities of Daily Living Domain Score at Endpoint
NCT00335153 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Bodily Discomfort Domain Score at Endpoint
NCT00357994 (24) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Questions 32, 33, and 34 at Week 12
NCT00357994 (24) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Score at Week 12
NCT00357994 (24) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Total Score at Week 12
NCT00357994 (24) [back to overview]Change From Baseline in UPDRS Part III Score at Week 12
NCT00357994 (24) [back to overview]Change From Baseline in Zarit Burden Interview (ZBI) Total Score at Week 12
NCT00357994 (24) [back to overview]Clinical Global Impression - Status (CGI-S) Score at Baseline and Clinical Global Impression - Improvement (CGI-I) Score at Week 12
NCT00357994 (24) [back to overview]Employment Impairment (EMP) I Status at Baseline
NCT00357994 (24) [back to overview]"Change From Baseline in Average Daily Normalized On Time Without Troublesome Dyskinesia at Week 12"
NCT00357994 (24) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part I Score at Week 12
NCT00357994 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Summary Index at Week 12
NCT00357994 (24) [back to overview]"Change From Baseline in Average Daily Normalized On Time With Troublesome Dyskinesia at Week 12"
NCT00357994 (24) [back to overview]Change From Baseline in EuroQual Quality of Life - 5 Dimensions (EQ-5D) Summary Index at Week 12
NCT00357994 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Activities of Daily Living Domain Score at Week 12
NCT00357994 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Bodily Discomfort Domain Score at Week 12
NCT00357994 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Cognition Domain Score at Week 12
NCT00357994 (24) [back to overview]"Change From Baseline to Week 12 in Average Daily Normalized Off Time"
NCT00357994 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Communication Domain Score at Week 12
NCT00357994 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Emotional Well-Being Domain Score at Week 12
NCT00357994 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Mobility Domain Score at Week 12
NCT00357994 (24) [back to overview]Change From Baseline in EuroQol Quality of Life Scale (EQ-5D) Visual Analogue Scale (VAS) at Week 12
NCT00357994 (24) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score at Week 12
NCT00357994 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Stigma Domain Score at Week 12
NCT00357994 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Social Support Domain Score at Week 12
NCT00357994 (24) [back to overview]Employment Impairment (EMP) II Status at Week 12
NCT00360568 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Summary Index at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part I Score at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Score at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Total Score at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in Zarit Burden Interview (ZBI) Total Score at Endpoint
NCT00360568 (34) [back to overview]Clinical Global Impression - Status (CGI-S) Score at Baseline and Clinical Global Impression - Improvement (CGI-I) Score at Endpoint
NCT00360568 (34) [back to overview]Number of Participants With Adverse Events (AEs), Serious AEs (SAEs), Deaths and Discontinuations Due to AEs
NCT00360568 (34) [back to overview]Number of Participants With Clinically Significant Neurological Examination Findings
NCT00360568 (34) [back to overview]Number of Participants With Device Complications
NCT00360568 (34) [back to overview]Number of Participants With Potentially Clinically Significant Electrocardiogram (ECG) Parameters
NCT00360568 (34) [back to overview]Number of Participants With Potentially Clinically Significant Values for Clinical Chemistry Parameters
NCT00360568 (34) [back to overview]Number of Participants With Potentially Clinically Significant Values for Hematology Parameters
NCT00360568 (34) [back to overview]Number of Participants With Potentially Clinically Significant Vital Sign Parameters
NCT00360568 (34) [back to overview]Number of Participants With Sleep Attacks at Baseline and Endpoint
NCT00360568 (34) [back to overview]Summary of Minnesota Impulsive Disorder Interview (MIDI) Assessment of Intense Impulsive Behavior at Baseline (BL) and Post-baseline (PBL)
NCT00360568 (34) [back to overview]Columbia-Suicide Severity Rating Scale (C-SSRS) Findings
NCT00360568 (34) [back to overview]Number of Participants Taking at Least 1 Concomitant Medication During the Study
NCT00360568 (34) [back to overview]Number of Participants With Confirmed Cases of Melanoma
NCT00360568 (34) [back to overview]"Change From Baseline in Average Daily Normalized On Time With Troublesome Dyskinesia at Endpoint"
NCT00360568 (34) [back to overview]"Change From Baseline in Average Daily Off Time at Endpoint"
NCT00360568 (34) [back to overview]"Change From Baseline in Average Daily On Time Without Troublesome Dyskinesia at Month 12"
NCT00360568 (34) [back to overview]Change From Baseline in Abnormal Involuntary Movement Scale (AIMS) Total Score at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in EuroQol Quality of Life Scale (EQ-5D) Summary Index at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in EuroQol Quality of Life Scale (EQ-5D) Visual Analogue Scale (VAS) at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Activities of Daily Living Domain Score at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Bodily Discomfort Domain Score at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Cognition Domain Score at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Communication Domain Score at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Emotional Well-Being Domain Score at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Mobility Domain Score at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Social Support Domain Score at Endpoint
NCT00360568 (34) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Stigma Domain Score at Endpoint
NCT00391898 (7) [back to overview]Change in the UPDRS Part I (Mentation, Behavior, and Mood) Score From Baseline to Month 3
NCT00391898 (7) [back to overview]Change in the Unified Parkinson's Disease Rating Scale (UPDRS) Part II (Activities of Daily Living [ADL]) Score From Baseline to Month 3
NCT00391898 (7) [back to overview]Change in the 39-item Parkinson's Disease Questionnaire (PDQ-39) Total Score From Baseline to Month 3
NCT00391898 (7) [back to overview]Patient and Investigator Global Evaluation of the Patient
NCT00391898 (7) [back to overview]Change on the QUICK Questionnaire (QQ) Score From Baseline to Month 3
NCT00391898 (7) [back to overview]Change in the UPDRS Part IV (Complications of Therapy) Score From Baseline to Month 3
NCT00391898 (7) [back to overview]Change in the UPDRS Part III (Motor Function) Score From Baseline to Month 3
NCT00547911 (7) [back to overview]Plasma Norepinephrine Concentrations After 400 mg of Droxidopa + 200 mg of Either Placebo, Carbidopa, or Entacapone
NCT00547911 (7) [back to overview]Plasma DHPG Concentrations After 400 mg of Droxidopa + 200 mg of Either Placebo, Carbidopa, or Entacapone
NCT00547911 (7) [back to overview]Plasma LDOPS Concentrations After 400 mg of Droxidopa + 200 mg of Either Placebo, Carbidopa, or Entacapone
NCT00547911 (7) [back to overview]Systolic Blood Pressures After 400 mg of Droxidopa + 200 mg of Either Placebo, Carbidopa, or Entacapone
NCT00547911 (7) [back to overview]Diastolic Blood Pressures After 400 mg of Droxidopa + 200 mg of Either Placebo, Carbidopa, or Entacapone
NCT00547911 (7) [back to overview]Heart Rate After 400 mg of Droxidopa + 200 mg of Either Placebo, Carbidopa, or Entacapone
NCT00547911 (7) [back to overview]Plasma DHMA Concentrations After 400 mg of Droxidopa + 200 mg of Either Placebo, Carbidopa, or Entacapone
NCT00590122 (1) [back to overview]"Measurement of Time in Minutes From When a Patient Was in a Clinical Off State, Took Their Medication and Went Into a Clinical on State"
NCT00642356 (2) [back to overview]Change From Baseline on the Motor Score of the Quantitative Wearing-Off Questionnaire 9 Item (QWOQ-9)
NCT00642356 (2) [back to overview]Change From Baseline on the Non-motor Score of the Quantitative Wearing-Off Questionnaire 9 Item (QWOQ-9)
NCT00660387 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Communication Domain Score at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Emotional Well-Being Domain Score at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Mobility Domain Score at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Social Support Domain Score at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Stigma Domain Score at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Summary Index at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part I Score at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Questions 32, 33, and 34 at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Total Score at Week 12
NCT00660387 (24) [back to overview]Employment Impairment (EMP) II Status at Week 12
NCT00660387 (24) [back to overview]Employment Impairment (EMP) I Status at Baseline
NCT00660387 (24) [back to overview]Change From Baseline in EuroQual Quality of Life - 5 Dimensions (EQ-5D) Summary Index at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in Zarit Burden Interview (ZBI) Total Score at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in UPDRS Part III Score at Week 12
NCT00660387 (24) [back to overview]Clinical Global Impression - Status (CGI-S) Score at Baseline and Clinical Global Impression - Improvement (CGI-I) Score at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Score at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in EuroQol Quality of Life Scale (EQ-5D) Visual Analogue Scale (VAS) at Week 12
NCT00660387 (24) [back to overview]"Change From Baseline to Week 12 in Average Daily Normalized Off Time"
NCT00660387 (24) [back to overview]"Change From Baseline in Average Daily Normalized On Time Without Troublesome Dyskinesia at Week 12"
NCT00660387 (24) [back to overview]"Change From Baseline in Average Daily Normalized On Time With Troublesome Dyskinesia at Week 12"
NCT00660387 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Cognition Domain Score at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Bodily Discomfort Domain Score at Week 12
NCT00660387 (24) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Activities of Daily Living Domain Score at Week 12
NCT00660673 (22) [back to overview]Number of Participants Who Developed Melanoma
NCT00660673 (22) [back to overview]"Change in Average Daily On Time Without Troublesome Dyskinesia Based on the Parkinson's Disease Symptom Diary at End of Treatment"
NCT00660673 (22) [back to overview]"Change in Average Daily On Time With Troublesome Dyskinesia Based on the Parkinson's Disease Symptom Diary at End of Treatment"
NCT00660673 (22) [back to overview]"Change in Average Daily Off Time Based on the Parkinson's Disease Symptom Diary at End of Treatment"
NCT00660673 (22) [back to overview]Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Score at End of Treatment
NCT00660673 (22) [back to overview]Number of Participants Receiving Concomitant Anti-Parkinson's Disease Medications by Treatment Year
NCT00660673 (22) [back to overview]Number of Participants With Vitamin Levels Outside of the Normal Range
NCT00660673 (22) [back to overview]Number of Participants With Treatment-emergent Adverse Events of Special Interest (TE AESI)
NCT00660673 (22) [back to overview]Number of Participants With Treatment-emergent Adverse Events
NCT00660673 (22) [back to overview]Number of Participants With Sleep Attacks
NCT00660673 (22) [back to overview]Number of Participants With Potentially Clinically Significant Vital Sign Values
NCT00660673 (22) [back to overview]Number of Participants With Potentially Clinically Significant Hematology Laboratory Values
NCT00660673 (22) [back to overview]Number of Participants With Potentially Clinically Significant Chemistry Laboratory Values
NCT00660673 (22) [back to overview]Number of Participants With Intense Impulsive Behavior
NCT00660673 (22) [back to overview]Number of Participants With Device Complications
NCT00660673 (22) [back to overview]Number of Participants With Any Suicidal Ideation or Behavior
NCT00660673 (22) [back to overview]Change in Unified Parkinson's Disease Rating Scale (UPDRS) Total Score at End of Treatment
NCT00660673 (22) [back to overview]Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Dyskinesia Score at End of Treatment
NCT00660673 (22) [back to overview]Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score at End of Treatment
NCT00660673 (22) [back to overview]Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score at End of Treatment
NCT00660673 (22) [back to overview]Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part I Score at End of Treatment
NCT00660673 (22) [back to overview]Change in Parkinson's Disease Questionnaire (PDQ-39) Scores at End of Treatment
NCT00685919 (8) [back to overview]Supine Plasma Renin Activity 2 Hours After the Last Dose of Placebo or Carbidopa
NCT00685919 (8) [back to overview]Systolic Blood Pressure Measured at 8 Hours After the Last Dose of Placebo or Carbidopa
NCT00685919 (8) [back to overview]24 Hour Urinary Catecholamine (DOPA) Excretion During Treatment Normalized to Creatinine
NCT00685919 (8) [back to overview]24 Hour Urinary Catecholamine (Dopamine) Excretion During Treatment Normalized to Creatinine
NCT00685919 (8) [back to overview]24 Hour Urinary Sodium Excretion During Treatment Normalized to Creatinine
NCT00685919 (8) [back to overview]Plasma Catecholamines (DOPA) After the Last Dose of Placebo or Carbidopa
NCT00685919 (8) [back to overview]Plasma Catecholamines (Norepinephrine) After the Last Dose of Placebo or Carbidopa
NCT00685919 (8) [back to overview]Plasma Sodium After the Last Dose of Placebo or Carbidopa
NCT00715520 (6) [back to overview]Aim 1: Mean Parameter Estimate for Maximal Motor Evoked Potential (MEPmax) Derived From Stimulus Response Curves (SRC)
NCT00715520 (6) [back to overview]Aim 1: Mean Peak Acceleration of Wrist Extension Movements
NCT00715520 (6) [back to overview]Aim 2: Mean Peak Acceleration for rTMS Treatment With Respect to Frequency
NCT00715520 (6) [back to overview]Aim 2: Mean Peak Acceleration of Wrist Extension Movements With Respect to Pulse
NCT00715520 (6) [back to overview]Aim 2: Mean Sum of Normalized Motor Evoked Potentials (MEPs) for rTMS Treatment With Respect to Frequency
NCT00715520 (6) [back to overview]Aim 2: Mean Sum of Normalized Motor Evoked Potentials (MEPs) With Respect to Pulse
NCT00789672 (13) [back to overview]Mean Amblyopic Eye Visual Acuity Letter Scores at 9 Weeks After Starting Levodopa
NCT00789672 (13) [back to overview]Mean Amblyopic Eye Visual Acuity Letter Scores at 4 Weeks Post Enrollment
NCT00789672 (13) [back to overview]Mean Amblyopic Eye Visual Acuity Letter Scores at 10 Weeks After Stopping Levodopa
NCT00789672 (13) [back to overview]Distribution of Amblyopic Eye Visual Acuity Letter Scores at 4 Weeks After Enrollment
NCT00789672 (13) [back to overview]Distribution of Amblyopic Eye Visual Acuity Letter Scores at 9 Weeks After Starting Levodopa
NCT00789672 (13) [back to overview]Distribution of Amblyopic Eye Visual Acuity Letter Scores at 10 Weeks After Stopping Levodopa
NCT00789672 (13) [back to overview]Mean Change in Amblyopic Eye Visual Acuity Letter Scores at 4 Weeks Post Enrollment
NCT00789672 (13) [back to overview]Mean Change in Amblyopic Eye Visual Acuity Letter Scores at 10 Weeks After Stopping Levodopa
NCT00789672 (13) [back to overview]Distribution of Change in Amblyopic Eye Visual Acuity Scores at 10 Weeks After Stopping Levodopa
NCT00789672 (13) [back to overview]Distribution of Change in Amblyopic Eye Visual Acuity Scores at 4 Weeks Post Enrollment
NCT00789672 (13) [back to overview]Distribution of Change in Amblyopic Eye Visual Acuity Scores at 9 Weeks After Starting Levodopa
NCT00789672 (13) [back to overview]Tolerability of Study Medication-Adverse Event Reporting
NCT00789672 (13) [back to overview]Mean Change in Amblyopic Eye Visual Acuity Letter Scores at 9 Weeks After Starting Levodopa
NCT00829439 (1) [back to overview]Maximum Dose of Levodopa/Carbidopa That Can be Tolerated (Without Any Dose Limiting Toxicity) by at Least 3 Subjects.
NCT00845000 (4) [back to overview]Mean Peak Walking Speed
NCT00845000 (4) [back to overview]Mean Peak Dyskinesia Score
NCT00845000 (4) [back to overview]Mean Peak Finger Tapping Score
NCT00845000 (4) [back to overview]Mean Peak Tremor Score
NCT00869791 (7) [back to overview]Result Summary of Day 1 Dyskinesia Evaluated by Investigator Assessment for Each Treatment Period
NCT00869791 (7) [back to overview]Pharmacokinetics Measurements to Determine Tmax for Levodopa and Carbidopa Plasma Concentrations From Samples Collected Pre-dose and at Different Time Points on Day 1 and Day 8 of Periods 1 and 2 of Both Treatment Arms.
NCT00869791 (7) [back to overview]Pharmacokinetics Measurements to Determine Cmax for Carbidopa (CD) and Levodopa (LD) Plasma Concentrations From Samples Collected Pre-dose and at Different Time Points on Day 1 and Day 8 of Periods 1 and 2 of Both Treatment Arms.
NCT00869791 (7) [back to overview]Pharmacokinetics Measurements to Determine Area Under the Concentration-time Curve for the Dosing Interval for LD and CD Concentrations From Blood Collected Pre-dose and at Different Time Points on Day 1 and Day 8 of Periods 1 and 2 of Treatment Arms.
NCT00869791 (7) [back to overview]"Off Time Hours Reported by Subjects Using Parkinson's Patient Diary"
NCT00869791 (7) [back to overview]8-Hour Efficacy Using Day 1 Unified Parkinson's Disease Rating Scale Part III Score
NCT00869791 (7) [back to overview]8-Hour Efficacy Using Day 1 Tapping
NCT00880620 (2) [back to overview]Change From Baseline in the Sum of UPDRS Part II + UPDRS Part III at Week 30
NCT00880620 (2) [back to overview]Summary of Change From Baseline to End of Study in Mean Parkinson's Disease Questionnaire-39 (PDQ-39) Score
NCT00974974 (3) [back to overview]"Percentage of Off Time During Waking Hours at End of Study"
NCT00974974 (3) [back to overview]"On Time Without Troublesome Dyskinesia"
NCT00974974 (3) [back to overview]"Off Time"
NCT01096186 (3) [back to overview]Patient Global Impression (PGI)
NCT01096186 (3) [back to overview]Total UPDRS Parts I-IV
NCT01096186 (3) [back to overview]Change From Baseline in the Sum of UPDRS Part II + UPDRS Part III
NCT01130493 (5) [back to overview]"Total OFF Time During Waking Hours"
NCT01130493 (5) [back to overview]"Total On With No Troublesome Dyskinesia"
NCT01130493 (5) [back to overview]Subject Preference
NCT01130493 (5) [back to overview]UPDRS Part II Plus Part III
NCT01130493 (5) [back to overview]"Percentage of OFF Time During Waking Hours"
NCT01190813 (43) [back to overview]Distribution of Amblyopic Eye Visual Acuity at 18 Weeks
NCT01190813 (43) [back to overview]Distribution of Amblyopic Eye Visual Acuity Change From Baseline
NCT01190813 (43) [back to overview]Distribution of Amblyopic Eye Visual Acuity Change From Baseline at 10 Weeks
NCT01190813 (43) [back to overview]Distribution of Amblyopic Eye Visual Acuity Change From Baseline at 16 Weeks
NCT01190813 (43) [back to overview]Distribution of Amblyopic Eye Visual Acuity Change From Baseline at 26 Weeks
NCT01190813 (43) [back to overview]Distribution of Amblyopic Eye Visual Acuity Change From Baseline at 4 Weeks
NCT01190813 (43) [back to overview]Distribution of Fellow Eye Visual Acuity at 18 Weeks
NCT01190813 (43) [back to overview]Amblyopia Resolution at 16 Weeks
NCT01190813 (43) [back to overview]Distribution of Fellow Eye Visual Acuity Change From Baseline at 18 Weeks
NCT01190813 (43) [back to overview]Amblyopic Eye Visual Acuity Improvement Treatment Group Comparison at 16 Weeks
NCT01190813 (43) [back to overview]Distribution of Fellow Eye Visual Acuity Change From Baseline at 26 Weeks
NCT01190813 (43) [back to overview]Mean Systemic Adverse Events
NCT01190813 (43) [back to overview]Amblyopia Resolution at 18 Weeks
NCT01190813 (43) [back to overview]Amblyopia Resolution at 26 Weeks
NCT01190813 (43) [back to overview]Amblyopia Resolutionat 4 Weeks
NCT01190813 (43) [back to overview]Amblyopic Eye Visual Acuity Improvement Treatment Group Comparison at 10 Weeks
NCT01190813 (43) [back to overview]Amblyopia Resolution at 10 Weeks
NCT01190813 (43) [back to overview]Mean Parent Symptom Survey Score at 4 Weeks
NCT01190813 (43) [back to overview]Mean Parent Symptom Survey Score at 26 Weeks
NCT01190813 (43) [back to overview]Mean Parent Symptom Survey Score at 18 Weeks
NCT01190813 (43) [back to overview]Mean Parent Symptom Survey Score at 16 Weeks
NCT01190813 (43) [back to overview]Mean Parent Symptom Survey Score at 10 Weeks
NCT01190813 (43) [back to overview]Mean Fellow Eye Visual Acuity Change From Baseline at 26 Weeks
NCT01190813 (43) [back to overview]Mean Fellow Eye Visual Acuity Change From Baseline at 18 Weeks
NCT01190813 (43) [back to overview]Mean Fellow Eye Visual Acuity at 26 Weeks
NCT01190813 (43) [back to overview]Mean Fellow Eye Visual Acuity at 18 Weeks
NCT01190813 (43) [back to overview]Mean Child Symptom Survey Score at Enrollment
NCT01190813 (43) [back to overview]Mean Child Symptom Survey Score at 4 Weeks
NCT01190813 (43) [back to overview]Mean Child Symptom Survey Score at 26 Weeks
NCT01190813 (43) [back to overview]Mean Amblyopic Eye Visual Acuity at 18 Weeks
NCT01190813 (43) [back to overview]Mean Amblyopic Eye Visual Acuity Change From Baseline
NCT01190813 (43) [back to overview]Mean Change in Amblyopic Eye Visual Acuity From Baseline at 10 Weeks
NCT01190813 (43) [back to overview]Mean Change in Amblyopic Eye Visual Acuity From Baseline at 16 Weeks
NCT01190813 (43) [back to overview]Distribution of Fellow Eye Visual Acuity at 26 Weeks
NCT01190813 (43) [back to overview]Mean Change in Amblyopic Eye Visual Acuity From Baseline at 26 Weeks
NCT01190813 (43) [back to overview]Mean Change in Amblyopic Eye Visual Acuity From Baseline at 4 Weeks
NCT01190813 (43) [back to overview]Mean Parent Symptom Survey Score at Enrollment
NCT01190813 (43) [back to overview]Amblyopic Eye Visual Acuity Improvement Treatment Group Comparison at 18 Weeks
NCT01190813 (43) [back to overview]Mean Child Symptom Survey Score at 10 Weeks
NCT01190813 (43) [back to overview]Mean Child Symptom Survey Score at 16 Weeks
NCT01190813 (43) [back to overview]Mean Child Symptom Survey Score at 18 Weeks
NCT01190813 (43) [back to overview]Amblyopic Eye Visual Acuity Improvement Treatment Group Comparison at 26 Weeks
NCT01190813 (43) [back to overview]Amblyopic Eye Visual Acuity Improvement Treatment Group Comparison at 4 Weeks
NCT01212484 (3) [back to overview]Composite Daily Score
NCT01212484 (3) [back to overview]Number of Episodes of Daily Nausea
NCT01212484 (3) [back to overview]24 Hour Dopamine Levels
NCT01227655 (4) [back to overview]UPDRS (Unified Parkinson's Disease Rating Scale) Sections I (ON), II (ON and OFF), and III (ON)
NCT01227655 (4) [back to overview]Non-motor Symptoms Scale (NMSS)
NCT01227655 (4) [back to overview]Efficacy of 2 BIA 9-1067 (25 mg, and 50 mg) Compared With Placebo, When Administered With the Existing Treatment of L-DOPA Plus a DDCI (DOPA Decarboxylase Inhibitor)
NCT01227655 (4) [back to overview]Parkinson's Disease Sleep Scale (PDSS)
NCT01393457 (2) [back to overview]Number of Participants Who Completed the 10 Week Trial
NCT01393457 (2) [back to overview]Cocaine Use Based on Urine Drug Screening
NCT01399905 (2) [back to overview]AUC of Levodopa Plasma Concentrations Above Baseline
NCT01399905 (2) [back to overview]Area Under the Curve (AUC) of Tapping Speed
NCT01429077 (1) [back to overview]Language Quotient (LQ) on the Western Aphasia Battery
NCT01468012 (1) [back to overview]Retention in Treatment
NCT01470859 (5) [back to overview]Unified Parkinson's Disease Rating Score (UPDRS II, III)
NCT01470859 (5) [back to overview]Patients With Clinical Improvement as Evaluated by Global Impression Scale (CGI).
NCT01470859 (5) [back to overview]Parkinson's Disease Questionnaire (PDQ39)
NCT01470859 (5) [back to overview]Longitudinal Change of Brain Network Activity
NCT01470859 (5) [back to overview]Hoehn&Yahr (H&Y) Staging
NCT01479127 (24) [back to overview]Number of Participants With Potentially Clinically Significant 12-lead Electrocardiogram (ECG) Results During the ABT-SLV187 Treatment Period
NCT01479127 (24) [back to overview]"Mean Change From Baseline to the End of Treatment in Percentage of Ratings in the Normal State on the Treatment Response Scale (TRS) I"
NCT01479127 (24) [back to overview]Number of Participants With Potentially Clinically Significant (PCS) Vital Signs Results During the ABT-SLV187 Treatment Period
NCT01479127 (24) [back to overview]Modified Hoehn and Yahr Staging at Baseline and End of Treatment
NCT01479127 (24) [back to overview]Number of Participants With Potentially Clinically Significant (PCS) Hematology Results During the ABT-SLV187 Treatment Period
NCT01479127 (24) [back to overview]Number of Participants With PCS Values in Special Laboratory Parameters During the ABT-SLV187 Treatment Period
NCT01479127 (24) [back to overview]Number of Participants With PCS Blood Biochemistry Results During the ABT-SLV187 Treatment Period
NCT01479127 (24) [back to overview]Number of Participants With AEs, SAEs, and AEs Leading to Discontinuation During the ABT-SLV187 Treatment Period
NCT01479127 (24) [back to overview]Number of Participants With Adverse Events (AEs), Serious AEs (SAEs), and AEs Leading to Discontinuation During the Run-in Period
NCT01479127 (24) [back to overview]Mean Change From Baseline to the End of Treatment in UPDRS Total Scores and Subscores
NCT01479127 (24) [back to overview]Degree of Fluctuation (2-12 Hours) After Administration of Oral L/C Tablets and Intra-jejunal Administration of ABT-SLV187
NCT01479127 (24) [back to overview]Change From Baseline to the End of Treatment in the Japanese Version of Parkinson's Disease Questionnaire 39 (PDQ-39) Total Score and Domain Scores
NCT01479127 (24) [back to overview]Clinical Global Impression - Severity (CGI-S) Score at Baseline and Clinical Global Impression - Improvement (CGI-I) Score at Baseline and End of Treatment
NCT01479127 (24) [back to overview]Change From Baseline to the End of Treatment in Parkinson's Disease Diary Assessment
NCT01479127 (24) [back to overview]Time to Reach Peak Plasma Concentration (Tmax) After Administration of Oral Levodopa/Carbidopa (L/C) Tablets and Intra-jejunal Administration of ABT-SLV187
NCT01479127 (24) [back to overview]Number of Participants With Product Quality Complaints (PQC) During the ABT-SLV187 Treatment Period
NCT01479127 (24) [back to overview]Peak Plasma Concentration (Cmax), Average Plasma Concentration (Cavg), Trough Plasma Concentration (Cmin), and Cmin Within 2 and 12 Hours (Cmin [2-12 Hours]) After Administration of Oral L/C Tablets and Intra-jejunal Administration of ABT-SLV187
NCT01479127 (24) [back to overview]Schwab and England Activities of Daily Living Scale at Baseline and End of Treatment
NCT01479127 (24) [back to overview]Number of Participants With Potentially Clinically Significant Urinalysis Results During the ABT-SLV187 Treatment Period
NCT01479127 (24) [back to overview]Baseline and Endpoint (End of Treatment) Video Scoring of Unified Parkinson's Disease Rating Scale (UPDRS) Items and Dyskinesia
NCT01479127 (24) [back to overview]AUC0-12/Dose0-12, AUC0-16/Dose0-16 After Administration of Oral L/C Tablets and Intra-jejunal Administration of ABT-SLV187
NCT01479127 (24) [back to overview]"Mean Change From Baseline to the End of Treatment in Percentage of Ratings in the OFF and Dyskinesia States on the TRS I and the Normal, OFF, and Dyskinesia States on the TRS II"
NCT01479127 (24) [back to overview]Ratio of Metabolite 3-OMD to Levodopa (M/P [AUC0-12]) After Administration of Oral L/C Tablets and Intra-jejunal Administration of ABT-SLV187
NCT01479127 (24) [back to overview]The Area Under the Concentrations-time Curve From 0 to 12 and 0 to 16 Hours (AUC0-12, AUC0-16) After Administration of Oral L/C Tablets and Intra-jejunal Administration of ABT-SLV187
NCT01519284 (4) [back to overview]AUC0-∞ - Area Under the Plasma Concentration-time Curve (AUC) of Levodopa From Time Zero to Infinity
NCT01519284 (4) [back to overview]AUC0-t - Area Under the Plasma Concentration-time Curve (AUC) of Levodopa From Time Zero to the Last Sampling Time at Which the Drug Concentration Was at or Above the Lower Limit of Quantification.
NCT01519284 (4) [back to overview]Cmax - Maximum Plasma Concentration of Levodopa
NCT01519284 (4) [back to overview]Tmax - Time to Reach Maximum Plasma Concentration of Levodopa
NCT01528592 (1) [back to overview]Correlation Coefficient Between UPDRS III Score and Independent Components Analysis Network Strength in Left Parietal Cortex.
NCT01533077 (16) [back to overview]AUC0-t - Area Under the Plasma Concentration-time Curve to Last Measurable Time Point (L-DOPA)
NCT01533077 (16) [back to overview]Cmax - Maximum Observed Plasma Concentration (3-OMD)
NCT01533077 (16) [back to overview]Cmax - Maximum Observed Plasma Concentration (BIA 9-1067)
NCT01533077 (16) [back to overview]Cmax - Maximum Observed Plasma Concentration (Carbidopa)
NCT01533077 (16) [back to overview]Cmax - Maximum Observed Plasma Concentration (L-DOPA)
NCT01533077 (16) [back to overview]AUC0-t - Area Under the Plasma Concentration-time Curve to Last Measurable Time Point (Carbidopa)
NCT01533077 (16) [back to overview]AUC0-∞ - Area Under the Plasma Concentration-time Curve Extrapolated to Infinity (3-OMD)
NCT01533077 (16) [back to overview]Tmax - Time of Occurrence of Cmax Maximum Observed Plasma Concentration (L-DOPA)
NCT01533077 (16) [back to overview]Tmax - Time to Occurrence of Cmax (3-OMD)
NCT01533077 (16) [back to overview]Tmax - Time to Occurrence of Cmax (BIA 9-1067)
NCT01533077 (16) [back to overview]Tmax - Time to Occurrence of Cmax (Carbidopa)
NCT01533077 (16) [back to overview]AUC0-∞ - Area Under the Plasma Concentration-time Curve (AUC) From Time Zero to Infinity (L-DOPA)
NCT01533077 (16) [back to overview]AUC0-∞ - Area Under the Plasma Concentration-time Curve Extrapolated to Infinity (BIA 9-1067)
NCT01533077 (16) [back to overview]AUC0-∞ - Area Under the Plasma Concentration-time Curve Extrapolated to Infinity (Carbidopa)
NCT01533077 (16) [back to overview]AUC0-t - Area Under the Plasma Concentration-time Curve to Last Measurable Time Point (3-OMD)
NCT01533077 (16) [back to overview]AUC0-t - Area Under the Plasma Concentration-time Curve to Last Measurable Time Point (BIA 9-1067)
NCT01533116 (5) [back to overview]AUEC0-24 - Area Under the Effect-time Curve (AUEC) to 24 h Post-dose
NCT01533116 (5) [back to overview]tEmax - Time of Occurrence of Maximum Observed Effect on S-COMT Activity
NCT01533116 (5) [back to overview]AUC0-t - Area Under the Plasma Concentration-time Curve to Last Measurable Time Point
NCT01533116 (5) [back to overview]Tmax - Time to Maximum Plasma Concentration
NCT01533116 (5) [back to overview]Cmax - Maximum Plasma Concentration
NCT01568034 (3) [back to overview]AUC0-6 - Area Under the Plasma Concentration-time Curve From Time 0 to 6 Hours Post-dose (Day 3)
NCT01568034 (3) [back to overview]Cmax - Maximum Plasma Concentration Day 3
NCT01568034 (3) [back to overview]Tmax = Time to Cmax Day 3
NCT01568047 (3) [back to overview]AUC0-6 - Area Under the Plasma Concentration-time Curve (AUC) From Time Zero to to 6 h Postdose (AUC [0-6])
NCT01568047 (3) [back to overview]Tmax - Time to Observed Maximum Concentration
NCT01568047 (3) [back to overview]Cmax - Observed Maximum Concentration
NCT01568073 (4) [back to overview]Total UPDRS SCORE (I, II (ON), and III)
NCT01568073 (4) [back to overview]Efficacy of 3 BIA 9-1067 (5 mg, 25 mg, and 50 mg) Compared With 200 mg of Entacapone or Placebo,
NCT01568073 (4) [back to overview]Non-motor Symptoms Scale (NMSS)
NCT01568073 (4) [back to overview]Parkinson's Disease Sleep Scale (PDSS)
NCT01663935 (2) [back to overview]Contrast Sensitivity
NCT01663935 (2) [back to overview]Visual Acuity Change
NCT01736176 (37) [back to overview]Change From Baseline in NMSS Mood/Cognition Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in NMSS Perceptual Problems/Hallucinations Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in NMSS Sexual Function Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in NMSS Sleep/Fatigue Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in NMSS Urinary Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in NMSS Gastrointestinal Tract Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in Parkinson's Disease Questionnaire-39 Item (PDQ-39) Summary Index
NCT01736176 (37) [back to overview]Change From Baseline in PDQ-39 Activities of Daily Living Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in PDQ-39 Bodily Discomfort Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in PDQ-39 Cognition Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in PDQ-39 Communication Domain Score
NCT01736176 (37) [back to overview]Percentage of Participants With a Patient Global Impression of Change (PGIC) Response of Improved
NCT01736176 (37) [back to overview]Change From Baseline in PDQ-39 Emotional Well-Being Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in PDQ-39 Mobility Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in PDQ-39 Social Support Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in PDQ-39 Stigma Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in UPDRS Dyskinesia Items Score
NCT01736176 (37) [back to overview]Change From Baseline in UPDRS Part II: Activities of Daily Living (ADL) Score
NCT01736176 (37) [back to overview]Change From Baseline in UPDRS Part III: Motor Examination Score
NCT01736176 (37) [back to overview]Change From Baseline in UPDRS Part IV: Complications of Therapy Score
NCT01736176 (37) [back to overview]Change From Baseline in UPDRS Part V: Modified Hoehn and Yahr Staging Score
NCT01736176 (37) [back to overview]Number of Participants Who Used Healthcare Resources During the First 4 Weeks
NCT01736176 (37) [back to overview]"Change From Baseline in Mean Daily Normalized Off Time Based on Parkinson's Disease Diary"
NCT01736176 (37) [back to overview]Number of Participants Who Used Healthcare Resources Through Week 60
NCT01736176 (37) [back to overview]Number of Participants With Adverse Events
NCT01736176 (37) [back to overview]Change From Baseline in Cambridge Neuropsychological Test Automated Battery (CANTAB) Spatial Working Memory Between Errors Score at Week 12
NCT01736176 (37) [back to overview]Change From Baseline in CANTAB Spatial Working Memory Strategy Score at Week 12
NCT01736176 (37) [back to overview]Change From Baseline to Week 12 in the Non-Motor Symptom Scale (NMSS) Total Score
NCT01736176 (37) [back to overview]Change From Baseline to Week 60 in the Non-Motor Symptom Scale (NMSS) Total Score
NCT01736176 (37) [back to overview]Change From Baseline in UPDRS Part I: Mentation, Behavior, and Mood Score
NCT01736176 (37) [back to overview]"Change From Baseline in Mean Daily Normalized On Time Without Troublesome Dyskinesia Based on PD Diary"
NCT01736176 (37) [back to overview]Change From Baseline for Unified Parkinson's Disease Rating Scale (UPDRS) Total Score
NCT01736176 (37) [back to overview]Change From Baseline in Controlled Oral Word Association Test (COWAT) Verbal Fluency Scores at Week 60
NCT01736176 (37) [back to overview]Change From Baseline in Health-related Productivity
NCT01736176 (37) [back to overview]Change From Baseline in NMSS Attention/Memory Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in NMSS Cardiovascular Domain Score
NCT01736176 (37) [back to overview]Change From Baseline in NMSS Miscellaneous Domain Score
NCT01770145 (1) [back to overview]"Change From Baseline in Average Daily Time to on (TTO) by Subject Diary."
NCT01951105 (2) [back to overview]Number of Participants With 20% Reduction in Pain on the NRS Pain Intensity Scale
NCT01951105 (2) [back to overview]Percent of Residual Pain Stratified by Gender for Individuals Receiving Treatment
NCT01960842 (20) [back to overview]Unified Parkinson's Disease Rating Scale (UPDRS) Part IIl Score: Change From Baseline To The Final PEG-J Visit
NCT01960842 (20) [back to overview]"Average Daily Normalized Off Time: Change From Baseline To The Final PEG-J Visit"
NCT01960842 (20) [back to overview]Patient Global Impression of Change (PGI-C) Score at the Final PEG-J Visit
NCT01960842 (20) [back to overview]"Average Daily Normalized Off Time at Baseline and Each Visit: Change From Baseline To The Final PEG-J Visit"
NCT01960842 (20) [back to overview]"Average Daily Normalized Off Time Excluding Subjects Who Did Not Receive LCIG During the Entire PEG-J Period: Change From Baseline To The Final PEG-J Visit"
NCT01960842 (20) [back to overview]"Average Daily Normalized On Time With Troublesome Dyskinesia: Change From Baseline To The Final PEG-J Visit"
NCT01960842 (20) [back to overview]"Average Daily Normalized On Time Without Troublesome Dyskinesia: Change From Baseline To The Final PEG-J Visit"
NCT01960842 (20) [back to overview]Number of Participants With Potentially Clinically Significant Values for 12-lead Electrocardiogram (ECG)
NCT01960842 (20) [back to overview]Number of Participants With Potentially Clinically Significant Values for Clinical Chemistry Parameters
NCT01960842 (20) [back to overview]Clinical Global Impression - Change (CGI-I) Score at the Final PEG-J Visit
NCT01960842 (20) [back to overview]Number of Participants With Potentially Clinically Significant Values for Hematology Parameters
NCT01960842 (20) [back to overview]Number of Participants With Potentially Clinically Significant Vital Sign Parameters
NCT01960842 (20) [back to overview]Number of Participants With Treatment-emergent Adverse Events (TEAEs)
NCT01960842 (20) [back to overview]Parkinson's Disease Questionnaire (PDQ-39) Mobility, Emotional Well-Being, Stigma, Social Support, Cognition, Communication, and Bodily Discomfort Domain Scores: Change From Baseline To The Final PEG-J Visit
NCT01960842 (20) [back to overview]Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Score: Change From Baseline To The Final PEG-J Visit
NCT01960842 (20) [back to overview]Unified Parkinson's Disease Rating Scale (UPDRS) Total Score: Change From Baseline To The Final PEG-J Visit
NCT01960842 (20) [back to overview]Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score: Change From Baseline To The Final PEG-J Visit
NCT01960842 (20) [back to overview]Parkinson's Disease Questionnaire (PDQ-39) Summary Index: Change From Baseline To The Final PEG-J Visit
NCT01960842 (20) [back to overview]"Average Daily Normalized Off Time Including All PD Diaries Regardless if They Were Completed After the Subject Had Used a Concomitant Anti-Parkinsonian Medication: Change From Baseline To The Final PEG-J Visit"
NCT01960842 (20) [back to overview]Unified Parkinson's Disease Rating Scale (UPDRS) Part I Score: Change From Baseline To The Final PEG-J Visit
NCT02080819 (1) [back to overview]Cocaine Treatment Outcome
NCT02169414 (8) [back to overview]Tmax - Time to Reach Maximum Plasma Concentration of Levodopa (Levodopa/Benserazide)
NCT02169414 (8) [back to overview]AUC0-∞ - Area Under the Plasma Concentration-time Curve (AUC) of Levodopa From Time Zero to Infinity (Levodopa/Benserazide)
NCT02169414 (8) [back to overview]AUC0-∞ - Area Under the Plasma Concentration-time Curve (AUC) of Levodopa From Time Zero to Infinity (Levodopa/Carbidopa)
NCT02169414 (8) [back to overview]AUC0-t - Area Under the Plasma Concentration-time Curve (AUC) of Levodopa From Time Zero to the Last Sampling Time at Which the Drug Concentration Was at or Above the Lower Limit of Quantification. (Levodopa/Benserazide)
NCT02169414 (8) [back to overview]AUC0-t - Area Under the Plasma Concentration-time Curve (AUC) of Levodopa From Time Zero to the Last Sampling Time at Which the Drug Concentration Was at or Above the Lower Limit of Quantification. (Levodopa/Carbidopa)
NCT02169414 (8) [back to overview]Cmax - Maximum Plasma Concentration of Levodopa (Levodopa/Benserazide )
NCT02169414 (8) [back to overview]Cmax - Maximum Plasma Concentration of Levodopa (Levodopa/Carbidopa)
NCT02169414 (8) [back to overview]Tmax - Time to Reach Maximum Plasma Concentration of Levodopa (Levodopa/Carbidopa)
NCT02170376 (6) [back to overview]Cmax - Maximum Plasma Concentration of Levodopa
NCT02170376 (6) [back to overview]Tmax - Time of Occurrence of Maximum Plasma Concentration
NCT02170376 (6) [back to overview]t1/2 - Terminal Plasma Half-life
NCT02170376 (6) [back to overview]AUC0-t - Area Under the Plasma Concentration Versus Time Curve From Time Zero to the Time (t) Corresponding to the Last Quantifiable Concentration.
NCT02170376 (6) [back to overview]AUC0-5 - AUC Over 5 Hours
NCT02170376 (6) [back to overview]AUC0-∞ - Area Under the Concentration-time Curve From Time Zero up to Infinity With Extrapolation of the Terminal Phase
NCT02513485 (14) [back to overview]Digit Symbol Task Neurocognitive Test
NCT02513485 (14) [back to overview]Change in Motivation and Pleasure (MAP) Scale Score
NCT02513485 (14) [back to overview]Change in Functional Corticostriatal Connectivity
NCT02513485 (14) [back to overview]Beck Depression Inventory (BDI-II), Anhedonia Subscale Score
NCT02513485 (14) [back to overview]Profile of Mood States (POMS) Scale
NCT02513485 (14) [back to overview]The Trail Making Test (TMT) Neurocognitive Assessment
NCT02513485 (14) [back to overview]State-Trait Anxiety Inventory (STAI) State Scale
NCT02513485 (14) [back to overview]Snaith-Hamilton Pleasure Scale (SHAPS) Self-report Questionnaire
NCT02513485 (14) [back to overview]Reaction Time Task (CANTAB) Neurocognitive Test
NCT02513485 (14) [back to overview]Multidimensional Fatigue Inventory (MFI) Self-report Questionnaire
NCT02513485 (14) [back to overview]Correlation Coefficient Between Change in Corticostriatal Connectivity and Levels of Plasma C-reactive Protein and Other Immune Markers
NCT02513485 (14) [back to overview]Inventory of Depressive Symptoms-Self Report (IDS-SR) Questionnaire
NCT02513485 (14) [back to overview]Finger Tapping Task (FTT) Neurocognitive Test
NCT02513485 (14) [back to overview]Effort-Expenditure for Rewards Task (EEfRT) Neurocognitive Test
NCT02549092 (12) [back to overview]Patient Global Impression of Change (PGIC) Final Score
NCT02549092 (12) [back to overview]Clinical Global Impression of Change (CGI-C) Final Score
NCT02549092 (12) [back to overview]Change From Baseline to Week 26 in the Modified PDSS-2 Total Score
NCT02549092 (12) [back to overview]Change From Baseline to Week 26 in Parkinson's Disease Questionnaire (PDQ-8) Summary Index Score
NCT02549092 (12) [back to overview]Change From Baseline at Week 26 in King's PD Pain Scale (KPPS) Score
NCT02549092 (12) [back to overview]Change From Baseline at Week 26 in Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score
NCT02549092 (12) [back to overview]Change From Baseline at Week 26 in Parkinson's Anxiety Scale (PAS) Total Score
NCT02549092 (12) [back to overview]Change From Baseline at Week 26 in Geriatric Depression Scale (GDS-15) Score
NCT02549092 (12) [back to overview]Change From Baseline to Week 26 in the NMSS Total Score
NCT02549092 (12) [back to overview]Change From Baseline to Week 26 in the NMSS Domain Scores
NCT02549092 (12) [back to overview]Change From Baseline to Week 26 in the Modified PDSS-2 Domain Scores
NCT02549092 (12) [back to overview]Change From Baseline at Week 26 in UPDRS Parts I, III, and IV Score
NCT02553265 (15) [back to overview]Number of Participants Who Reported Adverse Events Related to Study Drug
NCT02553265 (15) [back to overview]Systolic Blood Pressure
NCT02553265 (15) [back to overview]Severity of Hypotension During an Active Stand Test
NCT02553265 (15) [back to overview]Number of Participants Who Reported Worsening of OH Symptoms or Dropped Out Because of Worsening OH While on Active Study Drug
NCT02553265 (15) [back to overview]Number of Participants With Abnormal Electrocardiographic Interval Patterns
NCT02553265 (15) [back to overview]Number of Participants Who Displayed Clinically Significant Values in Urine Safety Parameters
NCT02553265 (15) [back to overview]Number of Participants Who Displayed Clinical Significant Laboratory Values on CBC or Metabolic Panel
NCT02553265 (15) [back to overview]Morning Surge in Systolic BP on Awakening From Sleep (24-h)
NCT02553265 (15) [back to overview]Highest Systolic Blood Pressure
NCT02553265 (15) [back to overview]Heart Rate
NCT02553265 (15) [back to overview]Frequency of Worsening Symptoms Noted in the Patient's Diary
NCT02553265 (15) [back to overview]Coefficient of Systolic BP Variability (Daytime)
NCT02553265 (15) [back to overview]Average Systolic Blood Pressure Variability (Daytime)
NCT02553265 (15) [back to overview]Number of Participants With Significant Changes in Body Mass That Resulted in Discontinuation From the Study.
NCT02553265 (15) [back to overview]24-h Urinary Norepinephrine Excretion
NCT02577523 (9) [back to overview]Change in Morning UPDRS Part III (Motor) Scores
NCT02577523 (9) [back to overview]"Change in Daily OFF Time"
NCT02577523 (9) [back to overview]"Change in Daily Good ON Time as Assessed by a Blinded Rater"
NCT02577523 (9) [back to overview]CGI-Improvement (CGI-I) Score as Assessed by Investigator
NCT02577523 (9) [back to overview]"The Percentage of Subjects With Full ON at Approximately 08:00 and Approximately 09:00, as Determined by the Subject"
NCT02577523 (9) [back to overview]"Percentage of Subjects Who Achieved at Least Certain Percent Reduction in Average Daily Normalized OFF Time"
NCT02577523 (9) [back to overview]Change in UPDRS Part II (ADL) Scores
NCT02577523 (9) [back to overview]Change in PDSS-2 Total Score
NCT02577523 (9) [back to overview]Change in PDQ-39 Summary Index and the 8-dimension Scores
NCT02799381 (7) [back to overview]Mean Change From Baseline to Week 12 in Parkinson's Disease Questionnaire-8 (PDQ-8) Summary Index
NCT02799381 (7) [back to overview]Mean Change From Baseline to Week 12 in ON Time Without Troublesome Dyskinesia
NCT02799381 (7) [back to overview]Mean Change From Baseline to Week 12 in OFF Time
NCT02799381 (7) [back to overview]Mean Clinical Global Impression of Change (CGI-C) Score at Week 12
NCT02799381 (7) [back to overview]Mean Change From Baseline to Week 12 in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score (Motor Examination)
NCT02799381 (7) [back to overview]Mean Change From Baseline to Week 12 in Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score (Activities of Daily Living)
NCT02799381 (7) [back to overview]Mean Change From Baseline to Week 12 in Unified Dyskinesia Rating Scale (UDysRS) Total Score
NCT03055936 (3) [back to overview]Levodopa Peak Plasma Concentration (Cmax)
NCT03055936 (3) [back to overview]Levodopa Area Under the Concentration-time Curve From Time 0 to the 24 h PK Sample (AUC0-24) Time 0 to the 24 h PK Sample (AUC0-24)
NCT03055936 (3) [back to overview]Fluctuation of Levodopa Cmax/Cmin, Tau
NCT03115827 (4) [back to overview]Percent Compliance
NCT03115827 (4) [back to overview]Number of Subjects Who Develop an Adverse Event During the 7-week Treatment Period That is Determined to be Likely Related to the Study Medications.
NCT03115827 (4) [back to overview]Maximum Tolerated Dose
NCT03115827 (4) [back to overview]Change in Stop-Signal Reaction Time From Baseline to Week 7
NCT03541356 (15) [back to overview]Time to Response (Defined as Improvement of 30% in MDS-UPDRS Part III Score From Baseline)
NCT03541356 (15) [back to overview]Tmax of Carbidopa
NCT03541356 (15) [back to overview]"Subjective Time to ON as Evaluated by the Investigator"
NCT03541356 (15) [back to overview]Tmax of L-dopa
NCT03541356 (15) [back to overview]Area Under the Curve (AUC) of Change From Baseline in MDS-UPDRS Part III Scores
NCT03541356 (15) [back to overview]Cumulative Number of Responders (Defined as Improvement of 30% in MDS-UPDRS Part III Score From Baseline)
NCT03541356 (15) [back to overview]AUC0-2h for Carbidopa
NCT03541356 (15) [back to overview]AUC0-2hr for L-dopa
NCT03541356 (15) [back to overview]"Assessment of Time to ON as Evaluated by Subject Self-assessment"
NCT03541356 (15) [back to overview]Cmax of Carbidopa
NCT03541356 (15) [back to overview]Cmax of L-dopa
NCT03541356 (15) [back to overview]Duration of Response, Where Response is Defined as an Improvement of 30% in MDS-UPDRS Part III Score From Baseline.
NCT03541356 (15) [back to overview]Mean Maximum Change From Baseline in MDS-UPDRS Part III Score
NCT03541356 (15) [back to overview]Mean Change From Baseline in MDS-UPDRS Score Over 2 Hours for C1, C2, C3 and Change From Baseline at 30, 60, 90, 120 Minutes for C4, in MDS-UPDRS Part III Score
NCT03541356 (15) [back to overview]Number of Participants With Treatment Emergent Adverse Events
NCT03761030 (6) [back to overview]Single Task Gait Speed
NCT03761030 (6) [back to overview]Change From Baseline Hamilton Rating Scale for Depression 24-Item Scale to Study Completion (8 Weeks)
NCT03761030 (6) [back to overview]Pattern Comparison Test
NCT03761030 (6) [back to overview]Letter Comparison Test
NCT03761030 (6) [back to overview]Inventory of Depressive Symptomatology--Self Report (IDS-SR)
NCT03761030 (6) [back to overview]Digit Symbol Test
NCT04325503 (7) [back to overview]Wechsler Adult Intelligence System Digit Symbol Substitution Test
NCT04325503 (7) [back to overview]Mini Balance Evaluation Systems Test (Mini-BESTest)
NCT04325503 (7) [back to overview]Montreal Cognitive Assessment (MoCA)
NCT04325503 (7) [back to overview]Cognitive Z-score
NCT04325503 (7) [back to overview]Average Gait Speed
NCT04325503 (7) [back to overview]Movement Disorder Society Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part III Total
NCT04325503 (7) [back to overview]Short Activities-specific Balance Confidence Scale Score
NCT04380142 (18) [back to overview]Change From Baseline to Week 12 of the Double-Blind Treatment Period in Quality of Life Assessed by the EuroQol 5-Dimension Questionnaire (EQ-5D-5L) Summary Index
NCT04380142 (18) [back to overview]Number of Participants With Treatment-Emergent Adverse Events (TEAEs) During the Oral LD/CD Stabilization Period
NCT04380142 (18) [back to overview]Number of Participants With TEAEs During the Double-Blind Treatment Period
NCT04380142 (18) [back to overview]Number of Participants With Potentially Clinically Significant Changes From Baseline in Hematology, Chemistry, Urinalysis, Special Laboratory Parameters, Vital Signs, and Electrocardiograms (ECGs)
NCT04380142 (18) [back to overview]Number of Participants With Affirmative Responses on the Columbia-Suicide Severity Rating Scale (C-SSRS) Across All Study Post-Baseline Visits During the Double-Blind Treatment Period
NCT04380142 (18) [back to overview]Number of Participants With a Subscore > 5 For Questionnaire for Impulsive-Compulsive Disorders in Parkinson's Disease - Ration Scale (QUIP-RS) at Any Time During the Double-Blind Treatment Period
NCT04380142 (18) [back to overview]Number of Participants With Irritation Grade Numeric Grade >= 5 or Letter Grade >= D on the Infusion Site Irritation Scale Across All Study Post-Baseline Visits
NCT04380142 (18) [back to overview]Change From Baseline to Week 12 of the Double-Blind Treatment Period in Parkinson's Disease Sleep Scale-2 (PDSS-2) Total Score
NCT04380142 (18) [back to overview]Change From Baseline to Week 12 of the Double-Blind Treatment Period in Quality of Life Assessed by Parkinson's Disease Questionnaire 39 Item (PDQ-39) Summary Index Score
NCT04380142 (18) [back to overview]Change From Baseline to Week 12 of the Double-Blind Treatment Period in Movement Disorder Society - Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part II Score
NCT04380142 (18) [back to overview]"Change From Baseline to Week 12 of the Double-Blind Treatment Period in Average Daily Normalized Off Time (Hours)"
NCT04380142 (18) [back to overview]Change From Baseline to Week 12 of the Double-Blind Treatment Period in Interquartile Range of Bradykinesia Score (BK75-BK25) as Assessed by the PKG Wearable Device
NCT04380142 (18) [back to overview]"Change From Baseline to Week 12 of the Double-Blind Treatment Period in Average Daily Normalized On Time Without Dyskinesia (Hours)"
NCT04380142 (18) [back to overview]"Change From Baseline to Week 12 of the Double-Blind Treatment Period in Average Daily Normalized On Time Without Troublesome Dyskinesia"
NCT04380142 (18) [back to overview]"Early Morning Off Status (Morning Akinesia) at Week 12 of the Double-Blind Treatment Period"
NCT04380142 (18) [back to overview]Change From Baseline to Week 12 of the Double-Blind Treatment Period in Interquartile Range of Dyskinesia Score (DK75-DK25) as Assessed by the PKG Wearable Device
NCT04380142 (18) [back to overview]Change From Baseline to Week 12 of the Double-Blind Treatment Period in Median Bradykinesia Score (BK50) as Assessed by the Parkinson's KinetiGraph/Personal KinetiGraph (PKG) Wearable Device
NCT04380142 (18) [back to overview]Change From Baseline to Week 12 of the Double-Blind Treatment Period in Median Dyskinesia Score (DK50) as Assessed by the PKG Wearable Device
NCT04493320 (14) [back to overview][18F]-FDOPA PET Measure in Striatal Region of Interest
NCT04493320 (14) [back to overview]Change in Digit Symbol Test Following Step 1
NCT04493320 (14) [back to overview]Change in Quick Inventory for Depressive Symptomatology (QIDS) Following Step 2
NCT04493320 (14) [back to overview]Change in Quick Inventory for Depressive Symptomatology (QIDS) Following Step 1
NCT04493320 (14) [back to overview]Change in Pattern Comparison Test Following Step 2
NCT04493320 (14) [back to overview]Change in Pattern Comparison Test Following Step 1
NCT04493320 (14) [back to overview]Change in Digit Symbol Test Following Step 2
NCT04493320 (14) [back to overview]Change in Single Task Gait Speed Test Following Step 1
NCT04493320 (14) [back to overview]Change in Single Task Gait Speed Test Following Step 2
NCT04493320 (14) [back to overview]Change in Montgomery Asberg Depression Rating Scale Following Step 1
NCT04493320 (14) [back to overview]Change in Letter Comparison Test Following Step 2
NCT04493320 (14) [back to overview]Change in Letter Comparison Test Following Step 1
NCT04493320 (14) [back to overview]Change in Effort Expenditure for Rewards Task (EEfRT) Following Step 1
NCT04493320 (14) [back to overview]Change in Montgomery Asberg Depression Rating Scale Following Step 2
NCT04650217 (1) [back to overview]Montgomery Asberg Depression Rating Scale (MADRS)

Occurrence of Dyskinesia

"Dyskinesia was assessed by a blinded rater at each visit. Time to dyskinesia was defined as the visit at which the rater first answered yes to the following question: In your opinion, does this patient have dyskinesia?" (NCT00099268)
Timeframe: Baseline to Week 208

InterventionParticipants (Number)
Carbidopa/Levodopa/Entacapone128
Carbidopa/Levodopa103

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Total Score (Parts II and III)

The UPDRS is a standardized assessment scale used to measure the patient's disease state. It was to be completed by a blinded rater. There are 6 parts to the UPDRS. Part II (items 5-17; total score 0-52 units on the scale) measures the patient's activities of daily living and part III (items 18-31; total score 0-56 units on the scale) measures the motor function of the patient. The total score ranges from 0 to 108 units on the scale. A higher score indicates greater disability. A negative change score indicates improvement. (NCT00099268)
Timeframe: Baseline, Week 6 and Week 130

,
InterventionUnits on a scale (Mean)
Change from baseline to Week 6Change from baseline to Week 130
Carbidopa/Levodopa21.822.8
Carbidopa/Levodopa/Entacapone21.923.2

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Time to First Occurrence of Wearing-off

Wearing off is defined as a perception of loss of mobility or dexterity, usually taking place gradually over minutes (up to an hour) and usually bearing a close temporal relationship to the timing of anti-parkinsonian medications; it does not include early-morning akinesia. To ascertain its occurrence, a blinded rater questioned the patient whether he/she had noticed that the benefits of the study drug wear-off. A motor complications and patient questionnaire card were provided to assist the blinded rater in determining whether a patient had experienced wearing-off. (NCT00099268)
Timeframe: Baseline to end of study (134-208 weeks of treatment)

InterventionWeeks (Mean)
Carbidopa/Levodopa/Entacapone131.7
Carbidopa/Levodopa129.5

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Time to First Occurrence of Dyskinesia

"Dyskinesia was assessed by a blinded rater at each visit. Time to dyskinesia was defined as the visit at which the rater first answered yes to the following question: In your opinion, does this patient have dyskinesia? Time to dyskinesia was estimated by Kaplan-Meier product limit estimate that takes into consideration patients who did not experience dyskinesia by censoring them at the end of the study." (NCT00099268)
Timeframe: Treatment duration for an individual patient varied between a minimum of 134 weeks for those patients recruited last and a maximum of 208 weeks for those patients recruited first

Interventionweeks (Number)
Carbidopa/Levodopa/Entacapone90.7
Carbidopa/Levodopa117.1

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Occurrence of Wearing-off

Wearing-off is defined as a perception of loss of mobility or dexterity, usually taking place gradually over minutes (up to an hour) and usually bearing a close temporal relationship to the timing of anti-parkinsonian medications; it does not include early-morning akinesia. To ascertain its occurrence, a blinded rater questioned the patient as to whether he/she had noticed that the benefits of the study drug were wearing-off. (NCT00099268)
Timeframe: Baseline to Week 134

InterventionParticipants (Number)
Carbidopa/Levodopa/Entacapone139
Carbidopa/Levodopa161

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Indirect Monthly Costs Per Participant (Only Applied to Participants Younger Than 65) by Study Month, SEK 2010

Indirect costs consist of sick-leave and early retirement due to PD, are applied to individuals only up to the age of 65 since the main indirect cost item - early retirement due to disability - is only available for individuals 30-64 years old. Sixty-five is also a common retirement age in Sweden. The average rate for US Dollar (USD) to SEK on 31 December 2010 was 1 USD = 6.734 SEK. (NCT00141518)
Timeframe: Baseline (month -3) for Duodopa-naïve participants, then at Month 0, and monthly thereafter until Month 36

InterventionSEK 2010 (Mean)
Month -3; n=15/37Month 0; n=23/67Month 1; n=23/67Month 2; n=22/65Month 3; n=23/65Month 4; n=23/65Month 5; n=22/65Month 6; n=21/65Month 7; n=24/65Month 8; n=24/63Month 9; n=22/62Month 10; n=22/62Month 11; n=22/62Month 12; n=22/62Month 13; n=22/62Month 14; n=22/62Month 15; n=22/61Month 16; n=22/61Month 17; n=22/61Month 18; n=22/61Month 19; n=22/60Month 20; n=20/59Month 21; n=20/58Month 22; n=18/57Month 23; n=18/57Month 24; n=17/56Month 25; n=16/54Month 26; n=18/54Month 27; n=16/53Month 28; n=15/53Month 29; n=16/53Month 30; n=16/53Month 31; n=15/50Month 32; n=14/50Month 33; n=14/50Month 34; n=14/49Month 35; n=14/49Month 36; n=15/49
Total1703214109141091389614543145431389613250155121600514569145691439914399142301456914808148081446314463147041352913763125301253012003120591361512683118901268312683126041176311763120031200312432

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Electronic Diary: Morning and Day Scores (Self-assessment) From Baseline to Month 36

"The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. 'Self-assessment' scores were -3 (Off) to +3 (dyskinetic). 'Off' time is when PD symptoms are not adequately controlled by the drug. 'Dyskinetic' time is time with involuntary muscle movement. 0 is defined as the normal ON state without dyskinesia (the desired motor state). Everything closer to 0 means improvement, everything more away from 0 means either less mobility (in the negative score) or involuntary movements (dyskinesia, in the positive score)." (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 18, 13Day, Month 3; n=19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; n=16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=13, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; n=23, 20, 16
Duodopa Naïve-0.9-0.3-0.4-0.2-0.2-0.3-0.4-0.2-0.20.2-0.3-0.3-0.3-0.2-0.5-0.2-0.4-0.3-0.9-0.2-0.6-0.3
Duodopa Non-naïve < 2 YearsNANA-0.1-0.1-0.6-0.1-0.20.0-0.4-0.0-0.20.10.1-0.2-0.0-0.1-0.2-0.3-0.00.2-0.2-0.0
Duodopa Non-naïve ≥ 2 YearsNANA0.20.10.00.30.30.30.4-0.10.40.1-0.00.10.1-0.00.2-0.30.3-0.20.20.2

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PDQ-39 Mobility Subscale Scores From Baseline to Month 36

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. These include: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=27, 0, 0Month 0; n=27, 22, 18Month 3; n=23, 20, 18Month 6; n=25, 21, 18Month 9; n=24, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 18, 16Month 24; n=21, 17, 15Month 30; n=22, 17, 12Month 36; n=21, 15, 11Endpoint; n=26, 21, 17
Duodopa Naïve55.738.836.039.540.241.040.946.050.957.355.6
Duodopa Non-naïve < 2 YearsNA43.940.643.541.945.341.147.142.143.050.2
Duodopa Non-naïve ≥ 2 YearsNA53.350.654.752.854.454.749.553.361.161.6

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Electronic Diary: Morning and Day Scores (Tapping, Random Chase - Accuracy) From Baseline to Month 36

The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. Tapping: Random chase speed' is defined as the number of correct taps of fields randomly selected by the computer per 20 seconds. 'Tapping random chase - accuracy' is the percentage of accurate random chase taps. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionpercentage of accurate taps (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 18, 13Day, Month 3; n=19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; n=16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=13, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; n=23, 20, 16
Duodopa Naïve92.091.894.692.990.592.595.294.691.292.492.291.290.291.691.792.995.193.683.582.187.887.3
Duodopa Non-naïve < 2 YearsNANA90.091.389.288.689.088.790.893.190.792.588.892.192.293.485.988.685.988.483.886.6
Duodopa Non-naïve ≥ 2 YearsNANA92.692.389.189.890.589.291.892.590.689.286.885.489.090.790.591.289.788.887.586.7

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Electronic Diary: Morning and Day Scores (Tapping, Random Chase - Speed) From Baseline to Month 36

The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. Tapping: Random chase speed' is defined as the number of correct taps of fields randomly selected by the computer per 20 seconds. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventiontaps/20 seconds (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 18, 13Day, Month 3; n=19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; n=16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=13, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; 23, 20, 16
Duodopa Naïve24.524.226.326.327.227.228.328.227.227.027.226.326.226.327.026.727.427.926.525.225.125.1
Duodopa Non-naïve < 2 YearsNANA22.623.423.824.424.224.424.425.625.526.424.925.924.826.524.425.123.123.922.723.6
Duodopa Non-naïve ≥ 2 YearsNANA22.722.024.324.024.425.325.025.623.824.724.825.022.723.825.127.025.126.322.823.0

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Electronic Diary: Morning and Day Scores (Walking) From Baseline to Month 36

The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. Walking scores ranged from 1 (worst) to 5 (best). (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 19, 13Day, Month 3; n=19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; n=16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=14, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; n=23, 20, 16
Duodopa Naïve2.73.13.33.73.53.73.54.03.64.03.63.73.33.83.43.93.43.82.33.12.83.4
Duodopa Non-naïve < 2 YearsNANA3.23.73.03.63.23.73.33.83.53.83.53.93.53.93.44.03.64.03.43.8
Duodopa Non-naïve ≥ 2 YearsNANA3.43.33.13.33.33.43.13.13.13.13.43.52.92.83.63.93.73.73.03.0

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EQ-5D Descriptive Systems Summary Index Score, up to Month 36

The EQ-5D is a participant-answered questionnaire scoring 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. EQ-5D health states, defined by the EQ-5D descriptive system, are converted into a single summary index by applying a formula that essentially attaches values (also called QOL weights or QOL utilities) to each of the levels in each dimension. EQ-5D Summary Index values range from -0.11 to 1.00 with positive change indicating improvement. (NCT00141518)
Timeframe: Months 0, 3, 6, 9, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 21, 18Month 9; n=25, 20, 17Month 18; n=24, 20, 16Month 24; n=21, 18, 15Month 30; n=22, 17, 12Month 36; n=21, 15, 11Endpoint visit; n=26, 22, 17
Duodopa Naïve0.670.610.640.610.640.580.550.520.54
Duodopa Non-naïve < 2 Years0.680.700.710.660.660.670.690.570.60
Duodopa Non-naïve ≥ 2 Years0.620.570.570.590.530.470.520.510.46

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EQ-5D Visual Analog Scale (VAS) Score at Baseline and Month 12

The EQ-5D VAS records the participant's self-rated health on a scale from 0-100 where 100 is the 'best imaginable health state' and 0 is the 'worst imaginable health state.' The scale was normalized to a scale of 0 to 1, with higher values indicating a better health state. (NCT00141518)
Timeframe: Baseline (Month -3), Month 12

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=27, 0, 0Month 12; n=25, 19, 17
Duodopa Naïve0.440.63
Duodopa Non-naïve < 2 YearsNA0.64
Duodopa Non-naïve ≥ 2 YearsNA0.64

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EQ-5D Visual Analog Scale (VAS) Score, up to Month 36

The EQ-5D VAS records the participant's self-rated health on a scale from 0-100 where 100 is the 'best imaginable health state' and 0 is the 'worst imaginable health state.' (NCT00141518)
Timeframe: Months 0, 3, 6, 9, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 21, 18Month 9; n=25, 20, 17Month 18; n=24, 20, 16Month 24; n=21, 17, 15Month 30; n=22, 17, 12Month 36; n=21, 15, 11Endpoint visit; n=26, 22, 17
Duodopa Naïve0.680.650.600.680.620.640.560.560.57
Duodopa Non-naïve < 2 Years0.650.630.650.690.600.600.670.610.61
Duodopa Non-naïve ≥ 2 Years0.580.580.590.580.550.630.650.620.57

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Euro QoL 5 Dimensions Quality of Life Instrument (EQ-5D) Descriptive Systems Summary Index Score at Baseline and Month 12

The EQ-5D is a participant-answered questionnaire scoring 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. EQ-5D health states, defined by the EQ-5D descriptive system, are converted into a single summary index by applying a formula that essentially attaches values (also called QOL weights or QOL utilities) to each of the levels in each dimension. EQ-5D Summary Index values range from -0.11 (worst health state) to 1.00 (perfect health state). (NCT00141518)
Timeframe: Baseline (Month -3), Month 12

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=27, 0, 0Month 12; n=25, 20, 17
Duodopa Naïve0.570.59
Duodopa Non-naïve < 2 YearsNA0.66
Duodopa Non-naïve ≥ 2 YearsNA0.51

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MADRS Apparent Sadness Scores From Baseline to Month 36

MADRS is a depression rating scale consisting of 10 items representing the core symptoms of depressive illness, each rated 0 (no symptom) to 6 (severe symptom). Apparent sadness scores rate despondency, gloom and despair (more than just ordinary transient low spirits), reflected in speech, facial expression, and posture. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 17Month 6; n=25, 21, 17Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve0.70.40.81.00.90.40.81.01.21.11.1
Duodopa Non-naïve < 2 YearsNA0.50.60.60.70.90.60.61.00.80.8
Duodopa Non-naïve ≥ 2 YearsNA0.80.50.50.90.80.80.70.61.31.0

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MADRS Concentration Difficulties Scores From Baseline to Month 36

MADRS is a depression rating scale consisting of 10 items representing the core symptoms of depressive illness, each rated 0 (no symptom) to 6 (severe symptom). Concentration Difficulties scores rate difficulties in collecting one's thoughts mounting to an incapacitating lack of concentration. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 17Month 6; n=25, 21, 17Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve1.01.00.91.21.00.91.51.51.51.61.6
Duodopa Non-naïve < 2 YearsNA1.51.31.41.11.21.41.72.11.91.7
Duodopa Non-naïve ≥ 2 YearsNA0.91.21.21.31.41.41.71.51.21.6

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MADRS Inability to Feel Scores From Baseline to Month 36

MADRS is a depression rating scale consisting of 10 items representing the core symptoms of depressive illness, each rated 0 (no symptom) to 6 (severe symptom). Inability to Feel scores rate the subjective experience of reduced interest in the surroundings, or activities that normally give pleasure. The ability to react with adequate emotion to circumstances or people is reduced. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 17Month 6; n=25, 21, 17Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve0.50.40.60.60.50.60.50.50.40.60.6
Duodopa Non-naïve < 2 YearsNA0.20.60.40.60.40.50.60.70.50.6
Duodopa Non-naïve ≥ 2 YearsNA0.80.60.80.70.50.81.10.70.70.9

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MADRS Inner Tension Scores From Baseline to Month 36

MADRS is a depression rating scale consisting of 10 items representing the core symptoms of depressive illness, each rated 0 (no symptom) to 6 (severe symptom). Inner Tension scores rate feelings of ill-defined discomfort, edginess, inner turmoil, mental tension mounting to either panic, dread or anguish. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 17Month 6; n=25, 21, 17Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve1.31.31.51.10.91.11.21.01.11.71.6
Duodopa Non-naïve < 2 YearsNA1.00.80.90.60.70.70.81.10.60.6
Duodopa Non-naïve ≥ 2 YearsNA0.90.91.20.91.50.81.31.51.31.5

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MADRS Lassitude Scores From Baseline to Month 36

MADRS is a depression rating scale consisting of 10 items representing the core symptoms of depressive illness, each rated 0 (no symptom) to 6 (severe symptom). Lassitude scores rate difficulty in getting started or slowness in initiating and performing everyday activities. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 17Month 6; n=25, 21, 17Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve1.31.41.71.51.31.61.81.72.01.91.8
Duodopa Non-naïve < 2 YearsNA1.41.51.51.51.61.41.91.71.81.7
Duodopa Non-naïve ≥ 2 YearsNA1.72.01.31.71.41.61.71.31.71.7

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MADRS Pessimistic Thoughts Scores From Baseline to Month 36

MADRS is a depression rating scale consisting of 10 items representing the core symptoms of depressive illness, each rated 0 (no symptom) to 6 (severe symptom). Pessimistic Thoughts scores rate thoughts of guilt, inferiority, self-reproach, sinfulness, remorse and ruin. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 17Month 6; n=25, 21, 17Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=22, 17, 13Month 36; n=21, 16, 12Endpoint; n=26, 22, 17
Duodopa Naïve0.91.00.70.90.80.91.01.01.21.01.2
Duodopa Non-naïve < 2 YearsNA0.50.50.60.50.80.70.70.70.90.9
Duodopa Non-naïve ≥ 2 YearsNA0.60.80.60.91.00.81.10.91.01.1

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Electronic Diary: Morning and Day Scores (Tapping, Increased Speed - Accuracy) From Baseline to Month 36

The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. 'Tapping at increased speed - accuracy' is the percentage of accurate taps per all taps on computer-generated fields. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionpercentage of accurate taps (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 18, 13Day, Month 3; n=19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; n=16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=13, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; n=23, 20, 16
Duodopa Naïve74.673.783.780.483.181.387.187.886.486.087.081.881.382.185.785.387.388.677.970.779.574.6
Duodopa Non-naïve < 2 YearsNANA71.073.973.574.774.273.678.278.880.177.577.978.779.482.073.574.571.772.870.472.0
Duodopa Non-naïve ≥ 2 YearsNANA73.273.268.869.373.373.077.175.674.672.471.472.169.070.079.880.681.077.968.067.5

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MADRS Reduced Appetite Scores From Baseline to Month 36

MADRS is a depression rating scale consisting of 10 items representing the core symptoms of depressive illness, each rated 0 (no symptom) to 6 (severe symptom). Reduced Appetite scores rate the feeling of a loss of appetite compared with when-well. Rate by loss of desire for food or the need to force oneself to eat. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 17Month 6; n=25, 21, 17Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve0.80.60.70.80.50.50.50.71.00.90.9
Duodopa Non-naïve < 2 YearsNA0.20.40.30.40.60.30.50.40.40.3
Duodopa Non-naïve ≥ 2 YearsNA0.30.40.50.80.70.40.70.51.11.1

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MADRS Reduced Sleep Scores From Baseline to Month 36

MADRS is a depression rating scale consisting of 10 items representing the core symptoms of depressive illness, each rated 0 (no symptom) to 6 (severe symptom). Reduced Sleep scores rate the experience of reduced duration or depth of sleep compared to the participant's own normal pattern when well. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 17Month 6; n=25, 21, 17Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve2.51.92.01.81.81.81.71.62.31.91.6
Duodopa Non-naïve < 2 YearsNA1.51.81.71.91.51.51.81.91.21.4
Duodopa Non-naïve ≥ 2 YearsNA1.71.21.51.41.21.71.50.91.22.0

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MADRS Reported Sadness Scores From Baseline to Month 36

MADRS is a depression rating scale consisting of 10 items representing the core symptoms of depressive illness, each rated 0 (no symptom) to 6 (severe symptom). Reported Sadness scores rate depressed mood, regardless of whether it is reflected in appearance or not, and includes low spirits, despondency or the feeling of being beyond help and without hope. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 17Month 6; n=25, 21, 17Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve0.90.60.91.10.90.61.01.01.21.11.2
Duodopa Non-naïve < 2 YearsNA0.80.60.80.91.10.70.90.90.90.8
Duodopa Non-naïve ≥ 2 YearsNA0.80.50.51.10.80.80.80.91.11.0

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MADRS Suicidal Thoughts Scores From Baseline to Month 36

MADRS is a depression rating scale consisting of 10 items representing the core symptoms of depressive illness, each rated 0 (no symptom) to 6 (severe symptom). Suicidal Thoughts scores rate the feeling that life is not worth living, that a natural death would be welcome, suicidal thoughts, and preparations for suicide. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 17Month 6; n=25, 21, 17Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve0.40.50.50.50.30.30.50.10.40.50.4
Duodopa Non-naïve < 2 YearsNA0.20.00.10.00.30.30.20.10.10.2
Duodopa Non-naïve ≥ 2 YearsNA0.30.40.20.20.20.20.40.20.10.4

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Mini Mental Status Examination (MMSE) Total Scores From Baseline to Month 36

The MMSE is used to assess orientation, attention, immediate and short term recall, language, and ability to follow simple verbal and written commands. The test consists of five sections (orientation, registration, attention-calculation, recall, and language) and results in a total possible score of 0 to 30, with higher scores indicating better function. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint visit (Month 36 or last visit if discontinued early)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 21, 18Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve28.227.828.028.128.427.927.627.727.327.227.1
Duodopa Non-naïve < 2 YearsNA28.027.227.627.628.228.527.826.426.326.4
Duodopa Non-naïve ≥ 2 YearsNA28.228.628.128.328.228.328.028.627.927.3

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MMSE Attention and Calculation Subscale Scores From Baseline to Month 36

The MMSE is used to assess orientation, attention, immediate and short term recall, language, and ability to follow simple verbal and written commands. The Attention and Calculation subscale results in a total possible score of 0 to 5, with higher scores indicating better function. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 21, 18Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve4.94.64.64.64.74.74.54.64.64.24.2
Duodopa Non-naïve < 2 YearsNA4.44.34.54.34.74.74.64.13.74.0
Duodopa Non-naïve ≥ 2 YearsNA4.64.74.74.84.64.54.34.84.84.4

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MMSE Language Subscale Scores From Baseline to Month 36

The MMSE is used to assess orientation, attention, immediate and short term recall, language, and ability to follow simple verbal and written commands. The Language subscale results in a total possible score of 0 to 9, with higher scores indicating better function. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 21, 18Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve8.38.58.48.38.48.28.28.07.98.38.3
Duodopa Non-naïve < 2 YearsNA8.68.38.18.28.38.68.18.07.97.9
Duodopa Non-naïve ≥ 2 YearsNA8.58.78.38.48.28.38.38.58.48.4

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MMSE Orientation Subscale Scores From Baseline to Month 36

The MMSE is used to assess orientation, attention, immediate and short term recall, language, and ability to follow simple verbal and written commands. The orientation subscale has a total possible score of 0 to 10, with higher scores indicating better function. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 21, 18Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve9.89.69.49.79.89.69.79.79.49.69.5
Duodopa Non-naïve < 2 YearsNA9.99.59.69.99.89.79.88.99.38.9
Duodopa Non-naïve ≥ 2 YearsNA9.89.69.79.69.79.99.99.89.19.2

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MMSE Recall Subscale Scores From Baseline to Month 36

The MMSE is used to assess orientation, attention, immediate and short term recall, language, and ability to follow simple verbal and written commands. The Recall subscale results in a total possible score of 0 to 3, with higher scores indicating better function. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 21, 18Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve2.22.22.52.52.52.52.32.42.52.22.2
Duodopa Non-naïve < 2 YearsNA2.12.12.42.22.52.52.32.52.42.5
Duodopa Non-naïve ≥ 2 YearsNA2.32.52.32.52.62.62.52.62.82.5

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MMSE Registration Subscale Scores From Baseline to Month 36

The MMSE is used to assess orientation, attention, immediate and short term recall, language, and ability to follow simple verbal and written commands. The Registration subscale a total possible score of 0 to 3, with higher scores indicating better function. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 21, 18Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 17
Duodopa Naïve3.03.03.03.03.03.03.03.03.03.03.0
Duodopa Non-naïve < 2 YearsNA3.03.03.03.03.03.03.02.93.03.0
Duodopa Non-naïve ≥ 2 YearsNA3.03.03.03.03.03.03.03.02.92.9

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Modified Hoehn and Yahr Staging: Best Stage From Baseline to Month 36

The best PD stage that the participant experienced during the last month was characterized according to Modified Hoehn and Yahr criteria, measured on the following 8-point scale for staging: 0=no signs of disease; 1=unilateral disease; 1.5=unilateral plus axial involvement; 2=bilateral disease; 2.5=mild bilateral disease; 3=mild to moderate bilateral disease; 4=severe disability; and 5=wheelchair bound or bedridden unless aided. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=27, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 22, 18Month 9; 25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 20, 17Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 18
Duodopa Naïve2.22.02.02.02.22.22.22.32.52.52.6
Duodopa Non-naïve < 2 YearsNA2.52.52.52.52.62.52.62.62.62.7
Duodopa Non-naïve ≥ 2 YearsNA2.52.62.62.72.92.92.93.03.03.1

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Modified Hoehn and Yahr Staging: Current Stage From Baseline to Month 36

The current stage of PD was characterized according to Modified Hoehn and Yahr criteria, measured on the following 8-point scale for staging: 0=no signs of disease; 1=unilateral disease; 1.5=unilateral plus axial involvement; 2=bilateral disease; 2.5=mild bilateral disease; 3=mild to moderate bilateral disease; 4=severe disability; and 5=wheelchair bound or bedridden unless aided. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=27, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 22, 18Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 20, 17Month 24; 23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 18
Duodopa Naïve2.72.52.32.42.42.42.42.52.72.72.7
Duodopa Non-naïve < 2 YearsNA2.72.72.62.72.82.73.02.92.93.1
Duodopa Non-naïve ≥ 2 YearsNA3.23.03.13.13.33.43.23.13.33.4

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Modified Hoehn and Yahr Staging: Worst Stage From Baseline to Month 36

The worst PD stage that the participant experienced during the last month was characterized according to Modified Hoehn and Yahr criteria, measured on the following 8-point scale for staging: 0=no signs of disease; 1=unilateral disease; 1.5=unilateral plus axial involvement; 2=bilateral disease; 2.5=mild bilateral disease; 3=mild to moderate bilateral disease; 4=severe disability; and 5=wheelchair bound or bedridden unless aided. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=27, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 22, 18Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 20, 17Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 18
Duodopa Naïve3.83.63.83.73.73.63.83.94.03.93.9
Duodopa Non-naïve < 2 YearsNA3.73.73.73.83.83.93.84.04.04.0
Duodopa Non-naïve ≥ 2 YearsNA4.04.14.04.04.24.34.44.54.64.5

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Montgomery-Åsberg Depression Rating Scale (MADRS) Total Scores From Baseline to Month 36

MADRS is a depression rating scale consisting of 10 items representing the core symptoms of depressive illness, each rated 0 (no symptom) to 6 (severe symptom). Total score ranges from 0 (no depression) to 60 (severely depressed). (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=26, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 17Month 6; n=25, 21, 17Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 19, 16Month 24; n=23, 18, 15Month 30; n=22, 17, 13Month 36; n=21, 16, 12Endpoint; n=26, 22, 17
Duodopa Naïve10.39.010.210.58.88.610.610.112.012.211.6
Duodopa Non-naïve < 2 YearsNA7.88.18.48.08.88.19.710.69.19.0
Duodopa Non-naïve ≥ 2 YearsNA8.88.48.59.99.59.111.19.010.412.3

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Parkinson's Disease Questionnaire-39 (PDQ-39) Summary Index Scores From Baseline to Month 36

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. These include: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. The PDQ-39 Summary Index is the sum of all answers divided by the highest score possible, which is multiplied by 100 to put the score on a 0-100 scale. Higher scores are associated with more severe symptoms. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=27, 0, 0Month 0; n=27, 20, 17Month 3; n=22, 20, 18Month 6; n=24, 20, 17Month 9; n=23, 20, 16Month 12; n=23, 19, 17Month 18; n=22, 18, 16Month 24; n=21, 17, 14Month 30; n=21, 16, 12Month 36; n=20, 15, 11Endpoint; n=25, 21, 17
Duodopa Naïve33.627.124.527.925.928.828.230.333.536.836.2
Duodopa Non-naïve < 2 YearsNA30.330.033.430.933.230.436.234.831.534.0
Duodopa Non-naïve ≥ 2 YearsNA36.634.035.535.138.334.133.634.439.240.3

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PDQ-39 Activities of Daily Living Subscale Scores From Baseline to Month 36

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. These include: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=27, 0, 0Month 0; n=27, 20, 18Month 3; n=24, 22, 18Month 6; n=25, 21, 18Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 20, 16Month 24; n=21, 17, 15Month 30; n=22, 17, 12Month 36; n=21, 15, 11Endpoint; n=26, 22, 17
Duodopa Naïve38.732.126.931.829.834.733.237.138.845.443.4
Duodopa Non-naïve < 2 YearsNA40.842.843.737.542.141.948.348.547.548.3
Duodopa Non-naïve ≥ 2 YearsNA46.541.742.142.245.645.841.946.554.553.4

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PDQ-39 Bodily Discomfort Subscale Scores From Baseline to Month 36

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. These include: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=27, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=24, 21, 18Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 20, 16Month 24; n=21, 17, 15Month 30; n=22, 17, 12Month 36; n=21, 15, 11Endpoint; n=26, 22, 17
Duodopa Naïve42.641.738.538.936.339.338.542.942.842.942.6
Duodopa Non-naïve < 2 YearsNA40.239.842.142.134.637.135.339.231.736.7
Duodopa Non-naïve ≥ 2 YearsNA43.144.039.441.246.642.738.934.737.139.7

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PDQ-39 Cognition Subscale Scores From Baseline to Month 36

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. These include: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=27, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=24, 21, 18Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 20, 16Month 24; n=21, 17, 15Month 30; n=22, 16, 12Month 36; n=20, 15, 11Endpoint; n=25, 22, 17
Duodopa Naïve30.622.524.225.521.526.828.624.731.534.131.5
Duodopa Non-naïve < 2 YearsNA33.036.637.835.633.131.341.945.742.139.2
Duodopa Non-naïve ≥ 2 YearsNA33.732.330.631.633.830.127.530.730.734.9

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PDQ-39 Communication Subscale Scores From Baseline to Month 36

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. These include: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=27, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=24, 21, 18Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 20, 16Month 24; n=21, 17, 15Month 30; n=22, 17, 12Month 36; n=21, 15, 11Endpoint; n=26, 22, 17
Duodopa Naïve32.424.124.724.025.329.731.628.233.733.734.0
Duodopa Non-naïve < 2 YearsNA27.332.232.531.734.232.134.837.733.333.0
Duodopa Non-naïve ≥ 2 YearsNA35.231.933.828.933.829.730.641.737.940.2

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PDQ-39 Emotional Well Being Subscale Scores From Baseline to Month 36

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. These include: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=27, 0, 0Month 0; n=27, 22, 18Month 3; n=23, 22, 18Month 6; n=25, 20, 18Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 20, 16Month 24; n=21, 17, 15Month 30; n=22, 16, 12Month 36; n=21, 15, 11Endpoint; n=26, 22, 17
Duodopa Naïve35.330.924.831.333.029.032.131.933.939.739.4
Duodopa Non-naïve < 2 YearsNA27.127.533.332.134.830.237.733.330.031.1
Duodopa Non-naïve ≥ 2 YearsNA37.735.435.934.838.032.633.131.338.639.7

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PDQ-39 Social Support Subscale Scores From Baseline to Month 36

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. These include: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=27,0,0Month 0; n=27, 22, 17Month 3; n=24, 22, 18Month 6; n=25, 21, 17Month 9; n=24, 20, 16Month 12; n=23, 20, 17Month 18; n=22, 20, 16Month 24; n=21, 17, 14Month 30; n=22, 17, 12Month 36; n=21, 15, 11Endpoint; n=26, 22, 17
Duodopa Naïve8.310.310.812.710.212.112.715.718.218.321.8
Duodopa Non-naïve < 2 YearsNA12.912.513.113.819.617.920.616.211.714.4
Duodopa Non-naïve ≥ 2 YearsNA22.116.724.325.528.418.821.718.829.527.9

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PDQ-39 Stigma Subscale Scores From Baseline to Month 36

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. These include: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Baseline (Month -3); n=27, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 21, 18Month 9; n=25, 20, 17Month 12; n=25, 19, 17Month 18; n=24, 20, 16Month 24; n=21, 17, 15Month 30; n=21, 17, 12Month 36; n=21, 15, 11Endpoint; n=26, 22, 17
Duodopa Naïve24.816.216.120.815.517.815.615.816.420.519.5
Duodopa Non-naïve < 2 YearsNA16.518.819.012.819.413.823.514.012.915.6
Duodopa Non-naïve ≥ 2 YearsNA22.919.823.624.625.418.815.418.224.425.0

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Unified Parkinson's Disease Rating Scale (UPDRS) Total Score, and UPDRS Subscores I, II, III, and IV at Baseline and Month 12

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. For Parts I-III and Total Score, each question is measured on a 5-point scale of 0 (normal or no disease effect) to 4 (maximum negative effect); for Part IV, questions are measured on a 5- or 2-point scale (0 or 1). Part I score is the sum of answers to 'Mentation, Behavior and Mood' questions, with a score range from 0-16. Part II score is the sum of answers to 'Activities of Daily Living' questions, with a score range from 0-52. Part III score is the sum of answers to 'Motor Examination' questions, with a score range from 0-108. Part IV score is the sum of answers to 'Complications of Therapy' questions, with a score range from 0-23. Total Score is the sum of the responses to the 31 questions (44 answers) that comprise Parts I-III of the scale, with a score range from 0-176. Higher scores are associated with more disability. (NCT00141518)
Timeframe: Baseline (Month -3), Month 12

,,
Interventionunits on a scale (Mean)
Total Score, Baseline (Month -3); n=27, 0, 0Total Score, Month 12; n=25, 20, 17Part I, Baseline (Month -3); n=27, 0, 0Part I, Month 12; n=25, 20, 17Part II, Baseline (Month -3); n=27, 0, 0Part II, Month 12; n=25, 20, 17Part III, Baseline (Month -3); n=27, 0, 0Part III, Month 12; n=25, 20, 17Part IV, Baseline (Month -3); n=27, 0, 0Part IV, Month 12; n=25, 20, 17
Duodopa Naïve52.142.52.93.115.412.224.421.59.45.7
Duodopa Non-naïve < 2 YearsNA44.0NA2.6NA13.4NA21.2NA7.0
Duodopa Non-naïve ≥ 2 YearsNA48.2NA3.2NA14.3NA23.5NA7.2

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UPDRS Part I Score, up to Month 36

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. For Parts I-III and Total Score, each question is measured on a 5-point scale of 0 (normal or no disease effect) to 4 (maximum negative effect). Part I score is the sum of answers to 'Mentation, Behavior and Mood' questions, with a score range from 0-16. Higher scores are associated with more disability. (NCT00141518)
Timeframe: Months 0, 3, 6, 9, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 22, 18Month 9; n=25, 20, 17Month 18; n=24, 20, 17Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint visit; n=27, 22, 18
Duodopa Naïve2.42.52.93.04.13.94.13.93.9
Duodopa Non-naïve < 2 Years2.02.02.32.92.73.03.53.93.5
Duodopa Non-naïve ≥ 2 Years2.73.22.93.33.33.52.83.84.0

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UPDRS Part II Score, up to Month 36

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. For Parts I-III and Total Score, each question is measured on a 5-point scale of 0 (normal or no disease effect) to 4 (maximum negative effect). Part II score is the sum of answers to 'Activities of Daily Living' questions, with a score range from 0-52. Higher scores are associated with more disability. (NCT00141518)
Timeframe: Months 0, 3, 6, 9, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 22, 18Month 9; n=25, 20, 17Month 18; n=24, 20, 17Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint visit; n=27, 22, 18
Duodopa Naïve12.312.012.411.813.312.914.013.914.6
Duodopa Non-naïve < 2 Years13.712.813.413.012.912.214.614.615.7
Duodopa Non-naïve ≥ 2 Years15.415.014.314.415.617.216.916.817.3

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UPDRS Part III Score, up to Month 36

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. For Parts I-III and Total Score, each question is measured on a 5-point scale of 0 (normal or no disease effect) to 4 (maximum negative effect). Part III score is the sum of answers to 'Motor Examination' questions, with a score range from 0-108. Higher scores are associated with more disability. (NCT00141518)
Timeframe: Months 0, 3, 6, 9, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 20, 18Month 9; n=25, 20, 17Month 18; n=24, 20, 16Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint visit; n=27, 22, 17
Duodopa Naïve22.021.621.519.921.321.423.122.023.1
Duodopa Non-naïve < 2 Years23.422.922.821.921.718.222.622.224.1
Duodopa Non-naïve ≥ 2 Years22.421.922.622.923.325.424.028.028.6

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UPDRS Part IV Score, up to Month 36

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. For Part IV, questions are measured on a 5-point scale of 0 (normal or no disease effect) to 4 (maximum negative effect) or 2-point scale (0 or 1). Part IV score is the sum of answers to 'Complications of Therapy' questions, with a score range from 0-23. Higher scores are associated with more disability. (NCT00141518)
Timeframe: Months 0, 3, 6, 9, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 22, 18Month 9; n=25, 20, 17Month 18; n=24, 20, 17Month 24; n=23, 18, 15Month 30; n=22, 17, 13Month 36; n=21, 16, 12Endpoint visit; n=26, 22, 18
Duodopa Naïve6.56.36.56.16.56.36.26.46.5
Duodopa Non-naïve < 2 Years7.17.87.17.37.06.86.66.47.5
Duodopa Non-naïve ≥ 2 Years7.26.77.77.57.66.66.55.56.7

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UPDRS Total Score up to Month 36

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. For Parts I-III and Total Score, each question is measured on a 5-point scale of 0 (normal or no disease effect) to 4 (maximum negative effect). Part I score is the sum of answers to 'Mentation, Behavior and Mood' questions, with a score range from 0-16. Part II score is the sum of answers to 'Activities of Daily Living' questions, with a score range from 0-52. Part III score is the sum of answers to 'Motor Examination' questions, with a score range from 0-108. Total Score is the sum of the responses to the 31 questions (44 answers) that comprise Parts I-III of the scale, with a score range from 0-176. Higher scores are associated with more disability. (NCT00141518)
Timeframe: Months 0, 3, 6, 9, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 22, 18Month 9; 5, 20, 17Month 18; n=24, 20, 17Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint visit; n=27, 22, 18
Duodopa Naïve43.142.443.340.845.244.547.146.247.9
Duodopa Non-naïve < 2 Years46.245.543.545.144.240.247.447.150.8
Duodopa Non-naïve ≥ 2 Years47.846.847.448.148.552.750.254.055.0

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Direct Monthly Non-medical Costs Per Participant, SEK 2010

Direct non-medical costs include nursing home, home help, personal assistance, informal care (from family member or friend) and transportation to inpatient, outpatient visits and nursing home. The average rate for US Dollar (USD) to SEK on 31 December 2010 was 1 USD = 6.734 SEK. (NCT00141518)
Timeframe: Baseline (month -3) for Duodopa-naïve participants, then at Month 0, and monthly thereafter until study completion (up to 48 months) for all participants

InterventionSEK 2010 (Mean)
Duodopa Naïve19274
Duodopa Non-naïve < 2 Years27439
Duodopa Non-naïve ≥ 2 Years25008
Total23398

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Monthly Direct Medical Cost (Excluding Drug Costs) Per Participant, SEK 2010

Direct medical costs consist of inpatient care, outpatient care (visits to physician, nurse, physiotherapist, occupational therapist, dietitian, speech therapist, counselor, and phone consultations). The average rate for US Dollar (USD) to SEK on 31 December 2010 was 1 USD = 6.734 SEK. (NCT00141518)
Timeframe: Baseline (month -3) for Duodopa-naïve participants, then at Month 0, and monthly thereafter until study completion (up to 48 months) for all participants

InterventionSEK 2010 (Mean)
Duodopa Naïve3825
Duodopa Non-naïve < 2 Years4552
Duodopa Non-naïve ≥ 2 Years3607
Total4002

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Monthly Drug Costs Per Participant, SEK 2010

Drug costs include Duodopa cost and cost of concomitant anti-PD medication. Drug costs are a direct medical cost. The average rate for US Dollar (USD) to SEK on 31 December 2010 was 1 USD = 6.734 SEK. (NCT00141518)
Timeframe: Baseline (month -3) for Duodopa-naïve participants, then at Month 0, and monthly thereafter until study completion (up to 48 months) for all participants

InterventionSEK 2010 (Mean)
Duodopa Naïve39382
Duodopa Non-naïve < 2 Years34417
Duodopa Non-naïve ≥ 2 Years37679
Total37339

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Total Monthly Cost Per Participant, in Swedish Crowns (SEK) 2010

"Total monthly costs include~Direct medical costs (inpatient care, outpatient care, and drug costs [including Duodopa cost and cost of concomitant anti-PD medication]).~Direct non-medical costs (nursing home, home help, personal assistance, informal care [from family member or friend] and transportation to inpatient, outpatient visits and nursing home).~Indirect costs (sick-leave and early retirement due to PD [applied to individuals only up to the age of 65 since the main indirect cost item, early retirement due to disability, is only available for individuals 30-64 years old. Sixty-five is also a common retirement age in Sweden]).~The average rate for US Dollar (USD) to SEK on 31 December 2010 was 1 USD = 6.734 SEK." (NCT00141518)
Timeframe: Baseline (month -3) for Duodopa-naïve participants, then at Month 0, and monthly thereafter until study completion (up to 48 months) for all participants

InterventionSEK 2010 (Mean)
Duodopa Naïve78418
Duodopa Non-naïve < 2 Years75521
Duodopa Non-naïve ≥ 2 Years82177
Total78464

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"Schwab and England Scale: Best On Period Stage From Baseline to Month 36"

"The Schwab and England scale was used to rate the subject's best on period during the past week by recording the percentage score, ranging between being completely independent (100%) and totally dependent (10%). On time is when PD symptoms are well controlled by the drug." (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionpercentage score on a scale (Mean)
Baseline (Month -3); n=27, 0, 0Month 0; n=27, 22, 18Month 3; n=24, 22, 18Month 6; n=25, 22, 18Month 9; n=25, 20, 17Month 12; n=25, 20, 17Month 18; n=24, 20, 17Month 24; n=23, 18, 15Month 30; n=23, 17, 13Month 36; n=21, 16, 12Endpoint; n=27, 22, 18
Duodopa Naïve74.480.477.975.279.277.275.872.270.466.768.9
Duodopa Non-naïve < 2 YearsNA75.575.977.376.572.574.073.371.873.171.4
Duodopa Non-naïve ≥ 2 YearsNA74.472.272.270.671.869.468.067.764.262.2

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Electronic Diary: Morning and Day Scores (Cramps) From Baseline to Month 36

The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. 'Cramps' scores were 1 (worst) to 5 (best). (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 18, 13Day, Month 3; n=19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; n=16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=13, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; n=23, 20, 16
Duodopa Naïve4.44.54.74.74.84.74.84.84.84.74.84.54.74.74.64.54.94.94.54.74.64.5
Duodopa Non-naïve < 2 YearsNANA4.64.74.64.74.54.54.44.54.54.74.44.64.84.84.74.84.74.84.54.6
Duodopa Non-naïve ≥ 2 YearsNANA4.64.64.54.54.34.34.44.34.24.14.14.34.04.04.13.94.14.24.44.5

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Electronic Diary: Morning and Day Scores (Drawing Impairment [Wavelet Method]) From Baseline to Month 36

The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. Drawing impairment was assessed as a spiral score, where the participant is asked to draw a spiral. 1 is worst score, 10 is best. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 18, 13Day, Month 3; n=19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; n=16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=13, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; n=23, 20, 16
Duodopa Naïve4.04.04.14.23.63.83.84.14.34.34.14.44.64.64.34.54.14.54.45.04.54.8
Duodopa Non-naïve < 2 YearsNANA4.54.34.34.24.54.64.14.14.14.14.44.33.93.94.44.44.84.65.04.9
Duodopa Non-naïve ≥ 2 YearsNANA5.05.14.74.84.54.54.64.55.04.75.44.95.25.14.94.85.35.35.35.3

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Electronic Diary: Morning and Day Scores (Dyskinetic Magnitude) From Baseline to Month 36

The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. 'Dyskinetic time' is time with involuntary muscle movement. Magnitude scores were 1 (worst) to 5 (best). (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 18, 13Day, Month 3; n=19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; n=16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=13, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; 23, 20, 16
Duodopa Naïve4.13.64.14.04.44.24.14.24.13.84.14.13.93.94.44.14.54.54.34.04.34.0
Duodopa Non-naïve < 2 YearsNANA4.14.04.24.04.13.84.24.04.23.73.83.94.23.93.93.94.03.74.03.7
Duodopa Non-naïve ≥ 2 YearsNANA4.03.74.03.73.93.73.73.83.73.83.93.84.13.84.24.14.14.04.13.6

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Electronic Diary: Morning and Day Scores (Dyskinetic Time) From Baseline to Month 36

The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. 'Dyskinetic time' is time with involuntary muscle movement, and is represented as a percentage of total time of the last __ hours. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionpercentage of 'dyskinetic' time (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 18, 13Day, Month 3; n=19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; n=16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=13, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; n=23, 20, 16
Duodopa Naïve18.624.318.217.412.014.416.715.915.620.813.616.217.020.69.615.811.814.510.416.216.516.2
Duodopa Non-naïve < 2 YearsNANA19.618.413.718.914.420.815.519.014.617.415.920.815.021.321.319.115.219.416.919.4
Duodopa Non-naïve ≥ 2 YearsNANA19.727.324.524.825.625.828.526.527.225.124.027.428.232.413.418.216.621.323.021.3

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Electronic Diary: Morning and Day Scores (Free Tapping - Accuracy) From Baseline to Month 36

The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. 'Free tapping' is defined as ____. 'Free tapping accuracy' is the percentage of accurate free taps per 20 seconds(?). (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionpercentage of tapping accuracy (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 18, 13Day, Month 3; n=19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; n=16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=13, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; n=23, 20, 16
Duodopa Naïve70.771.971.470.173.470.067.665.767.065.468.764.758.961.262.364.466.366.860.750.363.760.1
Duodopa Non-naïve < 2 YearsNANA69.870.770.369.766.266.163.669.971.571.765.469.166.269.167.267.360.364.658.762.7
Duodopa Non-naïve ≥ 2 YearsNANA63.865.263.565.864.866.765.867.561.560.465.861.461.962.462.167.961.263.659.360.3

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Electronic Diary: Morning and Day Scores (Free Tapping - Speed) From Baseline to Month 36

The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. Free tapping is defined as voluntary repetitive finger tapping on computer-generated fields. 'Free tapping speed' is a count of the number of taps per 20 seconds. (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventiontaps/20 seconds (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 18, 13Day, Month 3; n=19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; n=16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=13, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; n=23, 20, 16
Duodopa Naïve39.939.744.443.546.847.450.750.347.248.149.348.744.046.947.347.649.449.546.345.541.843.6
Duodopa Non-naïve < 2 YearsNANA39.240.242.243.243.443.045.748.044.546.643.146.345.548.742.242.644.745.641.243.2
Duodopa Non-naïve ≥ 2 YearsNANA40.640.346.343.248.047.646.847.047.046.646.745.938.741.549.352.651.450.543.141.4

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Electronic Diary: Morning and Day Scores (Off Magnitude) From Baseline to Month 36

The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. 'Off time' is when PD symptoms are not adequately controlled by the drug. Magnitude scores were 1 (worst) to 5 (best). (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 18, 13Day, Month 3; 19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; 16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=13, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; n=23, 20, 16
Duodopa Naïve2.72.83.63.63.53.63.43.83.73.83.73.63.73.83.63.73.83.83.13.53.33.5
Duodopa Non-naïve < 2 YearsNANA3.23.52.83.63.23.73.33.63.33.63.33.73.53.63.33.63.53.83.43.6
Duodopa Non-naïve ≥ 2 YearsNANA3.43.33.13.33.73.43.33.23.43.43.23.53.13.42.93.23.23.03.33.1

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Electronic Diary: Morning and Day Scores (Off Time) From Baseline to Month 36

"The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. Off time is when PD symptoms are not adequately controlled by the drug, and is represented as a percentage of total time awake per day." (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionpercentage of 'off' time (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 18, 13Day, Month 3; n=19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; n=16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=13, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; n=23, 20, 16
Duodopa Naïve41.235.423.420.826.423.025.621.923.919.525.324.021.117.929.122.023.421.635.124.730.724.8
Duodopa Non-naïve < 2 YearsNANA30.621.434.322.730.121.832.321.528.019.528.921.625.421.329.424.029.418.828.522.3
Duodopa Non-naïve ≥ 2 YearsNANA25.125.725.720.218.620.923.622.823.823.524.920.130.424.928.023.031.523.627.125.9

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Electronic Diary: Morning and Day Scores (On Time) From Baseline to Month 36

"The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. On time is when PD symptoms are well controlled by the drug, and is represented as a percentage of total time of the last __ hours." (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionpercentage of 'on' time (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 18, 13Day, Month 3; n=19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; n=16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=13, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; n=23, 20, 16
Duodopa Naïve40.240.358.461.861.662.657.762.260.559.761.159.561.961.561.362.364.862.454.559.152.956.0
Duodopa Non-naïve < 2 YearsNANA49.860.252.058.355.557.352.359.557.563.055.257.659.557.449.356.955.361.854.656.5
Duodopa Non-naïve ≥ 2 YearsNANA55.246.549.855.055.853.247.950.849.051.451.152.541.342.758.658.851.955.149.946.2

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Electronic Diary: Morning and Day Scores (Satisfied With Function) From Baseline to Month 36

The Electronic Diary consisted of 15 items addressing motor performance, complication of therapy, self-assessment, and various types of tapping. Six conceptual dimensions were defined; four subjectively-reported: 'walking', 'satisfied', 'dyskinesia', and 'off' and two objectively-measured: 'tapping' and 'spiral'. Each of the items was assessed in the morning and during the day. 'Satisfied with function' scores were 1 (worst) to 5 (best). (NCT00141518)
Timeframe: Baseline (Month -3), Months 0, 3, 6, 9, 12, 18, 24, 30, 36, endpoint (last non-missing value assigned to treatment for the participant)

,,
Interventionunits on a scale (Mean)
Morning, Baseline (Month -3); n=20, 0, 0Day, Baseline (Month -3); n=20, 0, 0Morning, Month 0; n=19, 20, 15Day, Month 0; n=19, 20, 15Morning, Month 3; n=19, 18, 13Day, Month 3; n=19, 19, 13Morning, Month 6; n=16, 19, 11Day, Month 6; n=16, 19, 11Morning, Month 9; n=16, 17, 9Day, Month 9; n=16, 17, 9Morning, Month 12; n=16, 16, 9Day, Month 12; n=16, 16, 9Morning, Month 18; n=15, 14, 10Day, Month 18; n=15, 14, 10Morning, Month 24; n=13, 13, 7Day, Month 24; n=13, 13, 7Morning, Month 30; n=9, 9, 5Day, Month 30; n=9, 9, 5Morning, Month 36; n=6, 11, 5Day, Month 36; n=5, 11, 5Morning, Endpoint; n=23, 20, 16Day, Endpoint; n=23, 20, 16
Duodopa Naïve2.52.63.33.43.43.53.53.63.43.53.63.53.43.53.43.63.63.53.43.53.23.4
Duodopa Non-naïve < 2 YearsNANA3.23.43.03.43.33.43.33.43.43.63.43.63.63.53.43.63.33.53.33.4
Duodopa Non-naïve ≥ 2 YearsNANA3.83.33.43.33.73.53.63.43.53.63.33.43.13.33.63.63.53.53.43.1

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Mean Percentage of Cocaine-positive Urines Over Course of 12 Week Treatment in Subgroup NOT Achieving Abstinence at Baseline

Cocaine use was determined by assessing for the presence of benzoylecgonine in urine. (NCT00218023)
Timeframe: 3 times per week (Monday, Wednesday, and Friday) for 12 weeks

InterventionMean % of cocaine-positive urines (Mean)
Modafinil Plus MI, CM, and CBT88
Levodopa/Carbidopa Plus MI, CM, and CBT49
Naltrexone HCl Plus MI, CM, and CBT62
Placebo Plus MI, CM, and CBT91

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Mean Percentage of Cocaine-positive Urines Over Course of 12 Week Treatment in Subgroup Achieving Abstinence at Baseline

Cocaine use was determined by assessing for the presence of benzoylecgonine in urine. (NCT00218023)
Timeframe: 3 times per week (Monday, Wednesday, and Friday) for 12 weeks

InterventionMean % of cocaine-positive urines (Mean)
Modafinil Plus MI, CM, and CBT31
Levodopa/Carbidopa Plus MI, CM, and CBT28
Naltrexone HCl Plus MI, CM, and CBT47
Placebo Plus MI, CM, and CBT35

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Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score From Baseline to Week 8

Motor function was assessed with the UPDRS part III. There are 14 items in the instrument, each measured on a 5-point scale (0-4): Speech, facial expression, tremor at rest, action tremor, rigidity, finger taps, hand movements, hand pronation and supination, leg agility, arising from chair, posture, gait, postural stability, and body bradykinesia. The sum of scores can range from 0 to 56; a higher score indicates greater disability. A negative change score indicates improvement. (NCT00219284)
Timeframe: Baseline to Week 8

InterventionUnits on a scale (Least Squares Mean)
Immediate Switch-3.6
Delayed Switch-3.7

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Change in the 39-item Parkinson's Disease Questionnaire (PDQ-39) Total Score From Baseline to End of Treatment

The PDQ-39 is another instrument used to assess quality of life in individuals with Parkinson's disease. The questionnaire provides scores on eight scales: Mobility, activities of daily living, emotions, stigma, social support, cognition, communication, and bodily discomfort. Questions are scored on a 5-point Likert scale ranging from 1 (never) to 3 (sometimes) to 5 (always). The 1 to 5 range was recoded to 0 to 4 for the analysis. The total score can range from 0 to 156. A lower score indicates better quality of life. A negative change score indicates an improvement. (NCT00219284)
Timeframe: Baseline to end of treatment (Week 16 in the Immediate Switch group, Week 20 in the Delayed Switch group)

InterventionUnits on a scale (Least Squares Mean)
Immediate Switch-2.8
Delayed Switch0.4

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Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score From Baseline to Week 4

Motor function was assessed with the UPDRS part III. There are 14 items in the instrument, each measured on a 5 point scale (0-4): Speech, facial expression, tremor at rest, action tremor, rigidity, finger taps, hand movements, hand pronation and supination, leg agility, arising from chair, posture, gait, postural stability, and body bradykinesia. The sum of scores can range from 0 to 56; a higher score indicates greater disability. A negative change score indicates improvement. (NCT00219284)
Timeframe: Baseline to Week 4

InterventionUnits on a scale (Least Squares Mean)
Immediate Switch-3.7
Delayed Switch-1.8

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Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score From Baseline to End of Treatment

Motor function was assessed with the UPDRS part III. There are 14 items in the instrument, each measured on a 5 point scale (0-4): Speech, facial expression, tremor at rest, action tremor, rigidity, finger taps, hand movements, hand pronation and supination, leg agility, arising from chair, posture, gait, postural stability, and body bradykinesia. The sum of scores can range from 0 to 56; a higher score indicates greater disability. A negative change score indicates improvement. (NCT00219284)
Timeframe: Baseline to end of treatment (Week 16 in the Immediate Switch group, Week 20 in the Delayed Switch group)

InterventionUnits on a scale (Least Squares Mean)
Immediate Switch-3.6
Delayed Switch-3.3

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Change in the 39-item Parkinson's Disease Questionnaire (PDQ-39) Total Score From Baseline to Week 8

The PDQ-39 is another instrument used to assess quality of life in individuals with Parkinson's disease. The questionnaire provides scores on eight scales: Mobility, activities of daily living, emotions, stigma, social support, cognition, communication, and bodily discomfort. Questions are scored on a 5-point Likert scale ranging from 1 (never) to 3 (sometimes) to 5 (always). The 1 to 5 range was recoded to 0 to 4 for the analysis. The total score can range from 0 to 156. A lower score indicates better quality of life. A negative change score indicates an improvement. (NCT00219284)
Timeframe: Baseline to Week 8

InterventionUnits on a scale (Least Squares Mean)
Immediate Switch-5.8
Delayed Switch-1.9

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Change in the 39-item Parkinson's Disease Questionnaire (PDQ-39) Total Score From Baseline to Week 4

The PDQ-39 is another instrument used to assess quality of life in individuals with Parkinson's disease. The questionnaire provides scores on eight scales: Mobility, activities of daily living, emotions, stigma, social support, cognition, communication, and bodily discomfort. Questions are scored on a 5-point Likert scale ranging from 1 (never) to 3 (sometimes) to 5 (always). The 1 to 5 range was recoded to 0 to 4 for the analysis. The total score can range from 0 to 156. A lower score indicates better quality of life. A negative change score indicates an improvement. (NCT00219284)
Timeframe: Baseline to Week 4

InterventionUnits on a scale (Least Squares Mean)
Immediate Switch-1.7
Delayed Switch0.8

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Change in Parkinson's Disease Quality of Life Score From Baseline to Week 8

Quality of life was assessed with the Parkinson's Disease Quality of Life Instrument (PDQUALIF), a 33-item self-reported questionnaire which includes seven domains: Social/role function, self-imaging/sexuality, sleep, outlook, physical function, independence, and urinary function. Questions are scored on a 5-point Likert scale ranging from 1 (never) to 3 (sometimes) to 5 (always). The 1 to 5 range was recoded to 0 to 4 for the analysis. The total score can range from 0 to 132. A lower score indicates better quality of life. A negative change score indicates improvement. (NCT00219284)
Timeframe: Baseline to Week 8

InterventionUnits on a scale (Least Squares Mean)
Immediate Switch-2.5
Delayed Switch-1.1

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Change in Parkinson's Disease Quality of Life Score From Baseline to Week 4

Quality of life was assessed with the Parkinson's Disease Quality of Life Instrument (PDQUALIF), a 33-item self-reported questionnaire which includes seven domains: Social/role function, self-imaging/sexuality, sleep, outlook, physical function, independence, and urinary function. Questions are scored on a 5-point Likert scale ranging from 1 (never) to 3 (sometimes) to 5 (always). The 1 to 5 range was recoded to 0 to 4 for the analysis. The total score can range from 0 to 132. A lower score indicates better quality of life. A negative change score indicates improvement. (NCT00219284)
Timeframe: Baseline to Week 4

InterventionUnits on a scale (Least Squares Mean)
Immediate Switch-0.4
Delayed Switch1.1

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Change in Parkinson's Disease Quality of Life Score From Baseline to End of Treatment

Quality of life was assessed with the Parkinson's Disease Quality of Life Instrument (PDQUALIF), a 33-item self-reported questionnaire which includes seven domains: Social/role function, self-imaging/sexuality, sleep, outlook, physical function, independence, and urinary function. Questions are scored on a 5-point Likert scale ranging from 1 (never) to 3 (sometimes) to 5 (always). The 1 to 5 range was recoded to 0 to 4 for the analysis. The total score can range from 0 to 132. A lower score indicates better quality of life. A negative change score indicates improvement. (NCT00219284)
Timeframe: Baseline to end of treatment (Week 16 in the Immediate Switch group, Week 20 in the Delayed Switch group)

InterventionUnits on a scale (Least Squares Mean)
Immediate Switch-1.3
Delayed Switch0.2

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Cognition Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Cognition includes 4 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline to Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)27.2-4.5

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Communication Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Communication includes 3 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)34.3-3.9

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Emotional Well-Being Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Emotional Well-being (e.g., feelings of isolation) includes 6 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)39.4-4.2

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Mobility Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Mobility (e.g., fear of falling when walking) includes 10 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)58.8-11.2

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Social Support Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Social Support includes 3 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)17.2-0.3

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Stigma Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Stigma (e.g., social embarrassment) consists of 4 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineCHange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)32.5-9.1

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part I Score at Month 12

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part I Score is the sum of the answers to the 4 questions that comprise Part I, each of which are measured on a 5-point scale (0-4). The Part I score ranges from 0-16 and higher scores are associated with more disability. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)2.20.0

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score at Endpoint

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part II score is the sum of the answers to the 13 questions that comprise Part II, each of which are measured on a 5-point scale (0-4). The Part II score ranges from 0-52 and higher scores are associated with more disability. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)17.5-4.4

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score at Endpoint

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part III score is the sum of the 27 answers provided to the 14 Part III questions, each of which are measured on a 5-point scale (0-4). The Part III score ranges from 0-108 and higher scores are associated with more disability. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)28.9-7.4

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Score at Endpoint

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part IV Score is the sum of the answers to the 11 questions that comprise Part IV, each of which are measured on a 5-point scale (0-4) or a 2-point scale (0 or 1). The Part IV score ranges from 0-23 and higher scores are associated with more disability. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)9.2-3.5

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Total Score at Endpoint

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The total score is the sum of the responses to the 31 questions (44 answers) that comprise Parts I-III of the scale. The total score will range from 0-176, with 176 representing the worst (total) disability, and 0 representing no disability. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)48.6-11.7

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Change From Baseline in Zarit Burden Interview (ZBI) Total Score at Endpoint

The ZBI is a 22-item questionnaire regarding the caregiver/subject relationship and evaluates the caregiver's health condition, psychological well-being, finances and social life. Each question is answered on a 5-point scale (0=never, 1=rarely, 2=sometimes, 3=quite frequently, and 4=nearly always). The caregiver burden is evaluated by the total score (Range 0 to 88) obtained from the sum of the answers to the 22 questions. Higher scores are associated with a higher level of burden for the caregiver. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)27.10.2

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Clinical Global Impression - Status (CGI-S) Score at Baseline and Clinical Global Impression - Improvement (CGI-I) Score at Endpoint

The CGI-S is a global assessment by the Investigator of current symptomatology and impact of illness on functioning. The ratings of the CGI-S are as follows: 1 = normal, 2 = borderline ill, 3 = mildly ill, 4 = moderately ill, 5 = markedly ill, 6 = severely ill, and 7 = among the most extremely ill. The CGI-I is a global assessment by the Investigator of the change in clinical status since the start of treatment. The CGI-I ratings are as follows: 1 = very much improved, 2 = much improved, 3 = minimally improved, 4 = no change, 5 = minimally worse, 6 = much worse, 7 = very much worse. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
CGI-S BaselineCGI-I at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)4.852.10

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Number of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Deaths and Discontinuations Due to AEs

AE=any untoward medical occurrence which does not necessarily have a causal relationship with this treatment. SAE=any untoward medical occurrence that: results in death; is life-threatening (an event in which the subject was at risk of death at the time of the event); requires inpatient hospitalization or prolongation of an existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or other important medical events. Treatment-emergent events (TEAE or TESAE)=those starting after the first dose of study drug. Severe=severity reported as 'severe' or missing. Possibly or Probably Treatment Related=drug-event relationship reported as 'possible', 'probable' or missing. Death=a fatal outcome of an SAE or AE. (NCT00335153)
Timeframe: Screening through Day 378 + 30 days

Interventionparticipants (Number)
DeathsTE Deaths>=1 SAE>=1TESAE>=1 TEAE Leading to Study Termination>=1 TEAE>=1 Severe TEAE>=1 Possibly or Probably Treatment Related TEAENo TEAE
Levodopa-Carbidopa Intestinal Gel (LCIG)871111082732310227231

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Number of Participants With Device Complications During the Nasojejunal (NJ) Test Period

Complications of the infusion device were collected during the NJ Test period. Pump, intestinal tube, NJ tube, and other complications included (but were not limited to) device breakage, device leakage, device malfunction, device misuse, device occlusion, intentional and unintentional device removal by participant, complication of device insertion, device dislocation, device breakage, device dislocation, and post-procedural hemorrhage. (NCT00335153)
Timeframe: NJ Test Period (from 2 to 14 days)

Interventionparticipants (Number)
>=1 ComplicationPump ComplicationIntestinal Tube ComplicationNJ Tube ComplicationOther Complications
Levodopa-Carbidopa Intestinal Gel (LCIG)90746825

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Number of Participants With Device Complications During the Percutaneous Endoscopic Gastrostomy - With Jejunal Extension Tube (PEG-J) Surgery and Post-PEG Long Term Treatment Periods

Complications of the infusion device were collected during the PEG-J Surgery and Post-PEG Long-Term Treatment periods. Pump, PEG-J, stoma, and other complications included (but were not limited to) device breakage, device leakage, device malfunction, device misuse, device occlusion, intentional and unintentional device removal by participant, complication of device insertion, device dislocation, device breakage, device dislocation, and post-procedural hemorrhage. (NCT00335153)
Timeframe: PEG-J Surgery Period (from 2 to 14 days) through the Long Term Treatment Period (Day 28 to Day 378)

Interventionparticipants (Number)
>=1 ComplicationPump ComplicationIntestinal Tube ComplicationPEG-J ComplicationStoma ComplicationOther Complication
Levodopa-Carbidopa Intestinal Gel (LCIG)282116165114116114

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Number of Participants With Potentially Clinically Significant Electrocardiogram (ECG) Parameters

Terms abbreviated in the table include heart rate (HR) in beats per minute (bpm), PR interval (PRI), QT interval corrected for heart rate using Bazett's formula (QTcB), and QT interval corrected for heart rate using Fridericia's formula (QTcF). Increase and decrease are signified by ↑ and ↓, respectively. (NCT00335153)
Timeframe: Screening through Day 378

Interventionparticipants (Number)
HR <=50 and >30 bpm ↓ from BL; n=321HR >=120 and >30 bpm ↑ from BL; n=321PR Interval <120 msec; n=321PR Interval >220 msec; n=321QTcB Interval >480 msec; n=319QTcB Interval >60 msec ↑ from BL; n=309QTcF Interval >480 msec; n=319QTcF Interval >60 msec ↑ from BL; n=309
Levodopa-Carbidopa Intestinal Gel (LCIG)1162615473

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Number of Participants With Potentially Clinically Significant Values for Clinical Chemistry Parameters

Terms abbreviated in the table include aspartate aminotransferase (AST), upper limit of normal (ULN), alanine aminotransferase (ALT), gamma-glutamyl transpeptidase (GGT), lactate dehydrogenase (LDH), blood urea nitrogen (BUN), female (f), and male (m). (NCT00335153)
Timeframe: Screening through Day 378

Interventionparticipants (Number)
AST >3*ULN; n=315ALT >3*ULN; n=315GGT >3*ULN; n=315LDH >3*ULN; n=315Alkaline Phosphatase >400 U/L; n=315Total Protein <45 g/L; n=315Total Bilirubin >2*ULN; n=315Creatine Kinase >3*ULN; n=315Sodium <126 mmol/L; n=315Sodium >156 mmol/L; n=315Potassium <3.0 mmol/L; n=315Potassium >6.0 mmol/L; n=315Calcium <1.75 mmol/L; n=315Calcium >3.0 mmol/L; n=315BUN >10.8 mmol/L; n=77Creatinine >177 mcmol/L; n=315Uric Acid >500 mcmol/L (f), >590 mcmol/L (m);n=315Glucose (nonfasting) <2.78 mmol/L; n=315Glucose (nonfasting) >16.0 mmol/L; n=315Cholesterol >12.9 mmol/L; n=315Triglycerides >5.6 mmol/L; n=315
Levodopa-Carbidopa Intestinal Gel (LCIG)103000072211204301102

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Number of Participants With Potentially Clinically Significant Values for Hematology Parameters

Potentially clinically significant values for red blood cells (RBCs), hemoglobin, and hematocrit are specified for females (f) and males (m) separately in the category rows. (NCT00335153)
Timeframe: Screening through Day 378

Interventionparticipants (Number)
RBCs <2.0*10^12/L (f), <2.5*10^12/L (m); n=316Hemoglobin <90 g/L (f), <100 g/L (m); n=316Hematocrit <30% (f), <34% (m); n=315White Blood Cells <2.8*10^9/L; n=316White Blood Cells >16.0*10^9/L; n=316Neutrophils <1.2*10^9/L; n=316Lymphocytes <0.75*10^9/L; n=316Lymphocytes >80%; n=316Platelet Count <95*10^9/L; n=315Platelet Count >700*10^9/L; n=315Mean Corpuscular Volume <60 fL; n=315Mean Corpuscular Volume >120 fL; n=315Eosinophils >10%; n=316Monocytes >30%; n=316
Levodopa-Carbidopa Intestinal Gel (LCIG)0427300210100070

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Number of Participants With Potentially Clinically Significant Vital Sign Parameters

Terms abbreviated in the table include supine systolic blood pressure (SuSBP), standing systolic blood pressure (StSBP), orthostatic systolic blood pressure (OSBP), supine diastolic blood pressure (SuDBP), standing diastolic blood pressure (StDBP), orthostatic diastolic blood pressure (ODBP), supine pulse (SuP) in beats per minute (bpm), standing pulse (StP), and body temperature (Temp). Increase and decrease are signified by ↑ and ↓, respectively. (NCT00335153)
Timeframe: up to 56 weeks

Interventionparticipants (Number)
SuSBP >=180 and >40 mm Hg ↑ from BL; n=324SuSBP <=90 and >30 mm Hg ↓ from BL; n=324StSBP >=180 and >40 mm Hg ↑ from BL; n=324StSBP <=90 and >30 mm Hg ↓ from BL; n=324OSBP: ↓ >=30 mm Hg (Supine to Standing); n=324SuDBP >=105 and >30 mm Hg ↑ from BL; n=324SuDBP <=50 and >30 mm Hg ↓ from BL; n=324StDBP >=105 and >30 mm Hg ↑ from BL; n=324StDBP <=50 and >30 mm Hg ↓ from BL; n=324ODBP: ↓ >=20 mm Hg (Supine to Standing); n=324SuP >=120 and >30 bpm ↑ from BL; n=324SuP <=50 and >30 bpm ↓ from BL; n=324StP >=120 and >30 bpm ↑ from BL; n=324StP <=50 and >30 bpm ↓ from BL; n=324Temp >=38.3 and >1.1°C ↑ from BL; n=322Weight >=7% ↑ from BL; n=272Weight <=7% ↓ from BL; n=272
Levodopa-Carbidopa Intestinal Gel (LCIG)4172358051181259010022579

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Number of Participants With Sleep Attacks at Baseline

To prospectively monitor for the possible development of sleep attacks, participants were asked if they had experienced any events in which they fell asleep suddenly or unexpectedly, including while engaged in some activity (e.g., eating/drinking, speaking, or driving) or at rest, with or without any previous warning of sleepiness. Those participants who reported 1 or more sleep attacks were asked to report the number of sleep attacks they experienced, whether they experienced sleepiness or drowsiness prior to the sleep attack, whether they experienced a 'bad' outcome or problem due to a sleep attack, and if so, how many 'bad' outcomes or problems they experienced. (NCT00335153)
Timeframe: Baseline

Interventionparticipants (Number)
Participants with >=1 Sleep AttacksNumber of Sleep Attacks Per Participant=1Number of Sleep Attacks Per Participant=2Number of Sleep Attacks Per Participant=3Number of Sleep Attacks Per Participant>3Number of Sleep Attacks Per Participant=MissingSleepiness/Drowsiness Prior to Sleep AttackBad Outcome/Problem Due to Sleep AttackNumber of Bad Outcomes/Problems=1Number of Bad Outcomes/Problems=2Number of Bad Outcomes/Problems=3Number of Bad Outcomes/Problems>3
Levodopa-Carbidopa Intestinal Gel (LCIG)740021411000

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Number of Participants With Sleep Attacks During the Post-PEG Long-Term Treatment Period

To prospectively monitor for the possible development of sleep attacks, participants were asked if they had experienced any events in which they fell asleep suddenly or unexpectedly, including while engaged in some activity (e.g., eating/drinking, speaking, or driving) or at rest, with or without any previous warning of sleepiness. Those participants who reported 1 or more sleep attacks were asked to report the number of sleep attacks they experienced, whether they experienced sleepiness or drowsiness prior to the sleep attack, whether they experienced a 'bad' outcome or problem due to a sleep attack, and if so, how many 'bad' outcomes or problems they experienced. (NCT00335153)
Timeframe: During the Post-PEG Long-Term Treatment Period (Day 28 through Day 378)

Interventionparticipants (Number)
Participants with >=1 Sleep AttacksNumber of Sleep Attacks Per Participant=1Number of Sleep Attacks Per Participant=2Number of Sleep Attacks Per Participant=3Number of Sleep Attacks Per Participant>3Sleepiness/Drowsiness Prior to Sleep AttackBad Outcome/Problem Due to Sleep AttackNumber of Bad Outcomes/Problems=1Number of Bad Outcomes/Problems=2Number of Bad Outcomes/Problems=3Number of Bad Outcomes/Problems>3
Levodopa-Carbidopa Intestinal Gel (LCIG)27112591122000

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Summary of Minnesota Impulsive Disorder Interview (MIDI) Assessment of Intense Impulsive Behavior at Baseline (BL) and During the Post-PEG Long-term Treatment (PPLT) Period

The MIDI is a validated assessment of impulsive behavior consisting of a semistructured clinical interview assessing pathological gambling, trichotillomania (compulsive hair-pulling), kleptomania (compulsive stealing), pyromania (compulsive fire setting), intermittent explosive disorder, compulsive buying, and compulsive sexual behavior. (NCT00335153)
Timeframe: Baseline, during the Post-PEG Long-term Treatment Period (Day 28 through Day 378)

Interventionparticipants (Number)
BL Compulsive Buying; n=322BL Kleptomania; n=322BL Trichotillomania; n=322BL Intermittent Explosive Disorder; n=322BL Pyromania; n=322BL Pathological Gambling; n=322BL Compulsive Sexual Behavior; n=322PPLT Compulsive Buying; n=318PPLT Kleptomania; n=318PPLT Trichotillomania; n=318PPLT Intermittent Explosive Disorder; n=318PPLT Pyromania; n=318PPLT Pathological Gambling; n=318PPLT Compulsive Sexual Behavior; n=318
Levodopa-Carbidopa Intestinal Gel (LCIG)000002930000611

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Summary Index at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. These include: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. The PDQ-39 Summary Index is the sum of all answers divided by the highest score possible (i.e. number of answers multiplied by 4) which is multiplied by 100 to put the score on a 0-100 scale. Higher scores are associated with more severe symptoms. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)42.7-6.9

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Number of Participants Taking at Least 1 Concomitant Medication During the Study

Concomitant medications include those started on or after the first open-label LCIG infusion as well as medications started prior to the first open-label infusion but continued during the study. (NCT00335153)
Timeframe: Screening up to Day 378

Interventionparticipants (Number)
Levodopa-Carbidopa Intestinal Gel (LCIG)349

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Number of Participants With Confirmed Cases of Melanoma

A comprehensive assessment for the presence of melanoma was performed during the screening period and at early termination or end of study by a dermatologist experienced with the diagnosis of the condition. If a suspicious lesion was present, a biopsy was obtained for proper diagnosis. (NCT00335153)
Timeframe: Screening up to Day 378

Interventionparticipants (Number)
Levodopa-Carbidopa Intestinal Gel (LCIG)0

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"Change From Baseline in Average Daily Normalized On Time With Troublesome Dyskinesia at Endpoint"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis." (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionhours (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)1.60-0.36

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"Change From Baseline in Average Daily Off Time at Endpoint"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. Negative change from baseline for off time indicates improvement." (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionhours (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)6.77-4.44

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"Change From Baseline in Average Daily On Time Without Troublesome Dyskinesia at Endpoint"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. On time without troublesome dyskinesia (involuntary muscle movement) is defined as on time without dyskinesia and on time with non-troublesome dyskinesia. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. Positive change from Baseline for on time without troublesome dyskinesia indicates improvement." (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionhours (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)4.833.86

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Change From Baseline in Abnormal Involuntary Movement Scale (AIMS) Total Score at Endpoint

"The AIMS is an investigator-completed rating scale that has a total of 12 items rating involuntary movements of various areas of the participant's body. Items 1 through 10 are rated on a 5-point scale of severity from 0 (none), 1 (minimal), 2 (mild), 3 (moderate), to 4 (severe), and items 11 and 12 are yes/no questions regarding issues with teeth or dentures. The total AIMS score was calculated by summing items 1-10, with a possible range of 0-40; a negative change indicates improvement. The AIMS was to be performed at consistent times, when the subject was experiencing his/her worst On time (dyskinesia [involuntary muscle movement])." (NCT00335153)
Timeframe: Baseline, Endpoint (last Post-PEG Long-Term Period visit up to Day 378)

Interventionunits on a scale (Mean)
Baseline; n=318Change from Baseline at Endpoint; n=317
Levodopa-Carbidopa Intestinal Gel (LCIG)9.6-1.7

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Change From Baseline in EuroQol Quality of Life Scale (EQ-5D) Summary Index at Endpoint

The EQ-5D is a participant answered questionnaire scoring 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. EQ-5D health states, defined by the EQ-5D descriptive system, are converted into a single summary index by applying a formula that essentially attaches values (also called QOL weights or QOL utilities) to each of the levels in each dimension. EQ-5D Summary Index values range from -0.11 to 1.00 with positive change indicating improvement. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)0.5880.064

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Change From Baseline in EuroQol Quality of Life Scale (EQ-5D) Visual Analogue Scale (VAS) at Endpoint

The EQ-5D VAS records the participant's self-rated health on a scale from 0-100 where 100 is the 'best imaginable health state' and 0 is the 'worst imaginable health state'. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)50.214.0

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Activities of Daily Living Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Activities of Daily Living (e.g., difficulty cutting food) includes 6 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)50.7-8.3

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Bodily Discomfort Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Bodily Discomfort includes 3 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00335153)
Timeframe: Baseline, Endpoint (last post-baseline visit up to Day 378)

Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
Levodopa-Carbidopa Intestinal Gel (LCIG)46.2-5.8

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Questions 32, 33, and 34 at Week 12

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. Questions 32, 33, and 34 on UPDRS Part IV were totaled to evaluate dyskinesias. Each of these questions is measured on a 5-point scale (0-4). The Part IV dyskinesia score will range from 0-12 and higher scores are associated with more disability. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules0.4
Placebo Gel + Levodopa-Carbidopa Capsules0.8

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Score at Week 12

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part IV Score is the sum of the answers to the 11 questions that comprise Part IV, each of which are measured on a 5-point scale (0-4) or a 2-point scale (0 or 1). The Part IV score ranges from 0-23 and higher scores are associated with more disability. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-1.1
Placebo Gel + Levodopa-Carbidopa Capsules0.1

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Total Score at Week 12

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The total score is the sum of the responses to the 31 questions (44 answers) that comprise Parts I-III of the scale. The total score will range from 0-176, with 176 representing the worst (total) disability, and 0 no disability. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-3.6
Placebo Gel + Levodopa-Carbidopa Capsules-2.1

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Change From Baseline in UPDRS Part III Score at Week 12

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part III score is the sum of the 27 answers provided to the 14 Part III questions, each of which are measured on a 5-point scale (0-4). The Part III score ranges from 0-108 and higher scores are associated with more disability. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-1.5
Placebo Gel + Levodopa-Carbidopa Capsules-2.9

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Change From Baseline in Zarit Burden Interview (ZBI) Total Score at Week 12

The ZBI is a 22-item questionnaire regarding the caregiver/subject relationship and evaluates the caregiver's health condition, psychological well-being, finances and social life. Each question is answered on a 5-point scale (0=Never, 1=Rarely, 2=Sometimes, 3=Quite frequently, and 4= Nearly always). The caregiver burden is evaluated by the total score (Range 0 to 88) obtained from the sum of the answers to the 22 questions. Higher scores are associated with a higher level of burden for the caregiver. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-2.8
Placebo Gel + Levodopa-Carbidopa Capsules1.7

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Clinical Global Impression - Status (CGI-S) Score at Baseline and Clinical Global Impression - Improvement (CGI-I) Score at Week 12

The CGI-S is a global assessment by the Investigator of current symptomatology and impact of illness on functioning. The ratings of the CGI-S are as follows: 1 = normal, 2 = borderline ill, 3 = mildly ill, 4 = moderately ill, 5 = markedly ill, 6 = severely ill, and 7 = among the most extremely ill. The CGI-I is a global assessment by the Investigator of the change in clinical status since the start of treatment. The CGI-I ratings are as follows: 1 = very much improved, 2 = much improved, 3 = minimally improved, 4 = no change, 5 = minimally worse, 6 = much worse, 7 = very much worse. (NCT00357994)
Timeframe: Baseline, Week 12

,
Interventionunits on a scale (Mean)
CGI-S at BaselineCGI-I at Week 12
LCIG + Placebo Capsules4.22.3
Placebo Gel + Levodopa-Carbidopa Capsules4.63.2

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Employment Impairment (EMP) I Status at Baseline

The EMP instruments are designed to collect information regarding employment and ability to run a household. EMP I questions include: Are you currently in paid employment? (If yes, at which percentage have you been working during the last 4 weeks?); Have you got someone to run your household for you? (If yes, how much time per week does he/she spend in your household?); Are you retired? (If yes, for which reason?). (NCT00357994)
Timeframe: Baseline

,
Interventionparticipants (Number)
Paid Employment (PE)=YesPE=Yes, 100% of Past 4 WeeksPE=Yes, 75% of Past 4 WeeksPE=Yes, 50% of Past 4 WeeksPE=Yes, 25% of Past 4 WeeksPE=Yes, Other % of Past 4 WeeksPE=NoSomeone Else Runs the Household (SRH)=YesSRH=Yes, 100% of Time per WeekSRH=Yes, 75% of Time per WeekSRH=Yes, 50% of Time per WeekSRH=Yes, 25% of Time per WeekSRH=Yes, Other % of Time per WeekSRH=NoAre You Retired (R)=YesR=Yes, Old Age PensionerR=Yes, Premature Due to PDR=Yes, Premature Due to Other ConditionR=Yes, Other ReasonR=No
LCIG + Placebo Capsules1062011252415332111248131211
Placebo Gel + Levodopa-Carbidopa Capsules8312112325134512623812128

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"Change From Baseline in Average Daily Normalized On Time Without Troublesome Dyskinesia at Week 12"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. On time without troublesome dyskinesia (involuntary muscle movement) is defined as on time without dyskinesia and on time with non-troublesome dyskinesia. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. Positive change from Baseline for on time without troublesome dyskinesia indicates improvement." (NCT00357994)
Timeframe: Baseline, Week 12

Interventionhours (Least Squares Mean)
LCIG + Placebo Capsules4.11
Placebo Gel + Levodopa-Carbidopa Capsules2.24

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part I Score at Week 12

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part I Score is the sum of the answers to the 4 questions that comprise Part I, each of which are measured on a 5-point scale (0-4). The Part I score ranges from 0-16 and higher scores are associated with more disability. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-0.2
Placebo Gel + Levodopa-Carbidopa Capsules-0.5

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Summary Index at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. These include: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. The PDQ-39 Summary Index is the sum of all answers divided by the highest score possible (i.e. number of answers multiplied by 4) which is multiplied by 100 to put the score on a 0-100 scale. Higher scores are associated with more severe symptoms. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-10.9
Placebo Gel + Levodopa-Carbidopa Capsules-3.9

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"Change From Baseline in Average Daily Normalized On Time With Troublesome Dyskinesia at Week 12"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis." (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-0.11
Placebo Gel + Levodopa-Carbidopa Capsules-0.03

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Change From Baseline in EuroQual Quality of Life - 5 Dimensions (EQ-5D) Summary Index at Week 12

The EQ-5D is a participant answered questionnaire scoring 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. EQ-5D health states, defined by the EQ-5D descriptive system, are converted into a single summary index by applying a formula that essentially attaches values (also called QOL weights or QOL utilities) to each of the levels in each dimension. EQ-5D Summary Index values range from -0.11 to 1.00 with positive change indicating improvement. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules0.054
Placebo Gel + Levodopa-Carbidopa Capsules-0.016

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Activities of Daily Living Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Activities of Daily Living (e.g., difficulty cutting food) includes 6 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-12.9
Placebo Gel + Levodopa-Carbidopa Capsules-1.3

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Bodily Discomfort Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Bodily Discomfort includes 3 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-13.5
Placebo Gel + Levodopa-Carbidopa Capsules-10.2

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Cognition Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Cognition includes 4 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-7.3
Placebo Gel + Levodopa-Carbidopa Capsules-3.2

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"Change From Baseline to Week 12 in Average Daily Normalized Off Time"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. Negative change from baseline for off time indicates improvement." (NCT00357994)
Timeframe: Baseline, Week 12

Interventionhours (Least Squares Mean)
LCIG + Placebo Capsules-4.04
Placebo Gel + Levodopa-Carbidopa Capsules-2.14

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Communication Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Communication includes 3 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-9.5
Placebo Gel + Levodopa-Carbidopa Capsules4.4

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Emotional Well-Being Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Emotional Well-being (e.g., feelings of isolation) includes 6 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-7.1
Placebo Gel + Levodopa-Carbidopa Capsules-4.9

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Mobility Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Mobility (e.g., fear of falling when walking) includes 10 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-17.3
Placebo Gel + Levodopa-Carbidopa Capsules-6.8

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Change From Baseline in EuroQol Quality of Life Scale (EQ-5D) Visual Analogue Scale (VAS) at Week 12

The EQ-5D VAS records the participant's self-rated health on a scale from 0-100 where 100 is the 'best imaginable health state' and 0 is the 'worst imaginable health state.' (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules5.2
Placebo Gel + Levodopa-Carbidopa Capsules-6.3

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score at Week 12

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part II score is the sum of the answers to the 13 questions that comprise Part II, each of which are measured on a 5-point scale (0-4). The Part II score ranges from 0-52 and higher scores are associated with more disability. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-1.8
Placebo Gel + Levodopa-Carbidopa Capsules1.3

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Stigma Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Stigma (e.g., social embarrassment) consists of 4 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-8.9
Placebo Gel + Levodopa-Carbidopa Capsules-4.5

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Social Support Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Social Support includes 3 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00357994)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-3.9
Placebo Gel + Levodopa-Carbidopa Capsules-0.1

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Employment Impairment (EMP) II Status at Week 12

The EMP instruments are designed to collect information regarding employment and ability to run a household. EMP I questions include: Are you currently in paid employment? (If yes, at which percentage have you been working during the last 4 weeks?); Have you got someone to run your household for you? (If yes, how much time per week does he/she spend in your household?); Are you retired? (If yes, for which reason?) The retirement question (from EMP I) is excluded from the EMP II instrument. (NCT00357994)
Timeframe: Week 12 (or early termination)

,
Interventionparticipants (Number)
Paid Employment (PE)=YesPE=Yes, 100% of Past 4 WeeksPE=Yes, 75% of Past 4 WeeksPE=Yes, 50% of Past 4 WeeksPE=Yes, 25% of Past 4 WeeksPE=Yes, Other % of Past 4 WeeksPE=NoSomeone Else Runs the Household (SRH)=YesSRH=Yes, 100% of Time per WeekSRH=Yes, 75% of Time per WeekSRH=Yes, 50% of Time per WeekSRH=Yes, 25% of Time per WeekSRH=Yes, Other % of Time per WeekSRH=No
LCIG + Placebo Capsules1061102252213502213
Placebo Gel + Levodopa-Carbidopa Capsules51121026241244227

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Summary Index at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. These include: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. The PDQ-39 Summary Index is the sum of all answers divided by the highest score possible (i.e. number of answers multiplied by 4) which is multiplied by 100 to put the score on a 0-100 scale. Higher scores are associated with more severe symptoms. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)26.9-0.7
LCIG (Previous: LCIG + Placebo Capsules)22.21.5
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)32.8-3.5

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part I Score at Endpoint

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part I Score is the sum of the answers to the 4 questions that comprise Part I, each of which are measured on a 5-point scale (0-4). The Part I score ranges from 0-16 and higher scores are associated with more disability. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)1.40.5
LCIG (Previous: LCIG + Placebo Capsules)1.60.3
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)1.20.7

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score at Endpoint

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part II score is the sum of the answers to the 13 questions that comprise Part II, each of which are measured on a 5-point scale (0-4). The Part II score ranges from 0-52 and higher scores are associated with more disability. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)10.1-0.2
LCIG (Previous: LCIG + Placebo Capsules)8.60.5
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)12.1-1.0

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score at Endpoint

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part III score is the sum of the 27 answers provided to the 14 Part III questions, each of which are measured on a 5-point scale (0-4). The Part III score ranges from 0-108 and higher scores are associated with more disability. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)17.40.6
LCIG (Previous: LCIG + Placebo Capsules)16.21.5
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)19.0-0.5

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Score at Endpoint

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part IV Score is the sum of the answers to the 11 questions that comprise Part IV, each of which are measured on a 5-point scale (0-4) or a 2-point scale (0 or 1). The Part IV score ranges from 0-23 and higher scores are associated with more disability. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)6.3-1.5
LCIG (Previous: LCIG + Placebo Capsules)5.8-1.6
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)7.0-1.4

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Total Score at Endpoint

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The total score is the sum of the responses to the 31 questions (44 answers) that comprise Parts I-III of the scale. The total score will range from 0-176, with 176 representing the worst (total) disability, and 0 representing no disability. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)29.00.9
LCIG (Previous: LCIG + Placebo Capsules)26.42.3
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)32.4-1.0

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Change From Baseline in Zarit Burden Interview (ZBI) Total Score at Endpoint

The ZBI is a 22-item questionnaire regarding the caregiver/subject relationship and evaluates the caregiver's health condition, psychological well-being, finances and social life. Each question is answered on a 5-point scale (0=never, 1=rarely, 2=sometimes, 3=quite frequently, and 4=nearly always). The caregiver burden is evaluated by the total score (range 0 to 88) obtained from the sum of the answers to the 22 questions. Higher scores are associated with a higher level of burden for the caregiver. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 months or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)24.3-0.2
LCIG (Previous: LCIG + Placebo Capsules)22.11.1
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)27.0-1.8

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Clinical Global Impression - Status (CGI-S) Score at Baseline and Clinical Global Impression - Improvement (CGI-I) Score at Endpoint

The CGI-S is a global assessment by the Investigator of current symptomatology and impact of illness on functioning. The ratings of the CGI-S are as follows: 1 = normal, 2 = borderline ill, 3 = mildly ill, 4 = moderately ill, 5 = markedly ill, 6 = severely ill, and 7 = among the most extremely ill. The CGI-I is a global assessment by the Investigator of the change in clinical status since the start of treatment. The CGI-I ratings are as follows: 1 = very much improved, 2 = much improved, 3 = minimally improved, 4 = no change, 5 = minimally worse, 6 = much worse, 7 = very much worse. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
CGI-S at Baseline; n=32, 28, 60CGI-I at Endpoint; n=33, 29, 62
LCIG (All Participants)3.32.2
LCIG (Previous: LCIG + Placebo Capsules)3.02.1
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)3.72.3

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Number of Participants With Adverse Events (AEs), Serious AEs (SAEs), Deaths and Discontinuations Due to AEs

AE=any untoward medical occurrence which does not necessarily have a causal relationship with this treatment. SAE=any untoward medical occurrence that: results in death; is life-threatening (an event in which the subject was at risk of death at the time of the event); requires inpatient hospitalization or prolongation of an existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; or other important medical events. Treatment-emergent events (TEAE or TESAE)=those starting after the first dose of study drug. Severe=severity reported as 'severe' or missing. Possibly or Probably Treatment Related=drug-event relationship reported as 'possible', 'probable' or missing. Death=a fatal outcome of an SAE or AE. (NCT00360568)
Timeframe: From study enrollment to the end of study or early termination of treatment, including the removal of PEG-J, plus 30 days.

,,
Interventionparticipants (Number)
DeathsTE Deaths>=1 SAE>=1 TESAE>=1 TEAE Leading to Study Termination>=1 TEAE>=1 Severe TEAE>=1 Possibly or ProbablyTreatment-Related TEAENo TEAEs
LCIG (All Participants)00141435915483
LCIG (Previous: LCIG + Placebo Capsules)00551315282
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)009922810201

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Number of Participants With Clinically Significant Neurological Examination Findings

"The neurologic examination was to be done during On time. The neurological examination assessed: cranial nerves - assessment of cranial nerves II - XII, excluding fundoscopic examination; motor system - assessment of tone, strength, and abnormal movements; sensory system - including light touch, pinprick, joint position, and vibratory sense; reflexes - assessment of deep tendon reflexes and plantar responses (Babinski sign); coordination - assessment of upper and lower extremities; gait - assessment of base and tandem gait; station - assessment of posture and stability." (NCT00360568)
Timeframe: up to 12 months

,,
Interventionparticipants (Number)
Cranial NerveMotor SystemSensory SystemReflexesCoordinationGaitStation
LCIG (All Participants)0532144
LCIG (Previous: LCIG + Placebo Capsules)0321122
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)0211022

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Number of Participants With Device Complications

Complications of the infusion device were collected. Pump, intestinal tube, PEG, stoma, and other complications included (but were not limited to) device breakage, device leakage, device malfunction, device misuse, device occlusion, intentional and unintentional device removal by participant, complication of device insertion, device dislocation, device breakage, device dislocation, and device site reaction. (NCT00360568)
Timeframe: 12 months

,,
Interventionparticipants (Number)
>=1 ComplicationPump ComplicationIntestinal Tube ComplicationPEG ComplicationStoma ComplicationOther
LCIG (All Participants)503431222710
LCIG (Previous: LCIG + Placebo Capsules)26181511126
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)24161611154

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Number of Participants With Potentially Clinically Significant Electrocardiogram (ECG) Parameters

Terms abbreviated in the table include heart rate (HR) in beats per minute (bpm), PR interval (PRI), QT interval corrected for heart rate using Bazett's formula (QTcB), and QT interval corrected for heart rate using Fridericia's formula (QTcF). Increase and decrease are signified by ↑ and ↓, respectively. (NCT00360568)
Timeframe: 12 months

,,
Interventionparticipants (Number)
HR <=50 and >30 bpm ↓ from BL; n=33, 28, 61HR >=120 and >30 bpm ↑ from BL; n=33, 28, 61PR Interval <120 msec; n=33, 27, 60PR Interval >220 msec; n=33, 27, 60QTcB Interval >480 msec; n=33, 27, 60QTcB Interval >60 msec ↑ from BL; n=33, 27, 60QTcF Interval >480 msec; n=33, 27, 60QTcF Interval >60 msec ↑ from BL; n=33, 27, 60
LCIG (All Participants)00110000
LCIG (Previous: LCIG + Placebo Capsules)00110000
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)00000000

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Number of Participants With Potentially Clinically Significant Values for Clinical Chemistry Parameters

Terms abbreviated in the table include upper limit of normal (ULN), male (m), and female (f). (NCT00360568)
Timeframe: 12 months

,,
Interventionparticipants (Number)
Sodium <126 mmol/L; n=33, 28, 61Sodium >156 mmol/L; n=33, 28, 61Albumin <25 g/L; n=27, 20, 47Albumin >70 g/L; n=27, 20, 47Potassium <3.0 mmol/L; n=33, 28, 61Potassium >6.0 mmol/L; n=33, 28, 61Creatinine >177 µmol/L; n=33, 28, 61Calcium <1.75 mmol/L; n=33, 28, 61Calcium >3.0 mmol/L; n=33, 28, 61Total Protein <45 g/L; n=33, 28, 61Total Bilirubin >2xULN; n=33, 28, 61Aspartate Aminotransferase >3xULN; n=33, 28, 61Alanine Aminotransferase >3xULN; n=33, 28, 61Gamma-glutamyl Transpeptidase >3x ULN;n=33, 28, 61Lactate dehydrogenase >3x ULN; n=33, 28, 61Alkaline Phosphatase >400 U/L; n=33, 28, 61Creatine Phosphokinase >3x ULN; n=33, 28, 61Non-fasting Glucose <2.78 mmol/L; n=33, 28, 61Non-fasting Glucose >16.0 mmol/L; n=33, 28, 61Uric Acid>500µmol/L(f);>590µmol/L(m);n=33, 28, 61Blood Urea Nitrogen >10.8 mmol/L; n=28, 22, 50Cholesterol >12.9 mmol/L; n=33, 28, 61Triglycerides >5.6 mmol/L; n=33, 28, 61
LCIG (All Participants)00000000000002000000300
LCIG (Previous: LCIG + Placebo Capsules)00000000000001000000300
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)00000000000001000000000

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Number of Participants With Potentially Clinically Significant Values for Hematology Parameters

Terms abbreviated in the table include females (f) and males (m). (NCT00360568)
Timeframe: 12 months

,,
Interventionparticipants (Number)
Red Blood Cells <2.0 10^12/L (f); <2.5 10^12/L (m)Haemoglobin <90 g/L (f); <100 g/L (m)Haematocrit <30% (f); <34% (m)White Blood Cells <2.8 10^9/LWhite Blood Cells >16.0 10^9/LNeutrophils, Absolute <1.2 10^9/LLymphocytes >80%Lymphocytes, Absolute <.75 10^9/LEosinophils >10%Monocytes >30%Platelet Count <95 10^9/LPlatelet Count >700 10^9/LMean Corpuscular Volume <60 fLMean Corpuscular Volume >120 fL
LCIG (All Participants)01200002000000
LCIG (Previous: LCIG + Placebo Capsules)00100002000000
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)01100000000000

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Number of Participants With Potentially Clinically Significant Vital Sign Parameters

Terms abbreviated in the table include supine systolic blood pressure (SuSBP), standing systolic blood pressure (StSBP), orthostatic systolic blood pressure (OSBP), supine diastolic blood pressure (SuDBP), standing diastolic blood pressure (StDBP), orthostatic diastolic blood pressure (ODBP), supine pulse (SuP) in beats per minute (bpm), standing pulse (StP), and body temperature (Temp). Increase and decrease are signified by ↑ and ↓, respectively. (NCT00360568)
Timeframe: 12 months

,,
Interventionparticipants (Number)
SuSBP <=90 and >30 mm Hg ↓ from BL; n=33, 29, 62SuSBP >=180 and >40 mm Hg ↑ from BL; n=33, 29, 62StSBP <=90 and >30 mm Hg ↓ from BL; n=33, 29, 62StSBP >=180 and >40 mm Hg ↑ from BL; n=33, 29, 62OSBP: ↓ >=30 mm Hg Supine to Standing; n=33,29,62SuDBP <=50 and >30 mm Hg ↓ from BL; n=33, 29, 62SuDBP >=105 and >30 mm Hg ↑ from BL; n=33, 29, 62StDBP <=50 and >30 mm Hg ↓ from BL; n=33, 29, 62StDBP >=105 and >30 mm Hg ↑ from BL; (n=33,29,62)ODBP: ↓ >=20 mm Hg Supine to Standing; n=33,29,62SuP <=50 and >30 bpm ↓ from BL; n=33, 29, 62SuP >=120 and >30 bpm ↑ from BL; n=33, 29, 62StP <=50 and >30 bpm ↓ from BL; n=33, 29, 62StP >=120 and >30 bpm ↑ from BL; n=33, 29, 62Temp >=38.3° and >=1.1°C ↑ from BL; n=33, 29, 62Weight <=7% ↓ from BL; n=33, 27, 60Weight >=7% ↑ from BL; n=33, 27, 60
LCIG (All Participants)3311019121314100101016
LCIG (Previous: LCIG + Placebo Capsules)31408011271000058
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)027011110170001058

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Number of Participants With Sleep Attacks at Baseline and Endpoint

To prospectively monitor for the possible development of sleep attacks, participants were asked if they had experienced any events in which they fell asleep suddenly or unexpectedly, including while engaged in some activity (e.g., eating/drinking, speaking, or driving) or at rest, with or without any previous warning of sleepiness. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionparticipants (Number)
Participants with >=1 Sleep Attacks at BaselineParticipants with >=1 Sleep Attacks at Endpoint
LCIG (All Participants)00
LCIG (Previous: LCIG + Placebo Capsules)00
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)00

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Summary of Minnesota Impulsive Disorder Interview (MIDI) Assessment of Intense Impulsive Behavior at Baseline (BL) and Post-baseline (PBL)

The MIDI is a validated assessment of impulsive behavior consisting of a semistructured clinical interview assessing pathological gambling, trichotillomania (compulsive hair-pulling), kleptomania (compulsive stealing), pyromania (compulsive fire-setting), intermittent explosive disorder, compulsive buying, and compulsive sexual behavior. (NCT00360568)
Timeframe: Baseline, Post-baseline (up to Month 12)

,,
Interventionparticipants (Number)
BL Pathological Gambling; n=33, 29, 62BL Trichotillomania; n=33, 29, 62BL Kleptomania; n=33, 29, 62BL Pyromania; n=33, 29, 62BL Intermittent Explosive Disorder; n=33, 29, 62BL Compulsive Buying; n=33, 29, 62BL Compulsive Sexual Behavior; n=33, 29, 62PBL Pathological Gambling; n=33, 27, 60PBL Trichotillomania; n=33, 27, 60PBL Kleptomania; n=33, 27, 60PBL Pyromania; n=33, 27, 60PBL Intermittent Explosive Disorder; n=33, 27, 60PBL Compulsive Buying; n=33, 27, 60PBL Compulsive Sexual Behavior; n=33, 27, 60
LCIG (All Participants)00000110000012
LCIG (Previous: LCIG + Placebo Capsules)00000000000012
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)00000110000000

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Columbia-Suicide Severity Rating Scale (C-SSRS) Findings

The Columbia-Suicide Severity Rating Scale (C-SSRS) is a systematically administered instrument developed to track suicidal adverse events across a treatment study. The instrument is designed to assess suicidal behavior and ideation, track and assess all suicidal events, as well as the lethality of attempts. Suicidal ideation categories include the following: wish to be dead; nonspecific active suicidal thoughts; active suicidal ideation without intent to act; active suicidal ideation with some intent to act but no plan; active suicidal ideation with plan and intent. Suicidal behavior categories include the following: actual attempt; interrupted attempt; aborted attempt; preparatory acts or behavior; suicidal behavior; completed suicide. (NCT00360568)
Timeframe: up to 12 months

,,
Interventionparticipants (Number)
Participants with Suicidal IdeationsParticipants with Suicidal Ideations OnlyParticipants with Suicidal BehaviorsParticipants with Suicidal Behaviors or Ideations
LCIG (All Participants)0000
LCIG (Previous: LCIG + Placebo Capsules)0000
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)0000

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Number of Participants Taking at Least 1 Concomitant Medication During the Study

Concomitant medications include medications started on or after the first open-label LCIG infusion as well as medications started prior to the first open-label infusion but continued during the study. (NCT00360568)
Timeframe: 12 months

Interventionparticipants (Number)
LCIG (Previous: LCIG + Placebo Capsules)33
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)29
LCIG (All Participants)62

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Number of Participants With Confirmed Cases of Melanoma

A comprehensive assessment for the presence of melanoma was performed during the screening period and at early termination/end of study by a dermatologist experienced with the diagnosis of the condition. If a suspicious lesion was present, a biopsy was obtained for proper diagnosis. (NCT00360568)
Timeframe: up to Month 12

Interventionparticipants (Number)
LCIG (Previous: LCIG + Placebo Capsules)0
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)0
LCIG (All Participants)0

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"Change From Baseline in Average Daily Normalized On Time With Troublesome Dyskinesia at Endpoint"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis." (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionhours (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)0.97-0.24
LCIG (Previous: LCIG + Placebo Capsules)1.09-0.58
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)0.820.15

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"Change From Baseline in Average Daily Off Time at Endpoint"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. Negative change from baseline for off time indicates improvement." (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionhours (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)3.92-1.30
LCIG (Previous: LCIG + Placebo Capsules)2.87-0.42
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)5.18-2.34

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"Change From Baseline in Average Daily On Time Without Troublesome Dyskinesia at Month 12"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. On time without troublesome dyskinesia (involuntary muscle movement) is defined as on time without dyskinesia and on time with non-troublesome dyskinesia. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. Positive change from Baseline for on time without troublesome dyskinesia indicates improvement." (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionhours (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)11.111.54
LCIG (Previous: LCIG + Placebo Capsules)12.041.00
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)10.002.19

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Change From Baseline in Abnormal Involuntary Movement Scale (AIMS) Total Score at Endpoint

"The AIMS is an investigator-completed rating scale that has a total of 12 items rating involuntary movements of various areas of the participant's body. Items 1 through 10 are rated on a 5-point scale of severity from 0 (none), 1 (minimal), 2 (mild), 3 (moderate), to 4 (severe), and items 11 and 12 are yes/no questions concerning problems with teeth or dentures. The total AIMS score was calculated by summing items 1-10, with a possible range of 0-40; a negative change indicates improvement. The AIMS was to be performed at consistent times, when the subject was experiencing his/her worst On time (dyskinesia [involuntary muscle movement])." (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
Baseline; n=33, 29, 62Change from Baseline at Endpoint; n=33, 27, 60
LCIG (All Participants)5.75.6
LCIG (Previous: LCIG + Placebo Capsules)6.16.1
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)5.35.0

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Change From Baseline in EuroQol Quality of Life Scale (EQ-5D) Summary Index at Endpoint

The EQ-5D is a participant answered questionnaire scoring 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. EQ-5D health states, defined by the EQ-5D descriptive system, are converted into a single summary index by applying a formula that essentially attaches values (also called QOL weights or QOL utilities) to each of the levels in each dimension. EQ-5D Summary Index values range from -0.11 to 1.00 with positive change indicating improvement. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)0.733-0.008
LCIG (Previous: LCIG + Placebo Capsules)0.778-0.009
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)0.676-0.006

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Change From Baseline in EuroQol Quality of Life Scale (EQ-5D) Visual Analogue Scale (VAS) at Endpoint

The EQ-5D VAS records the participant's self-rated health on a scale from 0-100 where 100 is the 'best imaginable health state' and 0 is the 'worst imaginable health state.' (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)70.21.5
LCIG (Previous: LCIG + Placebo Capsules)76.7-0.9
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)62.14.5

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Activities of Daily Living Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Activities of Daily Living (e.g., difficulty cutting food) includes 6 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)31.9-2.8
LCIG (Previous: LCIG + Placebo Capsules)25.90.4
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)39.4-6.7

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Bodily Discomfort Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Bodily Discomfort includes 3 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
EndpointChange from Baseline at Endpoint
LCIG (All Participants)33.3-1.1
LCIG (Previous: LCIG + Placebo Capsules)32.1-2.8
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)34.91.0

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Cognition Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Cognition includes 4 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)19.32.4
LCIG (Previous: LCIG + Placebo Capsules)15.01.3
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)24.83.8

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Communication Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Communication includes 3 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)22.93.8
LCIG (Previous: LCIG + Placebo Capsules)15.98.3
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)31.7-1.9

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Emotional Well-Being Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Emotional Well-being (e.g., feelings of isolation) includes 6 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)22.83.1
LCIG (Previous: LCIG + Placebo Capsules)20.14.0
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)26.31.9

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Mobility Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Mobility (e.g., fear of falling when walking) includes 10 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)34.7-2.5
LCIG (Previous: LCIG + Placebo Capsules)27.62.3
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)43.8-8.5

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Social Support Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Social Support includes 3 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)14.2-0.2
LCIG (Previous: LCIG + Placebo Capsules)11.91.8
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)17.1-2.7

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Stigma Domain Score at Endpoint

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Stigma (e.g., social embarrassment) consists of 4 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00360568)
Timeframe: Baseline, Endpoint (Month 12 or last post-baseline visit)

,,
Interventionunits on a scale (Mean)
BaselineChange from Baseline at Endpoint
LCIG (All Participants)19.7-2.7
LCIG (Previous: LCIG + Placebo Capsules)16.40.2
LCIG (Previous: Placebo Gel + Levodopa-Carbidopa Capsules)23.8-6.3

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Change in the UPDRS Part I (Mentation, Behavior, and Mood) Score From Baseline to Month 3

The UPDRS is a standardized assessment scale used to measure a patient's disease state. It is completed by a blinded rater. There are 6 parts to the UPDRS. Part I (items 1-4; total score 0-16, calculated as the sum of the individual items) measures the patient's mentation, mood and behavior. A lower total score indicates greater symptom control. A negative change score indicates improvement. (NCT00391898)
Timeframe: Baseline to end of study (Month 3)

InterventionUnits on a scale (Mean)
Levodopa/Carbidopa/Entacapone-0.5
Levodopa/Carbidopa-0.2

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Change in the Unified Parkinson's Disease Rating Scale (UPDRS) Part II (Activities of Daily Living [ADL]) Score From Baseline to Month 3

The UPDRS is a standardized assessment scale used to measure a patient's disease state. It is completed by a blinded rater. There are 6 parts to the UPDRS. Part II (items 5-17; total score 0-52, calculated as the sum of the individual items) measures the patient's activities of daily living. A lower total score indicates greater symptom control. A negative change score indicates improvement. (NCT00391898)
Timeframe: Baseline to end of study (Month 3)

InterventionUnits on a scale (Mean)
Levodopa/Carbidopa/Entacapone-2.5
Levodopa/Carbidopa-0.5

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Change in the 39-item Parkinson's Disease Questionnaire (PDQ-39) Total Score From Baseline to Month 3

The PDQ-39 is an instrument used to assess quality of life in individuals with Parkinson's disease. The questionnaire provides scores on eight scales: Mobility, activities of daily living, emotions, stigma, social support, cognitions, communication, and bodily discomfort. Questions are scored on a 5-point Likert scale ranging from 1 (never) to 3 (sometimes) to 5 (always). The total score can range from 39 to 195. A lower score indicates better quality of life. A positive change score indicates an improvement. (NCT00391898)
Timeframe: Baseline to end of study (Month 3)

InterventionUnits on a scale (Mean)
Levodopa/Carbidopa/Entacapone6.3
Levodopa/Carbidopa0.8

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Patient and Investigator Global Evaluation of the Patient

Both the patient and the investigator made an evaluation of the change in the patient's condition by rating the condition of the patient at the end of the study compared to patient's condition at baseline. The rating was made on a scale ranging from -3 to +3: (-3: Very much improved, -2: much improved, -1: mild improvement, 0: no change, +1: mild deterioration, +2: much deterioration, +3: very much deterioration). A negative score indicates improvement. (NCT00391898)
Timeframe: Baseline to end of study (Month 3)

,
InterventionUnits on a scale (Mean)
Patient global evaluationInvestigator global evaluation
Levodopa/Carbidopa-0.4-0.3
Levodopa/Carbidopa/Entacapone-0.9-0.9

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Change on the QUICK Questionnaire (QQ) Score From Baseline to Month 3

The QQ is a self-administered questionnaire that includes 19 wearing-off (WO) symptoms (motor and non-motor). A positive answer to each of the 19 symptoms is given by patients if they presented with a symptom and the symptom disappeared after the next drug dose. Two positive answers are diagnostic of wearing-off (WO). A negative change score indicates improvement. (NCT00391898)
Timeframe: Baseline to end of study (Month 3)

InterventionPositive answers (Mean)
Levodopa/Carbidopa/Entacapone-0.6
Levodopa/Carbidopa-0.6

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Change in the UPDRS Part IV (Complications of Therapy) Score From Baseline to Month 3

Part IV of the UPDRS measures complications the patient may be experiencing with therapy and was only collected at and after the visit at which the first dyskinesia or episode of wearing-off was recorded. Part IV is composed of 3 sections and 11 items: A (32-35, dyskinesia), B (36-39, clinical fluctuations, C (40-42, other complications) (total score 0-23, calculated as the sum of the individual items). A lower total score indicates greater symptom control. A negative change score indicates improvement. (NCT00391898)
Timeframe: Baseline to end of study (Month 3)

InterventionUnits on a scale (Mean)
Levodopa/Carbidopa/Entacapone-0.6
Levodopa/Carbidopa-0.1

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Change in the UPDRS Part III (Motor Function) Score From Baseline to Month 3

The UPDRS is a standardized assessment scale used to measure a patient's disease state. It is completed by a blinded rater. There are 6 parts to the UPDRS. Part III (items 18-31; total score 0-56, calculated as the sum of the individual items) measures the patient's motor function. A lower total score indicates greater symptom control. A negative change score indicates improvement. (NCT00391898)
Timeframe: Baseline to end of study (Month 3)

InterventionUnits on a scale (Mean)
Levodopa/Carbidopa/Entacapone-4.0
Levodopa/Carbidopa-1.42

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Plasma Norepinephrine Concentrations After 400 mg of Droxidopa + 200 mg of Either Placebo, Carbidopa, or Entacapone

Blood samples were obtained at baseline and after drug administration at 1 hour, 2 hours, 3 hours, 6 hours, 24 hours, and 48 hours to assess plasma norepinephrine concentrations. (NCT00547911)
Timeframe: Up to 48 hours after receiving drug(s)

,,
Interventionnmol/L (Mean)
Baseline1 Hour2 Hour3 Hour6 Hour24 Hour48 Hour
LDOPS + CAR0.850.870.981.120.980.890.85
LDOPS + ENT1.081.061.491.691.621.090.84
LDOPS + Placebo0.870.891.171.271.260.850.70

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Plasma DHPG Concentrations After 400 mg of Droxidopa + 200 mg of Either Placebo, Carbidopa, or Entacapone

Blood samples were obtained at baseline and after drug administration at 1 hour, 2 hours, 3 hours, 6 hours, 24 hours, and 48 hours to assess plasma dihydroxyphenylglycol (DHPG) concentrations. (NCT00547911)
Timeframe: Up to 48 hours after receiving drug(s)

,,
Interventionnmol/L (Mean)
Baseline1 Hour2 Hour3 Hour6 Hour24 Hour48 Hour
LDOPS + CAR3.43.53.33.63.53.83.7
LDOPS + ENT3.58.016.619.310.74.13.8
LDOPS + Placebo3.44.15.46.15.73.43.4

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Plasma LDOPS Concentrations After 400 mg of Droxidopa + 200 mg of Either Placebo, Carbidopa, or Entacapone

Blood samples were obtained at baseline and after drug administration at 1 hour, 2 hours, 3 hours, 6 hours, 24 hours, and 48 hours to assess plasma droxidopa (LDOPS) concentrations. (NCT00547911)
Timeframe: Up to 48 hours after receiving drug(s)

,,
Interventionnmol/L (Mean)
Baseline1 Hour2 Hour3 Hour6 Hour24 Hour48 Hour
LDOPS + CAR0.00317317077905972421887
LDOPS + ENT0.897206891141200871723316
LDOPS + Placebo022467067869568432118

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Systolic Blood Pressures After 400 mg of Droxidopa + 200 mg of Either Placebo, Carbidopa, or Entacapone

Systolic blood pressure was assessed at baseline and after drug administration at 1 hour, 2 hours, 3 hours, 6 hours, and 24 hours. (NCT00547911)
Timeframe: Up to 24 hours after receiving drug(s)

,,
InterventionmmHg (Mean)
Baseline1 Hour2 Hour3 Hour6 Hour24 Hour
LDOPS + CAR143144144148146143
LDOPS + ENT139149158161159144
LDOPS + Placebo140148163165161149

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Diastolic Blood Pressures After 400 mg of Droxidopa + 200 mg of Either Placebo, Carbidopa, or Entacapone

Diastolic blood pressure was assessed at baseline and after drug administration at 1 hour, 2 hours, 3 hours, 6 hours, and 24 hours. (NCT00547911)
Timeframe: Up to 24 hours after receiving drug(s)

,,
InterventionmmHg (Mean)
Baseline1 Hour2 Hour3 Hour6 Hour24 Hour
LDOPS + CAR818081848281
LDOPS + ENT788591918981
LDOPS + Placebo808586888984

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Heart Rate After 400 mg of Droxidopa + 200 mg of Either Placebo, Carbidopa, or Entacapone

Heart rate was assessed at baseline and after drug administration at 1 hour, 2 hours, 3 hours, 6 hours, and 24 hours. (NCT00547911)
Timeframe: Up to 24 hours after receiving drug(s)

,,
InterventionBPM (Mean)
Baseline1 Hour2 Hour3 Hour6 Hour24 Hour
LDOPS + CAR666865646266
LDOPS + ENT676565646768
LDOPS + Placebo676566686766

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Plasma DHMA Concentrations After 400 mg of Droxidopa + 200 mg of Either Placebo, Carbidopa, or Entacapone

Blood samples were obtained at baseline and after drug administration at 1 hour, 2 hours, 3 hours, 6 hours, 24 hours, and 48 hours to assess plasma droxymandelic acid (DHMA) concentrations. (NCT00547911)
Timeframe: Up to 48 hours after receiving drug(s)

,,
Interventionnmol/L (Mean)
Baseline1 Hour2 Hour3 Hour6 Hour24 Hour48 Hour
LDOPS + CAR1.662.541.521.701.743.243.00
LDOPS + ENT0.974.5815.0419.9133.032.210.90
LDOPS + Placebo0.14.010.111.015.71.40.9

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"Measurement of Time in Minutes From When a Patient Was in a Clinical Off State, Took Their Medication and Went Into a Clinical on State"

"Time to on state (benefit with regard to mobility, stiffness and slowness) with parcopa versus carbidopa/levodopa immediate release compound. This measurement is compared between Parcopa and carbidopa/levodopa wit the first morning dose of each intervention. Study duration was 2 days." (NCT00590122)
Timeframe: first dose of day for each arm

Interventionminutes (Mean)
B-Parcopa Arm23.9
A-Carbidopa/Levodopa Arm28.5

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Change From Baseline on the Motor Score of the Quantitative Wearing-Off Questionnaire 9 Item (QWOQ-9)

"The QWOQ-9 is a self-rated questionnaire used to assess motor and non-motor symptoms of Parkinson's disease. The 5 motor symptoms are each measured on a five item (0-4) Likert scale, reflecting the severity of the item from not present to very severe. The range of possible score values of the motor subscale of the QWOQ-9 is 0 to 20. A higher score indicates greater disability. A negative change score indicates improvement." (NCT00642356)
Timeframe: Baseline to 15 minutes prior to 2nd dose at Week 8

InterventionUnits on a scale (Mean)
Carbidopa/Levodopa/Entacapone-1.2
Immediate Release Carbidopa/Levodopa0.0

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Change From Baseline on the Non-motor Score of the Quantitative Wearing-Off Questionnaire 9 Item (QWOQ-9)

"The QWOQ-9 is a self-rated questionnaire used to assess motor and non-motor symptoms of Parkinson's disease. The 4 non-motor symptoms are each measured on a five item (0-4) Likert scale, reflecting the severity of the item from not present to very severe. The range of possible score values of the non-motor subscale of the QWOQ-9 is 0 to 16. A higher score indicates greater disability. A negative change score indicates improvement." (NCT00642356)
Timeframe: Baseline to 15 minutes prior to 2nd dose at Week 8

InterventionUnits on a scale (Mean)
Carbidopa/Levodopa/Entacapone-0.9
Immediate Release Carbidopa/Levodopa-0.2

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Communication Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Communication includes 3 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-9.5
Placebo Gel + Levodopa-Carbidopa Capsules4.4

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Emotional Well-Being Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Emotional Well-being (e.g., feelings of isolation) includes 6 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-7.1
Placebo Gel + Levodopa-Carbidopa Capsules-4.9

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Mobility Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Mobility (e.g., fear of falling when walking) includes 10 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-17.3
Placebo Gel + Levodopa-Carbidopa Capsules-6.8

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Social Support Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Social Support includes 3 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-3.9
Placebo Gel + Levodopa-Carbidopa Capsules-0.1

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Stigma Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Stigma (e.g., social embarrassment) consists of 4 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-8.9
Placebo Gel + Levodopa-Carbidopa Capsules-4.5

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Summary Index at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. These include: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. The PDQ-39 Summary Index is the sum of all answers divided by the highest score possible (i.e. number of answers multiplied by 4) which is multiplied by 100 to put the score on a 0-100 scale. Higher scores are associated with more severe symptoms. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-10.9
Placebo Gel + Levodopa-Carbidopa Capsules-3.9

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part I Score at Week 12

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part I Score is the sum of the answers to the 4 questions that comprise Part I, each of which are measured on a 5-point scale (0-4). The Part I score ranges from 0-16 and higher scores are associated with more disability. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-0.2
Placebo Gel + Levodopa-Carbidopa Capsules-0.5

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score at Week 12

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part II score is the sum of the answers to the 13 questions that comprise Part II, each of which are measured on a 5-point scale (0-4). The Part II score ranges from 0-52 and higher scores are associated with more disability. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-1.8
Placebo Gel + Levodopa-Carbidopa Capsules1.3

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Questions 32, 33, and 34 at Week 12

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. Questions 32, 33, and 34 on UPDRS Part IV was totaled to evaluate dyskinesias. Each of these questions is measured on a 5-point scale (0-4). The Part IV dyskinesia score will range from 0-12 and higher scores are associated with more disability. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules0.4
Placebo Gel + Levodopa-Carbidopa Capsules0.8

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Total Score at Week 12

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The total score is the sum of the responses to the 31 questions (44 answers) that comprise Parts I-III of the scale. The total score will range from 0-176, with 176 representing the worst (total) disability, and 0 no disability. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-3.6
Placebo Gel + Levodopa-Carbidopa Capsules-2.1

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Employment Impairment (EMP) II Status at Week 12

The EMP instruments are designed to collect information regarding employment and ability to run a household. EMP I questions include: Are you currently in paid employment? (If yes, at which percentage have you been working during the last 4 weeks?); Have you got someone to run your household for you? (If yes, how much time per week does he/she spend in your household?); Are you retired? (If yes, for which reason?) The retirement question (from EMP I) is excluded from the EMP II instrument. (NCT00660387)
Timeframe: Week 12 (or early termination)

,
Interventionparticipants (Number)
Paid Employment (PE)=YesPE=Yes, 100% of Past 4 WeeksPE=Yes, 75% of Past 4 WeeksPE=Yes, 50% of Past 4 WeeksPE=Yes, 25% of Past 4 WeeksPE=Yes, Other % of Past 4 WeeksPE=NoSomeone Else Runs the Household (SRH)=YesSRH=Yes, 100% of Time per WeekSRH=Yes, 75% of Time per WeekSRH=Yes, 50% of Time per WeekSRH=Yes, 25% of Time per WeekSRH=Yes, Other % of Time per WeekSRH=No
LCIG + Placebo Capsules1061102252213502213
Placebo Gel + Levodopa-Carbidopa Capsules51121026241244227

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Employment Impairment (EMP) I Status at Baseline

The EMP instruments are designed to collect information regarding employment and ability to run a household. EMP I questions include: Are you currently in paid employment? (If yes, at which percentage have you been working during the last 4 weeks?); Have you got someone to run your household for you? (If yes, how much time per week does he/she spend in your household?); Are you retired? (If yes, for which reason?). (NCT00660387)
Timeframe: Baseline

,
Interventionparticipants (Number)
Paid Employment (PE)=YesPE=Yes, 100% of Past 4 WeeksPE=Yes, 75% of Past 4 WeeksPE=Yes, 50% of Past 4 WeeksPE=Yes, 25% of Past 4 WeeksPE=Yes, Other % of Past 4 WeeksPE=NoSomeone Else Runs the Household (SRH)=YesSRH=Yes, 100% of Time per WeekSRH=Yes, 75% of Time per WeekSRH=Yes, 50% of Time per WeekSRH=Yes, 25% of Time per WeekSRH=Yes, Other % of Time per WeekSRH=NoAre You Retired (R)=YesR=Yes, Old Age PensionerR=Yes, Premature Due to PDR=Yes, Premature Due to Other ConditionR=Yes, Other ReasonR=No
LCIG + Placebo Capsules1062011252415332111248131211
Placebo Gel + Levodopa-Carbidopa Capsules8312112325134512623812128

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Change From Baseline in EuroQual Quality of Life - 5 Dimensions (EQ-5D) Summary Index at Week 12

The EQ-5D is a participant answered questionnaire scoring 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. EQ-5D health states, defined by the EQ-5D descriptive system, are converted into a single summary index by applying a formula that essentially attaches values (also called QOL weights or QOL utilities) to each of the levels in each dimension. EQ-5D Summary Index values range from -0.11 to 1.00 with positive change indicating improvement. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules0.054
Placebo Gel + Levodopa-Carbidopa Capsules-0.016

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Change From Baseline in Zarit Burden Interview (ZBI) Total Score at Week 12

The ZBI is a 22-item questionnaire regarding the caregiver/subject relationship and evaluates the caregiver's health condition, psychological well-being, finances and social life. Each question is answered on a 5-point scale (0=Never, 1=Rarely, 2=Sometimes, 3=Quite frequently, and 4= Nearly always). The caregiver burden is evaluated by the total score (Range 0 to 88) obtained from the sum of the answers to the 22 questions. Higher scores are associated with a higher level of burden for the caregiver. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-2.8
Placebo Gel + Levodopa-Carbidopa Capsules1.7

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Change From Baseline in UPDRS Part III Score at Week 12

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part III score is the sum of the 27 answers provided to the 14 Part III questions, each of which are measured on a 5-point scale (0-4). The Part III score ranges from 0-108 and higher scores are associated with more disability. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-1.5
Placebo Gel + Levodopa-Carbidopa Capsules-2.9

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Clinical Global Impression - Status (CGI-S) Score at Baseline and Clinical Global Impression - Improvement (CGI-I) Score at Week 12

The CGI-S is a global assessment by the Investigator of current symptomatology and impact of illness on functioning. The ratings of the CGI-S are as follows: 1 = normal, 2 = borderline ill, 3 = mildly ill, 4 = moderately ill, 5 = markedly ill, 6 = severely ill, and 7 = among the most extremely ill. The CGI-I is a global assessment by the Investigator of the change in clinical status since the start of treatment. The CGI-I ratings are as follows: 1 = very much improved, 2 = much improved, 3 = minimally improved, 4 = no change, 5 = minimally worse, 6 = much worse, 7 = very much worse. (NCT00660387)
Timeframe: Baseline, Week 12

,
Interventionunits on a scale (Mean)
CGI-S at BaselineCGI-I at Week 12
LCIG + Placebo Capsules4.22.3
Placebo Gel + Levodopa-Carbidopa Capsules4.63.2

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Change From Baseline in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Score at Week 12

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part IV Score is the sum of the answers to the 11 questions that comprise Part IV, each of which are measured on a 5-point scale (0-4) or a 2-point scale (0 or 1). The Part IV score ranges from 0-23 and higher scores are associated with more disability. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-1.1
Placebo Gel + Levodopa-Carbidopa Capsules0.1

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Change From Baseline in EuroQol Quality of Life Scale (EQ-5D) Visual Analogue Scale (VAS) at Week 12

The EQ VAS records the participant's self-rated health on a scale from 0-100 where 100 is the 'best imaginable health state' and 0 is the 'worst imaginable health state.' (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules5.2
Placebo Gel + Levodopa-Carbidopa Capsules-6.3

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"Change From Baseline to Week 12 in Average Daily Normalized Off Time"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. Negative change from baseline for off time indicates improvement." (NCT00660387)
Timeframe: Baseline, Week 12

Interventionhours (Least Squares Mean)
LCIG + Placebo Capsules-4.04
Placebo Gel + Levodopa-Carbidopa Capsules-2.14

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"Change From Baseline in Average Daily Normalized On Time Without Troublesome Dyskinesia at Week 12"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. On time without troublesome dyskinesia (involuntary muscle movement) is defined as On time without dyskinesia and On time with non-troublesome dyskinesia. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. Positive change from Baseline for on time without troublesome dyskinesia indicates improvement." (NCT00660387)
Timeframe: Baseline, Week 12

Interventionhours (Least Squares Mean)
LCIG + Placebo Capsules4.11
Placebo Gel + Levodopa-Carbidopa Capsules2.24

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"Change From Baseline in Average Daily Normalized On Time With Troublesome Dyskinesia at Week 12"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis." (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-0.11
Placebo Gel + Levodopa-Carbidopa Capsules-0.03

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Cognition Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Cognition includes 4 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-7.3
Placebo Gel + Levodopa-Carbidopa Capsules-3.2

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Bodily Discomfort Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Bodily Discomfort includes 3 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-13.5
Placebo Gel + Levodopa-Carbidopa Capsules-10.2

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Change From Baseline in Parkinson's Disease Questionnaire (PDQ-39) Activities of Daily Living Domain Score at Week 12

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. The PDQ-39 Domain: Activities of Daily Living (e.g., difficulty cutting food) includes 6 questions, each answered on a 5-point scale. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT00660387)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
LCIG + Placebo Capsules-12.9
Placebo Gel + Levodopa-Carbidopa Capsules-1.3

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Number of Participants Who Developed Melanoma

A comprehensive assessment for the presence of melanoma was performed at least once a year by a dermatologist. (NCT00660673)
Timeframe: Once per year during the study; median duration of treatment was 1178 days.

InterventionParticipants (Count of Participants)
Levodopa-Carbidopa Intestinal Gel2

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"Change in Average Daily On Time Without Troublesome Dyskinesia Based on the Parkinson's Disease Symptom Diary at End of Treatment"

"The PD diary asks participants (or their caregivers) to indicate their status upon waking and every 30 minutes during their normal waking time according to the following categories: asleep, off, on without dyskinesia, on with non-troublesome dyskinesia, or on with troublesome dyskinesia.~On time is when medication is providing benefit with regard to mobility, slowness and stiffness. Dyskinesia is involuntary twisting, turning movements which are an effect of medication and occur during on time. Non-troublesome dyskinesia does not interfere with function or cause meaningful discomfort.~On time without troublesome dyskinesia is the sum of on time without dyskinesia and on time with non-troublesome dyskinesia. PD diary times were normalized to a 16-hour waking day and averaged for the 3 days prior to each study visit. A positive change indicates improvement.~The PD diary was implemented with Protocol amendment 4 (December 2013) for participants at US sites only." (NCT00660673)
Timeframe: Prior to initial LCIG infusion (in the previous study, before the first LCIG infusion), Baseline (final assessment of the previous open-label LCIG study), and end of treatment; median duration of treatment was 1178 days.

Interventionhours (Mean)
Change from initial LCIG infusionChange from Baseline
Levodopa-Carbidopa Intestinal Gel3.86-0.51

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"Change in Average Daily On Time With Troublesome Dyskinesia Based on the Parkinson's Disease Symptom Diary at End of Treatment"

"The PD diary asks participants (or their caregivers) to indicate their status upon waking and every 30 minutes during their normal waking time according to the following categories: asleep, off, on without dyskinesia, on with non-troublesome dyskinesia, or on with troublesome dyskinesia.~On time is when medication is providing benefit with regard to mobility, slowness and stiffness. Dyskinesia is involuntary twisting, turning movements which are an effect of medication and occur during on time. Troublesome dyskinesia interferes with function or causes meaningful discomfort.~PD diary times were normalized to a 16-hour waking day and averaged for the 3 days prior to each study visit. A positive change indicates improvement.~The PD diary was implemented with Protocol amendment 4 (December 2013) for participants at US sites only." (NCT00660673)
Timeframe: Prior to initial LCIG infusion (in the previous study, before the first LCIG infusion), Baseline (final assessment of the previous open-label LCIG study), and end of treatment; median duration of treatment was 1178 days.

Interventionhours (Mean)
Change from initial LCIG infusionChange from Baseline
Levodopa-Carbidopa Intestinal Gel0.120.70

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"Change in Average Daily Off Time Based on the Parkinson's Disease Symptom Diary at End of Treatment"

"The PD symptom diary asks participants (or their caregivers) to indicate their status upon waking and every 30 minutes during their normal waking time according to the following categories: asleep, off, on without dyskinesia, on with non-troublesome dyskinesia, or on with troublesome dyskinesia.~Off time was defined as time when medication had worn off and was no longer providing benefit with regard to mobility, slowness, and stiffness.~PD diary times were normalized to a 16-hour waking day and averaged for the 3 days prior to each study visit.~A negative change for off time indicates improvement. The PD diary assessment was implemented with Protocol amendment 4 (December 2013) for participants at United States (US) sites only." (NCT00660673)
Timeframe: Prior to initial LCIG infusion (in the previous study, before the first LCIG infusion), Baseline (final assessment of the previous open-label LCIG study), and end of treatment; median duration of treatment was 1178 days.

Interventionhours (Mean)
Change from initial LCIG infusionChange from Baseline
Levodopa-Carbidopa Intestinal Gel-3.97-0.19

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Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Score at End of Treatment

"The UPDRS is an Investigator-used rating tool to follow the longitudinal course of PD. It is made up of the following sections:~I) Mentation, Behavior, and Mood;~II) Activities of Daily Living;~III) Motor Examinations;~IV) Complications of Therapy sections (including Dyskinesias).~The UPDRS Part IV Score is the sum of all answers to the 11 questions that comprise Part IV, 4 of which are measured on a 5-point scale (0 - 4) and 7 which are measured on a 2-point scale (0 - 1). The Part IV score ranges from 0 - 23 with higher scores associated with more disability. A negative change from Baseline indicates improvement.~The UPDRS was implemented with Protocol amendment 4 (December 2013) for participants at US sites only." (NCT00660673)
Timeframe: Prior to initial LCIG infusion (in the previous study, before the first LCIG infusion), Baseline (final assessment of the previous open-label LCIG study), and end of treatment; median duration of treatment was 1178 days.

Interventionscore on a scale (Mean)
Change from initial LCIG infusionChange from Baseline
Levodopa-Carbidopa Intestinal Gel-2.270.77

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Number of Participants Receiving Concomitant Anti-Parkinson's Disease Medications by Treatment Year

"Participants could use oral levodopa-carbidopa for scheduled or supplemental bedtime/overnight doses after the pump was disconnected for the night, or as rescue medication in case of acute deterioration caused by failure of the LCIG system such as tubes and/or the pump or the onset of an acute illness.~The initiation of additional concomitant PD medication was allowed at the discretion of the Investigator if medically indicated." (NCT00660673)
Timeframe: Year 1, Year 2, Year 3, Year 4, Year 5, Year 6, Year 7, Year 8, Year 9, Year 10, > Year 10 (maximum time on treatment was approximately 11.5 years).

,,,,,,,,,,
InterventionParticipants (Count of Participants)
No concomitant PD medications (LCIG only)Concomitant oral levodopa/carbidopaOther concomitant PD medications
> Year 10810
Year 112610036
Year 101741
Year 21079132
Year 3967426
Year 4745517
Year 552377
Year 638165
Year 73392
Year 82882
Year 92151

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Number of Participants With Vitamin Levels Outside of the Normal Range

Special tests for vitamin deficiencies (folic acid, vitamin B6, vitamin B12, methylmalonic acid [MMA], and homocysteine) were implemented with Protocol Amendment 2 (27 July 2011). The number of participants with vitamin levels outside of the normal range at any time post-baseline is reported for each vitamin tested. (NCT00660673)
Timeframe: Every 6 months (beginning with implementation of Protocol Amendment 2) until final visit; median duration of treatment was 1178 days.

InterventionParticipants (Count of Participants)
Vitamin B12 < 148 pmol/LVitamin B12 > 775 pmol/LMethylmalonic acid > 0.4 µmol/LHomocysteine < 3.7 µmol/LHomocysteine > 13.9 µmol/LVitamin B6 < 20 nmol/LVitamin B6 > 125 nmol/LFolic acid < 4.5 nmol/L
Levodopa-Carbidopa Intestinal Gel22466511981551086

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Number of Participants With Treatment-emergent Adverse Events of Special Interest (TE AESI)

"Adverse events of special interest (AESIs) were identified using standardized Medical Dictionary for Regulatory Activities (MedDRA) queries (SMQ) or company MedDRA queries (CMQs). The AESI in the following categories were identified on the basis of review of the clinical program and postmarketing observations where the treatment system is commercially available.~Procedure and device associated events~Polyneuropathy, included preferred terms in either the peripheral neuropathy or GuillainBarre syndrome standardized MedDRA query (narrow search), such as polyneuropathy, decreased vibratory sense, peripheral neuropathy, peripheral sensory neuropathy, neuralgia, demyelinating polyneuropathy, and sensory disturbance~Weight loss~Cardiovascular fatalities~Respiratory tract aspiration including aspiration pneumonia/pneumonitis." (NCT00660673)
Timeframe: From first dose of LCIG in this study up to 30 days after the date of last PEG-J exposure; median duration of treatment was 1178 days, with a maximum of 4217 days (11.5 years).

InterventionParticipants (Count of Participants)
TE AESI related to procedure and deviceTE AESI related to polyneuropathyTE AESI related to weight lossTE AESI related to cardiovascular fatalitiesTE AESI related to aspiration
Levodopa-Carbidopa Intestinal Gel1622453771

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Number of Participants With Treatment-emergent Adverse Events

"Treatment-emergent adverse events (TEAEs) are defined as adverse events (AEs) which started on or after the date of the first LCIG Infusion in this study and within 30 days of the date of the last PEG-J exposure.~At least possibly drug-related is defined as TEAEs assessed as having a Possible or Probable or missing relationship to study drug.~Serious AEs included any untoward medical occurrence that:~Resulted in death~Was life-threatening~Required inpatient hospitalization or prolongation of an existing hospitalization~Resulted in persistent or significant disability/incapacity~was a congenital anomaly/birth defect~The severity of all AEs was characterized as mild, moderate or severe according to the following definitions:~Mild: usually transient and do not interfere with daily activities.~Moderate: low level of inconvenience or concern to the subject, may interfere with daily activities.~Severe: events interrupt the subject's usual daily activity." (NCT00660673)
Timeframe: From first dose of LCIG in this study up to 30 days after the date of last PEG-J exposure; median duration of treatment was 1178 days, with a maximum of 4217 days (11.5 years).

InterventionParticipants (Count of Participants)
Any treatment-emergent adverse event (TEAE)TEAE at least possibly related to study drugSerious TEAESevere TEAETEAE leading to premature study discontinuatonTEAE leading to death
Levodopa-Carbidopa Intestinal Gel2532191591528258

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Number of Participants With Sleep Attacks

"Participants were asked whether they experienced any events in which they fell asleep suddenly or unexpectedly, including while engaged in some activity (e.g., eating/drinking, speaking, or driving) or at rest, with or without any previous warning of sleepiness. If yes, participants were asked if they suffered any bad outcome or problem from the falling asleep event." (NCT00660673)
Timeframe: Baseline (final assessment period of the previous open-label LCIG study) and every 6 months until final visit; median duration of treatment was 1178 days.

InterventionParticipants (Count of Participants)
Baseline: One or more sleep attacksBaseline: One or more sleep attacks with a bad outcomePost-baseline: One or more sleep attacksPost-baseline: One or more sleep attacks with a bad outcome
Levodopa-Carbidopa Intestinal Gel60273

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Number of Participants With Potentially Clinically Significant Vital Sign Values

A vital sign value was considered potentially clinically significant if it satisfied the pre-specified criteria presented in the table and was also more extreme than the participant's corresponding Baseline value. (NCT00660673)
Timeframe: Baseline and every 6 months until final visit; median duration of treatment was 1178 days.

InterventionParticipants (Count of Participants)
Supine Systolic Blood Pressure ≥180 mmHg and > 40 mmHg increase from BaselineSupine Systolic Blood Pressure ≤ 90 mmHg and > 30 mmHg decrease from BaselineStanding Systolic Blood Pressure ≥ 180 mmHg and > 40 mmHg increase from BaselineStanding Systolic Blood Pressure ≤ 90 mmHg and > 30 mmHg decrease from BaselineOrthostatic Change in Systolic Blood Pressure Decrease of ≥ 30 mmHgSupine Diastolic Blood Pressure ≥ 105 mmHg and > 30 mmHg increase from BaselineSupine Diastolic Blood Pressure ≤ 50 mmHg and > 30 mmHg decrease from BaselineStanding Diastolic Blood Pressure ≥ 105 mmHg and > 30 mmHg increase from BaselineStanding Diastolic Blood Pressure ≤ 50 mmHg and > 30 mmHg decrease from BaselineOrthostatic Change in Diastolic Blood Pressure Decrease of ≥ 20 mmHgSupine Pulse ≥ 120 bpm and > 30 bpm increase from BaselineSupine pulse ≤ 50 bpm and > 30 bpm decrease from BaselineStanding pulse ≥ 120 bpm and > 30 bpm increase from BaselineStanding pulse ≤ 50 bpm and > 30 bpm decrease from BaselineTemperature ≥ 38.3℃ and ≥ 1.1℃ increase from BaselineWeight ≥ 7% increase from BaselineWeight ≥ 7% decrease from Baseline
Levodopa-Carbidopa Intestinal Gel6131267326714450354036140

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Number of Participants With Potentially Clinically Significant Hematology Laboratory Values

A laboratory value was considered potentially clinically significant if it satisfied the pre-specified criteria presented in the table and was also more extreme than the participant's corresponding Baseline value. (NCT00660673)
Timeframe: Baseline and every 6 months until final visit; median duration of treatment was 1178 days.

InterventionParticipants (Count of Participants)
Red blood cells (RBC) < 2.0 × 10^12 cells/L (Female); < 2.5 × 10^12 cells/L (Male)Haemoglobin < 90 g/L (Female); < 100 g/L (Male)Haematocrit < 30% (Female); < 34% (Male)White blood cells (WBC) < 2.8 × 10^9 cells/LWBC > 16.0 × 10^9 cells/LAbsolute neutrophil count < 1.2 × 10^9 cells/LLymphocytes > 80%Absolute lymphocyte count < 0.75 × 10^9 cells/LEosinophils > 10%Monocytes > 30%Platelet count < 95 × 10^9 cells/LPlatelet count > 700 × 10^9 cells/LMean corpuscular volume (MCV) < 60 fLMCV > 120 fL
Levodopa-Carbidopa Intestinal Gel0916322014412000

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Number of Participants With Potentially Clinically Significant Chemistry Laboratory Values

"A laboratory value was considered potentially clinically significant if it satisfied the pre-specified criteria presented in the table and was also more extreme than the participant's corresponding baseline value.~ULN = upper limit of normal" (NCT00660673)
Timeframe: Baseline and every 6 months until final visit; median duration of treatment was 1178 days.

InterventionParticipants (Count of Participants)
Creatinine > 177 µmol/LCalcium < 1.75 mmol/LCalcium > 3.0 mmol/LTotal bilirubin > 2 x ULNAspartate aminotransferase (AST) > 3 x ULNAlanine aminotransferase (ALT) > 3 x ULNGamma glutamyl-transferase (GGT) > 3 x ULNLactate dehydrogenase (LDH) > 3 x ULNAlkaline phosphatase (ALP) > 400 U/LCreatine phosphokinase (CPK) > 3 x ULNNon-fasting glucose < 2.78 mmol/LNon-fasting glucose > 16.0 mmol/LUric acid > 500 µmol/L (Female); > 590 µmol/L (Male)Blood urea nitrogen (BUN) > 10.8 mmol/LCholesterol > 12.9 mmol/L
Levodopa-Carbidopa Intestinal Gel0100005006410110

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Number of Participants With Intense Impulsive Behavior

To monitor for the development of intense impulsive behavior the Minnesota Impulsive Disorder Interview (MIDI) was administered. The MIDI is a semi-structured clinical interview assessing pathological gambling, trichotillomania, kleptomania, pyromania, intermittent explosive disorder, compulsive buying, and compulsive sexual behavior. (NCT00660673)
Timeframe: Baseline (final assessment of the previous open-label LCIG study) and every 6 months until final visit; median duration of treatment was 1178 days.

InterventionParticipants (Count of Participants)
Baseline: Pathological GamblingBaseline: TrichotillomaniaBaseline: KleptomaniaBaseline: PyromaniaBaseline: Intermittent Explosive DisorderBaseline: Compulsive BuyingBaseline: Compulsive Sexual BehaviorPost-baseline: Pathological GamblingPost-baseline: TrichotillomaniaPost-baseline: KleptomaniaPost-baseline: PyromaniaPost-baseline: Intermittent Explosive DisorderPost-baseline: Compulsive BuyingPost-baseline: Compulsive Sexual Behavior
Levodopa-Carbidopa Intestinal Gel100001110000214

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Number of Participants With Device Complications

Device complications include complications with the pump, intestinal tube, PEG-J or stoma. (NCT00660673)
Timeframe: From first dose of LCIG in this study up to 30 days after the date of last PEG-J exposure; median duration of treatment was 1178 days.

InterventionParticipants (Count of Participants)
Any device complicationDevice complication leading to tube replacementDevice complication with associated adverse eventDevice complication with associated adverse event leading to tube replacement
Levodopa-Carbidopa Intestinal Gel24418317743

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Number of Participants With Any Suicidal Ideation or Behavior

"The Columbia-Suicide Severity Rating Scale (C-SSRS) was implemented with Protocol Amendment 3 (20 March 2012) in order to assess suicidal behavior and ideation.~Suicidal ideation includes the wish to be dead, nonspecific active suicidal thoughts, active ideation without intent to act, active ideation with some intent to act, and active ideation with specific plan or intent. Suicidal behavior includes actual attempts, interrupted attempts, aborted attempts, completed suicide, and preparatory acts or behaviors.~The number of participants with affirmative responses on the C-SSRS at any time during the treatment period is reported." (NCT00660673)
Timeframe: Every 6 months (beginning with implementation of Protocol Amendment 3) until final visit; median duration of treatment was 1178 days.

InterventionParticipants (Count of Participants)
Any suicidal ideation or behaviorAny suicidal ideationAny suicidal behaviorNon-suicidal self-injurious behavior
Levodopa-Carbidopa Intestinal Gel323061

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Change in Unified Parkinson's Disease Rating Scale (UPDRS) Total Score at End of Treatment

"The UPDRS is an Investigator-used rating tool to follow the longitudinal course of PD. It is made up of the following sections:~I) Mentation, Behavior, and Mood;~II) Activities of Daily Living;~III) Motor Examinations;~IV) Complications of Therapy sections (including dyskinesias).~The UPDRS total score is the sum of the responses to the 31 questions (44 answers) that comprise Parts I - III of the scale. The total score ranges from 0 - 176 with 176 representing the worst (total) disability, and 0 no disability. A negative change from Baseline indicates improvement.~The UPDRS was implemented with Protocol amendment 4 (December 2013) for participants at US sites only." (NCT00660673)
Timeframe: Prior to initial LCIG infusion (in the previous study, before the first LCIG infusion), Baseline (final assessment of the previous open-label LCIG study), and end of treatment; median duration of treatment was 1178 days.

Interventionscore on a scale (Mean)
Change from initial LCIG infusionChange from Baseline
Levodopa-Carbidopa Intestinal Gel9.1216.82

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Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Dyskinesia Score at End of Treatment

"The UPDRS is an Investigator-used rating tool to follow the longitudinal course of PD. It is made up of the following sections:~I) Mentation, Behavior, and Mood; II) Activities of Daily Living; III) Motor Examinations; IV) Complications of Therapy sections (including Dyskinesias); and~The UPDRS Part IV dyskinesia Score is the sum of Questions 32 (What proportion of the waking day are dyskinesias present?), 33 (How disabling are the dyskinesias? ), and 34 (How painful are the dyskinesias?) on UPDRS Part IV, each of which are measured on a 5-point scale (0-4). The Part IV dyskinesia score ranges from 0 - 12 and higher scores are associated with more disability. A negative change from Baseline indicates improvement.~The UPDRS was implemented with Protocol amendment 4 (December 2013) for participants at US sites only." (NCT00660673)
Timeframe: Prior to initial LCIG infusion (in the previous study, before the first LCIG infusion), Baseline (final assessment of the previous open-label LCIG study), and end of treatment; median duration of treatment was 1178 days.

Interventionscore on a scale (Mean)
Change from initial LCIG infusionChange from Baseline
Levodopa-Carbidopa Intestinal Gel-0.190.55

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Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score at End of Treatment

"The UPDRS is an Investigator-used rating tool to follow the longitudinal course of PD. It is made up of the following sections:~I) Mentation, Behavior, and Mood;~II) Activities of Daily Living;~III) Motor Examinations;~IV) Complications of Therapy sections (including dyskinesias).~UPDRS Part III consists of 14 questions. Questions 20 - 26 are multi-part questions in that they are evaluated separately for multiple body parts. Counting each of these assessments leads to a total of 27 answers for Part III. The UPDRS Part III score is the sum of the 27 answers provided to the 14 Part III questions, each of which are measured on a 5-Point scale (0-4). The Part III score ranges from 0-108 and higher scores are associated with more disability. A negative change from Baseline indicates improvement.~The UPDRS was implemented with Protocol amendment 4 (December 2013) for participants at US sites only." (NCT00660673)
Timeframe: Prior to initial LCIG infusion (in the previous study, before the first LCIG infusion), Baseline (final assessment of the previous open-label LCIG study), and end of treatment; median duration of treatment was 1178 days.

Interventionscore on a scale (Mean)
Change from initial LCIG infusionChange from Baseline
Levodopa-Carbidopa Intestinal Gel4.519.18

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Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score at End of Treatment

"The UPDRS is an Investigator-used rating tool to follow the longitudinal course of PD. It is made up of the following sections:~I) Mentation, Behavior, and Mood;~II) Activities of Daily Living;~III) Motor Examinations;~IV) Complications of Therapy sections (including dyskinesias).~The Part II score is the sum of the answers to the 13 questions that comprise Part II, each of which are measured on a 5-point scale (0-4). The Part II score ranges from 0-52 and higher scores are associated with more disability. A negative change from Baseline indicates improvement.~The UPDRS was implemented with Protocol amendment 4 (December 2013) for participants at US sites only." (NCT00660673)
Timeframe: Prior to initial LCIG infusion (in the previous study, before the first LCIG infusion), Baseline (final assessment of the previous open-label LCIG study), and end of treatment; median duration of treatment was 1178 days.

Interventionscore on a scale (Mean)
Change from initial LCIG infusionChange from Baseline
Levodopa-Carbidopa Intestinal Gel3.046.11

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Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part I Score at End of Treatment

"The UPDRS is an Investigator-used rating tool to follow the longitudinal course of PD. It is made up of the following sections:~I) Mentation, Behavior, and Mood;~II) Activities of Daily Living;~III) Motor Examinations;~IV) Complications of Therapy sections (including dyskinesias).~The Part I Score is the sum of the answers to the 4 questions that comprise Part I, each of which are measured on a 5-point scale (0-4). The Part I score ranges from 0-16 and higher scores are associated with more disability. A negative change from Baseline indicates improvement.~The UPDRS was implemented with Protocol amendment 4 (December 2013) for participants at US sites only." (NCT00660673)
Timeframe: Prior to initial LCIG infusion (in the previous study, before the first LCIG infusion), Baseline (final assessment of the previous open-label LCIG study), and end of treatment; median duration of treatment was 1178 days.

Interventionscore on a scale (Mean)
Change from initial LCIG infusionChange from Baseline
Levodopa-Carbidopa Intestinal Gel1.511.46

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Change in Parkinson's Disease Questionnaire (PDQ-39) Scores at End of Treatment

"The PDQ-39 is a self-administered questionnaire that comprises 39 items addressing the following eight domains of health that patients consider to be adversely affected by the disease:~Mobility (e.g., fear of falling when walking) - 10 questions~Activities of daily living (e.g., difficulty cutting food) - 6 questions~Emotional well-being (e.g., feelings of isolation) - 6 questions~Stigma (e.g., social embarrassment) - 4 questions~Social support - 3 questions~Cognition - 4 questions~Communication - 3 questions~Bodily discomfort - 3 questions~Each question is answered on a 5-point scale from 0 (Never) to 4 (Always / Cannot Do At All). Scores are calculated by summing the answers to the questions in the domain and converting to a scale from 0 to 100. Higher scores are associated with the more severe symptoms of the disease such as tremor and stiffness. The PDQ-39 summary index (range 0-100) includes responses to all 39 items. A negative change indicates improvement." (NCT00660673)
Timeframe: Prior to initial LCIG infusion (in the previous study, before the first LCIG infusion), Baseline (final assessment of the previous open-label LCIG study), and end of treatment; median duration of treatment was 1178 days.

Interventionscore on a scale (Mean)
Summary Index: Change from initial LCIG infusionSummary Index: Change from BaselineMobility Domain: Change from initial LCIG infusionMobility Domain: Change from BaselineActivities of Daily Living Domain: Change from initial LCIG infusionActivities of Daily Living Domain: Change from BaselineEmotional Well-Being Domain: Change from initial LCIG infusionEmotional Well-Being Domain: Change from BaselineStigma Domain: Change from initial LCIG infusionStigma Domain: Change from BaselineSocial Support Domain: Change from initial LCIG infusionSocial Support Domain: Change from BaselineCognition Domain: Change from initial LCIG infusionCognition Domain: Change from BaselineCommunication Domain: Change from initial LCIG infusionCommunication Domain: Change from BaselineBodily Discomfort Domain: Change from initial LCIG infusionBodily Discomfort Domain: Change from Baseline
Levodopa-Carbidopa Intestinal Gel-1.466.83-2.0812.01-1.559.35-0.582.53-9.50-0.183.592.251.786.563.198.17-4.745.64

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Supine Plasma Renin Activity 2 Hours After the Last Dose of Placebo or Carbidopa

Blood samples were collected while resting supine for at least 30 minutes and 1 1/2 to 2 hours after breakfast. Samples were processed and sent to the Vanderbilt Clinic Laboratory for assay. (NCT00685919)
Timeframe: 2 hours after the last dose of placebo or carbidopa

InterventionNanograms per milliliter per hour (ng/mL (Mean)
Healthy Participants Who Received Placebo as Treatment A or Treatment B1.153
Healthy Participants Who Received Carbidopa as Treatment A or Treatment B1.033
Postural Tachycardia Syndrome (POTS) Participants Who Received Placebo as Treatment A or Treatment B1.544
Postural Tachycardia Syndrome (POTS) Patients Who Received Carbidopa as Treatment A or Treatment B1.878

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Systolic Blood Pressure Measured at 8 Hours After the Last Dose of Placebo or Carbidopa

Systolic blood pressure was measured once using a Dinamap non-invasive oscillometric blood pressure monitor, 2-4 hours after lunch and after at least 30 minutes of resting supine. (NCT00685919)
Timeframe: 8 hours after the last dose of placebo or carbidopa

Interventionmillimeters of mercury (mmHg) (Mean)
Healthy Participants Who Received Placebo as Treatment A or Treatment B103
Healthy Participants Who Received Carbidopa as Treatment A or Treatment B101
Postural Tachycardia Syndrome (POTS) Participants Who Received Placebo as Treatment A or Treatment B102
Postural Tachycardia Syndrome (POTS) Patients Who Received Carbidopa as Treatment A or Treatment B101

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24 Hour Urinary Catecholamine (DOPA) Excretion During Treatment Normalized to Creatinine

Urine was collected over 24 hours during treatment. The urinary volume was measured and the urine was analyzed for creatinine and catecholamines. Total amounts of creatinine and catecholamines were calculated and the results are expressed as catecholamine:creatinine. (NCT00685919)
Timeframe: Immediately before the 1st dose of Placebo or Carbidopa and ending immediately before the last dose (approximately 24 hours)

InterventionMicrograms per milligrams (ug/mg) (Mean)
Healthy Participants Who Received Placebo as Treatment A or Treatment B0.024
Healthy Participants Who Received Carbidopa as Treatment A or Treatment B0.283
Postural Tachycardia Syndrome (POTS) Participants Who Received Placebo as Treatment A or Treatment B0.026
Postural Tachycardia Syndrome (POTS) Patients Who Received Carbidopa as Treatment A or Treatment B0.385

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24 Hour Urinary Catecholamine (Dopamine) Excretion During Treatment Normalized to Creatinine

Urine was collected over 24 hours during treatment. The urinary volume was measured and the urine was analyzed for creatinine and catecholamines. Total amounts of creatinine and catecholamines were calculated and the results are expressed as catecholamine:creatinine. (NCT00685919)
Timeframe: Immediately before the 1st dose of Placebo or Carbidopa and ending immediately before the last dose (approximately 24 hours)

InterventionMicrograms per milligrams (ug/mg) (Mean)
Healthy Participants Who Received Placebo as Treatment A or Treatment B0.208
Healthy Participants Who Received Carbidopa as Treatment A or Treatment B0.035
Postural Tachycardia Syndrome (POTS) Participants Who Received Placebo as Treatment A or Treatment B0.24
Postural Tachycardia Syndrome (POTS) Patients Who Received Carbidopa as Treatment A or Treatment B0.038

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24 Hour Urinary Sodium Excretion During Treatment Normalized to Creatinine

Urine was collected for 24hr during treatment. Urinary volume was measured and the urine was analyzed for sodium and creatinine concentrations. Total amounts of sodium and creatinine excreted over the 24 hr were calculated and results expressed as ratio of sodium:creatinine. (NCT00685919)
Timeframe: Immediately before the 1st dose of placebo or carbidopa to immediately before the 5th dose (approximately 24 hours)

InterventionMilliequivalents per gram (mEq/g) (Mean)
Healthy Participants Who Received Placebo as Treatment A or Treatment B140
Healthy Participants Who Received Carbidopa as Treatment A or Treatment B132
Postural Tachycardia Syndrome (POTS) Participants Who Received Placebo as Treatment A or Treatment B137
Postural Tachycardia Syndrome (POTS) Patients Who Received Carbidopa as Treatment A or Treatment B154

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Plasma Catecholamines (DOPA) After the Last Dose of Placebo or Carbidopa

Blood samples were collected while resting supine for at least 30 minutes and 2 to 4 hours after lunch. For catecholamine measurements, blood was collected in chilled vacuum tubes with EDTA. Plasma was separated and stored with added reduced glutathione (Amersham International PLC) at -70°C until the assay. Plasma catecholamines were measured by a method that involves batch alumina extraction followed by high-performance liquid chromatography (HPLC) for separation with electrochemical detection and quantification. (NCT00685919)
Timeframe: 8 hours after the last dose of placebo or carbidopa

InterventionPicograms per milliliter (pg/mL) (Mean)
Healthy Participants Who Received Placebo as Treatment A or Treatment B1813
Healthy Participants Who Received Carbidopa as Treatment A or Treatment B20297
Postural Tachycardia Syndrome (POTS) Participants Who Received Placebo as Treatment A or Treatment B2104
Postural Tachycardia Syndrome (POTS) Patients Who Received Carbidopa as Treatment A or Treatment B25680

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Plasma Catecholamines (Norepinephrine) After the Last Dose of Placebo or Carbidopa

Blood samples were collected while resting supine for at least 30 minutes and 2 to 4 hours after lunch. For catecholamine measurements, blood was collected in chilled vacuum tubes with EDTA. Plasma was separated and stored with added reduced glutathione (Amersham International PLC) at -70°C until the assay. Plasma catecholamines were measured by a method that involves batch alumina extraction followed by high-performance liquid chromatography (HPLC) for separation with electrochemical detection and quantification. (NCT00685919)
Timeframe: 8 hours after the last dose of placebo or carbidopa

InterventionPicograms per milliliter (pg/mL) (Mean)
Healthy Participants Who Received Placebo as Treatment A or Treatment B150
Healthy Participants Who Received Carbidopa as Treatment A or Treatment B181
Postural Tachycardia Syndrome (POTS) Participants Who Received Placebo as Treatment A or Treatment B278
Postural Tachycardia Syndrome (POTS) Patients Who Received Carbidopa as Treatment A or Treatment B245

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Plasma Sodium After the Last Dose of Placebo or Carbidopa

Blood samples were collected while resting supine for at least 30 minutes and 2 to 4 hours after lunch. Samples were processed and sent to the Vanderbilt Clinical Laboratory for assay. (NCT00685919)
Timeframe: 8 hours after the last dose of placebo or carbidopa

InterventionMilliequivalents per liter (mEq/L) (Mean)
Healthy Participants Who Received Placebo as Treatment A or Treatment B138
Healthy Participants Who Received Carbidopa as Treatment A or Treatment B138
Postural Tachycardia Syndrome (POTS) Participants Who Received Placebo as Treatment A or Treatment B139
Postural Tachycardia Syndrome (POTS) Patients Who Received Carbidopa as Treatment A or Treatment B138

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Aim 1: Mean Parameter Estimate for Maximal Motor Evoked Potential (MEPmax) Derived From Stimulus Response Curves (SRC)

Motor evoked potential (MEP) amplitudes were measured prior to treatment (baseline), immediately after the treatment (post-training 1), 30 minutes after the treatment (post-training 2), and 60 minutes after the treatment (post-training 3).The MEP is elicited by transcranial magnetic stimulation (TMS) at increased intensity. Its amplitude is measured from peak to peak and expressed in millivolts (mV). Measured MEP amplitudes were plotted against the intensity to create a stimulus response curve (SRC). SRCs were modeled by a 3- parameter sigmoid function and MEPmax was extracted. Long-lasting increases in MEP amplitude indicate increases in motor cortex excitability and are associated with motor learning. (NCT00715520)
Timeframe: Baseline, Post-Training 1 (Immediately), Post-Training 2 (30 Minutes), Post-Training 3 (60 Minutes)

InterventionmV (Mean)
Baseline Placebo - MEPmaxPost-Training 1 Placebo - MEPmaxPost-Training 2 Placebo - MEPmaxBaseline - Amphetamine Sulfate - MEPmaxPost-Training 1 Ampletamine Sulfate - MEPmaxPost-Training 2 Amphetamine Sulfate - MEPmaxBaseline Methylphenidate - MEPmaxPost-Training 1 Methylphenidate - MEPmaxPost-Training 2 Methylphenidate - MEPmaxBaseline Carbidopa-Levodopa - MEPmaxPost-Training 1 Carbidopa-Levodopa - MEPmaxPost-Training 2 Carbidopa-Levodopa - MEPmax
Aim 11.011.631.29.731.221.081.041.101.221.811.411.53

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Aim 1: Mean Peak Acceleration of Wrist Extension Movements

Mean peak acceleration was measured across study drug conditions prior to treatment (baseline), immediately after the treatment (post-training 1), 30 minutes after the treatment (post-training 2) and 60 minutes after the treatment (post-training 3). Increases in the mean peak acceleration of the trained wrist extension movements indicate motor learning. Acceleration was measured in g; a symbol for the average acceleration produced by gravity at the Earth's surface. (NCT00715520)
Timeframe: Baseline, Post-Training 1 (Immediately), Post-Training 2 (30 Minutes), Post-Training 3 (60 Minutes)

Interventiong (Mean)
Baseline - PlaceboPost-Training 1 - PlaceboPost-Training 2 - PlaceboBaseline - Amphetamine SulfatePost-Training 1 - Amphetamine SulfatePost-Training 2 - Amphetamine SulfateBaseline - MethylphenidatePost-Training 1 - MethylphenidatePost-Training 2 - MethylphenidateBaseline - Carbidopa-LevodopaPost-Training 1 - Carbidopa-LevodopaPost-Training 2 - Carbidopa-Levodopa
Aim 11.321.331.241.241.281.291.351.271.221.221.231.37

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Aim 2: Mean Peak Acceleration for rTMS Treatment With Respect to Frequency

Mean peak acceleration for the different frequencies of rTMS treatment (placebo, 0.1 Hz, 0.25 Hz, 0.5 Hz) prior to treatment (baseline), immediately after the treatment (post-training 1), 30 minutes after the treatment (post-training 2) and 60 minutes after the treatment (post-training 3). Increases in the mean peak acceleration of the trained wrist extension movements indicate motor learning. Acceleration was measured in g; a symbol for the average acceleration produced by gravity at the Earth's surface. (NCT00715520)
Timeframe: Baseline, Post-Training 1(Immediately), Post-Training 2 (30 Minutes), Post-Training 3 (60 Minutes)

Interventiong (Mean)
Baseline - PlaceboPost-Training 1 - PlaceboPost-Training 2 - PlaceboPost-Training 3 - PlaceboBaseline - .1 HzPost-Training 1 - .1 HzPost-Training 2 - .1 HzPost-Training 3 - .1 HzBaseline - .25 HzPost-Training 1 - .25 HzPost-Training 2 - .25 HzPost-Training 3 - .25 HzBaseline - .5 HzPost-Training 1 - .5 HzPost-Training 2 - .5 HzPost-Training 3 - .5 Hz
Aim 21.441.361.351.331.331.431.501.531.381.351.401.341.321.291.251.29

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Aim 2: Mean Peak Acceleration of Wrist Extension Movements With Respect to Pulse

Mean peak acceleration of wrist movements for repeated TMS (rTMS) conditions with respect of the TMS pulse (-100, +300, placebo, zero) prior to treatment (baseline), immediately after the treatment (post-training 1), 30 minutes after the treatment (post-training 2) and 60 minutes after the treatment (post-training 3). Increases in the mean peak acceleration of the trained wrist extension movements indicate motor learning. Acceleration was measured in g; a symbol for the average acceleration produced by gravity at the Earth's surface. (NCT00715520)
Timeframe: Baseline, Post-Training 1(Immediately), Post-Training 2 (30 Minutes), Post-Training 3 (60 Minutes)

Interventiong (Mean)
Baseline - Pulse (zero)Post-Training 1 - Pulse (zero)Post-Training 2 - Pulse (zero)Post-Training 3 - Pulse (zero)Baseline - Pulse (placebo)Post-Training 1 - Pulse (placebo)Post-Training 2 - Pulse (placebo)Post-Training 3 - Pulse (placebo)Baseline - Pulse (-100)Post-Training 1 - Pulse (-100)Post-Training 2 - Pulse (-100)Post-Training 3 - Pulse (-100)Baseline - Pulse (+300)Post-Training 1 - Pulse (+300)Post-Training 2 - Pulse (+300)Post-Training 3 - Pulse (+300)
Aim 21.331.431.511.531.441.361.351.331.511.51.461.471.401.321.381.40

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Aim 2: Mean Sum of Normalized Motor Evoked Potentials (MEPs) for rTMS Treatment With Respect to Frequency

Mean sum of normalized MEP for the different frequencies of rTMS treatment (placebo at 0.1 Hz, 0.1 Hz, 0.25 Hz, 0.5 Hz) prior to treatment (baseline), immediately after the treatment (post-training 1), 30 minutes after the treatment (post-training 2) and 60 minutes after the treatment (post-training 3). Increases in the mean peak acceleration of the trained wrist extension movements indicate motor learning. (NCT00715520)
Timeframe: Baseline, Post-Training 1(Immediately), Post-Training 2 (30 Minutes), Post-Training 3 (60 Minutes)

Interventionmillivolts (Mean)
Baseline - PlaceboPost-Training 1 - PlaceboPost-Training 2 - PlaceboPost-Training 3 - PlaceboBaseline - .1 HzPost-Training 1 - .1 HzPost-Training 2 - .1 HzPost-Training 3 - .1 HzBaseline - .25 HzPost-Training 1 - .25 HzPost-Training 2 - .25 HzPost-Training 3 - .25 HzBaseline - .5 HzPost-Training 1 - .5 HzPost-Training 2 - .5 HzPost-Training 3 - .5 Hz
Aim 2.67.93.941.02.711.061.061.14.67.90.90.98.64.92.90.84

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Aim 2: Mean Sum of Normalized Motor Evoked Potentials (MEPs) With Respect to Pulse

Mean sum of normalized MEP for repeated TMS (rTMS) conditions with respect to the pulse (-100, +300, placebo, zero) prior to treatment (baseline), immediately after the treatment (post-training 1), 30 minutes after the treatment (post-training 2) and 60 minutes after the treatment (post-training 3). Its amplitude is measured from peak to peak and expressed in mV. Long- lasting increases in MEP amplitude indicate increases in motor cortex excitability and are associated with motor learning. (NCT00715520)
Timeframe: Baseline, Post-Training 1(Immediately), Post-Training 2 (30 Minutes), Post-Training 3 (60 Minutes)

Interventionmillivolts (Mean)
Baseline - Pulse (zero)Post-Training 1 - Pulse (zero)Post-Training 2 - Pulse (zero)Post-Training 3 - Pulse (zero)Baseline - Pulse (placebo)Post-Training 1 - Pulse (placebo)Post-Training 2 - Pulse (placebo)Post-Training 3 - Pulse (placebo)Baseline - Pulse (-100)Post-Training 1 - Pulse (-100)Post-Training 2 - Pulse (-100)Post-Training 3 - Pulse (-100)Baseline - Pulse (+300)Post-Training 1 - Pulse (+300)Post-Training 2 - Pulse (+300)Post-Training 3 - Pulse (+300)
Aim 2.39.66.63.69.40.54.51.52.39.56.60.61.38.54.48.51

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Mean Amblyopic Eye Visual Acuity Letter Scores at 9 Weeks After Starting Levodopa

Visual acuity was measured with the electronic early treatment diabetic retinopathy study (E-ETDRS) method and resulted in a letter score that could range from 0 to 97 letters, with 0 being the worst and 97 being the best. (NCT00789672)
Timeframe: 9 weeks after starting levodopa

Interventionletters (Mean)
Lower Dose 0.51 mg Levodopa/Carbidopa59.9
Higher Dose 0.76 mg Levodopa/Carbidopa56.5

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Mean Amblyopic Eye Visual Acuity Letter Scores at 4 Weeks Post Enrollment

Visual acuity was measured with the electronic early treatment diabetic retinopathy study (E-ETDRS) method and resulted in a letter score that could range from 0 to 97 letters, with 0 being the worst and 97 the best. (NCT00789672)
Timeframe: 4 weeks after enrollment

Interventionletters (Mean)
Lower Dose 0.51 mg Levodopa/Carbidopa59.1
Higher Dose 0.76 mg Levodopa/Carbidopa54.3

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Mean Amblyopic Eye Visual Acuity Letter Scores at 10 Weeks After Stopping Levodopa

Visual acuity was measured with the electronic early treatment diabetic retinopathy study (E-ETDRS) method and resulted in a letter score that could range from 0 to 97 letters, with 0 being the worst and 97 the best. (NCT00789672)
Timeframe: 10 weeks after stopping levodopa

Interventionletters (Mean)
Lower Dose 0.51 mg Levodopa/Carbidopa60.6
Higher Dose 0.76 mg Levodopa/Carbidopa53.9

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Distribution of Amblyopic Eye Visual Acuity Letter Scores at 4 Weeks After Enrollment

Visual acuity was measured with the electronic early treatment diabetic retinopathy study (E-ETDRS) method and resulted in a letter score that could range from 0 to 97 letters, with 0 being the worst and 97 the best. Letter scores are presented as Snellen Equivalents for presentation (i.e. 20/20 includes those with letter scores between 83 and 87 letters, 20/25 includes those with letter scores between 78 to 82 letters, etc.). (NCT00789672)
Timeframe: 4 weeks after enrollment

,
Interventionparticipants (Number)
<20/100 (<47 letters)20/100 (47 to 52 letters)20/80 (53 to 57)20/63 (58 to 62)20/50 (63 to 67)20/40 (68-72 letters)20/32 (73 to 77 letters)
Higher Dose 0.76 mg Levodopa/Carbidopa4135310
Lower Dose 0.51 mg Levodopa/Carbidopa2214430

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Distribution of Amblyopic Eye Visual Acuity Letter Scores at 9 Weeks After Starting Levodopa

Visual acuity was measured with the electronic early treatment diabetic retinopathy study (E-ETDRS) method and resulted in a letter score that could range from 0 to 97 letters, with 0 being the worst and 97 being the best. Letter scores are presented as Snellen Equivalents for presentation (i.e. 20/20 includes those with letter scores between 83 and 87 letters, 20/25 includes those with letter scores between 78 to 82 letters, etc.). (NCT00789672)
Timeframe: 9 weeks after starting levodopa

,
Interventionparticipants (Number)
<20/100 (<47 letters)20/100 (47 to 52 letters)20/80 (53 to 57)20/63 (58 to 62)20/50 (63 to 67)20/40 (68-72 letters)20/32 (73 to 77 letters)
Higher Dose 0.76 mg Levodopa/Carbidopa5015321
Lower Dose 0.51 mg Levodopa/Carbidopa2213431

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Distribution of Amblyopic Eye Visual Acuity Letter Scores at 10 Weeks After Stopping Levodopa

Visual acuity was measured with the electronic early treatment diabetic retinopathy study (E-ETDRS) method and resulted in a letter score that could range from 0 to 97 letters, with 0 being the worst and 97 the best. Letter scores are presented as Snellen Equivalents for presentation (i.e. 20/20 includes those with letter scores between 83 and 87 letters, 20/25 includes those with letter scores between 78 to 82 letters, etc.). (NCT00789672)
Timeframe: 10 weeks after stopping levodopa

,
Interventionparticipants (Number)
<20/100 (<47 letters)20/100 (47 to 52 letters)20/80 (53 to 57)20/63 (58 to 62)20/50 (63 to 67)20/40 (68-72 letters)20/32 (73 to 77 letters)
Higher Dose 0.76 mg Levodopa/Carbidopa5123600
Lower Dose 0.51 mg Levodopa/Carbidopa2034213

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Mean Change in Amblyopic Eye Visual Acuity Letter Scores at 4 Weeks Post Enrollment

Visual acuity was measured with the electronic early treatment diabetic retinopathy study (E-ETDRS) method and resulted in a letter score that could range from 0 to 97 letters, with 0 being the worst and 97 the best. A difference was calculated as the difference in letters between baseline and outcome with positive difference indicating improvement in acuity. (NCT00789672)
Timeframe: enrollment to 4 weeks

Interventionletters (Mean)
Lower Dose 0.51 mg Levodopa/Carbidopa2.9
Higher Dose 0.76 mg Levodopa/Carbidopa3.8

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Mean Change in Amblyopic Eye Visual Acuity Letter Scores at 10 Weeks After Stopping Levodopa

Visual acuity was measured with the electronic early treatment diabetic retinopathy study (E-ETDRS) method and resulted in a letter score that could range from 0 to 97 letters, with 0 being the worst and 97 the best. A difference was calculated as the difference in letters between baseline and outcome with positive difference indicating improvement in acuity. (NCT00789672)
Timeframe: baseline to 10 weeks after stopping levodopa

Interventionletters (Mean)
Lower Dose 0.51 mg Levodopa/Carbidopa4.9
Higher Dose 0.76 mg Levodopa/Carbidopa3.5

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Distribution of Change in Amblyopic Eye Visual Acuity Scores at 10 Weeks After Stopping Levodopa

Visual acuity was measured with the electronic early treatment diabetic retinopathy study (E-ETDRS) method and resulted in a letter score that could range from 0 to 97 letters. A difference was calculated as the difference in letters between baseline and outcome with positive difference indicating improvement in acuity. (NCT00789672)
Timeframe: baseline to 10 weeks after stopping levodopa

,
Interventionparticipants (Number)
>=15 letters worse10 to 14 letters worse5 to 9 letters worseWithin plus or minus 4 letters5 to 9 letters better10 to 14 letters better>=15 letters better
Higher Dose 0.76 mg Levodopa/Carbidopa0018710
Lower Dose 0.51 mg Levodopa/Carbidopa0007620

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Distribution of Change in Amblyopic Eye Visual Acuity Scores at 4 Weeks Post Enrollment

Visual acuity was measured with the electronic early treatment diabetic retinopathy study (E-ETDRS) method and resulted in a letter score that could range from 0 to 97 letters, with 0 being the worst and 97 the best. A difference was calculated as the difference in letters between baseline and outcome with positive difference indicating improvement in acuity. (NCT00789672)
Timeframe: enrollment to 4 weeks

,
Interventionparticipants (Number)
>=15 letters worse10 to 14 letters worse5 to 9 letters worseWithin plus or minus 4 letters5 to 9 letters better10 to 14 letters better>=15 letters better
Higher Dose 0.76 mg Levodopa/Carbidopa0009710
Lower Dose 0.51 mg Levodopa/Carbidopa00011500

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Distribution of Change in Amblyopic Eye Visual Acuity Scores at 9 Weeks After Starting Levodopa

Visual acuity was measured with the electronic early treatment diabetic retinopathy study (E-ETDRS) method and resulted in a letter score that could range from 0 to 97 letters, with 0 being the worst and 97 the best. A difference was calculated as the difference in letters between baseline and outcome with positive difference indicating improvement in acuity. (NCT00789672)
Timeframe: baseline to 9 weeks

,
Interventionparticipants (Number)
>=15 letters worse10 to 14 letters worse5 to 9 letters worseWithin plus or minus 4 letters5 to 9 letters better10 to 14 letters better>=15 letters better
Higher Dose 0.76 mg Levodopa/Carbidopa0015641
Lower Dose 0.51 mg Levodopa/Carbidopa0009520

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Tolerability of Study Medication-Adverse Event Reporting

Number of adverse events reported throughout entire study. (NCT00789672)
Timeframe: 24 weeks

,
Interventionevents (Number)
HeadacheCold/Upper Respiratory Infection/CoughRashFluNausea/VomitingFatigue/SleepinessDizziness/light-headednessConjunctivitisMuscle painStomach acheEar acheFeverLoss of appetiteNightmareKnee injurySinus infectionWeight lossConstipationFinger injuryPulled muscle
Higher Dose 0.76 mg Levodopa/Carbidopa66311102220000000011
Lower Dose 0.51 mg Levodopa/Carbidopa63122330001121111100

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Mean Change in Amblyopic Eye Visual Acuity Letter Scores at 9 Weeks After Starting Levodopa

Visual acuity was measured with the electronic early treatment diabetic retinopathy study (E-ETDRS) method and resulted in a letter score that could range from 0 to 97 letters, with 0 being the worst and 97 the best. A difference was calculated as the difference in letters between baseline and outcome with positive difference indicating improvement in acuity. (NCT00789672)
Timeframe: baseline to 9 weeks

Interventionletters (Mean)
Lower Dose 0.51 mg Levodopa/Carbidopa3.8
Higher Dose 0.76 mg Levodopa/Carbidopa6.1

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Maximum Dose of Levodopa/Carbidopa That Can be Tolerated (Without Any Dose Limiting Toxicity) by at Least 3 Subjects.

(NCT00829439)
Timeframe: 1 week

Interventionmg/kg/day (Number)
Levodopa/Carbidopa15

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Mean Peak Walking Speed

Walking speed assessment began with the participant being seated in an armless chair. Then while being timed, the participant stood up with their arms crossed on their chest and walked 6 meters, turned around, returned to the chair and sat. Timing was stopped when the participant's buttocks hit the chair and the total time was recorded. If the participant could not arise in 60 seconds, 60 seconds was entered in this line of the report form and the participant was tested again but allowed to push off to get out of the chair. Sixty seconds was the maximum time allowed to complete the walking assessment, thus 60 seconds was recorded as the time if they could not complete the task within this time limit. Walking speed was assessed at Hours 0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7.0 and 8. The peak walking speed was recorded for each participant regardless of what timepoint the score was achieved. The mean peak walking speed was calculated using the individual peak values. (NCT00845000)
Timeframe: Hours 0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 7.0 and 8.0 of each treatment period

InterventionSeconds (Mean)
SCH 420814 10 mg16.64
SCH 420814 100 mg14.45
Placebo20.00

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Mean Peak Dyskinesia Score

Dyskinesia was scored on a scale of 0 (absent), 1 (mild) , 2 (moderate), 3 (severe) and 4 (incapacitating) for seven body parts (face, neck, trunk, each arm and each leg) based on the worse dyskinesia noted during the entire measurement time. Scores were assessed at Hours 0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 7.0 and 8.0. The dyskinesia score was the sum of the scores for the seven body parts. The peak dyskinesia score was recorded for each participant regardless of what timepoint the score was achieved. The total possible score for an individual at each timepoint could range from 0 to 28 with higher scores indicating greater effects of the dyskinesia. The mean peak dyskinesia score was calculated using the individual peak values. (NCT00845000)
Timeframe: Hours 0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 7.0 and 8.0 of each treatment period

InterventionScore on a scale (Mean)
SCH 420814 10 mg11.00
SCH 420814 100 mg11.42
Placebo8.50

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Mean Peak Finger Tapping Score

Tapping was measured with two manual counters with keys that were depressed to register a count. The participant alternately tapped each counter using the index finger of the more affected hand for 60 seconds and was not allowed to use more than one finger to tap. The participant was instructed to tap as rapidly as possible while being timed for 60 seconds. The counts were recorded for the two counters at Hours 0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 7.0 and 8.0. The peak tapping score was recorded for each participant regardless of what timepoint the score was achieved. The mean peak finger tapping score was calculated using the individual peak values. (NCT00845000)
Timeframe: Hours 0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 7.0 and 8.0 of each treatment period

Interventiontaps per 60 seconds (Mean)
SCH 420814 10 mg44.33
SCH 420814 100 mg41.58
Placebo45.75

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Mean Peak Tremor Score

Tremor was scored on a scale of 0 (absent), 1 (mild, 2 (moderate), 3 (severe) and 4 (incapacitating) for seven body parts (face, neck, trunk, each arm and each leg) based on the worse tremor observed during the time spent with participant while taking other study measurements(vital signs, drawing samples, performing the tapping and walking tasks). Scores were assessed at Hours 0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 7.0 and 8.0. The tremor score was the sum of scores for seven body parts. The peak tremor score was recorded for each participant regardless of what timepoint the score was achieved. The total possible score for an individual at each timepoint could range from 0 to 28 with higher scores indicating more effects of the tremors. The mean peak tremor score was calculated using the individual peak values. (NCT00845000)
Timeframe: Hours 0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 7.0 and 8.0 of each treatment period

InterventionScore on a scale (Mean)
SCH 420814 10 mg3.5
SCH 420814 100 mg3.33
Placebo4.42

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Result Summary of Day 1 Dyskinesia Evaluated by Investigator Assessment for Each Treatment Period

"To determine 8h efficacy on Day 1 the on site investigator assessments of ON, OFF and state of dyskinesia for each subject was collected predose (-1, -0.5, and 0 hours) every 30 min for up to 8 hours after dosing . For all subjects duration of (1) OFF time (2) ON time without dyskinesia, (3) ON time with non-troublesome dyskinesia and (4) ON time with troublesome dyskinesia was calculated for both treatments. Definition of ON was based on a 20% change from predose measure, and the results were analyzed in the standard manner of a two way crossover design. The trial inclusion criteria included ability of subject to differentiate ON state from OFF state per investigator's assessment." (NCT00869791)
Timeframe: Predose and then every 30 min upto 8 h after dosing on Day of 1 of each treatment period

,
InterventionHours (Mean)
OFF timeON time without dyskinesiaON time with non-troublesome dyskinesiaON time with troublesome dyskinesia
IPX0661.902.942.620.54
IR CD-LD4.442.360.900.28

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Pharmacokinetics Measurements to Determine Tmax for Levodopa and Carbidopa Plasma Concentrations From Samples Collected Pre-dose and at Different Time Points on Day 1 and Day 8 of Periods 1 and 2 of Both Treatment Arms.

For both treatment arms: Sequence 1 (IPX066, Washout, then IR CD-LD) and Sequence 2 (IR CD-LD, Washout, IPX066), blood samples for measurement of LD and CD plasma concentrations were collected pre-dose and at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, and 8 hours after dosing on Day 1 (referred to as Single-Dose data); and at pre-dose, 0.5, 1,1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 hours after dosing on Day 8 (referred to as Multiple-Dose data). Time of maximum drug concentration (Tmax in hours) was estimated using Single-Dose data and Multiple-Dose data. (NCT00869791)
Timeframe: Day 1 and on Day 8 after a week of intervention in each treatment arm: Arm 1 (IPX066 first, washout, then CD-LD IR) and Arm2 (CD-LD IR first, washout, then IPX066

,
InterventionHours (Mean)
CD Tmax Single-DoseCD Tmax Multiple-DoseLD Tmax Single-DoseLD Tmax Multiple-Dose
IPX0662.9443.8152.0374.407
IR CD-LD2.2965.6850.8703.611

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Pharmacokinetics Measurements to Determine Cmax for Carbidopa (CD) and Levodopa (LD) Plasma Concentrations From Samples Collected Pre-dose and at Different Time Points on Day 1 and Day 8 of Periods 1 and 2 of Both Treatment Arms.

For both treatment arms: Sequence 1 (IPX066, Washout, then IR CD-LD) and Sequence 2 (IR CD-LD, Washout, IPX066), blood samples for measurement of LD and CD plasma concentrations were collected pre-dose and at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, and 8 hours after dosing on Day 1 (referred to as Single-Dose data); and at pre-dose, 0.5, 1,1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 hours after dosing on Day 8 (referred to as Multiple-Dose data). Maximum (peak) drug concentration (Cmax in nanograms/milliliter) was estimated using Single-Dose data and Multiple-Dose data. (NCT00869791)
Timeframe: Day 1 and on Day 8 after a week of intervention in each treatment arm: Arm 1 (IPX066 first, washout, then CD-LD IR) and Arm 2 (CD-LD IR first, washout, then IPX066)

,
Interventionnanogram/milliliter (Mean)
CD Cmax, Single-DoseCD Cmax, Multiple-DoseLD Cmax, Single-DoseLD Cmax, Multiple-Dose
IPX066238.852313.2223000.0003807.037
IR CD-LD146.848167.5152356.4442761.852

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Pharmacokinetics Measurements to Determine Area Under the Concentration-time Curve for the Dosing Interval for LD and CD Concentrations From Blood Collected Pre-dose and at Different Time Points on Day 1 and Day 8 of Periods 1 and 2 of Treatment Arms.

For both treatment arms: Sequence 1 (IPX066, Washout, then IR CD-LD) and Sequence 2 (IR CD-LD, Washout, IPX066), blood samples for measurement of LD and CD plasma concentrations were collected pre-dose and at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, and 8 hours after dosing on Day 1 (referred to as Single-Dose data); and at pre-dose, 0.5, 1,1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12 hours after dosing on Day 8 (referred to as Multiple-Dose data). Area under the concentration-time curve for the dosing interval (AUC Tau) in hour*nanogram/milliliter was estimated using Single-Dose data and Multiple-Dose data. (NCT00869791)
Timeframe: Day 1 and on Day 8 after a week of intervention in each treatment arm: Arm 1 (IPX066 first, washout, then CD-LD IR) and Arm2 (CD-LD IR first, washout, then IPX066

,
Interventionhour*nanogram/milliliter (Mean)
CD AUC Tau, Single-DoseCD AUC Tau, Multiple-DoseLD AUC Tau, Single-DoseLD AUC Tau, Multiple-Dose
IPX066917.0671344.43610902.19413903.380
IR CD-LD401.694449.5843881.2984167.151

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"Off Time Hours Reported by Subjects Using Parkinson's Patient Diary"

"Subjects recorded state of OFF time using the Parkinson's Patient Diary" (NCT00869791)
Timeframe: Last 3 days of each treatment period, every 30 minutes over a 24-hour day beginning at 6:00 AM

Interventionhours (Mean)
IPX0663.83
IR CD-LD5.83

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8-Hour Efficacy Using Day 1 Unified Parkinson's Disease Rating Scale Part III Score

To determine efficacy on Day 1 the UPDRS (unified Parkinson's disease rating) Part III score, a clinician-scored measure of motor function, was collected immediately predose and 1, 2, 3, 4, 5, 6, 7 and 8 h post dose. The UPDRS Part III motor exam analyzes multiple motor functions like speech, facial expression, tremor, rigidity, movement, posture, gait etc. Each parameter is assigned values from 0 to 4, with 0 being normal and 4 being the most affected. The total range is 0 - 108, with lower scores indicating a better outcome.The average of post dose was calculated for day 1. (NCT00869791)
Timeframe: Pre dosing and at hourly intervals through the 8-hour measurement period on day 1

InterventionUPDRS Part III Motor Score (Mean)
IPX06621.6
IR CD-LD25.5

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8-Hour Efficacy Using Day 1 Tapping

"Improvement in Tapping: has been used as a surrogate endpoint for assessing subject being On. Finger Tapping: the number of times the subject could tap two counter keys 20 cm apart alternately in 1 minute with the most affected arm assessed every 30 minutes on Day 1. Subjects performed the 60-second tapping measurement three times prior to dosing in the clinic, and at half-hour intervals through the 8-hour measurement period on Day 1 of each treatment period. More hours On during treatment represented better outcome. For the Tapping measurement, the protocol defined a 20% change from the average of the predose measurements as the time to On. Each half-hour interval counted as 0.5 hour. Any measurement below a 20% improvement was considered time Not On. If patient required redosing then primary analyses adjusted for redosing in calculating the results." (NCT00869791)
Timeframe: Day 1 of each treatment period - three times prior to dosing in the clinic, and at half-hour intervals through the 8-hour measurement period

InterventionHours (Mean)
IPX0664.74
IR CD-LD2.98

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Change From Baseline in the Sum of UPDRS Part II + UPDRS Part III at Week 30

"Analysis of the Change from Baseline in the sum of the Unified Parkinson's Disease Rating Scale (UPDRS) Part II (Activities of Daily Living) + UPDRS Part III (Motor Examination) at Week 30 (End of Study).~Unified Parkinson's Disease Rating Scale (UPDRS) - Four Parts Higher score values represent a worse outcome.~Subscales II and III were summed:~Part I: Mentation, Behavior and Mood - 4 questions 1-4 Score range: 1-16 Part II: Activities of Daily Living - 13 questions 5-17 Score range: 0-52 Part III: Motor Examination - 19 questions 18-31 and 25 total assessments Score range: 0-100 Part IV: Complications of Therapy (In the past week) - 11 questions Score range: 0-25" (NCT00880620)
Timeframe: Week 30

Interventionunits on a scale (Mean)
Placebo-0.6
IPX066 145mg LD-11.7
IPX066 245 mg LD-12.9
IPX066 390 mg LD-14.9

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Summary of Change From Baseline to End of Study in Mean Parkinson's Disease Questionnaire-39 (PDQ-39) Score

"Change from Baseline in Parkinson's disease Questionnaire 39 (PDQ-39) at Weeks 4, 9, 16, 23 and 30 or early discontinuation was collected. The PDQ-39 is a self-reported questionnaire consisting of 39 questions regarding the subjects mobility and the responses consist of Never (better in outcome), (value 0), Occasionally (value 1), Sometimes (value 2), , Often (value 3), and Always (value 4), (worse in outcome). The minimum possible score is 0 and the maximum is 156. The outcome measure calculated was the change from baseline to end of study in mean PDQ-39 score. Negative values indicate a better result." (NCT00880620)
Timeframe: Baseline and Week 30 (or End of Study)

Interventionscore on a scale (Mean)
IPX066 145 mg LD-4.4
IPX066 245 mg LD-3.8
IPX066 390 mg LD-6.0
Placebo0.6

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"Percentage of Off Time During Waking Hours at End of Study"

"Percentage of off time during waking hours at end of study is measured by using the Parkinson's disease diary. Off time describes a period when the participant experiences increased Parkinsonian symptoms (e.g. immobility or inability to move with ease)." (NCT00974974)
Timeframe: 22 weeks

Interventionpercentage (Mean)
IPX06623.82
IR CD-LD (Active Comparator)29.79

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"On Time Without Troublesome Dyskinesia"

"On time without troublesome dyskinesiais measured by using the Parkinson's disease diary. On time without troublesome dyskinesia describes a period when the participant experiences decreased Parkinsonian symptoms (e.g. immobility or inability to move with ease) without dyskinesia (i.e. difficulty in performing voluntary movements) that affect daily living." (NCT00974974)
Timeframe: 22 weeks

Interventionhours (Mean)
IPX06611.84
IR CD-LD (Active Comparator)10.91

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"Off Time"

"Off time hours is measured by using the Parkinson's disease diary. Off time describes a period when the participant experiences increased Parkinsonian symptoms (e.g. immobility or inability to move with ease)." (NCT00974974)
Timeframe: 22 weeks

Interventionhours (Mean)
IPX0663.87
IR CD-LD (Active Comparator)4.88

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Patient Global Impression (PGI)

"Satisfaction of IPX066 using Patient Global Impression (PGI) 7-point scale.~Patient Global Impression 0-7 - higher value indicates increased improvement from study start" (NCT01096186)
Timeframe: 9 months

Interventionunits on a scale (Mean)
IPX0665.4

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Total UPDRS Parts I-IV

"Analysis of the Change from Baseline in the sum of the Unified Parkinson's Disease Rating Scale (UPDRS) Part I (Mentation, Behavior and Mood), Part II (Activities of Daily Living), UPDRS Part III (Motor Examination), and Part IV (Complications of Therapy [In the past week]) at End of Study. Includes both scoring by a clinician and a historical report of mental functioning, activities of daily living and complications of therapy in the past week obtained by questioning the patient.~Unified Parkinson's Disease Rating Scale (UPDRS) - Four Parts Higher score values represent a worse outcome.~Subscales II and III were summed:~Part I: Mentation, Behavior and Mood - 4 questions 1-4 Score range: 1-16 Part II: Activities of Daily Living - 13 questions 5-17 Score range: 0-52 Part III: Motor Examination - 19 questions 18-31 and 25 total assessments Score range: 0-100 Part IV: Complications of Therapy (In the past week) - 11 questions Score range: 0-25" (NCT01096186)
Timeframe: 9 months

Interventionunits on a scale (Mean)
IPX06630.5

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Change From Baseline in the Sum of UPDRS Part II + UPDRS Part III

"Analysis of the Change from Baseline in the sum of the Unified Parkinson's Disease Rating Scale (UPDRS) Part II (Activities of Daily Living) + UPDRS Part III (Motor Examination) at End of Study.~Unified Parkinson's Disease Rating Scale (UPDRS) - Four Parts Higher score values represent a worse outcome.~Subscales II and III were summed:~Part I: Mentation, Behavior and Mood - 4 questions 1-4 Score range: 1-16 Part II: Activities of Daily Living - 13 questions 5-17 Score range: 0-52 Part III: Motor Examination - 19 questions 18-31 and 25 total assessments Score range: 0-100 Part IV: Complications of Therapy (In the past week) - 11 questions Score range: 0-25" (NCT01096186)
Timeframe: 9 months

Interventionunits on a scale (Mean)
IPX06626.4

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"Total OFF Time During Waking Hours"

"Using a Parkinson's disease diary, subjects recorded a state of asleep, OFF, ON without dyskinesia, ON with non-troublesome dyskinesia, or ON with troublesome dyskinesia every 30 minutes over a 24-hour day for the last 3 days of each double-blind crossover treatment period.~Mean Total Off Time During Waking Hours was calculated. Off Time is Time when medication has worn off and is no longer providing benefit with regard to mobility, slowness, and stiffness." (NCT01130493)
Timeframe: 3 days of data immediately prior to the end of each 2 week treatment period

Interventionhours (Mean)
IPX0663.82
CLE (Active Comparator)5.22

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"Total On With No Troublesome Dyskinesia"

"Using a Parkinson's disease diary, subjects recorded a state of asleep, OFF, ON without dyskinesia, ON with non-troublesome dyskinesia, or ON with troublesome dyskinesia every 30 minutes over a 24-hour day for the last 3 days of each double-blind crossover treatment period.~Mean Total On with No Troublesome Dyskinesia was calculated. On Time is when medication is providing benefit with regard to mobility, slowness, and stiffness." (NCT01130493)
Timeframe: 3 days of data immediately prior to the end of each 2 week treatment period

Interventionhours (Mean)
IPX06611.36
CLE (Active Comparator)9.98

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Subject Preference

Subjects who completed both treatments were asked to indicate a preference for Treatment Period 1 or Treatment Period 2 or no preference. Preferences for a particular treatment period were mapped to the associated treatment and reported. (NCT01130493)
Timeframe: End of Study (week 11)

InterventionParticipants (Count of Participants)
Number of Participants Who Preferred IPX06644
Number of Participants Who Preferred CLE23
Number of Participants Who Had no Preference17

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UPDRS Part II Plus Part III

"Unified Parkinson's Disease Rating Scale (UPDRS) Part II (Activities of Daily Living) and Part III (Motor Examination). Part II consists of 14 questions, each ranges from 0 (Normal/None) - 4 (Worst) with a total score of 0 - 72. Part III consists of 27 questions, each ranges from 0 (Normal/None) - 4 (Worst) with a total score of 0 - 108.~The UPDRS Part II Plus Part III scores ranged from 0 (no problems with daily living or mobility) to 180 (severe problems with daily living and mobility." (NCT01130493)
Timeframe: End of each double-blind treatment period.

InterventionScores on a scale (Mean)
IPX06629.3
CLE (Active Comparator)31.7

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"Percentage of OFF Time During Waking Hours"

"Using a Parkinson's disease diary, subjects recorded a state of asleep, OFF, ON without dyskinesia, ON with non-troublesome dyskinesia, or ON with troublesome dyskinesia every 30 minutes over a 24-hour day for the last 3 days of each double-blind crossover treatment period.~Mean percentage of OFF Time During Waking Hours was calculated. Off Time is Time when medication has worn off and is no longer providing benefit with regard to mobility, slowness, and stiffness." (NCT01130493)
Timeframe: 3 days of data immediately prior to the end of each 2 week treatment period

InterventionPercent (Mean)
IPX06623.98
CLE (Active Comparator)32.48

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Distribution of Amblyopic Eye Visual Acuity at 18 Weeks

(NCT01190813)
Timeframe: 18 weeks after enrollment

,
Interventionparticipants (Number)
20/25 (78-82 letters)20/32 (73-77 letters)20/40 (68-72 letters)20/50 (63-67 letters)20/63 (58-62 letters)20/80 (53-57 letters)20/100 (48-52 letters)20/125 (43-47 letters)20/160 or worse (<=42 letters)
Levodopa/Carbidopa0572018121743
Placebo016595937

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Distribution of Amblyopic Eye Visual Acuity Change From Baseline

"The primary outcome is the amblyopic eye visual acuity letter score measured at the 18-week primary outcome visit following a rapid taper of study medicine beginning at week 16. The primary analytic approach will be a treatment group comparison of the mean amblyopic eye visual acuity adjusted for baseline acuity.~Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line." (NCT01190813)
Timeframe: 18 weeks after enrollment

,
Interventionparticipants (Number)
10-14 letters worse5-9 letters worsewithin 4 letters5-9 letters better10-14 letters better>= 15 letters better
Levodopa/Carbidopa023536103
Placebo01231911

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Distribution of Amblyopic Eye Visual Acuity Change From Baseline at 10 Weeks

Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line. (NCT01190813)
Timeframe: 10 weeks after enrollment

,
Interventionparticipants (Number)
10-14 letters worse5-9 letters worsewithin 4 letters5-9 letters better10-14 letters better>= 15 letters better
Levodopa/Carbidopa14433073
Placebo0130890

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Distribution of Amblyopic Eye Visual Acuity Change From Baseline at 16 Weeks

Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line. (NCT01190813)
Timeframe: 16 weeks after enrollment

,
Interventionparticipants (Number)
10-14 letters worse5-9 letters worsewithin 4 letters5-9 letters better10-14 letters better>= 15 letters better
Levodopa/Carbidopa01413096
Placebo002610100

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Distribution of Amblyopic Eye Visual Acuity Change From Baseline at 26 Weeks

Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line. (NCT01190813)
Timeframe: 26 weeks after enrollment

,
Interventionparticipants (Number)
5-9 letters worsewithin 4 letters5-9 letters better10-14 letters better>= 15 letters better
Levodopa/Carbidopa33630143
Placebo1231650

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Distribution of Amblyopic Eye Visual Acuity Change From Baseline at 4 Weeks

Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line. (NCT01190813)
Timeframe: 4 weeks after enrollment

,
Interventionparticipants (Number)
10-14 letters worse5-9 letters worsewithin 4 letters5-9 letters better10-14 letters better>= 15 letters better
Levodopa/Carbidopa06552340
Placebo02281511

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Distribution of Fellow Eye Visual Acuity at 18 Weeks

Similar to the analysis for the amblyopic eye, the fellow eye visual acuity will be evaluated to determine if study treatment had an adverse effect on the occluded eye. The analysis will be a treatment group comparison of the mean fellow eye visual acuity at 18 weeks after enrollment, adjusted for baseline acuity. (NCT01190813)
Timeframe: 18 weeks after enrollment

,
Interventionparticipants (Number)
20/12 (93-97 letters)20/16 (88-92 letters)20/20 (83-87 letters)20/25 (78-82 letters)20/32 (73-77 letters)
Levodopa/Carbidopa12442281
Placebo4221630

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Amblyopia Resolution at 16 Weeks

Treatment group comparisons adjusted for baseline acuity scores using logistic regression of the proportion of subjects with 20/25 or better visual acuity. (NCT01190813)
Timeframe: 16 weeks after enrollment

,
Interventionparticipants (Number)
20/25 or better20/32 or worse
Levodopa/Carbidopa186
Placebo046

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Distribution of Fellow Eye Visual Acuity Change From Baseline at 18 Weeks

Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line. (NCT01190813)
Timeframe: 18 weeks after enrollment

,
Interventionparticipants (Number)
>=15 letters worse10-14 letters worse5-9 letters worsewithin 4 letters5-9 letters better10-14 letters better
Levodopa/Carbidopa00468150
Placebo0033930

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Amblyopic Eye Visual Acuity Improvement Treatment Group Comparison at 16 Weeks

Treatment group comparisons of the proportion of subjects who have improved from baseline by 10 or more letters. (NCT01190813)
Timeframe: 16 weeks after enrollment

,
Interventionparticipants (Number)
Improved 10 or more lettersNot improved 10 or more letters
Levodopa/Carbidopa1572
Placebo1036

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Distribution of Fellow Eye Visual Acuity Change From Baseline at 26 Weeks

Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line. (NCT01190813)
Timeframe: 26 weeks after enrollment

,
Interventionparticipants (Number)
>=15 letters worse10-14 letters worse5-9 letters worsewithin 4 letters5-9 letters better10-14 letters better
Levodopa/Carbidopa1027472
Placebo0043560

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Mean Systemic Adverse Events

(NCT01190813)
Timeframe: Enrollment through 26 weeks

Interventionevents (Mean)
Levodopa/Carbidopa1.28
Placebo1.55

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Amblyopia Resolution at 18 Weeks

Treatment group comparisons adjusted for baseline acuity scores using logistic regression of the proportion of subjects with 20/25 or better visual acuity. (NCT01190813)
Timeframe: 18 weeks after enrollment

,
Interventionparticipants (Number)
20/25 or better20/32 or worse
Levodopa/Carbidopa086
Placebo045

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Amblyopia Resolution at 26 Weeks

Treatment group comparisons adjusted for baseline acuity scores using logistic regression of the proportion of subjects with 20/25 or better visual acuity. (NCT01190813)
Timeframe: 26 weeks after enrollment

,
Interventionparticipants (Number)
20/25 or better20/32 or worse
Levodopa/Carbidopa086
Placebo045

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Amblyopia Resolutionat 4 Weeks

Treatment group comparisons adjusted for baseline acuity scores using logistic regression of the proportion of subjects with 20/25 or better visual acuity. (NCT01190813)
Timeframe: 4 weeks after enrollment

,
Interventionparticipants (Number)
20/25 or better20/32 or worse
Levodopa/Carbidopa088
Placebo047

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Amblyopic Eye Visual Acuity Improvement Treatment Group Comparison at 10 Weeks

Treatment group comparisons of the proportion of subjects who have improved from baseline by 10 or more letters. (NCT01190813)
Timeframe: 10 weeks after enrollment

,
Interventionparticipants (Number)
Improved 10 or more lettersNot improved 10 or more letters
Levodopa/Carbidopa1078
Placebo939

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Amblyopia Resolution at 10 Weeks

Treatment group comparisons adjusted for baseline acuity scores using logistic regression of the proportion of subjects with 20/25 or better visual acuity. (NCT01190813)
Timeframe: 10 weeks after enrollment

,
Interventionparticipants (Number)
20/25 or better20/32 or worse
Levodopa/Carbidopa088
Placebo048

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Mean Parent Symptom Survey Score at 4 Weeks

A treatment group comparison of symptom survey scores at the 4 week visit. The average of the overall item responses will be calculated and compared by treatment group with a t-test for difference in means. A higher number reflects a more negative response (5=always, 4=often, 3=sometimes, 2=rarely, 1=never). (NCT01190813)
Timeframe: 4 weeks after enrollment

Interventionunits on a scale (Mean)
Levodopa/Carbidopa1.29
Placebo1.26

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Mean Parent Symptom Survey Score at 26 Weeks

A treatment group comparison of symptom survey scores at the 26 week visit. The average of the overall item responses will be calculated and compared by treatment group with a t-test for difference in means. A higher number reflects a more negative response (5=always, 4=often, 3=sometimes, 2=rarely, 1=never). (NCT01190813)
Timeframe: 26 weeks after enrollment

Interventionunits on a scale (Mean)
Levodopa/Carbidopa1.19
Placebo1.22

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Mean Parent Symptom Survey Score at 18 Weeks

A treatment group comparison of symptom survey scores at the primary outcome (18 week) visit. The average of the overall item responses will be calculated and compared by treatment group with a t-test for difference in means. A higher number reflects a more negative response (5=always, 4=often, 3=sometimes, 2=rarely, 1=never). (NCT01190813)
Timeframe: 18 weeks after enrollment

Interventionunits on a scale (Mean)
Levodopa/Carbidopa1.17
Placebo1.17

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Mean Parent Symptom Survey Score at 16 Weeks

A treatment group comparison of symptom survey scores at the 16 week visit. The average of the overall item responses will be calculated and compared by treatment group with a t-test for difference in means. A higher number reflects a more negative response (5=always, 4=often, 3=sometimes, 2=rarely, 1=never). (NCT01190813)
Timeframe: 16 weeks after enrollment

Interventionunits on a scale (Mean)
Levodopa/Carbidopa1.24
Placebo1.25

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Mean Parent Symptom Survey Score at 10 Weeks

A treatment group comparison of symptom survey scores at the 10 week visit. The average of the overall item responses will be calculated and compared by treatment group with a t-test for difference in means. A higher number reflects a more negative response (5=always, 4=often, 3=sometimes, 2=rarely, 1=never). (NCT01190813)
Timeframe: 10 weeks after enrollment

Interventionunits on a scale (Mean)
Levodopa/Carbidopa1.22
Placebo1.30

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Mean Fellow Eye Visual Acuity Change From Baseline at 26 Weeks

Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line. (NCT01190813)
Timeframe: 26 weeks after enrollment

Interventionletters (Mean)
Levodopa/Carbidopa1.4
Placebo0.8

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Mean Fellow Eye Visual Acuity Change From Baseline at 18 Weeks

Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line. (NCT01190813)
Timeframe: 18 weeks after enrollment

Interventionletters (Mean)
Levodopa/Carbidopa1.5
Placebo0.5

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Mean Fellow Eye Visual Acuity at 26 Weeks

Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line. (NCT01190813)
Timeframe: 26 weeks after enrollment

Interventionletters (Mean)
Levodopa/Carbidopa88.0
Placebo88.2

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Mean Fellow Eye Visual Acuity at 18 Weeks

Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line. (NCT01190813)
Timeframe: 18 weeks after enrollment

Interventionletters (Mean)
Levodopa/Carbidopa88.1
Placebo88.0

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Mean Child Symptom Survey Score at Enrollment

A treatment group comparison of symptom survey scores at enrollment. The average of the overall item responses will be calculated and compared by treatment group with a t-test for difference in means. A higher number reflects a more negative response (5=always, 4=often, 3=sometimes, 2=rarely, 1=never). (NCT01190813)
Timeframe: At enrollment

Interventionunits on a scale (Mean)
Levodopa/Carbidopa1.60
Placebo1.73

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Mean Child Symptom Survey Score at 4 Weeks

A treatment group comparison of symptom survey scores at the 4 week visit. The average of the overall item responses will be calculated and compared by treatment group with a t-test for difference in means. A higher number reflects a more negative response (5=always, 4=often, 3=sometimes, 2=rarely, 1=never). (NCT01190813)
Timeframe: 4 weeks after enrollment

Interventionunits on a scale (Mean)
Levodopa/Carbidopa1.42
Placebo1.51

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Mean Child Symptom Survey Score at 26 Weeks

A treatment group comparison of symptom survey scores at the 26 week visit. The average of the overall item responses will be calculated and compared by treatment group with a t-test for difference in means. A higher number reflects a more negative response (5=always, 4=often, 3=sometimes, 2=rarely, 1=never). (NCT01190813)
Timeframe: 26 weeks after enrollment

Interventionunits on a scale (Mean)
Levodopa/Carbidopa1.23
Placebo1.33

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Mean Amblyopic Eye Visual Acuity at 18 Weeks

Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line. (NCT01190813)
Timeframe: 18 weeks after enrollment

Interventionletters (Mean)
Levodopa/Carbidopa58.7
Placebo54.8

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Mean Amblyopic Eye Visual Acuity Change From Baseline

"The primary outcome is the amblyopic eye visual acuity letter score measured at the 18-week primary outcome visit following a rapid taper of study medicine beginning at week 16. The primary analytic approach will be a treatment group comparison of the mean amblyopic eye visual acuity adjusted for baseline acuity.~Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line." (NCT01190813)
Timeframe: 18 weeks after enrollment

Interventionletters (Mean)
Levodopa/Carbidopa5.2
Placebo3.8

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Mean Change in Amblyopic Eye Visual Acuity From Baseline at 10 Weeks

A treatment group comparison of the mean amblyopic eye visual acuity at 10 weeks after enrollment, adjusted for baseline acuity. Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line. (NCT01190813)
Timeframe: 10 weeks after enrollment

Interventionletters (Mean)
Levodopa/Carbidopa3.8
Placebo3.7

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Mean Change in Amblyopic Eye Visual Acuity From Baseline at 16 Weeks

A treatment group comparison of the mean amblyopic eye visual acuity at 16 weeks after enrollment, adjusted for baseline acuity. Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line. (NCT01190813)
Timeframe: 16 weeks after enrollment

Interventionletters (Mean)
Levodopa/Carbidopa5.1
Placebo4.2

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Distribution of Fellow Eye Visual Acuity at 26 Weeks

Similar to the analysis for the amblyopic eye, the fellow eye visual acuity will be evaluated to determine if study treatment had an adverse effect on the occluded eye. The analysis will be a treatment group comparison of the mean fellow eye visual acuity at 26 weeks after enrollment, adjusted for baseline acuity. (NCT01190813)
Timeframe: 26 weeks after enrollment

,
Interventionparticipants (Number)
20/12 (93-97 letters)20/16 (88-92 letters)20/20 (83-87 letters)20/25 (78-82 letters)20/32 (73-77 letters)
Levodopa/Carbidopa15342890
Placebo7221321

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Mean Change in Amblyopic Eye Visual Acuity From Baseline at 26 Weeks

A treatment group comparison of the mean amblyopic eye visual acuity at 26 weeks after enrollment, adjusted for baseline acuity. Visual acuity was measured in each eye (right eye first) by a study-certified VA tester using the Electronic Early Treatment of Diabetic Retinopathy Study (E-ETDRS©) visual acuity protocol. Five letters is equivalent to one logMAR line. (NCT01190813)
Timeframe: 26 weeks after enrollment

Interventionletters (Mean)
Levodopa/Carbidopa5.0
Placebo4.2

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Mean Change in Amblyopic Eye Visual Acuity From Baseline at 4 Weeks

A treatment group comparison of the mean amblyopic eye visual acuity at 4 weeks after enrollment, adjusted for baseline acuity. (NCT01190813)
Timeframe: 4 weeks after enrollment

Interventionletters (Mean)
Levodopa/Carbidopa2.2
Placebo2.5

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Mean Parent Symptom Survey Score at Enrollment

A treatment group comparison of symptom survey scores at enrollment. The average of the overall item responses will be calculated and compared by treatment group with a t-test for difference in means. A higher number reflects a more negative response (5=always, 4=often, 3=sometimes, 2=rarely, 1=never). (NCT01190813)
Timeframe: At enrollment

Interventionunits on a scale (Mean)
Levodopa/Carbidopa1.42
Placebo1.44

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Amblyopic Eye Visual Acuity Improvement Treatment Group Comparison at 18 Weeks

Treatment group comparisons of the proportion of subjects who have improved from baseline by 10 or more letters. (NCT01190813)
Timeframe: 18 weeks after enrollment

Interventionparticipants (Number)
Levodopa/Carbidopa13
Placebo2

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Mean Child Symptom Survey Score at 10 Weeks

A treatment group comparison of symptom survey scores at the 10 week visit. The average of the overall item responses will be calculated and compared by treatment group with a t-test for difference in means. A higher number reflects a more negative response (5=always, 4=often, 3=sometimes, 2=rarely, 1=never). (NCT01190813)
Timeframe: 10 weeks after enrollment

Interventionunits on a scale (Mean)
Levodopa/Carbidopa1.33
Placebo1.42

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Mean Child Symptom Survey Score at 16 Weeks

A treatment group comparison of symptom survey scores at the 16 week visit. The average of the overall item responses will be calculated and compared by treatment group with a t-test for difference in means. A higher number reflects a more negative response (5=always, 4=often, 3=sometimes, 2=rarely, 1=never). (NCT01190813)
Timeframe: 16 weeks after enrollment

Interventionunits on a scale (Mean)
Levodopa/Carbidopa1.25
Placebo1.38

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Mean Child Symptom Survey Score at 18 Weeks

A treatment group comparison of symptom survey scores at the primary outcome (18 week) visit. The average of the overall item responses will be calculated and compared by treatment group with a t-test for difference in means. A higher number reflects a more negative response (5=always, 4=often, 3=sometimes, 2=rarely, 1=never). (NCT01190813)
Timeframe: 18 weeks after enrollment

Interventionunits on a scale (Mean)
Levodopa/Carbidopa1.17
Placebo1.28

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Amblyopic Eye Visual Acuity Improvement Treatment Group Comparison at 26 Weeks

Treatment group comparisons adjusted for baseline acuity scores using logistic regression of the proportion of subjects who have improved from baseline by 10 or more letters. (NCT01190813)
Timeframe: 26 weeks after enrollment

,
Interventionparticipants (Number)
Improved 10 or more lettersNot improved 10 or more letters
Levodopa/Carbidopa1769
Placebo540

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Amblyopic Eye Visual Acuity Improvement Treatment Group Comparison at 4 Weeks

Treatment group comparisons adjusted for baseline acuity scores using logistic regression of the proportion of subjects who have improved from baseline by 10 or more letters. (NCT01190813)
Timeframe: 4 weeks after enrollment

,
Interventionparticipants (Number)
Improved 10 or more lettersDid not improve 10 or more letters
Levodopa/Carbidopa484
Placebo245

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Composite Daily Score

Daily scores were reported on a modified version of the Rhodes Index of Nausea, Vomiting and Retching, which included all 5 items relating to nausea and retching. Items addressing vomiting/throwing up were omitted, as all participants had antireflux surgery that prevented vomiting (Nissen fundoplication). Retching distress, nausea distress, number of nausea episodes per day, number of retching episodes per day, and the amount of time spent feeling nauseous were graded on a 5-point scale. Scores range from 0 (no nausea/distress) to 20 (most nausea/distress). (NCT01212484)
Timeframe: 4 weeks

Interventionunits on a scale (Mean)
Carbidopa6.9
Placebo9.7

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Number of Episodes of Daily Nausea

(NCT01212484)
Timeframe: 4 weeks

Interventionepisodes of nausea (Mean)
Carbidopa1.2
Placebo2.0

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24 Hour Dopamine Levels

Assay of 24 hour dopamine level excretion in urine (NCT01212484)
Timeframe: 4 weeks

Interventionug/gCR (Mean)
Carbidopa127
Placebo222

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UPDRS (Unified Parkinson's Disease Rating Scale) Sections I (ON), II (ON and OFF), and III (ON)

"Total UPDRS SCORE (I, II (ON), and III) Change from Baseline to Endpoint~UPDRS I evaluation of mentation, behavior, and mood~UPDRS II self-evaluation of the activities of daily life (ADLs) including speech, swallowing, handwriting, dressing, hygiene, falling, salivating, turning in bed, walking, and cutting food~UPDRS III clinician-scored monitored motor evaluation The UPDRS I, II and III scores and subscores are calculated as the sum of all individual items. If one or two items in a scale are missing, they will be imputed with the mean of the non-missing items of that scale.~Subscale has 0-4 ratings, where 0 = normal, 1 = slight, 2 = mild, 3 = moderate, and 4 = severe~The final cumulative score will range from 0 (no disability) to 199 (total disability)." (NCT01227655)
Timeframe: 14-15 weeks

,,
Interventionunits on a scale (Mean)
BaselineEndpoint
BIA 9-1067 25 mg30.826.6
BIA 9-1067 50 mg31.728.7
Placebo31.528.1

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Non-motor Symptoms Scale (NMSS)

"The Non-motor Symptoms Scale (NMSS) consists of 30 questions, covering 9 dimensions, whereby each item is scored for severity and frequency: Severity None 0 Mild (symptoms present but causes little distress) 1 Moderate (some distress or disturbance to subject) 2 Severe (major source of distress or disturbance to subject) 3~Frequency Rarely (<1/wk) 1 Often (1/wk) 2 Frequent (several times per week) 3 Very Frequent (daily or all the time) 4~The product of frequency and severity is calculated for each item and each dimension score is defined as the sum of the frequency*severity of the respective items. If frequency or severity of a single item is missing, the domain score will not be calculated. The NMSS total score is defined as the sum of all domain scores.~The NMSS total score is calculated by adding all domain scores (0-360), and lower scores mean less disability." (NCT01227655)
Timeframe: 14-15 weeks

,,
Interventionunits on a scale (Mean)
BaselineVisit 5Visit 7
BIA 9-1067 25 mg38.233.735.0
BIA 9-1067 50 mg36.733.231.5
Placebo38.233.531.6

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Efficacy of 2 BIA 9-1067 (25 mg, and 50 mg) Compared With Placebo, When Administered With the Existing Treatment of L-DOPA Plus a DDCI (DOPA Decarboxylase Inhibitor)

Efficacy of 2 BIA 9-1067 (25 mg, and 50 mg) compared with placebo, when administered with the existing treatment of L-DOPA plus a DDCI (DOPA decarboxylase inhibitor), in patients with PD and end-of-dose motor fluctuations. The primary efficacy variable will be the change from baseline in absolute OFF-time at the end of the DB period. (NCT01227655)
Timeframe: 14-15 weeks

Interventionminutes (Mean)
BIA 9-1067 25 mg-102.8
BIA 9-1067 50 mg-124.0
Placebo-64.5

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Parkinson's Disease Sleep Scale (PDSS)

"The Parkinson's disease Sleep Scale (PDSS) is a specific scale for the assessment of sleep disturbances in subjects with PD. The PDSS score is calculated as the sum of all single items. If one or two items are missing, they will be imputed with the mean of the non-missing items. If three or more items are missing, no imputation will be done and the score will be set to missing.~Subscale has 0-10 ratings, where 0 = severe and 10 = normal~The PDSS total score is a sum score of all 15 questions and ranges from 0 to 150, with lower scores meaning more disability." (NCT01227655)
Timeframe: 14-15 weeks

,,
Interventionunits on a scale (Mean)
BaselineVisit 5Visit 7
BIA 9-1067 25 mg95.7597.9998.79
BIA 9-1067 50 mg102.62103.05103.25
Placebo101.76107.11105.39

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Number of Participants Who Completed the 10 Week Trial

(NCT01393457)
Timeframe: 10 weeks

Interventionparticipants (Number)
Ldopa + Ropinirole Low Dose14
Ldopa + Ropinirole High Dose14
Ldopa16
Placebo15

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Cocaine Use Based on Urine Drug Screening

The mean of the predicted probabilities (derived from generalized linear mixed models) of negative drug screens over all 10 weeks is reported, as per the analysis proposed in the protocol. (NCT01393457)
Timeframe: 10 weeks

Interventionnumber of negative drug screens (Mean)
Ldopa + Ropinirole Low Dose20.36
Ldopa + Ropinirole High Dose15.57
Ldopa22.3
Placebo27.8

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AUC of Levodopa Plasma Concentrations Above Baseline

Baseline value is levodopa concentration at 9 AM. AUC is calculated as levodopa concentrations minus 9 AM value at 30 minute intervals until 2 PM. (NCT01399905)
Timeframe: Measured every 30 minutes from 9 AM until 2 PM

Intervention(µg/ml)*(hours) (Mean)
Low-dose Carbidopa (75 mg/Day) Day 15.38
High-dose Carbidopa (450 mg/Day) Day 15.91
Low-dose Carbidopa (75 mg/Day) Day 25.23
High-dose Carbidopa (450 mg/Day) Day 26.13

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Area Under the Curve (AUC) of Tapping Speed

"Tapping speed is an index of bradykinesia and is used as a response to levodopa infusion.~Reported as increase over average of three measurements between 8 AM and 9 AM (baseline tapping speed) as (taps/min)*(hours) for tapping scores from beginning of levodopa infusion to 3 hours after conclusion of levodopa infusion." (NCT01399905)
Timeframe: Performed every 30 minutes from 8 AM to 2 PM

Intervention(taps/min)*(hours) (Mean)
Low-dose Carbidopa (75 mg/Day) Day 1141
Low-dose Carbidopa (75 mg/Day) Day 2141
High-dose Carbidopa (450 mg/Day) Day 1145
High-dose Carbidopa (450 mg/Day) Day 2201

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Language Quotient (LQ) on the Western Aphasia Battery

"Includes a measure of auditory comprehension, oral expression, reading and written expression skills.~The scale ranges from 1 - 100 with 100 being better. The change or gain score from baseline to immediately post-treatment (at 6 weeks) is reported. The larger the change score, the greater the improvement." (NCT01429077)
Timeframe: Change from Baseline in Western Aphasia Battery LQ at 6 weeks

Interventionunits on a scale (Mean)
Levodopa/Carbidopa3.16
Inactive Pill2.59

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Retention in Treatment

The number of participants who completed the 12-week medication phase of the study. (NCT01468012)
Timeframe: 12 weeks

Interventionparticipants (Number)
Levodopa Carbidopa and Entacapone (LCE)7
Placebo9
Non-randomized0

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Unified Parkinson's Disease Rating Score (UPDRS II, III)

baseline (1st visit, V1), completion of dosage titration within 10 weeks after baseline (2nd visit, V2), 1 year after baseline (final visit, V5) UPDRS II score 0-52 (13 items); UPDRS III score 0-56 (14 items); The more scores,the more severe; the two scales were evaluated separately. (NCT01470859)
Timeframe: three times: baseline, 10 weeks, 1 year

,
Interventionunits on a scale (Mean)
UPDRS II at baseline (V1)UPDRS II (V2)UPDRS II at 1 year (V5)UPDRS III at baseline (V1)UPDRS III (V2)UPDRS III at 1 year (V5)
Levodopa7.35.87.418.712.719.5
Pramipexole7.14.98.423.120.124.3

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Patients With Clinical Improvement as Evaluated by Global Impression Scale (CGI).

"Patients with a score <= 2 (very much or much improved in relation to baseline) are considered as clinically improved.~The numbers of participants with clinical improvement are reported here. The completion of dosage titration within 10 weeks after baseline (visit 2) and 1 year after baseline (final visit)" (NCT01470859)
Timeframe: twice, at 10 weeks(V2) and 1 year(V5)

,
Interventionparticipants (Number)
Patients with improvement at V2Patients with improvement at V5
Levodopa62
Pramipexole44

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Parkinson's Disease Questionnaire (PDQ39)

"The PDQ39 score was assessed at baseline (1st visit, V1) and 1 year after baseline (final visit, V5).~PDQ39 score ranges from 0-156 (0-4 each item); the more score, the more severe." (NCT01470859)
Timeframe: twice baseline and 1 year

,
Interventionunits on a scale (Mean)
PDQ39 at baseline (V1)PDQ39 at 1 year (V5)
Levodopa19.3820.36
Pramipexole20.3621.07

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Longitudinal Change of Brain Network Activity

"The brain network activity is evaluated by Parkinson's disease-related spatial covariance pattern(PDRP) value (Z score).~The change of brain network activity is calculated by the PDRP value (Z score) at V5 - the PDRP value (Z score) at V1." (NCT01470859)
Timeframe: twice, baseline and 1 year after baseline

,
InterventionZ-score in PDRP (Mean)
Change from baseline (V5-V1)Z score at baseline (V1)Z score at 1 year (V5)
Levodopa0.412.212.29
Pramipexole0.613.614.09

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Hoehn&Yahr (H&Y) Staging

"The Hoehn and Yahr scale is a commonly used scale for describing how the symptoms of Parkinson's disease progress and the disease stages. Bigger numbers indicate more symptoms and disease progression. H&Y stage range from 0-5; the greater, the more severe.~The H&Y stages of patients were evaluated at baseline (1st visit, V1), and 1 year after baseline (final visit, V5)." (NCT01470859)
Timeframe: twice baseline and 1 year

,
Interventionunits on a scale (Mean)
H&Y at baseline(V1)H&Y at 1 year(V5)
Levodopa1.351.65
Pramipexole1.431.82

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Number of Participants With Potentially Clinically Significant 12-lead Electrocardiogram (ECG) Results During the ABT-SLV187 Treatment Period

High potentially clinically significant Bazett's heart rate-corrected QT interval (QTcB) values were: 450 msec for males / 470 msec for females. (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionparticipants (Number)
Levodopa-carbidopa Intestinal Gel0

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"Mean Change From Baseline to the End of Treatment in Percentage of Ratings in the Normal State on the Treatment Response Scale (TRS) I"

"Participants were video recorded a total of 10 times for 1 to 2 minutes every 60 minutes while performing a standardized sequence of motor tasks: rest, finger taps, rapid alternating movement of hands, arising from chair and gait, including confirmation of postural stability. Based on these video recordings, a Video Evaluation Committee consisting of 3 neurologists individually evaluated the following Video Assessment and Treatment Response Scale (TRS) under blinded conditions: Finger Taps, Rapid Alternating Movement of Hands, Arising from Chair, Gait, Body Bradykinesia and Hypokinesia, Dyskinesia. The average of the neurologists' evaluations was calculated as a percentage of ratings in the Normal state (ie, mild OFF to ON with mild dyskinesia) on the TRS I (total 10 assessments per day)." (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionpercentage of ratings (Mean)
Levodopa-carbidopa Intestinal Gel15.33

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Number of Participants With Potentially Clinically Significant (PCS) Vital Signs Results During the ABT-SLV187 Treatment Period

↓=decrease, ↑=increase, BL=baseline, temp.=temperature, SBP=systolic blood pressure, Sup.=supine, Sta.=standing, DBP=diastolic blood pressure. (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionparticipants (Number)
Low PCS Weight [kg]: ≥7% ↓ from BLHigh PCS Weight [kg]: ≥7% ↑ from BLHigh PCS Body temp. [⁰C]: ≥38.8 and ≥1.1 ↑ from BLLow PCS SBP Sup. [mmHg]: ≤90 and >30 ↓ from BLHigh PCS SBP Sup. [mmHg]: ≥180 and >40 ↑ from BLLow PCS SBP Sta. [mmHg]: ≤90 and >30 ↓ from BLHigh PCS SBP Sta. [mmHg]: ≥180 and >40 ↑ from BLLow PCS SBP Orthostatic [mmHg]: ↓ of ≥30 in SBPLow PCS DBP Sup. [mmHg]: ≤50 and >30 ↓ from BLHigh PCS DBP Sup. [mmHg]: ≥105 and >30 ↑ from BLLow PCS DBP Sta. [mmHg]: ≤50 and >30 ↓ from BLHigh PCS DBP Sta. [mmHg]: ≥105 and >30 ↑ from BLLow PCS DBP Orthostatic [mmHg]: ↓ of ≥20 in DBPPulse rate [bpm]: ≤50 and >30 ↓ from BLPulse rate [bpm]: ≥120 and >30 ↑ from BL
Levodopa-carbidopa Intestinal Gel000001010000100

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Modified Hoehn and Yahr Staging at Baseline and End of Treatment

Participant's ON and OFF states staged according to the Modified Hoehn and Yahr criteria, an 8-point scale for staging: 0, No signs of disease; 1, Unilateral disease; 1.5, Unilateral plus axial involvement; 2, Bilateral disease; 2.5, Mild bilateral disease; 3, Mild to moderate bilateral disease; 4, Severe disability; and 5, Wheelchair bound or bedridden unless aided. ON time is when PD symptoms are well controlled by the drug. OFF time is when PD symptoms are not adequately controlled by the drug. (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionunits on a scale (Median)
ON state staging, BaselineON state staging, EndpointOFF state staging, BaselineOFF state staging, Endpoint
Levodopa-carbidopa Intestinal Gel2.53.04.04.0

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Number of Participants With Potentially Clinically Significant (PCS) Hematology Results During the ABT-SLV187 Treatment Period

M=male, F=female, MCV=mean corpuscular volume, MCH=mean corpuscular hemoglobin, MCHC=mean corpuscular hemoglobin concentration. (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionparticipants (Number)
Low PCS Hematocrit [%]: 39.8 M / 33.4 FHigh PCS Hematocrit [%]: 51.8 M / 44.9 FLow PCS Hemoglobin [g/dL]: 13.5 M / 11.3 FHigh PCS Hemoglobin [g/dL]: 17.6 M / 15.2 FLow PCS RBC Count [*10^4/µL]: 427 M / 376 FHigh PCS RBC Count [*10^4/µL]: 570 M / 500 FLow PCS WBC Count [/µL]: 3900 M / 3500 FHigh PCS WBC Count [/µL]: 9800 M / 9100 FLow PCS Neutrophils [%]: 40.0High PCS Neutrophils [%]: 74.0Low PCS Lymphocytes [%]: 18.0High PCS Lymphocytes [%]: 59.0Low PCS Monocytes [%]: 0.0High PCS Monocytes [%]: 8.0Low PCS Basophils [%]: 0.0High PCS Basophils [%]: 2.0Low PCS Eosinophils [%]: 0.0High PCS Eosinophils [%]: 6.0Low PCS Platelet count [*10^4/µL]: 13.1 M / 13.0 FHigh PCS Platelet count [*10^4/µL]: 36.2 M/ 36.9 FLow PCS MCV [FL]: 82.7 M / 79.0 FHigh PCS MCV [FL]: 101.6 M / 100.0 FLow PCS MCH [Pg]: 28 M / 26.3 FHigh PCS MCH [Pg]: 34.6 M / 34.3 FLow PCS MCHC [%]: 31.6 M / 30.7 FHigh PCS MCHC [%]: 36.6 M / 36.6 F
Levodopa-carbidopa Intestinal Gel30303010000001000001000010

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Number of Participants With PCS Values in Special Laboratory Parameters During the ABT-SLV187 Treatment Period

M=male, F=female (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionparticipants (Number)
Low PCS Vitamin B6 pyridoxamine [ng/mL]: Low PCS Vitamin B6 pyridoxal [ng/mL]: 6.0 M/4.0 FHigh PCS Vitamin B6 pyridoxal [ng/mL]: 40 M / 19 FLow PCS Vitamin B6 pyridoxine [ng/mL]: Low PCS Vitamin B12 [pg/mL]: 180High PCS Vitamin B12 [pg/mL]: 914Low PCS Homocysteine [nmol/mL]: 3.7High PCS Homocysteine [nmol/mL]: 13.5Low PCS Folic acid [ng/mL]: < 3.1
Levodopa-carbidopa Intestinal Gel041010041

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Number of Participants With PCS Blood Biochemistry Results During the ABT-SLV187 Treatment Period

M=male, F=female, γ-GTP=gamma-glutamyl transpeptidase. (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionparticipants (Number)
Low PCS Blood urea nitrogen [mg/dL]: 6High PCS Blood urea nitrogen [mg/dL]: 20Low Creatinine [mg/dL]: 0.61 M / 0.47 FHigh Creatinine [mg/dL]: 1.04 M / 0.79 FLow PCS Total bilirubin [mg/dL]: 0.2High PCS Total bilirubin [mg/dL]: 1.0Low PCS Alanine aminotransferase [U/L]: 5High PCS Alanine aminotransferase [U/L]: 40Low PCS Aspartate aminotransferase [U/L]: 10High PCS Aspartate aminotransferase [U/L]: 40Low PCS Alkaline phosphatase [U/L]: 115High PCS Alkaline phosphatase [U/L]: 359Low PCS γ-GTP [U/L]: 0High PCS γ-GTP [U/L]: 70 M / 30 FLow PCS Sodium [mEq/L]: 136High PCS Sodium [mEq/L]: 147Low PCS Potassium [mEq/L]: 3.6High PCS Potassium [mEq/L]: 5.0Low PCS Calcium [mg/dL]: 8.7High PCS Calcium [mg/dL]: 10.1Low PCS Chloride [mEq/L]: 98High PCS Chloride [mEq/L]: 109Low PCS Magnesium [mg/dL]: 1.8High PCS Magnesium [mg/dL]: 2.6Low PCS Inorganic Phosphors [mg/dL]: 2.4High PCS Inorganic Phosphors [mg/dL]: 4.3Low PCS Uric acid [mg/dL]: 3.7 M / 2.5 FHigh PCS Uric acid [mg/dL]: 7 M / 7.0 FLow PCS Total cholesterol [mg/dL]: 150High PCS Total cholesterol [mg/dL]: 219Low PCS Total protein [g/dL]: 6.7High PCS Total protein [g/dL]: 8.3Low PCS Albumin [g/dL]: 4.0High PCS Albumin [g/dL]: 5.0Low PCS Glucose [mg/dL]: 70High PCS Glucose [mg/dL]: 109Low PCS Triglycerides [mg/dL]: 50High PCS Triglycerides [mg/dL]: 149Low PCS Creatine kinase [U/L]: 57 M / 32 FHigh PCS Creatine kinase [U/L]: 197 M / 180 FLow PCS Bicarbonate [mEq/L]: 22High PCS Bicarbonate [mEq/L]: 29Low PCS Lactate dehydrogenase [U/L]: 115High PCS Lactate dehydrogenase [U/L]: 245
Levodopa-carbidopa Intestinal Gel01200000100100100030100101200250300110130001

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Number of Participants With AEs, SAEs, and AEs Leading to Discontinuation During the ABT-SLV187 Treatment Period

AE: any untoward medical occurrence in a participant that does not necessarily have a causal relationship with this treatment. SAE: an event that results in the death of a subject, is life threatening, results in hospitalization or prolongation of hospitalization, is a congenital anomaly, results in persistent or significant disability/incapacity, or other important medical event. Severity was rated as mild, moderate, or severe. AEs of special interest included: device-associated gastrointestinal disorders; cardiovascular fatalities; aspiration including aspiration pneumonia; a diagnosis of peripheral polyneuropathy (axonal, demyelinating or mixed type); possible symptoms of peripheral polyneuropathy; clinically significant weight loss. 'AEs at least possibly related' are defined as those that were assessed by investigator as probably related or possibly related. (NCT01479127)
Timeframe: From NJ placement to end of ABT-SLV187 Treatment Period (Day 21) +30 days

Interventionparticipants (Number)
AEAE at least possibly related to study drug/deviceSevere AESAEAE leading to discontinuation of study drugSAE at least possiby drug or drug device-relatedAE of special interestAE caused by study drugAE caused by devicesAE caused by NJ tube insertionFatal AE
Levodopa-carbidopa Intestinal Gel43111123010

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Number of Participants With Adverse Events (AEs), Serious AEs (SAEs), and AEs Leading to Discontinuation During the Run-in Period

AE: any untoward medical occurrence in a participant that does not necessarily have a causal relationship with this treatment. SAE: an event that results in the death of a subject, is life threatening, results in hospitalization or prolongation of hospitalization, is a congenital anomaly, results in persistent or significant disability/incapacity, or other important medical event. Severity was rated as mild, moderate, or severe. AEs of special interest included: device-associated gastrointestinal disorders; cardiovascular fatalities; aspiration including aspiration pneumonia; a diagnosis of peripheral polyneuropathy (axonal, demyelinating or mixed type); possible symptoms of peripheral polyneuropathy; clinically significant weight loss. 'AEs at least possibly related' are defined as those that were assessed by investigator as probably related or possibly related. (NCT01479127)
Timeframe: During the Run-in period (up to approximately 28 days)

Interventionparticipants (Number)
AEAE at least possibly related to study drug/deviceSevere AESAEAE leading to discontinuation of study drugSAE at least possibly drug or drug device-relatedAE of special interestAE caused by study drugAE caused by devicesAE caused by NJ tube insertionFatal AE
Oral Levodopa/Carbidopa Tablet75001005NANA0

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Mean Change From Baseline to the End of Treatment in UPDRS Total Scores and Subscores

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The total score is the sum of the responses to the 31 questions (44 answers) that comprise Parts I-III of the scale. The total score ranges from 0-176, with 176 representing the worst (total) disability, and 0 no disability. The Part I Score is the sum of the answers to the 4 questions related to Mentation, Behavior and Mood, and ranges from 0-16. The Part II score is the sum of the answers to the 13 questions related to Activities of Daily Living, and ranges from 0-52. The Part III score is the sum of the 27 answers related to Motor Examination, and ranges from 0-108. The Part IV Score is the sum of the answers to the 11 questions related to Complications of Therapy, and ranges from 0-23. The Part IV dyskinesia subscore ranges from 0-12. For each part of the UPDRS, higher scores are associated with more disability. (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionunits on a scale (Mean)
Total scorePart IPart IIPart II (Off-time)Part IIIPart IV subscore of dyskinesia
Levodopa-carbidopa Intestinal Gel-0.600.200.60-2.20-1.402.20

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Degree of Fluctuation (2-12 Hours) After Administration of Oral L/C Tablets and Intra-jejunal Administration of ABT-SLV187

Degree of Fluctuation (calculated as [Cmax - Cmin] / Cavg)) of levodopa, carbidopa, and 3-OMD after administration of the oral L/C tablets (Day -1) and intra-jejunal administration of ABT-SLV187 (Day 21). (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

,
Interventionratio (Mean)
LevodopaCarbidopa3-OMD
Levodopa-carbidopa Intestinal Gel0.380.780.35
Oral Levodopa-carbidopa Tablets2.10.970.48

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Change From Baseline to the End of Treatment in the Japanese Version of Parkinson's Disease Questionnaire 39 (PDQ-39) Total Score and Domain Scores

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients, including Mobility, Activities of Daily Living, Emotional Well-being, Stigma, Social Support, Cognition, Communication, and Bodily Discomfort, as well as a Summary Index Total Score. Scores for each are on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionunits on a scale (Mean)
Total scoreDomain: MobilityDomain: Activities of daily livingDomain: Emotional well-beingDomain: StigmaDomain: Social supportDomain: CognitionDomain: CommunicationDomain: Bodily discomfort
Levodopa-carbidopa Intestinal Gel1.2610.00-0.83-8.331.25-5.00-5.001.678.33

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Clinical Global Impression - Severity (CGI-S) Score at Baseline and Clinical Global Impression - Improvement (CGI-I) Score at Baseline and End of Treatment

The CGI-S is a global assessment by the Investigator of current symptomatology and impact of illness on functioning. The ratings of the CGI-S are as follows: normal, borderline ill, mildly ill, moderately ill, markedly ill, severely ill, and among the most extremely ill. The CGI-I is a global assessment by the Investigator of the change in clinical status since the start of treatment. The CGI-I ratings are as follows: very much improved, much improved, minimally improved, no change, minimally worse, much worse, very much worse. (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionparticipants (Number)
CGI-S, Baseline: NormalCGI-S, Baseline: Borderline illCGI-S, Baseline: Mildly illCGI-S, Baseline: Moderately illCGI-S, Baseline: Markedly illCGI-S, Baseline: Severely illCGI-S, Baseline: Among the most extremely illCGI-S, Endpoint: NormalCGI-S, Endpoint: Borderline illCGI-S, Endpoint: Mildly illCGI-S, Endpoint: Moderately illCGI-S, Endpoint: Markedly illCGI-S, Endpoint: Severely illCGI-S, Endpoint: Among the most extremely illCGI-I: Very much improvedCGI-I: Much improvedCGI-I: Minimally improvedCGI-I: No changeCGI-I: Minimally worseCGI-I: Much worseCGI-I: Very much worse
Levodopa-carbidopa Intestinal Gel000230010031001310000

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Change From Baseline to the End of Treatment in Parkinson's Disease Diary Assessment

For each half hour period during 3 consecutive days prior to each assessment of the diary, participants (and/or their caregivers) entered into a diary whether they were asleep, in the ON motor state or in the OFF motor state in the following 5 grades: asleep, OFF, ON (no dyskinesia [D]), ON with non-troublesome dyskinesia (NTD), ON with troublesome dyskinesia (TD). ON time is when PD symptoms are well controlled by the drug. OFF time is when PD symptoms are not adequately controlled by the drug. Dyskinetic time is time with involuntary muscle movement. The ON or OFF times were calculated as the average of 3 daily times from the diaries. w/o = without, w/ = with (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionhours (Mean)
Daily OFF timeDaily ON time w/o D + time w/ NTDDaily ON time w/o D + time w/ NTD + time w/ TD
Levodopa-carbidopa Intestinal Gel-1.020.761.02

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Time to Reach Peak Plasma Concentration (Tmax) After Administration of Oral Levodopa/Carbidopa (L/C) Tablets and Intra-jejunal Administration of ABT-SLV187

Tmax of levodopa, carbidopa, and its metabolite 3-O-methyldopa (3-OMD) after administration of oral L/C tablets and intra-jejunal administration of ABT-SLV187. (NCT01479127)
Timeframe: Baseline (Day -1): pre-dose; 15, 30, 45, 60 mins post-morning dose; every 30 mins thereafter for 12 hrs. Day 21: pre-dose; 15, 30, 45, 60 mins post-infusion; every 30 mins from hrs 1 to 12 post-infusion; every 2 hrs from 12 to 16 hrs post-infusion.

,
Interventionhours (Mean)
LevodopaCarbidopa3-OMD
Levodopa-carbidopa Intestinal Gel1.04.511
Oral Levodopa-carbidopa Tablets3.07.811

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Number of Participants With Product Quality Complaints (PQC) During the ABT-SLV187 Treatment Period

(NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionparticipants (Number)
Any PQCAny PQC related to an AEAny serious PQCAny PQC leading to discontinuation of study drugAny PQC by pumpAny PQC by NJ-tube insertionAny PQC by adapterAny PQC by cassettesWithout any PQCs
Levodopa-carbidopa Intestinal Gel200002014

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Peak Plasma Concentration (Cmax), Average Plasma Concentration (Cavg), Trough Plasma Concentration (Cmin), and Cmin Within 2 and 12 Hours (Cmin [2-12 Hours]) After Administration of Oral L/C Tablets and Intra-jejunal Administration of ABT-SLV187

Cmax, Cavg, Cmin, and Cmin (2-12 hours) of levodopa, carbidopa, and 3-OMD after administration of the oral L/C tablets (Day -1) and intra-jejunal administration of ABT-SLV187 (Day 21). Cmin values for levodopa and carbidopa during the 16 hours of infusion were observed either at time 0 or 15 min after start of the infusion and were a result of drug washout prior to establishment of infusion. (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

,
Interventionµg/mL (Mean)
Cmax: LevodopaCmax: CarbidopaCmax: 3-OMDCavg: LevodopaCavg: CarbidopaCavg: 3-OMDCmin: LevodopaCmin: CarbidopaCmin: 3-OMDCmin (2-12 hours): LevodopaCmin (2-12 hours):CarbidopaCmin (2-12 hours): 3-OMD
Levodopa-carbidopa Intestinal Gel4.380.27311.72.870.1729.800.0610.0167.782.380.1308.14
Oral Levodopa-carbidopa Tablets5.960.1289.272.370.0797.360.2680.0145.670.7340.0505.72

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Schwab and England Activities of Daily Living Scale at Baseline and End of Treatment

The Schwab and England scale was used to rate the subject's activities of daily living by recording the percentage score, ranging between being completely independent (100%) and totally dependent (10%). (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionunits on a scale (Median)
BaselineEndpoint
Levodopa-carbidopa Intestinal Gel80.080.0

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Number of Participants With Potentially Clinically Significant Urinalysis Results During the ABT-SLV187 Treatment Period

(NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionparticipants (Number)
Low PCS Specific gravity: 1.002High PCS Specific gravity: 1.030Low PCS pH: 4.5High PCS pH: 8.0High PCS Protein: > traceHigh PCS Glucose: > traceHigh PCS Occult blood: > negativeHigh PCS Ketone: > negative
Levodopa-carbidopa Intestinal Gel00010000

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Baseline and Endpoint (End of Treatment) Video Scoring of Unified Parkinson's Disease Rating Scale (UPDRS) Items and Dyskinesia

Participants were video recorded a total of 10 times for 1 to 2 minutes every 60 minutes while performing a standardized sequence of motor tasks. Based on these video recordings, a Video Evaluation Committee consisting of 3 neurologists individually evaluated the video under blinded conditions using the following assessments: Tremor at Rest (UPDRS item #20), Finger Taps (UPDRS #23), Rapid Alternating Movement of Hands (UPDRS #25), Arising from Chair (UPDRS #27), Gait (UPDRS #29), Postural Stability (UPDRS #30), Body Bradykinesia and Hypokinesia (UPDRS #31), and Dyskinesia (evaluated with the Goetz Dyskinesia Rating Scale). The UPDRS score is the sum of the answers to individual questions, each of which are measured on a 5-point scale (0-4), with higher scores associated with more disability. The Goetz Dyskinesia Rating Scale is a 5-point scale of the severity of dyskinesias, from 0 (absent) to 4 (violent dyskinesias). (NCT01479127)
Timeframe: Baseline (Day -1), Endpoint (Day 21)

Interventionunits on a scale (Mean)
Tremor at rest, BaselineTremor at rest, EndpointFinger taps, BaselineFinger taps, EndpointRapid alternating movement of hands, BaselineRapid alternating movement of hands, EndpointArising from chair, BaselineArising from chair, EndpointGait, BaselineGait, EndpointPostural stability, BaselinePostural stability, EndpointBody bradykinesia and hypokinesia, BaselineBody bradykinesia and hypokinesia, EndpointDyskinesia, Baseline
Levodopa-carbidopa Intestinal Gel0.000.000.400.401.000.600.100.000.600.601.601.101.000.800.400.90

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AUC0-12/Dose0-12, AUC0-16/Dose0-16 After Administration of Oral L/C Tablets and Intra-jejunal Administration of ABT-SLV187

AUC0-12/Dose0-12 of levodopa, carbidopa, and 3-OMD after administration of the oral L/C tablets (Day -1) and intra-jejunal administration of ABT-SLV187 (Day 21). AUC0-16/Dose0-16 of levodopa, carbidopa, and 3-OMD after administration of intra-jejunal administration of ABT-SLV187 (Day 21). (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

,
Interventionµg*h/mL/mg (Mean)
AUC0-12/Dose0-12: LevodopaAUC0-12/Dose0-12: CarbidopaAUC0-12/Dose0-12: 3-OMDAUC0-16/Dose0-16: LevodopaAUC0-16/Dose0-16: CarbidopaAUC0-16/Dose0-16: 3-OMD
Levodopa-carbidopa Intestinal Gel0.0320.0080.1130.0350.0080.125
Oral Levodopa-carbidopa Tablets0.0360.0120.112NANANA

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"Mean Change From Baseline to the End of Treatment in Percentage of Ratings in the OFF and Dyskinesia States on the TRS I and the Normal, OFF, and Dyskinesia States on the TRS II"

"Participants were video recorded a total of 10 times for 1 to 2 minutes every 60 minutes while performing a standardized sequence of motor tasks: rest, finger taps, rapid alternating movement of hands, arising from chair and gait, including confirmation of postural stability. Based on these video recordings, a Video Evaluation Committee consisting of 3 neurologists individually evaluated the following Video Assessment and TRS under blinded conditions: Finger Taps, Rapid Alternating Movement of Hands, Arising from Chair, Gait, Body Bradykinesia and Hypokinesia, Dyskinesia for TRS I, with the addition of Tremor at Rest and Postural Stability for TRS II. The average of the 3 neurologists' evaluations was calculated as a percentage of ratings in the Normal state (ie, mild OFF to ON with mild dyskinesia), the Off state (moderate OFF to severe OFF), and the Dyskinesia state (ON with moderate dyskinesia to ON with severe dyskinesia) on the TRS I or II." (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionpercentage of ratings (Mean)
"TRS I OFF state""TRS I Dyskinesia state""TRS II Normal state""TRS II OFF state""TRS II Dyskinesia state"
Levodopa-carbidopa Intestinal Gel-15.330.0014.67-15.330.67

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Ratio of Metabolite 3-OMD to Levodopa (M/P [AUC0-12]) After Administration of Oral L/C Tablets and Intra-jejunal Administration of ABT-SLV187

M/P (AUC0-12) after administration of the oral L/C tablets (Day -1) and intra-jejunal administration of ABT-SLV187 (Day 21). (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

Interventionratio (Mean)
Oral Levodopa-carbidopa Tablets3.11
Levodopa-carbidopa Intestinal Gel3.53

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The Area Under the Concentrations-time Curve From 0 to 12 and 0 to 16 Hours (AUC0-12, AUC0-16) After Administration of Oral L/C Tablets and Intra-jejunal Administration of ABT-SLV187

AUC0-12 and AUC0-16 of levodopa, carbidopa, and 3-OMD after administration of the oral L/C tablets (Day -1) and intra-jejunal administration of ABT-SLV187 (Day 21). (NCT01479127)
Timeframe: Baseline (Day -1), End of ABT-SLV187 Treatment Period (Day 21)

,
Interventionµg*h/mL (Mean)
AUC0-12: LevodopaAUC0-12: CarbidopaAUC0-12: 3-OMDAUC0-16: LevodopaAUC0-16: CarbidopaAUC0-16: 3-OMD
Levodopa-carbidopa Intestinal Gel34.42.0711846.72.80165
Oral Levodopa-carbidopa Tablets28.40.9488.3NANANA

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AUC0-∞ - Area Under the Plasma Concentration-time Curve (AUC) of Levodopa From Time Zero to Infinity

AUC0-∞ - Area under the plasma concentration-time curve (AUC) of levodopa from time zero to infinity. (NCT01519284)
Timeframe: 8 days

Interventionng.h/mL (Mean)
Group 11649
Group 21873
Group 32233
Group 42381
Group 52253

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AUC0-t - Area Under the Plasma Concentration-time Curve (AUC) of Levodopa From Time Zero to the Last Sampling Time at Which the Drug Concentration Was at or Above the Lower Limit of Quantification.

AUC0-t - Area under the plasma concentration-time curve (AUC) of levodopa from time zero to the last sampling time following a single oral administration of Sinemet® 100/25 on Day 8, and 5 mg, 15 mg and 30 mg BIA 9-1067 once-daily (QD), 200 mg entacapone thrice-daily (TID), and placebo, for 8 days (NCT01519284)
Timeframe: 8 days

Interventionng.h/mL (Mean)
Group 11578
Group 21785
Group 32102
Group 42202
Group 52146

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Cmax - Maximum Plasma Concentration of Levodopa

Cmax - Maximum plasma concentration of levodopa following a single oral administration of Sinemet® 100/25 on Day 8, and 5 mg, 15 mg and 30 mg BIA 9-1067 once-daily (QD), 200 mg entacapone thrice-daily (TID), and placebo, for 8 days (NCT01519284)
Timeframe: 8 days

Interventionng/mL (Mean)
Group 11076
Group 21106
Group 3943
Group 4981
Group 5928

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Tmax - Time to Reach Maximum Plasma Concentration of Levodopa

Tmax - Time to Reach maximum plasma concentration of levodopa following a single oral administration of Sinemet® 100/25 on Day 8, and 5 mg, 15 mg and 30 mg BIA 9-1067 once-daily (QD), 200 mg entacapone thrice-daily (TID), and placebo, for 8 days. (NCT01519284)
Timeframe: 8 days

Interventionhours (Median)
Group 10.75
Group 20.75
Group 30.75
Group 40.75
Group 50.75

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Correlation Coefficient Between UPDRS III Score and Independent Components Analysis Network Strength in Left Parietal Cortex.

Correlation coefficient between UPDRS III score and independent components analysis network strength in left parietal cortex. UPDRS III is the Unified Parkinson's Disease Rating Scale composite motor score. (NCT01528592)
Timeframe: 1 hour

Interventionunitless (Number)
On / Off Medication0.5869

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AUC0-t - Area Under the Plasma Concentration-time Curve to Last Measurable Time Point (L-DOPA)

Mean pharmacokinetic parameters of L-beta-3,4-dihydroxyphenylalanine (levodopa) (L-DOPA) (NCT01533077)
Timeframe: pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose.

Interventionng.h/mL (Mean)
Sinemet® 100/25 mg2289
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h2611
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly2459

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Cmax - Maximum Observed Plasma Concentration (3-OMD)

Mean pharmacokinetic parameters of 3-O-methyl-levodopa (3-OMD) (NCT01533077)
Timeframe: Pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose

Interventionng/mL (Mean)
Sinemet® 100/25 mg490
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h336
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly401

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Cmax - Maximum Observed Plasma Concentration (BIA 9-1067)

Mean pharmacokinetic parameters of BIA 9-1067 (NCT01533077)
Timeframe: Pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose.

Interventionng/mL (Mean)
BIA 9-1067 50 mg648
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h625
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly628

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Cmax - Maximum Observed Plasma Concentration (Carbidopa)

Mean pharmacokinetic parameters of carbidopa (NCT01533077)
Timeframe: Pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose.

Interventionng/mL (Mean)
Sinemet® 100/25 mg134
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h136
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly142

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Cmax - Maximum Observed Plasma Concentration (L-DOPA)

Mean pharmacokinetic parameters of L-beta-3,4-dihydroxyphenylalanine (levodopa) (L-DOPA) (NCT01533077)
Timeframe: pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose.

Interventionng/mL (Mean)
Sinemet® 100/25 mg1070
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h1105
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly1198

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AUC0-t - Area Under the Plasma Concentration-time Curve to Last Measurable Time Point (Carbidopa)

Mean pharmacokinetic parameters of carbidopa (NCT01533077)
Timeframe: Pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose.

Interventionng.h/mL (Mean)
Sinemet® 100/25 mg656
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h670
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly732

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AUC0-∞ - Area Under the Plasma Concentration-time Curve Extrapolated to Infinity (3-OMD)

Mean pharmacokinetic parameters of 3-O-methyl-levodopa (3-OMD) (NCT01533077)
Timeframe: Pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose.

Interventionng.h/mL (Mean)
Sinemet® 100/25 mg11193
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h7730
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly89962

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Tmax - Time of Occurrence of Cmax Maximum Observed Plasma Concentration (L-DOPA)

Pharmacokinetic parameters of L-beta-3,4-dihydroxyphenylalanine (levodopa) (L-DOPA). For tmax = time to Cmax values are presented as median with range values. (NCT01533077)
Timeframe: pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose.

Interventionhours (Median)
Sinemet® 100/25 mg1.0
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h1.0
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly0.5

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Tmax - Time to Occurrence of Cmax (3-OMD)

Pharmacokinetic parameters of 3-O-methyl-levodopa (3-OMD). For tmax = time to Cmax values are presented as median with range values. (NCT01533077)
Timeframe: Pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose

Interventionhours (Median)
Sinemet® 100/25 mg6.00
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h5.00
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly5.00

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Tmax - Time to Occurrence of Cmax (BIA 9-1067)

Pharmacokinetic parameters of BIA 9-1067. For tmax = time to Cmax values are presented as median with range values. (NCT01533077)
Timeframe: Pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose.

Interventionhours (Median)
BIA 9-1067 50 mg2.50
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h3.50
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly4.00

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Tmax - Time to Occurrence of Cmax (Carbidopa)

Pharmacokinetic parameters of carbidopa. For tmax = time to Cmax values are presented as median with range values. (NCT01533077)
Timeframe: Pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose.

Interventionhours (Median)
Sinemet® 100/25 mg3.00
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h3.00
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly3.00

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AUC0-∞ - Area Under the Plasma Concentration-time Curve (AUC) From Time Zero to Infinity (L-DOPA)

Mean pharmacokinetic parameters of L-beta-3,4-dihydroxyphenylalanine (levodopa) (L-DOPA) (NCT01533077)
Timeframe: pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose.

Interventionng.h/mL (Mean)
Sinemet® 100/25 mg2397
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h2730
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly2603

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AUC0-∞ - Area Under the Plasma Concentration-time Curve Extrapolated to Infinity (BIA 9-1067)

Mean pharmacokinetic parameters of BIA 9-1067 (NCT01533077)
Timeframe: Pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose.

Interventionng.h/mL (Mean)
BIA 9-1067 50 mg2165
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h2360
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly2678

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AUC0-∞ - Area Under the Plasma Concentration-time Curve Extrapolated to Infinity (Carbidopa)

Pharmacokinetic parameters of carbidopa. For tmax = time to Cmax values are presented as median with range values. (NCT01533077)
Timeframe: Pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose

Interventionng.h/mL (Mean)
Sinemet® 100/25 mg668
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h683
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly745

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AUC0-t - Area Under the Plasma Concentration-time Curve to Last Measurable Time Point (3-OMD)

Mean pharmacokinetic parameters of 3-O-methyl-levodopa (3-OMD) (NCT01533077)
Timeframe: Pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose.

Interventionng.h/mL (Mean)
Sinemet® 100/25 mg10296
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h6940
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly8149

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AUC0-t - Area Under the Plasma Concentration-time Curve to Last Measurable Time Point (BIA 9-1067)

Mean pharmacokinetic parameters of BIA 9-1067 (NCT01533077)
Timeframe: Pre-dose, ½, 1, 1½, 2, 3, 4, 6, 8, 12, 16, 24, 36, 48 and 72 h after dose.

Interventionng.h/mL (Mean)
BIA 9-1067 50 mg2094
BIA 9-1067 50 mg + Sinemet® 100/25 mg Separated 1 h2130
BIA 9-1067 50 mg + Sinemet® 100/25 mg Concomitantly2245

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AUEC0-24 - Area Under the Effect-time Curve (AUEC) to 24 h Post-dose

AUEC0-24 - Area under the effect-time curve (AUEC) to 24 h post-dose. (NCT01533116)
Timeframe: pre-dose and at the following times post-dose: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16 and 24 h

Interventionpmol/mg Hb/h.h (Mean)
Placebo906
5 mg BIA 9-1067454
15 mg BIA 9-1067319
30 mg BIA 9-1067226

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tEmax - Time of Occurrence of Maximum Observed Effect on S-COMT Activity

tEmax - time of occurrence of maximum observed effect on S-COMT activity COMT - Catechol-O-Methyltransferase (NCT01533116)
Timeframe: pre-dose and at the following times post-dose: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16 and 24 h

Interventionhours (Mean)
Placebo8.12
5 mg BIA 9-10672.71
15 mg BIA 9-10674.67
30 mg BIA 9-10673.50

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AUC0-t - Area Under the Plasma Concentration-time Curve to Last Measurable Time Point

AUC0-t - area under the plasma concentration-time curve from time 0 to last observed concentration 3-OMD - 3-O-methyl-dopa - metabolite of L-DOPA (levodopa) AUC0-t (Levodopa) Sinemet® or Prolopa® - following administration of Sinemet® or Prolopa® AUC0-t (3-OMD) Sinemet® or Prolopa® - following administration of Sinemet® or Prolopa® AUC0-t (BIA 9-1067) Sinemet® or Prolopa® - following administration of Sinemet® or Prolopa® (NCT01533116)
Timeframe: pre-dose and at the following times post-dose: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16 and 24 h

,,,
Interventionng.h/mL (Mean)
AUC0-t (Levodopa) Sinemet® 100/25AUC0-t (Levodopa) Prolopa® 100-25AUC0-t (3-OMD) Sinemet® 100/25AUC0-t (3-OMD) Prolopa® 100/25AUC0-t (BIA 9-1067) Sinemet® 100/25AUC0-t (BIA 9-1067) Prolopa® 100/25
15 mg BIA 9-10672952344228363473872836
30 mg BIA 9-1067275340561751262311011185
5 mg BIA 9-10673386411551476205223232
Placebo18372438763111371NANA

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Tmax - Time to Maximum Plasma Concentration

Tmax - time to maximum plasma concentration Tmax (Levodopa) Sinemet® or Prolopa® - following administration of Sinemet® or Prolopa® Tmax (3-OMD) Sinemet® or Prolopa® - following administration of Sinemet® or Prolopa® Tmax (BIA 9-1067) Sinemet® or Prolopa® - following administration of Sinemet® or Prolopa® (NCT01533116)
Timeframe: pre-dose and at the following times post-dose: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16 and 24 h

,,,
Interventionhours (Median)
Tmax (Levodopa) Sinemet® 100/25Tmax (Levodopa) Prolopa® 100-25Tmax (3-OMD) Sinemet® 100/25Tmax (3-OMD) Prolopa® 100/25Tmax (BIA 9-1067) Sinemet® 100/25Tmax (BIA 9-1067) Prolopa® 100/25
15 mg BIA 9-10670.51.06.06.03.02.5
30 mg BIA 9-10671.01.08.04.04.03.0
5 mg BIA 9-10670.751.08.08.01.53.0
Placebo0.51.04.04.0NANA

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Cmax - Maximum Plasma Concentration

Cmax - maximum plasma concentration Cmax (Levodopa) Sinemet® or Prolopa® - following administration of Sinemet® or Prolopa® Cmax (3-OMD) Sinemet® or Prolopa® - following administration of Sinemet® or Prolopa® Cmax (BIA 9-1067) Sinemet® or Prolopa® - following administration of Sinemet® or Prolopa® (NCT01533116)
Timeframe: pre-dose and at the following times post-dose: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16 and 24 h

,,,
Interventionng/mL (Mean)
Cmax (Levodopa) Sinemet® 100/25Cmax (Levodopa) Prolopa® 100-25Cmax (3-OMD) Sinemet® 100/25Cmax (3-OMD) Prolopa® 100/25Cmax (BIA 9-1067) Sinemet® 100/25Cmax (BIA 9-1067) Prolopa® 100/25
15 mg BIA 9-106712001727167206263281
30 mg BIA 9-10679441795115160310370
5 mg BIA 9-10671245210030736075.095.5
Placebo9851704456688NANA

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AUC0-6 - Area Under the Plasma Concentration-time Curve From Time 0 to 6 Hours Post-dose (Day 3)

AUC0-6 - area under the plasma concentration-time curve from time 0 to 6 hours post-dose (ng.h/mL) (NCT01568034)
Timeframe: Day 3

,,,
Interventionng.h/mL (Mean)
AUC0-6 (levodopa)AUC0-6 (3-OMD)AUC0-6 (BIA 9-1067)
BIA 9-1067 100 mg5440222002647
BIA 9-1067 25 mg454522026776
BIA 9-1067 50 mg4580235151694
Placebo395822334NA

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Cmax - Maximum Plasma Concentration Day 3

Cmax - Maximum plasma concentration (ng/mL) (NCT01568034)
Timeframe: Day 3

,,,
Interventionng/ml (Mean)
Cmax (levodopa)Cmax (3-OMD)Cmax (BIA 9-067)
BIA 9-1067 100 mg26574085816
BIA 9-1067 25 mg21124193320
BIA 9-1067 50 mg23664284590
Placebo21033996NA

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Tmax = Time to Cmax Day 3

tmax = time to Cmax (values are median) (NCT01568034)
Timeframe: Day 3

,,,
Interventionhours (Median)
Tmax (levodopa)Tmax (3-OMD)Tmax (BIA 9-067)
BIA 9-1067 100 mg0.51.752.00
BIA 9-1067 25 mg1.01.752.00
BIA 9-1067 50 mg0.52.502.00
Placebo0.52.00NA

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AUC0-6 - Area Under the Plasma Concentration-time Curve (AUC) From Time Zero to to 6 h Postdose (AUC [0-6])

"Baseline period - to be switched respectively to standard-release levodopa/carbidopa 100/25 mg (Sinemet®) or levodopa/benserazide 100/25 mg (Madopar®/Restex®) and to adjust the number of daily doses.~Test Period - After the baseline period during the 21 to 28 days" (NCT01568047)
Timeframe: 28 days

,,,
Interventionng.h/mL (Mean)
AUC0-6 (levodopa) BaselineAUC0-6 (levodopa) TestAUC0-6 (3-OMD) BaselineAUC0-6 (3-OMD) TestAUC0-6 (BIA 9-067) Test
BIA 9-1067 15 mg27344044187486685698
BIA 9-1067 30 mg386262973417790591188
BIA 9-1067 5 mg345140412393414883627
Placebo284125102330121228NA

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Tmax - Time to Observed Maximum Concentration

"Baseline period - to be switched respectively to standard-release levodopa/carbidopa 100/25 mg (Sinemet®) or levodopa/benserazide 100/25 mg (Madopar®/Restex®) and to adjust the number of daily doses.~Test Period - After the baseline period during the 21 to 28 days" (NCT01568047)
Timeframe: 28 days

,,,
Interventionng/mL (Median)
Cmax (levodopa) BaselineCmax (levodopa) TestCmax (3-OMD) BaselineCmax (3-OMD) TestCmax (BIA 9-067) Test
BIA 9-1067 15 mg0.50.752.253.02.0
BIA 9-1067 30 mg1.00.53.03.02.0
BIA 9-1067 5 mg1.01.03.01.52.0
Placebo1.01.02.02.0NA

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Cmax - Observed Maximum Concentration

"Baseline period - to be switched respectively to standard-release levodopa/carbidopa 100/25 mg (Sinemet®) or levodopa/benserazide 100/25 mg (Madopar®/Restex®) and to adjust the number of daily doses.~Test Period - After the baseline period during the 21 to 28 days" (NCT01568047)
Timeframe: 28 days

,,,
Interventionng/mL (Mean)
Cmax (levodopa) BaselineCmax (levodopa) TestCmax (3-OMD) BaselineCmax (3-OMD) TestCmax (BIA 9-067) Test
BIA 9-1067 15 mg1753180635291197233
BIA 9-1067 30 mg1832258462221603480
BIA 9-1067 5 mg1446186846312633240
Placebo1484120347013770NA

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Total UPDRS SCORE (I, II (ON), and III)

"Total UPDRS (Part I, II (ON) and III)~UPDRS I evaluation of mentation, behavior, and mood~UPDRS II self-evaluation of the activities of daily life (ADLs) including speech, swallowing, handwriting, dressing, hygiene, falling, salivating, turning in bed, walking, and cutting food~UPDRS III clinician-scored monitored motor evaluation The UPDRS I, II and III scores and subscores are calculated as the sum of all individual items. If one or two items in a scale are missing, they will be imputed with the mean of the non-missing items of that scale.~Subscale has 0-4 ratings, where 0 = normal, 1 = slight, 2 = mild, 3 = moderate, and 4 = severe~The final cumulative score will range from 0 (no disability) to 199 (total disability)." (NCT01568073)
Timeframe: 14 to 15 weeks

,,,,
Interventionunits on a scale (Mean)
Baseline (Day 0)Endpoint (14 to 15 weeks)Change from Baseline to Endpoint
Entacapone35.429.8-6.0
OPC 25mg40.132.0-7.6
OPC 50mg38.831.5-6.5
OPC 5mg38.231.0-7.6
Placebo37.632.1-5.6

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Efficacy of 3 BIA 9-1067 (5 mg, 25 mg, and 50 mg) Compared With 200 mg of Entacapone or Placebo,

The primary efficacy variable will be the change from baseline in absolute OFF-time at the end of the DB period, This results refers when administered with the existing treatment of L-DOPA plus a DDCI, in patients with PD and end-of-dose motor fluctuations (NCT01568073)
Timeframe: 14 to 15 weeks

Interventionminutes (Mean)
Placebo-56.0
Entacapone-96.3
OPC 5mg-91.3
OPC 25mg-85.9
OPC 50mg-116.8

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Non-motor Symptoms Scale (NMSS)

"The Non-motor Symptoms Scale (NMSS) consists of 30 questions, covering 9 dimensions, whereby each item is scored for severity and frequency: Severity None 0 Mild (symptoms present but causes little distress) 1 Moderate (some distress or disturbance to subject) 2 Severe (major source of distress or disturbance to subject) 3~Frequency Rarely (<1/wk) 1 Often (1/wk) 2 Frequent (several times per week) 3 Very Frequent (daily or all the time) 4~The product of frequency and severity is calculated for each item and each dimension score is defined as the sum of the frequency*severity of the respective items. If frequency or severity of a single item is missing, the domain score will not be calculated. The NMSS total score is defined as the sum of all domain scores.~The NMSS total score is calculated by adding all domain scores (0-360), and lower scores mean less disability." (NCT01568073)
Timeframe: 14 to 15 weeks

,,,,
Interventionunits on a scale (Mean)
BaselineVisit 5Visit 7Endpoint
Entacapone32.127.927.527.5
OPC 25mg39.834.034.634.4
OPC 50mg36.430.233.733.4
OPC 5mg36.130.229.529.5
Placebo38.833.432.332.0

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Parkinson's Disease Sleep Scale (PDSS)

"The Parkinson's disease Sleep Scale (PDSS) is a specific scale for the assessment of sleep disturbances in subjects with PD. The PDSS score is calculated as the sum of all single items. If one or two items are missing, they will be imputed with the mean of the non-missing items. If three or more items are missing, no imputation will be done and the score will be set to missing.~Subscale has 0-10 ratings, where 0 = severe and 10 = normal~The PDSS total score is a sum score of all 15 questions and ranges from 0 to 150, with lower scores meaning more disability." (NCT01568073)
Timeframe: 14 to 15 weeks

,,,,
Interventionunits on a scale (Mean)
BaselineVisit 5Visit 7Endpoint (14 to 15 weeks)
Entacapone100.7102.5103.2102.8
OPC 25mg92.7101.7100.6100.4
OPC 50mg98.0100.2100.7100.9
OPC 5mg97.8103.8102.8102.9
Placebo97.597.697.798.5

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Contrast Sensitivity

Ancillary testing of visual/retinal function with contrast sensitivity testing. Contrast sensitivity testing measures how well the eyes can distinguish between finer and finer light increments compared to dark. This test is a chart with different capital letters organized in horizontal lines. The contrast decreases with each line. The person will move down the chart to determine the least level of contrast they can see. (NCT01663935)
Timeframe: 3 months

Interventionscore on a scale (Mean)
Levodopa/Carbidopa 4mg/kg/Day23.7

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Visual Acuity Change

Change in visual acuity from baseline to 3 months as measured in logMAR by Snellen or Sweep visual evoked potential (SVEP). logMar lower values equals better visual outcome. (NCT01663935)
Timeframe: 3 months

InterventionlogMar (Mean)
Levodopa/Carbidopa 4mg/kg/Day.774

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Change From Baseline in NMSS Mood/Cognition Domain Score

"The NMSS measures the frequency and severity of a range of non-motor symptoms in Parkinson's Disease. It consists of 30 questions grouped into 9 domains: cardiovascular, sleep/fatigue, mood/cognition, perceptual problems/hallucinations, attention/memory, gastro-intestinal tract, urinary, sexual function, and miscellaneous (pain, taste/smell, weight change, excessive sweating). Severity is rated on a scale from 0 (none) to 3 (severe) and frequency is rated on a scale from 1 (rarely) to 4 (very frequent).~Item scores are calculated as the product of severity and frequency; domain scores are obtained by summing the item scores. The NMSS mood/cognition domain score ranges from 0 to 72 with a lower score indicating fewer symptoms; a negative change from baseline indicates improvement in symptoms." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel0.00.5

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Change From Baseline in NMSS Perceptual Problems/Hallucinations Domain Score

"The NMSS measures the frequency and severity of a range of non-motor symptoms in Parkinson's Disease. It consists of 30 questions grouped into 9 domains: cardiovascular, sleep/fatigue, mood/cognition, perceptual problems/hallucinations, attention/memory, gastro-intestinal tract, urinary, sexual function, and miscellaneous (pain, taste/smell, weight change, excessive sweating). Severity is rated on a scale from 0 (none) to 3 (severe) and frequency is rated on a scale from 1 (rarely) to 4 (very frequent).~Item scores are calculated as the product of severity and frequency; domain scores are obtained by summing the item scores. The NMSS perceptual problems/hallucinations domain score ranges from 0 to 36 with a lower score indicating fewer symptoms; a negative change from baseline indicates improvement in symptoms." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-0.50.4

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Change From Baseline in NMSS Sexual Function Domain Score

"The NMSS measures the frequency and severity of a range of non-motor symptoms in Parkinson's Disease. It consists of 30 questions grouped into 9 domains: cardiovascular, sleep/fatigue, mood/cognition, perceptual problems/hallucinations, attention/memory, gastro-intestinal tract, urinary, sexual function, and miscellaneous (pain, taste/smell, weight change, excessive sweating). Severity is rated on a scale from 0 (none) to 3 (severe) and frequency is rated on a scale from 1 (rarely) to 4 (very frequent).~Item scores are calculated as the product of severity and frequency; domain scores are obtained by summing the item scores. The NMSS sexual function domain score ranges from 0 to 24 with a lower score indicating fewer symptoms; a negative change from baseline indicates improvement in symptoms." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-1.8-1.1

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Change From Baseline in NMSS Sleep/Fatigue Domain Score

"The NMSS measures the frequency and severity of a range of non-motor symptoms in Parkinson's Disease. It consists of 30 questions grouped into 9 domains: cardiovascular, sleep/fatigue, mood/cognition, perceptual problems/hallucinations, attention/memory, gastro-intestinal tract, urinary, sexual function, and miscellaneous (pain, taste/smell, weight change, excessive sweating). Severity is rated on a scale from 0 (none) to 3 (severe) and frequency is rated on a scale from 1 (rarely) to 4 (very frequent).~Item scores are calculated as the product of severity and frequency; domain scores are obtained by summing the item scores. The NMSS sleep/fatigue domain score ranges from 0 to 48 with a lower score indicating fewer symptoms; a negative change from baseline indicates improvement in symptoms." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-6.0-5.4

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Change From Baseline in NMSS Urinary Domain Score

"The NMSS measures the frequency and severity of a range of non-motor symptoms in Parkinson's Disease. It consists of 30 questions grouped into 9 domains: cardiovascular, sleep/fatigue, mood/cognition, perceptual problems/hallucinations, attention/memory, gastro-intestinal tract, urinary, sexual function, and miscellaneous (pain, taste/smell, weight change, excessive sweating). Severity is rated on a scale from 0 (none) to 3 (severe) and frequency is rated on a scale from 1 (rarely) to 4 (very frequent).~Item scores are calculated as the product of severity and frequency; domain scores are obtained by summing the item scores. The NMSS urinary domain score ranges from 0 to 36 with a lower score indicating fewer symptoms; a negative change from baseline indicates improvement in symptoms." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-2.20.1

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Change From Baseline in NMSS Gastrointestinal Tract Domain Score

"The NMSS measures the frequency and severity of a range of non-motor symptoms in Parkinson's Disease. It consists of 30 questions grouped into 9 domains: cardiovascular, sleep/fatigue, mood/cognition, perceptual problems/hallucinations, attention/memory, gastro-intestinal tract, urinary, sexual function, and miscellaneous (pain, taste/smell, weight change, excessive sweating). Severity is rated on a scale from 0 (none) to 3 (severe) and frequency is rated on a scale from 1 (rarely) to 4 (very frequent).~Item scores are calculated as the product of severity and frequency; domain scores are obtained by summing the item scores. The NMSS gastrointestinal tract domain score ranges from 0 to 36 with a lower score indicating fewer symptoms; a negative change from baseline indicates improvement in symptoms." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-2.0-1.9

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Change From Baseline in Parkinson's Disease Questionnaire-39 Item (PDQ-39) Summary Index

"The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing eight domains of health (mobility [10 items], activities of daily living [six items], emotional wellbeing [six items], stigma [four items], communication [three items] and bodily discomfort [three items]) which subjects consider to be adversely affected by the disease. Each item is scored on the following 5-point scale: 0 = Never, 1 = Occasionally, 2 = Sometimes, 3 = Often, 4 = Always (or cannot do at all, if applicable).~The PDQ-39 Summary Index (PDQ-SI) is the sum of all answers divided by the highest score possible (i.e., number of answers multiplied by 4) which is multiplied by 100 to put the score on a 0 - 100 scale where lower scores indicate a better perceived health status and higher scores are associated with the more severe symptoms of the disease such as tremors and stiffness." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-11.2-10.2

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Change From Baseline in PDQ-39 Activities of Daily Living Domain Score

"The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing eight domains of health (mobility [10 items], activities of daily living [six items], emotional wellbeing [six items], stigma [four items], communication [three items] and bodily discomfort [three items]) which subjects consider to be adversely affected by the disease. Each item is scored on the following 5-point scale: 0 = Never, 1 = Occasionally, 2 = Sometimes, 3 = Often, 4 = Always (or cannot do at all, if applicable).~Domain scores are calculated by summing the answers to the questions in the domain, dividing by the highest score possible and then multiplying by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status and higher scores are associated with the more severe symptoms of the disease such as tremors and stiffness." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-12.1-11.9

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Change From Baseline in PDQ-39 Bodily Discomfort Domain Score

"The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing eight domains of health (mobility [10 items], activities of daily living [six items], emotional wellbeing [six items], stigma [four items], communication [three items] and bodily discomfort [three items]) which subjects consider to be adversely affected by the disease. Each item is scored on the following 5-point scale: 0 = Never, 1 = Occasionally, 2 = Sometimes, 3 = Often, 4 = Always (or cannot do at all, if applicable).~Domain scores are calculated by summing the answers to the questions in the domain, dividing by the highest score possible and then multiplying by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status and higher scores are associated with the more severe symptoms of the disease such as tremors and stiffness." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-9.6-3.8

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Change From Baseline in PDQ-39 Cognition Domain Score

"The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing eight domains of health (mobility [10 items], activities of daily living [six items], emotional wellbeing [six items], stigma [four items], communication [three items] and bodily discomfort [three items]) which subjects consider to be adversely affected by the disease. Each item is scored on the following 5-point scale: 0 = Never, 1 = Occasionally, 2 = Sometimes, 3 = Often, 4 = Always (or cannot do at all, if applicable).~Domain scores are calculated by summing the answers to the questions in the domain, dividing by the highest score possible and then multiplying by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status and higher scores are associated with the more severe symptoms of the disease such as tremors and stiffness." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-8.4-7.3

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Change From Baseline in PDQ-39 Communication Domain Score

"The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing eight domains of health (mobility [10 items], activities of daily living [six items], emotional wellbeing [six items], stigma [four items], communication [three items] and bodily discomfort [three items]) which subjects consider to be adversely affected by the disease. Each item is scored on the following 5-point scale: 0 = Never, 1 = Occasionally, 2 = Sometimes, 3 = Often, 4 = Always (or cannot do at all, if applicable).~Domain scores are calculated by summing the answers to the questions in the domain, dividing by the highest score possible and then multiplying by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status and higher scores are associated with the more severe symptoms of the disease such as tremors and stiffness." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-13.0-10.8

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Percentage of Participants With a Patient Global Impression of Change (PGIC) Response of Improved

"The PGIC is a 7-point response scale. Participants were asked to rate their change in status using the following 7-point scale:~1 = Very much improved, 2 = Much improved, 3 = Minimally improved, 4 = No change, 5 = Minimally worse, 6 = Much worse, 7 = Very much worse.~The responses of Very much improved, Much improved and Minimally improved on the PGIC were used to define responders." (NCT01736176)
Timeframe: Week 12 and Week 60

Interventionpercentage of participants (Number)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel78.971.1

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Change From Baseline in PDQ-39 Emotional Well-Being Domain Score

"The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing eight domains of health (mobility [10 items], activities of daily living [six items], emotional wellbeing [six items], stigma [four items], communication [three items] and bodily discomfort [three items]) which subjects consider to be adversely affected by the disease. Each item is scored on the following 5-point scale: 0 = Never, 1 = Occasionally, 2 = Sometimes, 3 = Often, 4 = Always (or cannot do at all, if applicable).~Domain scores are calculated by summing the answers to the questions in the domain, dividing by the highest score possible and then multiplying by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status and higher scores are associated with the more severe symptoms of the disease such as tremors and stiffness." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-4.9-6.6

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Change From Baseline in PDQ-39 Mobility Domain Score

"The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing eight domains of health (mobility [10 items], activities of daily living [six items], emotional wellbeing [six items], stigma [four items], communication [three items] and bodily discomfort [three items]) which subjects consider to be adversely affected by the disease. Each item is scored on the following 5-point scale: 0 = Never, 1 = Occasionally, 2 = Sometimes, 3 = Often, 4 = Always (or cannot do at all, if applicable).~Domain scores are calculated by summing the answers to the questions in the domain, dividing by the highest score possible and then multiplying by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status and higher scores are associated with the more severe symptoms of the disease such as tremors and stiffness." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-18.5-19.4

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Change From Baseline in PDQ-39 Social Support Domain Score

"The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing eight domains of health (mobility [10 items], activities of daily living [six items], emotional wellbeing [six items], stigma [four items], communication [three items] and bodily discomfort [three items]) which subjects consider to be adversely affected by the disease. Each item is scored on the following 5-point scale: 0 = Never, 1 = Occasionally, 2 = Sometimes, 3 = Often, 4 = Always (or cannot do at all, if applicable).~Domain scores are calculated by summing the answers to the questions in the domain, dividing by the highest score possible and then multiplying by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status and higher scores are associated with the more severe symptoms of the disease such as tremors and stiffness." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel1.63.3

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Change From Baseline in PDQ-39 Stigma Domain Score

"The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing eight domains of health (mobility [10 items], activities of daily living [six items], emotional wellbeing [six items], stigma [four items], communication [three items] and bodily discomfort [three items]) which subjects consider to be adversely affected by the disease. Each item is scored on the following 5-point scale: 0 = Never, 1 = Occasionally, 2 = Sometimes, 3 = Often, 4 = Always (or cannot do at all, if applicable).~Domain scores are calculated by summing the answers to the questions in the domain, dividing by the highest score possible and then multiplying by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status and higher scores are associated with the more severe symptoms of the disease such as tremors and stiffness." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-9.5-5.4

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Change From Baseline in UPDRS Dyskinesia Items Score

"The UPDRS is an investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The UPDRS assessment was performed by an approved, trained rater.~The UPDRS was made up of the following sections:~Part I - Mentation, Behavior, and Mood~Part II - Activities of Daily Living~Part III - Motor Examination~Part IV - Complications of Therapy (including dyskinesias)~Part V - Modified Hoehn and Yahr Staging~The dyskinesia items score includes questions 32, 33 and 34 from the complications of therapy section of the UPDRS which address dyskinesia duration, disability, and pain. Each question was answered on a scale from 0 (Normal) to 4 (Severe); the UPDRS dyskinesia items score was computed as the sum of these items and ranged from 0 (not affected) to 12 (most severely affected)." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-1.1-0.6

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Change From Baseline in UPDRS Part II: Activities of Daily Living (ADL) Score

"The Unified Parkinson's Disease Rating Scale (UPDRS) is an investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The UPDRS assessment was performed by an approved, trained rater.~The UPDRS was made up of the following sections:~Part I - Mentation, Behavior, and Mood~Part II - Activities of Daily Living~Part III - Motor Examination~Part IV - Complications of Therapy (including dyskinesias)~Part V - Modified Hoehn and Yahr Staging~The activities of daily living score includes 13 items addressing speech, salivation, swallowing, handwriting, cutting food, dressing, hygiene, turning in bed, falling, freezing, walking, tremor, and sensory complaints. Each question is answered on a scale from 0 (Normal) to 4 (Severe). The UPDRS Part II: activities of daily living score was computed as the sum of these items and ranged from 0 (not affected) to 52 (most severely affected)." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-5.5-4.7

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Change From Baseline in UPDRS Part III: Motor Examination Score

"The UPDRS is an investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The UPDRS assessment was performed by an approved, trained rater.~The UPDRS was made up of the following sections:~Part I - Mentation, Behavior, and Mood~Part II - Activities of Daily Living~Part III - Motor Examination~Part IV - Complications of Therapy (including dyskinesias)~Part V - Modified Hoehn and Yahr Staging~The motor examination score includes 17 items addressing speech, facial expression, tremor at rest, action tremor, rigidity, finger taps, hand movements, hand pronation and supination, leg agility, arising from chair, posture, gait, postural stability, and body bradykinesia. Each question is answered on a scale from 0 (Normal) to 4 (Severe), some items include multiple grades for each extremity. The UPDRS Part III: motor examination score was computed as the sum of these items and ranged from 0 (not affected) to 108 (most severely affected)." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-5.6-3.6

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Change From Baseline in UPDRS Part IV: Complications of Therapy Score

"The UPDRS is an investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The UPDRS assessment was performed by an approved, trained rater.~The UPDRS was made up of the following sections:~Part I - Mentation, Behavior, and Mood~Part II - Activities of Daily Living~Part III - Motor Examination~Part IV - Complications of Therapy (including dyskinesias)~Part V - Modified Hoehn and Yahr Staging~The complications of therapy section includes 11 items addressing dyskinesia duration, disability, and pain, early morning dystonia, offs-predictable, offs-unpredictable, offs-sudden, offs-duration, anorexia-nausea-vomiting, sleep disturbance, and symptomatic orthostasis. Four questions are answered on a scale from 0 (Normal) to 4 (Severe) and seven on a binary scale where 0=No and 1=Yes. The UPDRS Part IV: complications of therapy score was computed as the sum of these items and ranged from 0 (not affected) to 23 (most severely affected)." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-3.5-2.9

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Change From Baseline in UPDRS Part V: Modified Hoehn and Yahr Staging Score

"The UPDRS is an investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The UPDRS assessment was performed by an approved, trained rater.~The UPDRS was made up of the following sections:~Part I - Mentation, Behavior, and Mood~Part II - Activities of Daily Living~Part III - Motor Examination~Part IV - Complications of Therapy (including dyskinesias)~Part V - Modified Hoehn and Yahr Staging~The modified Hoehn and Yahr scale is as follows:~Stage 0: No signs of disease~Stage 1.0: Symptoms are very mild; unilateral involvement only~Stage 1.5: Unilateral and axial involvement~Stage 2: Bilateral involvement without impairment of balance~Stage 2.5: Mild bilateral disease with recovery on pull test~Stage 3: Mild to moderate bilateral disease; some postural instability; physically independent~Stage 4: Severe disability; still able to walk or stand unassisted~Stage 5: Wheelchair bound or bedridden unless aided" (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-0.2-0.2

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Number of Participants Who Used Healthcare Resources During the First 4 Weeks

"Use of healthcare resources was assessed by the investigator using the Health Resource Utilization Questionnaire (HRUQ), a questionnaire developed by the Sponsor regarding the use of healthcare resources due to the participant's Parkinson's disease. The Week 4 version of the questionnaire addressed the following questions during the first four weeks after the PEG-J procedure:~Has the subject had a visit to an emergency room?~Has the subject had a visit to an urgent care?~Has the subject had an outpatient visit to a neurologist?~Has the subject had an outpatient visit to a gastroenterologist, surgeon, or interventional radiologist?~Has the subject had an outpatient visit to a primary care physician?~Has the subject called the nursing support line?~Has the subject called a physician?" (NCT01736176)
Timeframe: Weeks 1-4

InterventionParticipants (Count of Participants)
Q1. Emergency Room VisitQ2. Urgent Care VisitQ3. Neurologist VisitQ4. Gastroenterologist, Surgeon, Radiologist VisitQ5. Primary Care Physician VisitQ6. Called Nursing Support LineQ7. Called Physician
Levodopa-Carbidopa Intestinal Gel306118913

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"Change From Baseline in Mean Daily Normalized Off Time Based on Parkinson's Disease Diary"

"The Parkinson's Disease Diary was completed by the participant for 3 consecutive days prior to each visit for the full 24 hours of each day. Participants recorded whether they had been On, Off, or Asleep and the severity of their dyskinesias (troublesome or not troublesome) for each 30-minute period during their normal waking time and upon awakening from time asleep.~Off time was defined as time when medication has worn off and was no longer providing benefit with regard to mobility, slowness, and stiffness.~Parkinson's Disease Diary times were normalized to a 16-hour waking time to account for variation in participants' sleep time. Normalized PD Diary times at a given visit were calculated as the average normalized time from the PD Diary for the 3 days prior to the visit." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionhours (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-4.1-4.9

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Number of Participants Who Used Healthcare Resources Through Week 60

"Use of healthcare resources was assessed by the investigator using the Health Resource Utilization Questionnaire (HRUQ), a questionnaire developed by the Sponsor regarding the use of healthcare resources due to the participant's Parkinson's disease. The standard version of the questionnaire addressed the following questions over the last 3 months:~Has the subject had a visit to an emergency room?~Has the subject had an outpatient visit to any of the following healthcare providers?~Has the subject been visited in his or her place of residence by a health care professional?~Has the subject received assistance from either of the following for their Parkinson's disease in their home?~Has the subject needed to contact either of the following for immediate assistance related to their Parkinson's disease?~Have family members or friends had to miss any paid work due to the subject's Parkinson's disease?~Has the subject fallen during the past month?" (NCT01736176)
Timeframe: Week 60

InterventionParticipants (Count of Participants)
Q1. Emergency Room VisitQ2. Visit to Primary Care PhysicianQ2. Visit to GastroenterologistQ2. Visit to Interventional RadiologistQ2. Visit to SurgeonQ2. Visit to CardiologistQ2. Visit to EndocrinologistQ2. Visit to ImmunologistQ2. Visit to InternistQ2. Visit to PsychiatristQ2. Visit to UrologistQ2. Visit to PsychologistQ2. Visit to Social WorkerQ2. Visit to Other Healthcare ProviderQ3. Visited by PhysicianQ3. Visited by Nurse or Nurse PractitionerQ3. Visited by Physical or Occupational TherapistQ4. Received Unpaid Care From Family/FriendQ4. Received Care From Paid CaregiverQ5. Called 911Q5. Called Family/FriendQ6. Family/Friends Missed WorkQ7. Fall During Past Month
Levodopa-Carbidopa Intestinal Gel118311100102121001010201210

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Number of Participants With Adverse Events

"Adverse events (AEs) related to treatment are those the investigator determined as having a reasonable possibility being related to study drug based on evidence to suggest a causal relationship between the study drug and the adverse event.~A severe AE was defined as an adverse event that caused considerable interference with the participant's usual activities and might be incapacitating or life-threatening.~Serious AEs were defined as those that were life-threatening or resulted in death, hospitalization or prolongation of hospitalization, a congenital anomaly, persistent or significant disability/incapacity, or important medical events requiring medical or surgical intervention to prevent a serious outcome." (NCT01736176)
Timeframe: Weeks 1-4 and Overall (from Week 1 through 30 days after the end of the LCIG Treatment Period; median duration of LCIG device exposure was 428 days)

,
InterventionParticipants (Count of Participants)
Any adverse eventAE related to LCIGAE related to oral LCSevere adverse eventSerious adverse eventAE leading to premature discontinuationGastrointestinal (GI) adverse eventAdverse event other than GIFatal adverse event
Overall37351158528371
Week 1-42826413122210

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Change From Baseline in Cambridge Neuropsychological Test Automated Battery (CANTAB) Spatial Working Memory Between Errors Score at Week 12

CANTAB is a computer-based test of the participant's ability to retain spatial information and to manipulate remembered items in working memory. The Spatial Working Memory module requires that subjects find a blue token in a series of displayed boxes and use these to fill up an empty column, while not returning to boxes where a blue token has been previously found. The between errors score is the number of times the participant revisited a box in which a token was previously found; errors are calculated for 4-, 6-, and 8-box trials. Higher numbers indicate poorer performance. (NCT01736176)
Timeframe: Baseline and Week 12

Interventionerrors (Mean)
Levodopa-Carbidopa Intestinal Gel-0.6

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Change From Baseline in CANTAB Spatial Working Memory Strategy Score at Week 12

CANTAB is a computer-based test of the participant's ability to retain spatial information and to manipulate remembered items in working memory. The Spatial Working Memory module requires that subjects find a blue token in a series of displayed boxes and use these to fill up an empty column, while not returning to boxes where a blue token has been previously found. The Strategy score represents the number of times a participant begins a search with the same box for 6- and 8-box problems. Minimum score is 8 and maximum score is 56. Higher numbers indicate poorer performance. (NCT01736176)
Timeframe: Baseline and Week 12

Interventionunits on a scale (Mean)
Levodopa-Carbidopa Intestinal Gel0.8

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Change From Baseline to Week 12 in the Non-Motor Symptom Scale (NMSS) Total Score

"The NMSS measures the frequency and severity of a range of non-motor symptoms in Parkinson's Disease. It consists of 30 questions grouped into 9 domains: cardiovascular, sleep/fatigue, mood/cognition, perceptual problems/hallucinations, attention/memory, gastro-intestinal tract, urinary, sexual function, and miscellaneous (pain, taste/smell, weight change, excessive sweating). Severity is rated on a scale from 0 (none) to 3 (severe) and frequency is rated on a scale from 1 (rarely) to 4 (very frequent).~Item scores are calculated as the product of severity and frequency; the total score is obtained by summing the item scores. The NMSS total score ranges from 0 to 360 with a lower score indicating fewer symptoms; a negative change from baseline indicates improvement in symptoms." (NCT01736176)
Timeframe: Baseline and Week 12

Interventionunits on a scale (Least Squares Mean)
Levodopa-Carbidopa Intestinal Gel-17.6

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Change From Baseline to Week 60 in the Non-Motor Symptom Scale (NMSS) Total Score

"The NMSS measures the frequency and severity of a range of non-motor symptoms in Parkinson's Disease. It consists of 30 questions grouped into 9 domains: cardiovascular, sleep/fatigue, mood/cognition, perceptual problems/hallucinations, attention/memory, gastro-intestinal tract, urinary, sexual function, and miscellaneous (pain, taste/smell, weight change, excessive sweating). Severity is rated on a scale from 0 (none) to 3 (severe) and frequency is rated on a scale from 1 (rarely) to 4 (very frequent).~Item scores are calculated as the product of severity and frequency; the total score is obtained by summing the item scores. The NMSS total score ranges from 0 to 360 with a lower score indicating fewer symptoms; a negative change from baseline indicates improvement in symptoms." (NCT01736176)
Timeframe: Baseline and Week 60

Interventionunits on a scale (Least Squares Mean)
Levodopa-Carbidopa Intestinal Gel-11.8

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Change From Baseline in UPDRS Part I: Mentation, Behavior, and Mood Score

"The Unified Parkinson's Disease Rating Scale (UPDRS) is an investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The UPDRS assessment was performed by an approved, trained rater.~The UPDRS was made up of the following sections:~Part I - Mentation, Behavior, and Mood~Part II - Activities of Daily Living~Part III - Motor Examination~Part IV - Complications of Therapy (including dyskinesias)~Part V - Modified Hoehn and Yahr Staging~The mentation, behavior, and mood score includes 4 items addressing intellectual impairment, thought disorder, motivation/initiative, and depression. Each question is answered on a scale from 0 (None) to 4 (Severe). The UPDRS Part I: mentation, behavior, and mood score was computed as the sum of these items and ranged from 0 (not affected) to 16 (most severely affected)." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-0.3-0.1

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"Change From Baseline in Mean Daily Normalized On Time Without Troublesome Dyskinesia Based on PD Diary"

"The PD Diary was completed by the participant for 3 consecutive days prior to each visit. Participants recorded whether they had been On, Off, or Asleep and the severity of their dyskinesias (troublesome or not troublesome) for each 30-minute period during their normal waking time and upon awakening from sleep.~On was defined as time when medication was providing benefit with regard to mobility, slowness, and stiffness. On time without troublesome dyskinesia is a composite of On time without dyskinesia (involuntary twisting, turning movements which are an effect of medication) plus On time with non-troublesome dyskinesia (dyskinesia that does not interfere with function or cause meaningful discomfort).~PD Diary times were normalized to a 16-hour waking time to account for variation in participants' sleep time. Normalized PD Diary times at a given visit were calculated as the average normalized time from the PD Diary for the 3 days prior to the visit." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionhours (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel3.74.3

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Change From Baseline for Unified Parkinson's Disease Rating Scale (UPDRS) Total Score

"The Unified Parkinson's Disease Rating Scale (UPDRS) is an investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The UPDRS assessment was performed by an approved, trained rater.~The UPDRS was made up of the following sections:~Part I - Mentation, Behavior, and Mood~Part II - Activities of Daily Living~Part III - Motor Examination~Part IV - Complications of Therapy (including dyskinesias)~Part V - Modified Hoehn and Yahr Staging~The Total UPDRS score includes 31 items contributing to three subscales: (I) Mentation, Behavior, and Mood; (II) Activities of Daily Living; and (III) Motor Examination. Each question is answered on a scale from 0 (None) to 4 (Severe); Some questions require multiple grades assigned to each extremity. The UPDRS Total score was computed as the sum of these 3 UPDRS subscales and ranged from 0 to 176, with 176 representing the worst (total) disability, and 0 no disability." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-11.4-7.7

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Change From Baseline in Controlled Oral Word Association Test (COWAT) Verbal Fluency Scores at Week 60

"Letter fluency was assessed using a paper and pen test, in which participants were asked to generate as many words as possible in 60 seconds, starting with the letters F, A, or S.~The COWAT All Letters score is the number of words recalled in all post-baseline assessments, regardless of letter used.~The COWAT Baseline Letter score is the number of words recalled in post-baseline assessments that used the same letter as at Baseline." (NCT01736176)
Timeframe: Baseline and Week 60

Interventionwords (Mean)
All Letters ScoreBaseline Letter Score
Levodopa-Carbidopa Intestinal Gel-0.5-1.8

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Change From Baseline in NMSS Attention/Memory Domain Score

"The NMSS measures the frequency and severity of a range of non-motor symptoms in Parkinson's Disease. It consists of 30 questions grouped into 9 domains: cardiovascular, sleep/fatigue, mood/cognition, perceptual problems/hallucinations, attention/memory, gastro-intestinal tract, urinary, sexual function, and miscellaneous (pain, taste/smell, weight change, excessive sweating). Severity is rated on a scale from 0 (none) to 3 (severe) and frequency is rated on a scale from 1 (rarely) to 4 (very frequent).~Item scores are calculated as the product of severity and frequency; domain scores are obtained by summing the item scores. The NMSS attention/memory domain score ranges from 0 to 36 with a lower score indicating fewer symptoms; a negative change from baseline indicates improvement in symptoms." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-2.1-2.2

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Change From Baseline in NMSS Cardiovascular Domain Score

"The NMSS measures the frequency and severity of a range of non-motor symptoms in Parkinson's Disease. It consists of 30 questions grouped into 9 domains: cardiovascular, sleep/fatigue, mood/cognition, perceptual problems/hallucinations, attention/memory, gastro-intestinal tract, urinary, sexual function, and miscellaneous (pain, taste/smell, weight change, excessive sweating). Severity is rated on a scale from 0 (none) to 3 (severe) and frequency is rated on a scale from 1 (rarely) to 4 (very frequent).~Item scores are calculated as the product of severity and frequency; domain scores are obtained by summing the item scores. The NMSS cardiovascular including falls domain score ranges from 0 to 24 with a lower score indicating fewer symptoms; a negative change from baseline indicates improvement in symptoms." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-0.20.5

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Change From Baseline in NMSS Miscellaneous Domain Score

"The NMSS measures the frequency and severity of a range of non-motor symptoms in Parkinson's Disease. It consists of 30 questions grouped into 9 domains: cardiovascular, sleep/fatigue, mood/cognition, perceptual problems/hallucinations, attention/memory, gastro-intestinal tract, urinary, sexual function, and miscellaneous (pain, taste/smell, weight change, excessive sweating). Severity is rated on a scale from 0 (none) to 3 (severe) and frequency is rated on a scale from 1 (rarely) to 4 (very frequent).~Item scores are calculated as the product of severity and frequency; domain scores are obtained by summing the item scores. The NMSS miscellaneous domain score ranges from 0 to 48 with a lower score indicating fewer symptoms; a negative change from baseline indicates improvement in symptoms." (NCT01736176)
Timeframe: Baseline and Week 12 and Week 60

Interventionunits on a scale (Least Squares Mean)
Week 12Week 60
Levodopa-Carbidopa Intestinal Gel-3.4-3.4

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"Change From Baseline in Average Daily Time to on (TTO) by Subject Diary."

"Patients will record daily time to on or TTO following their regularly scheduled first L-Dopa dose in the baseline period for 7 consecutive days. Following initiation on Apokyn therapy, patients will inject Apokyn at their regularly scheduled L-Dopa time (L-Dopa dosing will be delayed by 40 minutes following Apokyn injection) and record time to on or TTO from the injection. Time to on for both periods will be recorded in a standardized subject diary. Daily TTO for the baseline period will be averaged for each subject and compared to the daily TTO for the same subject during the treatment period to assess APOKYN's effect on TTO." (NCT01770145)
Timeframe: L-Dopa Baseline Days 1-7 and APOKYN Treatment Days 1-7

Interventionminutes (Mean)
BaselineTreatment PeriodChange from Baseline
APOKYN60.8623.7237.14

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Number of Participants With 20% Reduction in Pain on the NRS Pain Intensity Scale

Primary outcome is 20% reduction in pain intensity at p<0.1 based on pain ratings during 1 week prior to treatment and last week of study participation (at ~6months) (NCT01951105)
Timeframe: 6 months

InterventionParticipants (Count of Participants)
Observation5
Carbidopa/Levodopa & Naproxen15
Placebo & Naproxen21

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Percent of Residual Pain Stratified by Gender for Individuals Receiving Treatment

Residual pain is computed based on pain ratings from the week prior to treatment and last week of study participation (at ~6months) (NCT01951105)
Timeframe: 6 months

Intervention% residual pain (Mean)
Carbidopa/Levodopa & Naproxen (Males)62.97
Carbidopa/Levodopa & Naproxen (Females)9.48
Placebo & Naproxen (Males)37.96
Placebo & Naproxen (Females)45.23
Observation (Males)85.55
Observation (Females)48.84

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Unified Parkinson's Disease Rating Scale (UPDRS) Part IIl Score: Change From Baseline To The Final PEG-J Visit

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part III score is the sum of the 27 answers provided to the 14 Part III questions, each of which are measured on a 5-point scale (0-4). The Part III score ranges from 0-108 and higher scores are associated with more disability. (NCT01960842)
Timeframe: Baseline (end of screening period) and Final PEG-J Visit (up to week 12)

Interventionunits on a scale (Mean)
BaselineFinal PEG-J visit
Levodopa-Carbidopa Intestinal Gel (LCIG)16.514.3

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"Average Daily Normalized Off Time: Change From Baseline To The Final PEG-J Visit"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. Negative change from baseline for off time indicates improvement." (NCT01960842)
Timeframe: Baseline (end of screening period) and Final PEG-J Visit (up to week 12)

Interventionhours (Mean)
BaselineLast PEG-J visit
Levodopa-Carbidopa Intestinal Gel (LCIG)7.372.72

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Patient Global Impression of Change (PGI-C) Score at the Final PEG-J Visit

"The PGI-C is a 7-point response scale. The subjects were to rate their change in status from Screening Visit 1 using the following 7-point scale: 1 = Very much improved, 2 = Much improved, 3 = Minimally improved, 4 = No change, 5 = Minimally worse, 6 = Much worse, 7 = Very much worse. The responses of Minimally improved, Much improved, and Very much improved on the PGI-C were used to define responders." (NCT01960842)
Timeframe: Final PEG-J Visit (up to week 12)

Interventionunits on a scale (Mean)
Levodopa-Carbidopa Intestinal Gel (LCIG)2.0

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"Average Daily Normalized Off Time at Baseline and Each Visit: Change From Baseline To The Final PEG-J Visit"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. n= the number of participants with available data at each time point." (NCT01960842)
Timeframe: Baseline (end of screening period) and Weeks 2, 4, 6, 8, 10, and 12

Interventionhours (Mean)
Baseline (n=29)Week 2 (n=29)Week 4 (n=29)Week 6 (n=29)Week 8 (n=27)Week 10 (n=27)Week 12 (n=27)
Levodopa-Carbidopa Intestinal Gel (LCIG)7.373.173.682.612.772.472.45

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"Average Daily Normalized Off Time Excluding Subjects Who Did Not Receive LCIG During the Entire PEG-J Period: Change From Baseline To The Final PEG-J Visit"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. Negative change from baseline for off time indicates improvement." (NCT01960842)
Timeframe: Baseline (end of screening period) and Final PEG-J Visit (up to week 12)

Interventionhours (Mean)
BaselineLast PEG-J visit
Levodopa-Carbidopa Intestinal Gel (LCIG)7.322.67

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"Average Daily Normalized On Time With Troublesome Dyskinesia: Change From Baseline To The Final PEG-J Visit"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. Positive change from baseline for on time indicates improvement." (NCT01960842)
Timeframe: Baseline (end of screening period) and Final PEG-J Visit (up to week 12)

Interventionhours (Mean)
BaselineLast PEG-J visit
Levodopa-Carbidopa Intestinal Gel (LCIG)1.120.12

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"Average Daily Normalized On Time Without Troublesome Dyskinesia: Change From Baseline To The Final PEG-J Visit"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. Positive change from baseline for on time indicates improvement." (NCT01960842)
Timeframe: Baseline (end of screening period) and Final PEG-J Visit (up to week 12)

Interventionhours (Mean)
BaselineLast PEG-J visit
Levodopa-Carbidopa Intestinal Gel (LCIG)7.5213.10

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Number of Participants With Potentially Clinically Significant Values for 12-lead Electrocardiogram (ECG)

Terms abbreviated in the table include heart rate (HR) in beats per minute (bpm), PR interval (PRI), QT interval corrected for heart rate using Bazett's formula (QTcB), QT interval corrected for heart rate using Fridericia's formula (QTcF), and baseline (BL). Increase and decrease are signified by ↑ and ↓, respectively. n = the number of participants with available data at each time point. (NCT01960842)
Timeframe: From Baseline (end of screening period) to Final PEG-J Visit (up to week 12)

Interventionparticipants (Number)
HR <=50 and >30 bpm ↓ from BL (n=31)HR >=120 and >30 bpm ↑ from BL (n=31)PR Interval <120 msec (n=30)PR Interval >220 msec (n=30)QTcB Interval >480 msec (n=31)QTcB Interval >60 msec ↑ from BL (n=31)QTcF Interval >480 msec (n=31)QTcF Interval >60 msec ↑ from BL (n=31)
Levodopa-Carbidopa Intestinal Gel (LCIG)00011101

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Number of Participants With Potentially Clinically Significant Values for Clinical Chemistry Parameters

Terms abbreviated in the table include upper limit of normal (ULN), male (m), and female (f). (NCT01960842)
Timeframe: From Baseline (end of screening period) to Final PEG-J Visit (up to week 12)

Interventionparticipants (Number)
Alanine Aminotransferase >3xULNAspartate Aminotransferase >3xULNGamma-glutamyl Transferase >3x ULNAlkaline Phosphatase >400 U/LTotal Bilirubin >2xULNCreatine Phosphokinase >3x ULNCreatinine >177 µmol/LBlood Urea Nitrogen >10.8 mmol/LUric Acid>500µmol/L(f);>590µmol/L(m)Calcium <1.75 mmol/LCalcium >3.0 mmol/LSodium <126 mmol/LSodium >156 mmol/LPotassium <3.0 mmol/LPotassium >6.0 mmol/LNon-fasting Glucose <2.78 mmol/LNon-fasting Glucose >16.0 mmol/LAlbumin <25 g/LAlbumin >70 g/LTotal Protein <45 g/LCholesterol >12.9 mmol/LTriglycerides >5.6 mmol/LLactate dehydrogenase >3x ULN
Levodopa-Carbidopa Intestinal Gel (LCIG)11000002000001011100000

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Clinical Global Impression - Change (CGI-I) Score at the Final PEG-J Visit

The CGI-I is a global assessment by the Investigator of the change in clinical status since the start of treatment. The CGI-I ratings are as follows: 1 = very much improved, 2 = much improved, 3 = minimally improved, 4 = no change, 5 = minimally worse, 6 = much worse, 7 = very much worse. (NCT01960842)
Timeframe: Final PEG-J Visit (up to week 12)

Interventionunits on a scale (Mean)
Levodopa-Carbidopa Intestinal Gel (LCIG)1.9

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Number of Participants With Potentially Clinically Significant Values for Hematology Parameters

Terms abbreviated in the table include females (f), males (m), and femtoliters (fL). (NCT01960842)
Timeframe: From Baseline (end of screening period) to Final PEG-J Visit (up to week 12)

Interventionparticipants (Number)
Haemoglobin <90 g/L (f); <100 g/L (m)Haematocrit <30% (f); <34% (m)Red Blood Cells <2.0 10^12/L (f); <2.5 10^12/L (m)Platelet Count <95 10^9/LPlatelet Count >700 10^9/LWhite Blood Cells <2.8 10^9/LWhite Blood Cells >16.0 10^9/LLymphocytes >80%Monocytes >30%Eosinophils >10%Mean Corpuscular Volume <60 fLMean Corpuscular Volume >120 fL
Levodopa-Carbidopa Intestinal Gel (LCIG)120100100100

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Number of Participants With Potentially Clinically Significant Vital Sign Parameters

Terms abbreviated in the table include supine systolic blood pressure (SuSBP), standing systolic blood pressure (StSBP), orthostatic systolic blood pressure (OSBP), supine diastolic blood pressure (SuDBP), standing diastolic blood pressure (StDBP), orthostatic diastolic blood pressure (ODBP), supine pulse (SuP) in beats per minute (bpm), standing pulse (StP), body temperature (Temp), and baseline (BL). Increase and decrease are signified by ↑ and ↓, respectively. (NCT01960842)
Timeframe: From Baseline (end of screening period) to Final PEG-J Visit (up to week 12)

Interventionparticipants (Number)
SuSBP <=90 and >30 mm Hg ↓ from BLSuSBP >=180 and >40 mm Hg ↑ from BLStSBP <=90 and >30 mm Hg ↓ from BLStSBP >=180 and >40 mm Hg ↑ from BLOSBP: ↓ >=30 mm Hg Supine to StandingSuDBP <=50 and >30 mm Hg ↓ from BLSuDBP >=105 and >30 mm Hg ↑ from BLStDBP <=50 and >30 mm Hg ↓ from BLStDBP >=105 and >30 mm Hg ↑ from BLODBP: ↓ >=20 mm Hg Supine to StandingSuP <=50 and >30 bpm ↓ from BLSuP >=120 and >30 bpm ↑ from BLStP <=50 and >30 bpm ↓ from BLStP >=120 and >30 bpm ↑ from BLWeight <=7% ↓ from BLWeight >=7% ↑ from BL
Levodopa-Carbidopa Intestinal Gel (LCIG)31318113311000082

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Number of Participants With Treatment-emergent Adverse Events (TEAEs)

"An adverse event (AE) is any untoward medical occurrence in a participant which does not necessarily have a causal relationship with this treatment. A serious AE (SAE) is an event that results in death, is life-threatening, requires or prolongs hospitalization, results in a congenital anomaly, persistent or significant disability/incapacity or is an important medical event that, based on medical judgment, may jeopardize the participant and may require medical or surgical intervention to prevent any of the outcomes listed above. Treatment-emergent AEs (TEAEs) are defined as any event that began or worsened in severity after N-J placement. The investigator assessed the relationship of each event to the use of study drug as Reasonable Possibility or No Reasonable Possibility.~For more details on adverse events please see the AE section below." (NCT01960842)
Timeframe: From N-J placement to the end of study or early termination of treatment, including the removal of PEG-J (up to 17 weeks), plus 30 days.

Interventionparticipants (Number)
Any TEAEAny TEAE at least possibly related to LCIGAny TEAE at least possibly related to LCIG SystemAny severe TEAEAny SAEAny TEAE Leading to Discontinuation of StudyDeathDeath related to AE
Levodopa-Carbidopa Intestinal Gel (LCIG)3103024111

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Parkinson's Disease Questionnaire (PDQ-39) Mobility, Emotional Well-Being, Stigma, Social Support, Cognition, Communication, and Bodily Discomfort Domain Scores: Change From Baseline To The Final PEG-J Visit

The PDQ-39 is a self-administered questionnaire which comprises 39 items (each question answered on a 5-point scale) addressing 8 domains of health in Parkinson's disease patients: Mobility (e.g., fear of falling when walking) includes 10 questions; Emotional Well-being (e.g., feelings of isolation) includes 6 questions; Stigma (e.g., social embarrassment) includes 4 questions; Social Support includes 3 questions; Cognition includes 4 questions; Communication includes 3 questions; and Bodily Discomfort includes 3 questions. The domain scores are calculated by first summing the answers to the questions in the domain. The sum is divided by the highest score possible (i.e., number of answers multiplied by 4) and the quotient is multiplied by 100 to put the score on a scale from 0 to 100, where lower scores indicate a better perceived health status. Higher scores are consistently associated with the more severe symptoms of the disease such as tremor and stiffness. (NCT01960842)
Timeframe: Baseline (end of screening period) and Final PEG-J Visit (up to week 12)

Interventionunits on a scale (Mean)
Mobility Domain-BaselineMobility Domain-Last PEG-J visitEmotional Well-Being Domain-BaselineEmotional Well-Being Domain-Last PEG-J visitStigma Domain-BaselineStigma Domain-Last PEG-J visitSocial Support Domain-BaselineSocial Support Domain-Last PEG-J visitCognition Domain-BaselineCognition Domain-Last PEG-J visitCommunication Domain-BaselineCommunication Domain-Last PEG-J visitBodily Discomfort Domain-BaselineBodily Discomfort Domain-Last PEG-J visit
Levodopa-Carbidopa Intestinal Gel (LCIG)55.736.530.824.320.613.116.114.628.514.613.314.435.017.2

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Unified Parkinson's Disease Rating Scale (UPDRS) Part IV Score: Change From Baseline To The Final PEG-J Visit

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part IV Score is the sum of the answers to the 11 questions that comprise Part IV, each of which are measured on a 5-point scale (0-4) or a 2-point scale (0 or 1). The Part IV score ranges from 0 to 23 and higher scores are associated with more disability. (NCT01960842)
Timeframe: Baseline (end of screening period) and Final PEG-J Visit (up to week 12)

Interventionunits on a scale (Mean)
BaselineLast PEG-J visit
Levodopa-Carbidopa Intestinal Gel (LCIG)8.75.5

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Unified Parkinson's Disease Rating Scale (UPDRS) Total Score: Change From Baseline To The Final PEG-J Visit

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The total score is the sum of the responses to the 31 questions (44 answers) that comprise Parts I-III of the scale. The total score will range from 0 to176, with 176 representing the worst (total) disability, and 0 representing no disability. (NCT01960842)
Timeframe: Baseline and Final PEG-J Visit (up to Week 12)

Interventionunits on a scale (Mean)
BaselineLast PEG-J visit
Levodopa-Carbidopa Intestinal Gel (LCIG)27.722.9

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Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score: Change From Baseline To The Final PEG-J Visit

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part II score is the sum of the answers to the 13 questions that comprise Part II, each of which are measured on a 5-point scale (0-4). The Part II score ranges from 0-52 and higher scores are associated with more disability. (NCT01960842)
Timeframe: Baseline (end of screening period) and Final PEG-J Visit (up to week 12)

Interventionunits on a scale (Mean)
BaselineLast PEG-J visit
Levodopa-Carbidopa Intestinal Gel (LCIG)9.47.6

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Parkinson's Disease Questionnaire (PDQ-39) Summary Index: Change From Baseline To The Final PEG-J Visit

The PDQ-39 is a self-administered questionnaire which comprises 39 items addressing 8 domains of health in Parkinson's disease patients. These include: mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort. The PDQ-39 Summary Index is the sum of all answers divided by the highest score possible (i.e. number of answers multiplied by 4) which is multiplied by 100 to put the score on a 0-100 scale. Higher scores are associated with more severe symptoms. (NCT01960842)
Timeframe: Baseline (end of screening period) and Final PEG-J Visit (up to week 12)

Interventionunits on a scale (Mean)
BaselineLast PEG-J visit
Levodopa-Carbidopa Intestinal Gel (LCIG)35.523.5

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"Average Daily Normalized Off Time Including All PD Diaries Regardless if They Were Completed After the Subject Had Used a Concomitant Anti-Parkinsonian Medication: Change From Baseline To The Final PEG-J Visit"

"Based on the Parkinson's Disease Symptom Diary. On time is when PD symptoms are well controlled by the drug. Off time is when PD symptoms are not adequately controlled by the drug. The diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected clinic visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e. 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. Negative change from baseline for off time indicates improvement." (NCT01960842)
Timeframe: Baseline (end of screening period) and Final PEG-J Visit (up to week 12)

Interventionhours (Mean)
BaselineLast PEG-J visit
Levodopa-Carbidopa Intestinal Gel (LCIG)7.372.78

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Unified Parkinson's Disease Rating Scale (UPDRS) Part I Score: Change From Baseline To The Final PEG-J Visit

The UPDRS is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part I Score is the sum of the answers to the 4 questions that comprise Part I, each of which are measured on a 5-point scale (0-4). The Part I score ranges from 0 to 16 and higher scores are associated with more disability. (NCT01960842)
Timeframe: Baseline (end of screening period) and Final PEG-J Visit (up to week 12)

Interventionunits on a scale (Mean)
BaselineLast PEG-J visit
Levodopa-Carbidopa Intestinal Gel (LCIG)1.80.9

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Cocaine Treatment Outcome

Treatment effectiveness score based on number of positive urine drug screens (NCT02080819)
Timeframe: Baseline to 12 weeks

Interventionpositive drug screens (Mean)
Healthy Control0
Placebo14
Medication13

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Tmax - Time to Reach Maximum Plasma Concentration of Levodopa (Levodopa/Benserazide)

Levodopa pharmacokinetic parameters following a single oral administration of 100/25 mg levodopa/benserazide administered 12 h after BIA 9-1067 (5 mg, 15 mg and 50 mg) or placebo on Day 18 (NCT02169414)
Timeframe: pre-dose and at the following times post-dose: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16 and 24 hours post-dose.

Interventionhours (Mean)
Placebo0.89
BIA 9-1067 5 mg1.08
BIA 9-1067 15 mg0.7
BIA 9-1067 50 mg1.08

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AUC0-∞ - Area Under the Plasma Concentration-time Curve (AUC) of Levodopa From Time Zero to Infinity (Levodopa/Benserazide)

Levodopa pharmacokinetic parameters following a single oral administration of 100/25 mg levodopa/benserazide administered 12 h after BIA 9-1067 (5 mg, 15 mg and 50 mg) or placebo on Day 18 (NCT02169414)
Timeframe: pre-dose and at the following times post-dose: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16 and 24 hours post-dose.

Interventionng.h/mL (Mean)
Placebo2360.3
BIA 9-1067 5 mg2660.9
BIA 9-1067 15 mg3655.9
BIA 9-1067 50 mg3979.5

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AUC0-∞ - Area Under the Plasma Concentration-time Curve (AUC) of Levodopa From Time Zero to Infinity (Levodopa/Carbidopa)

Levodopa pharmacokinetic parameters following a single oral administration of 100/25 mg levodopa/carbidopa administered 12 h after BIA 9-1067 (5 mg, 15 mg and 50 mg) or placebo on Day 11 (NCT02169414)
Timeframe: pre-dose and at the following times post-dose: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16 and 24 hours post-dose.

Interventionng.h/mL (Mean)
Placebo1861.3
BIA 9-1067 5 mg2332.3
BIA 9-1067 15 mg2736.8
BIA 9-1067 50 mg3182.6

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AUC0-t - Area Under the Plasma Concentration-time Curve (AUC) of Levodopa From Time Zero to the Last Sampling Time at Which the Drug Concentration Was at or Above the Lower Limit of Quantification. (Levodopa/Benserazide)

Levodopa pharmacokinetic parameters following a single oral administration of 100/25 mg levodopa/benserazide administered 12 h after BIA 9-1067 (5 mg, 15 mg and 50 mg) or placebo on Day 18 (NCT02169414)
Timeframe: pre-dose and at the following times post-dose: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16 and 24 hours post-dose

Interventionng.h/mL (Mean)
Placebo2278.8
BIA 9-1067 5 mg2549.8
BIA 9-1067 15 mg3521.1
BIA 9-1067 50 mg3819.7

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AUC0-t - Area Under the Plasma Concentration-time Curve (AUC) of Levodopa From Time Zero to the Last Sampling Time at Which the Drug Concentration Was at or Above the Lower Limit of Quantification. (Levodopa/Carbidopa)

AUC0-t - Area under the plasma concentration-time curve (AUC) of levodopa from time zero to the last sampling time following a single oral administration of 100/25 mg levodopa/carbidopa administered 12 h after BIA 9-1067 (5 mg, 15 mg and 50 mg) or placebo on Day 11 (NCT02169414)
Timeframe: pre-dose and at the following times post-dose: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16 and 24 hours post-dose.

Interventionng.h/mL (Mean)
Placebo1788.3
BIA 9-1067 5 mg2219.7
BIA 9-1067 15 mg2584.3
BIA 9-1067 50 mg2975.9

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Cmax - Maximum Plasma Concentration of Levodopa (Levodopa/Benserazide )

Levodopa pharmacokinetic parameters following a single oral administration of 100/25 mg levodopa/benserazide administered 12 h after BIA 9-1067 (5 mg, 15 mg and 50 mg) or placebo on Day 18 (NCT02169414)
Timeframe: pre-dose and at the following times post-dose: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16 and 24 hours post-dose.

Interventionng/mL (Mean)
Placebo1770.3
BIA 9-1067 5 mg1379.8
BIA 9-1067 15 mg2118.3
BIA 9-1067 50 mg1813.7

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Cmax - Maximum Plasma Concentration of Levodopa (Levodopa/Carbidopa)

Cmax - Maximum plasma concentration of levodopa following a single oral administration of 100/25 mg levodopa/carbidopa administered 12 h after BIA 9-1067 (5 mg, 15 mg and 50 mg) or placebo on Day 11 (NCT02169414)
Timeframe: pre-dose and at the following times post-dose: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16 and 24 hours post-dose.

Interventionng/mL (Mean)
Placebo966.6
BIA 9-1067 5 mg1026.8
BIA 9-1067 15 mg1097.9
BIA 9-1067 50 mg1019.7

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Tmax - Time to Reach Maximum Plasma Concentration of Levodopa (Levodopa/Carbidopa)

Tmax - Time to Reach maximum plasma concentration of levodopa following a single oral administration of 100/25 mg levodopa/carbidopa administered 12 h after BIA 9-1067 (5 mg, 15 mg and 50 mg) or placebo on Day 11 (NCT02169414)
Timeframe: pre-dose and at the following times post-dose: 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16 and 24 hours post-dose.

Interventionhours (Median)
Placebo0.78
BIA 9-1067 5 mg1
BIA 9-1067 15 mg0.95
BIA 9-1067 50 mg1

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Cmax - Maximum Plasma Concentration of Levodopa

Cmax - Maximum plasma concentration of levodopa (mean pharmacokinetic parameter) following first oral administration of 100/25 mg levodopa/carbidopa on Day 12 with 25, 50 and 75 mg OPC or placebo and 200 mg Entacapone. (NCT02170376)
Timeframe: pre-first dose and at 0.5, 1.0, 1.5, 2.0, 3.0, 4.0 and 5.0 h post-first and -second levodopa/carbidopa administration, and at 0.5, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 8.0 and 14.0 h post-third levodopa/carbidopa administration

,,,,
Interventionng/mL (Mean)
Post First DosePost Second DosePost Third Dose
ENT 200 mg87614371303
OPC 25 mg120316191393
OPC 50 mg103019741346
OPC 75 mg105721131658
Placebo104715501268

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Tmax - Time of Occurrence of Maximum Plasma Concentration

Tmax - Time to Reach maximum plasma concentration of levodopa (mean pharmacokinetic parameter) following first oral administration of 100/25 mg levodopa/carbidopa on Day 12 with 25, 50 and 75 mg OPC or placebo and 200 mg Entacapone (NCT02170376)
Timeframe: pre-first dose and at 0.5, 1.0, 1.5, 2.0, 3.0, 4.0 and 5.0 h post-first and -second levodopa/carbidopa administration, and at 0.5, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 8.0 and 14.0 h post-third levodopa/carbidopa administration

,,,,
Interventionhours (Mean)
Post First DosePost Second DosePost Third Dose
ENT 200 mg1.130.9061.59
OPC 25 mg1.131.201.33
OPC 50 mg1.341.061.34
OPC 75 mg1.281.191.31
Placebo1.310.8751.69

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t1/2 - Terminal Plasma Half-life

t1/2 - Terminal plasma half-life of levodopa (mean pharmacokinetic parameter) following first oral administration of 100/25 mg levodopa/carbidopa on Day 12 with 25, 50 and 75 mg OPC or placebo and 200 mg Entacapone. (NCT02170376)
Timeframe: pre-first dose and at 0.5, 1.0, 1.5, 2.0, 3.0, 4.0 and 5.0 h post-first and -second levodopa/carbidopa administration, and at 0.5, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 8.0 and 14.0 h post-third levodopa/carbidopa administration

,,,,
InterventionHours (Mean)
Post First DosePost Second DosePost Third Dose
ENT 200 mg2.112.092.20
OPC 25 mg2.472.232.56
OPC 50 mg2.472.462.75
OPC 75 mg2.392.232.70
Placebo1.461.411.74

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AUC0-t - Area Under the Plasma Concentration Versus Time Curve From Time Zero to the Time (t) Corresponding to the Last Quantifiable Concentration.

AUC0-t - of levodopa (mean pharmacokinetic parameter) following first oral administration of 100/25 mg levodopa/carbidopa on Day 12 with 25, 50 and 75 mg OPC or placebo and 200 mg Entacapone. (NCT02170376)
Timeframe: pre-first dose and at 0.5, 1.0, 1.5, 2.0, 3.0, 4.0 and 5.0 h post-first and -second levodopa/carbidopa administration, and at 0.5, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 8.0 and 14.0 h post-third levodopa/carbidopa administration

,,,,
Interventionng.h/mL (Mean)
Post First DosePost Second DosePost Third Dose
ENT 200 mg204134454366
OPC 25 mg266536785391
OPC 50 mg238341515685
OPC 75 mg282945976928
Placebo198527743123

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AUC0-5 - AUC Over 5 Hours

AUC0-5 - of levodopa (mean pharmacokinetic parameter) following first oral administration of 100/25 mg levodopa/carbidopa on Day 12 with 25, 50 and 75 mg OPC or placebo and 200 mg Entacapone. (NCT02170376)
Timeframe: pre-first dose and at 0.5, 1.0, 1.5, 2.0, 3.0, 4.0 and 5.0 h post-first and -second levodopa/carbidopa administration, and at 0.5, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 8.0 and 14.0 h post-third levodopa/carbidopa administration

,,,,
Interventionng.h/mL (Mean)
Post First DosePost Second DosePost Third Dose
ENT 200 mg204234463468
OPC 25 mg266536783802
OPC 50 mg238341513940
OPC 75 mg282945974882
Placebo198527742719

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AUC0-∞ - Area Under the Concentration-time Curve From Time Zero up to Infinity With Extrapolation of the Terminal Phase

AUC0-∞ of levodopa (mean pharmacokinetic parameter) following first oral administration of 100/25 mg levodopa/carbidopa on Day 12 with 25, 50 and 75 mg OPC or placebo and 200 mg Entacapone. (NCT02170376)
Timeframe: pre-first dose and at 0.5, 1.0, 1.5, 2.0, 3.0, 4.0 and 5.0 h post-first and -second levodopa/carbidopa administration, and at 0.5, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 8.0 and 14.0 h post-third levodopa/carbidopa administration

,,,,
Interventionng.h/mL (Mean)
Post First DosePost Second DosePost Third Dose
ENT 200 mg275243674707
OPC 25 mg373249675614
OPC 50 mg336357275912
OPC 75 mg399862137177
Placebo230530703299

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Digit Symbol Task Neurocognitive Test

The Digit Symbol Task was used to assess graphomotor speed, visual scanning and memory processing speed involving numbers and a corresponding blank box where subjects are asked to fill in matching symbol as fast as they can. Results show the average number of correct symbols completed in up to 100 boxes in 90 seconds. (NCT02513485)
Timeframe: At baseline and approximately 2-3 hours post drug/placebo administration at Visit 1, Visit 2 (spaced by approximately 1 week)

,
Interventionnumber of correct symbols (Mean)
Baseline Visit (Task Practice)Visit 1: 2-3 hrs post drug/placeboVisit 2: 2-3 hrs post drug/placebo
Placebo/Sinemet54.964.566.4
Sinemet/Placebo52.061.366.6

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Change in Motivation and Pleasure (MAP) Scale Score

The motivation and pleasure (MAP) questionnaire is an 18-item self-report inventory that was created to disentangle state-wise motivational and consummatory components of everyday activities over a 24-hour period. This scale was used to assess self-reported changes in symptoms of anhedonia before and after inflammation blockade. Respondents respond to statements about daily activities on a scale from 0 (no pleasure/not at all) to 4 (extreme pleasure/very often). Total scores range from 0 to 72 where higher scores indicate greater motivation and effort given to everyday situations. (NCT02513485)
Timeframe: Visit 1: Pre drug/placebo, Visit 1: 1-2 hrs post drug/placebo, Visit 2: Pre drug/placebo, Visit 2: 1-2 hrs post drug/placebo

,
Interventionscore on a scale (Mean)
Visit 1: Pre drug/placeboVisit 1: 1-2 hrs post drug/placeboVisit 2: Pre drug/placeboVisit 2: 1-2 hrs post drug/placebo
Placebo/Sinemet26.625.425.125.1
Sinemet/Placebo25.526.928.929.2

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Change in Functional Corticostriatal Connectivity

Corticostriatal connectivity was assessed by functional magnetic resonance imaging (fMRI). Resting-state and task-based (monetary incentive delay [MID]) fMRI scans were conducted on a 3 Tesla Siemens Trio MRI scanner. Subject-level correlations for degree of cortical and striatal functional connectivity were Fisher's Z transformed {Z(R)=0.5ln[(1+R)/(1-R)]}, a standard method for calculating fMRI functional connectivity. Greater Fisher's Z-scores reflected stronger correlated fMRI activity (i.e., higher corticostriatal connectivity). (NCT02513485)
Timeframe: Scans approximately 45 min post drug/placebo administration at Visit 1, Visit 2 (spaced by approximately 1 week)

,
InterventionZ-score (Mean)
Visit 1 resting corticostriatal connectivity response to drug/placebo (post minus pre)Visit 2 resting corticostriatal connectivity response to drug/placebo (post minus pre)Visit 1 resting corticostriatal connectivity post drug/placeboVisit 2 resting corticostriatal connectivity post drug/placeboVisit 1 task (reward anticipation) corticostriatal connectivity post drug/placeboVisit 2 task (reward anticipation) corticostriatal connectivity post drug/placebo
Placebo/Sinemet0.040.000.240.170.00-0.03
Sinemet/Placebo0.100.070.220.240.02-0.04

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Beck Depression Inventory (BDI-II), Anhedonia Subscale Score

The Beck Depression Inventory-II (BDI-II) is a widely used self-report for measuring depression severity over the past two weeks and the anhedonia subscale is one of several validated subscales in the BDI-II. Responses are given on a 4-point scale where 0 = the symptom of depression has not been experienced and 3 = the symptom of depression is severe. The anhedonia subscale score is created by summing responses to four items of the BDI-II that assess loss of pleasure, loss of interest, loss of energy, loss of sex drive. The total score of the anhedonia subscale ranges from 0 to 12 where higher scores reflect greater severity of anhedonia symptoms. (NCT02513485)
Timeframe: Visit 1: Pre drug/placebo, Visit 2: Pre drug/placebo (spaced by approximately 1 week)

,
Interventionscore on a scale (Mean)
Visit 1: Pre drug/placeboVisit 2: Pre drug/placebo
Placebo/Sinemet5.95.9
Sinemet/Placebo6.45.7

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Profile of Mood States (POMS) Scale

The Profile of Mood States (POMS) scale is a 30-item psychological rating scale used to assess transient, distinct mood states. Participants rate the extent to which they feel unhappy, blue, lonely, gloomy, and worthless on a scale from 0 (not at all) to 4 (extremely). Scores range from 0 to 120 with higher scores reflecting a more negative mood state. (NCT02513485)
Timeframe: Visit 1: Pre drug/placebo, Visit 1: 1-2 hrs post drug/placebo, Visit 2: Pre drug/placebo, Visit 2: 1-2 hrs post drug/placebo

,
Interventionscore on a scale (Mean)
Visit 1: Pre drug/placeboVisit 1: 1-2 hrs post drug/placeboVisit 2: Pre drug/placeboVisit 2: 1-2 hrs post drug/placebo
Placebo/Sinemet57.051.556.251.0
Sinemet/Placebo60.254.053.048.5

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The Trail Making Test (TMT) Neurocognitive Assessment

The Trail Making Test (TMT) is used to measure basic attention and psychomotor processing speed. Time taken to complete each task is recorded in seconds, whereby the greater the number of seconds, the slower the psychomotor speed. (NCT02513485)
Timeframe: At baseline and approximately 2-3 hours post drug/placebo administration at Visit 1, Visit 2 (spaced by approximately 1 week)

,
Interventionseconds (Mean)
Baseline Visit (Task Practice)Visit 1: 2-3 hrs post drug/placeboVisit 2: 2-3 hrs post drug/placebo
Placebo/Sinemet23.721.019.7
Sinemet/Placebo24.021.723.0

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State-Trait Anxiety Inventory (STAI) State Scale

The 20-item self-report State-Trait Anxiety Inventory (STAI) State scale was used to measure severity of anxiety symptoms. Total scores range from 20 to 80 with higher scores reflecting greater anxiety. Scores in the high 40s are considered clinically significant. (NCT02513485)
Timeframe: Visit 1: Pre drug/placebo, Visit 1: 1-2 hrs post drug/placebo, Visit 2: Pre drug/placebo, Visit 2: 1-2 hrs post drug/placebo

,
Interventionscore on a scale (Mean)
Visit 1: Pre drug/placeboVisit 1: 1-2 hrs post drug/placeboVisit 2: Pre drug/placeboVisit 2: 1-2 hrs post drug/placebo
Placebo/Sinemet46.542.245.943.0
Sinemet/Placebo52.149.251.343.4

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Snaith-Hamilton Pleasure Scale (SHAPS) Self-report Questionnaire

"The Snaith-Hamilton Pleasure Scale (SHAPS), a 14-item self-report scale with high psychometric validity for assessing the presence of anhedonia, was used to assess hedonic capacity. Participants rated how much they agreed or disagreed with the 14 items phrased as I would enjoy __ based on their ability to experience pleasure. Of the four possible response categories (Definitely Agree, Agree, Disagree, and Strongly Disagree), either of the Disagree responses received a score of 1 and either of the Agree responses received a score of 0. The SHAPS score calculated as the sum of these 14 items ranged from 0 to 14, and higher SHAPS scores indicated greater anhedonia." (NCT02513485)
Timeframe: Visit 1: Pre drug/placebo, Visit 1: 1-2 hrs post drug/placebo, Visit 2: Pre drug/placebo, Visit 2: 1-2 hrs post drug/placebo

,
Interventionscore on a scale (Mean)
Visit 1: Pre drug/placeboVisit 1: 1-2 hrs post drug/placeboVisit 2: Pre drug/placeboVisit 2: 1-2 hrs post drug/placebo
Placebo/Sinemet5.84.64.93.9
Sinemet/Placebo4.74.34.24.2

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Reaction Time Task (CANTAB) Neurocognitive Test

The reaction time test includes simple and choice reaction time tasks and is divided into 5 stages requiring increasingly complex chains of responses. The task provided distinction between reaction (or decision) time and movement latencies (milliseconds) based on touch responses made to a single (simple) or chosen from multiple (choice) stimuli flashed on a computer screen. Results show mean response latency in milliseconds. (NCT02513485)
Timeframe: At baseline and approximately 2-3 hours post drug/placebo administration at Visit 1, Visit 2 (spaced by approximately 1 week)

,
Interventionmilliseconds (Mean)
Baseline Simple Motor TimeBaseline Choice Motor TimeBaseline Simple Reaction TimeBaseline Choice Reaction TimeVisit 1: 2-3 hrs post drug/placebo Simple Motor TimeVisit 1: 2-3 hrs post drug/placebo Choice Motor TimeVisit 1: 2-3 hrs post drug/placebo Simple Reaction TimeVisit 1: 2-3 hrs post drug/placebo Choice Reaction TimeVisit 2: 2-3 hrs post drug/placebo Simple Motor TimeVisit 2: 2-3 hrs post drug/placebo Choice Motor TimeVisit 2: 2-3 hrs post drug/placebo Simple Reaction TimeVisit 2: 2-3 hrs post drug/placebo Choice Reaction Time
Placebo/Sinemet276.12299.57356.53394.82258.53284.94348.93385.03268.37296.94361.76396.68
Sinemet/Placebo266.92286.82360.84397.60240.62268.69256.99397.07241.28260.47358.59395.22

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Multidimensional Fatigue Inventory (MFI) Self-report Questionnaire

The Multidimensional Fatigue Inventory (MFI) is a 20-item self-report instrument designed to measure severity of fatigue based on five dimensions of fatigue, general fatigue, physical fatigue, mental fatigue, reduced motivation, and reduced activity. The total MFI scores range from 20 to 100 where high scores indicate greater fatigue. (NCT02513485)
Timeframe: At baseline and Visit 1, Visit 2 (spaced by approximately 1 week)

,
Interventionscore on a scale (Mean)
BaselineVisit 1: Pre drug/placeboVisit 2: Pre drug/placebo
Placebo/Sinemet72.774.274.1
Sinemet/Placebo74.776.775.7

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Correlation Coefficient Between Change in Corticostriatal Connectivity and Levels of Plasma C-reactive Protein and Other Immune Markers

Peripheral blood samples were analyzed for levels of immune markers like plasma C-reactive protein (CRP), interleukin-6 (IL-6), soluble interleukin-6 receptor (sIL-6R), tumor necrosis factor (TNF) -alpha, soluble cytokine receptor2 (TNFR 2), interleukin-1 beta (IL-1 beta), interleukin-1 receptor antagonist (IL-1Ra), interleukin 10 (IL-10) and monocyte chemoattractant protein-1 (MCP-1). (NCT02513485)
Timeframe: Scans approximately 45 minutes post drug/placebo administration at Visit 1, Visit 2 (spaced by approximately 1 week)

,
InterventionPearson's r Correlation Coefficient (Number)
CRP mg/L and Visit 1 resting connectivity response to drug/placebo (post minus pre)CRP mg/L and Visit 2 resting connectivity response to drug/placebo (post minus pre)CRP mg/L and Visit 1 resting connectivity post drug/placeboCRP mg/L and Visit 2 resting connectivity post drug/placeboCRP mg/L and Visit 1 task (reward anticipation) connectivity post drug/placeboCRP mg/L and Visit 2 task (reward anticipation) connectivity post drug/placeboCRP > vs. < 2 mg/ and Visit 1 resting connectivity response to drug/placebo (post minus pre)CRP > vs. < 2 mg/L and Visit 2 resting connectivity response to drug/placebo (post minus pre)CRP > vs. < 2 mg/L and Visit 1 resting connectivity post drug/placeboCRP > vs. < 2 mg/L and Visit 2 resting connectivity post drug/placeboCRP > vs. < 2 mg/L and Visit 1 task (reward anticipation) connectivity post drug/placeboCRP > vs. < 2 mg/L and Visit 2 task (reward anticipation) connectivity post drug/placeboSum of cytokine Z scores and Visit 1 resting connectivity response to drug/placebo (post minus pre)Sum of cytokine Z scores and Visit 2 resting connectivity response to drug/placebo (post minus pre)Sum of cytokine Z scores and Visit 1 resting connectivity post drug/placeboSum of cytokine Z scores and Visit 2 resting connectivity post drug/placeboSum of cytokine Z scores and Visit 1 task (reward anticipation) connectivity post drug/placeboSum of cytokine Z scores and Visit 2 task (reward anticipation) connectivity post drug/placebo
Placebo/Sinemet-0.150.440.150.41-0.310.250.040.520.170.38-0.350.48-0.050.29-0.050.08-0.34-0.18
Sinemet/Placebo0.36-0.120.10-0.100.490.100.20-0.330.12-0.310.22-0.180.40-0.140.15-0.220.260.04

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Inventory of Depressive Symptoms-Self Report (IDS-SR) Questionnaire

The Inventory of Depressive Symptoms-Self Report (IDS-SR) is a 30-item self-report instrument with excellent psychometric properties for measuring symptom constructs consistent with current Diagnostic and Statistical Manual of Mental Disorders (DSM) nosology and that is widely used to measure depression severity in clinical trials. Response scores are summed and range from 0 to 84, with higher scores reflecting greater depression severity. (NCT02513485)
Timeframe: At baseline and Visit 1: Pre drug/placebo, Visit 2: Pre drug/placebo (spaced by approximately 1 week)

,
Interventionscore on a scale (Mean)
BaselineVisit 1: Pre drug/placeboVisit 2: Pre drug/placebo
Placebo/Sinemet35.031.832.0
Sinemet/Placebo37.937.634.7

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Finger Tapping Task (FTT) Neurocognitive Test

The Finger Tapping Task (FTT) assesses motor speed and can detect subtle motor impairment. The test measures the average number of taps per 10 second trial. A greater number of taps reflects faster motor speed. (NCT02513485)
Timeframe: At baseline and approximately 2-3 hours post drug/placebo administration at Visit 1, Visit 2 (spaced by approximately 1 week)

,
Interventionnumber of taps (Mean)
Baseline Visit (Task Practice)Visit 1: 2-3 hrs post drug/placeboVisit 2: 2-3 hrs post drug/placebo
Placebo/Sinemet54.964.566.4
Sinemet/Placebo52.061.366.6

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Effort-Expenditure for Rewards Task (EEfRT) Neurocognitive Test

The Effort-Expenditure for Rewards Task (EEfRT) is a computer-based multi-trial task used to objectively assess motivation. Possible results range between 0 to1 with 1 being a better outcome. Results show mean probability of hard (high effort) choice. (NCT02513485)
Timeframe: At baseline and approximately 2-3 hours post drug/placebo administration at Visit 1, Visit 2 (spaced by approximately 1 week)

,
InterventionProbability of hard/high effort choices (Mean)
Baseline Visit (Task Practice)Visit 1: 2-3 hrs post drug/placeboVisit 2: 2-3 hrs post drug/placebo
Placebo/Sinemet0.390.340.34
Sinemet/Placebo0.290.280.30

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Patient Global Impression of Change (PGIC) Final Score

The PGIC is a 7-point response scale. The participant was asked by the Investigator or qualified designee to rate their change in status using the following 7-point scale: 1 = Very much improved, 2 = Much improved, 3 = Minimally improved, 4 = No change, 5 = Minimally worse, 6 = Much worse, 7 = Very much worse. PGIC score ranges from 1 to 7 with lower score desirable. (NCT02549092)
Timeframe: End of Treatment Period (up to Week 26)

Interventionscore on a scale (Least Squares Mean)
Optimized Medical Treatment4.9
LCIG2.5

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Clinical Global Impression of Change (CGI-C) Final Score

CGI-C score is a clinician's impression of a subject's change in status on a 7-point scale (1 = very much improved, 2 = much improved, 3 = minimally Improved, 4 = no change, 5 = minimally worse, 6 = much worse, 7 = very much worse). Scores range from 1 to 7, with lower score desirable. (NCT02549092)
Timeframe: End of Treatment Period (up to Week 26)

Interventionscore on a scale (Least Squares Mean)
Optimized Medical Treatment4.9
LCIG2.5

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Change From Baseline to Week 26 in the Modified PDSS-2 Total Score

The PDSS-2 addresses PD-specific sleep disturbances such as restless leg syndrome (RLS), morning akinesia, pain, and sleep apnea. The frequency is assessed for the 15 sleep problems based on a 5-point Likert-type scale (ranging from 0 [never] to 4 [very often]). Scores are calculated for each of the 3 domains (motor symptoms at night, PD symptoms at night, and disturbed sleep) as well as a total score. The PDSS-2 domain scores range from 0 to 20 and the total score is a sum of the 3 domains and ranges from 0 to 60. Repeated measure analysis. (NCT02549092)
Timeframe: Baseline, Week 26

Interventionscore on a scale (Least Squares Mean)
Optimized Medical Treatment-8.98
LCIG-7.41

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Change From Baseline to Week 26 in Parkinson's Disease Questionnaire (PDQ-8) Summary Index Score

The PDQ-8 is a disease-specific instrument designed to measure aspects of health relevant to PD. Eight questions including the mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort are assessed on a 5-point scale: 0 = Never, 1 = Occasionally, 2 = Sometimes, 3 = Often, 4 = Always (or cannot do at all, if applicable). Summary index score is the sum of each question divided by 32 and multiplied by 100. Scores range from 0 to 100 with lower values desirable. (NCT02549092)
Timeframe: Baseline, Week 26

Interventionscore on a scale (Least Squares Mean)
Optimized Medical Treatment-1.75
LCIG-5.56

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Change From Baseline at Week 26 in King's PD Pain Scale (KPPS) Score

The KPPS score is a clinical PD-specific pain scale of 14 items addressing the following 7 domains: musculoskeletal pain, chronic pain, fluctuation-related pain, nocturnal pain, orofacial pain, neuropathic pain, radicular pain. Each domain item is scored by severity (0, none to 3, very severe) multiplied by frequency (0, never to 4, all the time) resulting in a subscore of 0 - 12 (with lower value desirable), the sum of the 14 items gives the total score with a range from 0 to 168 with lower value desirable. (NCT02549092)
Timeframe: Baseline, Week 26

,
Interventionscore on a scale (Least Squares Mean)
Total scoreMusculoskeletal Pain ScoreChronic pain scoreFluctuation related pain scoreNocturnal pain scoreOrofacial pain scoreDiscoloration and edema scoreRadicular pain score
LCIG-12.46-1.79-0.77-3.14-2.78-0.87-2.27-1.47
Optimized Medical Treatment-11.32-1.72-0.84-3.77-2.41-0.74-0.47-1.43

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Change From Baseline at Week 26 in Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score

UPDRS is an investigator-used rating tool to follow the longitudinal course of Parkinson's disease of 42 total questions. Part I (Questions 1 - 4), Part II (Questions 5 - 17), Part III (Questions 18 - 31), and Part IV (Questions 32 - 42). Questions 35 - 38 and 40 - 42 are 2-point (0 and 1), all other questions are 5-point (0 - 4). Part II scores range from 0 to 52 with lower value desirable. (NCT02549092)
Timeframe: Baseline, Week 26

Interventionscore on a scale (Least Squares Mean)
Optimized Medical Treatment0.53
LCIG-2.26

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Change From Baseline at Week 26 in Parkinson's Anxiety Scale (PAS) Total Score

PAS is a 12-item scale developed specifically to measure severity in anxiety in Parkinson's disease for the following items: Feeling anxious or nervous; Feeling tense or stressed; Being unable to relax; Excessive worrying about everyday matters; Fear of something bad, or even the worst, happening; Panic or intense fear; Shortness of breath; Heart palpitations or heart beating fast; Fear of losing control; Social situations; Public settings; Specific objects or situations. Severity for each item is rated as: 0, Never; 1 Rarely; 2, Sometimes; 3, Often; 4, Nearly always. Total score is the sum of the12 item scores, with a range of 0 to 48; a lower value is desirable. (NCT02549092)
Timeframe: Baseline, Week 26

Interventionscore on a scale (Least Squares Mean)
Optimized Medical Treatment-0.75
LCIG-2.29

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Change From Baseline at Week 26 in Geriatric Depression Scale (GDS-15) Score

"The GDS-15 is a short, self-report reliable and valid screening instrument for depression in the elderly of 15 yes/no questions: 1) Satisfied with life 2) Dropped many activities and interests 3) Life is empty 4) Often get bored 5) In good spirits most of the time 6) Afraid that something bad is going to happen 7) Feel happy most of the time 8) Often feel helpless 9) Prefer to stay at home, rather than going out and doing things 10) Feel that have more problems with memory than most 11) Think it is wonderful to be alive now 12) Feel worthless 13) Feel full of energy 14) Situation is hopeless 15) Most subjects are better off. Answers of 'yes' to questions 2, 3, 4, 6, 8, 9, 10, 12, 14, 15 are scored 1 point. Answers of 'no' to questions 1, 5, 7, 11, 13 are scored~1 point. The 15 items are summed and scores range from 0 - 15 with lower value desirable." (NCT02549092)
Timeframe: Baseline, Week 26

Interventionscore on a scale (Least Squares Mean)
Optimized Medical Treatment0.25
LCIG0.17

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Change From Baseline to Week 26 in the NMSS Total Score

The NMSS consists of 30 questions in 9 domains (cardiovascular/falls, sleep/fatigue, mood/cognition, perceptual problems/hallucinations, attention/memory, GI tract, urinary, sexual function, miscellaneous). Score of each question is calculated by multiplying severity*frequency. Severity and frequency are rated using a scale ranging from 0 (none) to 3 (severe) for severity and from 1 (rarely) to 4 (very frequent) for frequency. Total score is the sum of 9 domains, and ranges from 0 to 360, with a lower value indicating a more desirable outcome. Repeated-measure analysis. (NCT02549092)
Timeframe: Baseline, Week 26

Interventionscore on a scale (Least Squares Mean)
Optimized Medical Treatment-23.83
LCIG-32.04

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Change From Baseline to Week 26 in the NMSS Domain Scores

The NMSS consists of 30 questions in 9 domains. Score of each question is calculated by multiplying severity*frequency. Severity and frequency are rated using a scale ranging from 0 (none) to 3 (severe) for severity and from 1 (rarely) to 4 (very frequent) for frequency. Cardiovascular/falls scores range from 0 - 24 with lower value desirable. Sleep/fatigue scores range from 0 - 48 with lower value desirable. Mood/cognition scores range from 0 - 72 with lower value desirable. Perceptual problems/hallucinations scores range from 0 - 36 with lower value desirable. Attention/memory scores range from 0 - 36 with lower value desirable. Gastrointestinal tract scores range from 0 - 36 with lower value desirable. Urinary scores range from 0 - 36 with lower value desirable. Sexual function scores range from 0 - 24 with lower value desirable. Miscellaneous scores range from 0 - 48 with lower value desirable. Repeated-measure analysis. (NCT02549092)
Timeframe: Baseline, Week 26

,
Interventionscore on a scale (Least Squares Mean)
Cardiovascular including fallsSleep/fatigueMood/cognitionPerceptual problems/hallucinationsAttention/memoryGastrointestinal tractUrinarySexual functionMiscellaneous
LCIG-1.76-6.06-7.84-1.14-2.15-3.43-4.830.10-5.16
Optimized Medical Treatment-1.84-7.11-5.99-1.53-1.20-0.85-3.650.88-3.87

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Change From Baseline to Week 26 in the Modified PDSS-2 Domain Scores

The PDSS-2 addresses PD-specific sleep disturbances such as restless leg syndrome (RLS), morning akinesia, pain, and sleep apnea. The frequency is assessed for the 15 sleep problems based on a 5-point Likert-type scale (ranging from 0 [never] to 4 [very often]). Scores are calculated for each of the 3 domains (motor symptoms at night, PD symptoms at night, and disturbed sleep) as well as a total score. The PDSS-2 domain scores range from 0 to 20 and the total score is a sum of the 3 domains and ranges from 0 to 60. Repeated measure analysis. (NCT02549092)
Timeframe: Baseline, Week 26

,
Interventionscore on a scale (Least Squares Mean)
Motor symptoms at nightPD symptoms at nightDisturbed sleep
LCIG-2.79-1.53-2.89
Optimized Medical Treatment-2.21-1.77-4.88

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Change From Baseline at Week 26 in UPDRS Parts I, III, and IV Score

UPDRS is an investigator-used rating tool to follow the longitudinal course of Parkinson's disease of 42 total questions. Part I (Questions 1 - 4), Part II (Questions 5 - 17), Part III (Questions 18 - 31), and Part IV (Questions 32 - 42). Questions 35 - 38 and 40 - 42 are 2-point (0 and 1), all other questions are 5-point (0 - 4). Part I is the sum of Questions 1 - 4; scores range from 0 to 16 with lower value desirable. Part III is the sum of Questions 18 - 31 (Questions 20 - 26 apply to multiple body parts, resulting in 27 answers total); scores range from 0 to 108 with lower value desirable. Part IV is the sum of Questions 32 - 42; scores range from 0 to 23 with lower value desirable. (NCT02549092)
Timeframe: Baseline, Week 26

,
Interventionscore on a scale (Least Squares Mean)
Part IPart IIIPart IV
LCIG0.39-0.89-2.31
Optimized Medical Treatment0.201.32-0.61

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Systolic Blood Pressure

SBP measured in the seated position (NCT02553265)
Timeframe: up to Week 14

InterventionmmHg (Mean)
Placebo126
High-Dose Carbidopa126
Low-Dose Carbidopa126

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Severity of Hypotension During an Active Stand Test

Lowest blood pressure captured during 3 minutes of standing (NCT02553265)
Timeframe: up to Week 14

InterventionmmHg (Mean)
Placebo96
High-Dose Carbidopa91
Low-Dose Carbidopa96

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Number of Participants Who Reported Worsening of OH Symptoms or Dropped Out Because of Worsening OH While on Active Study Drug

(NCT02553265)
Timeframe: Up to 90 days

InterventionParticipants (Count of Participants)
Placebo0
High-Dose Carbidopa0
Low-Dose Carbidopa0

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Number of Participants With Abnormal Electrocardiographic Interval Patterns

Clinically significant changes in the intervals of characteristic electrocardiographic patterns (NCT02553265)
Timeframe: Up to 90 days

InterventionParticipants (Count of Participants)
Placebo0
High-Dose Carbidopa0
Low-Dose Carbidopa0

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Number of Participants Who Displayed Clinically Significant Values in Urine Safety Parameters

Clinically significant values on urinalysis, urine safety parameters related to treatment with carbidopa (NCT02553265)
Timeframe: Up to 90 days

InterventionParticipants (Count of Participants)
Placebo0
High-Dose Carbidopa0
Low-Dose Carbidopa0

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Number of Participants Who Displayed Clinical Significant Laboratory Values on CBC or Metabolic Panel

Clinically significant laboratory values include complete blood count (CMC) and metabolic panel related to treatment with carbidopa (NCT02553265)
Timeframe: Up to 90 days

InterventionParticipants (Count of Participants)
Placebo0
High-Dose Carbidopa0
Low-Dose Carbidopa0

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Morning Surge in Systolic BP on Awakening From Sleep (24-h)

The morning surge will be calculated as the difference between the mean systolic blood pressure during the hour that included the lowest blood pressure during sleep and maximum value detected within 2-h of awakening from sleep (NCT02553265)
Timeframe: up to Week 14

InterventionmmHg (Mean)
Placebo44
High-Dose Carbidopa19
Low-Dose Carbidopa20

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Highest Systolic Blood Pressure

Maximum blood pressure captured on 24-h ambulatory monitoring (NCT02553265)
Timeframe: Day 1 of treatment period

InterventionmmHg (Mean)
Placebo175
High-Dose Carbidopa157
Low-Dose Carbidopa150

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Heart Rate

Heart rate in the seated position (NCT02553265)
Timeframe: up to Week 14

Interventionbeats per minute (BPM) (Mean)
Placebo76
High-Dose Carbidopa72
Low-Dose Carbidopa78

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Frequency of Worsening Symptoms Noted in the Patient's Diary

A tailored questionnaire to examine symptoms over the treatment period and the used of as needed medications. Each day will have a designated page. Since nausea/vomiting and hypertension occur together in FD we will use a diary consisting of a simplified version of the Rhodes Index 44 symptoms of nausea/retching, with items addressing vomiting/throwing up omitted, as most participants will have had anti-reflux surgery to prevent vomiting (fundoplication), graded on a 5-point scale (appendix 2). The diary will also include space to write down any adverse events on a daily basis. (NCT02553265)
Timeframe: Up to 90 Days

Interventionsymptoms (Number)
Placebo0
High-Dose Carbidopa0
Low-Dose Carbidopa0

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Coefficient of Systolic BP Variability (Daytime)

The measurement of blood pressure variability based on the standard deviation that also takes into account the underlying level of BP. (NCT02553265)
Timeframe: up to Week 14

InterventionmmHg (Mean)
Placebo19
High-Dose Carbidopa16
Low-Dose Carbidopa15

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Average Systolic Blood Pressure Variability (Daytime)

Patients with FD undergo ambulatory BP monitoring while keeping a detailed log of their activities (sleep/meal-times/medications/posture/symptoms). Variability in blood pressure overtime will be measured by the standard deviation during awake hours (NCT02553265)
Timeframe: up to Week 14

InterventionmmHg (Mean)
Placebo22.92
High-Dose Carbidopa18.71
Low-Dose Carbidopa16.92

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Number of Participants With Significant Changes in Body Mass That Resulted in Discontinuation From the Study.

Body mass measured in kg (NCT02553265)
Timeframe: Up to 90 days

InterventionParticipants (Count of Participants)
Placebo0
High-Dose Carbidopa0
Low-Dose Carbidopa0

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24-h Urinary Norepinephrine Excretion

Norepinephrine concentration determined from a 24-hour urine sample in a bottle shielded from light containing preservative. Patients will be instructed to refrigerate their sample and bring it on the morning of their visit in a cool bag. (NCT02553265)
Timeframe: up to Week 14

Interventionpg/mL (Mean)
Placebo16
High-Dose Carbidopa6
Low-Dose Carbidopa8

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Change in Morning UPDRS Part III (Motor) Scores

The Unified Parkinson's Disease Rating Scale (UPDRS) is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. UPDRS part III (motor) score is calculated as the sum of the individual UPDRS items 18-31, each of which are measured on a 5-point scale (i.e., 0 is normal and 4 indicates a severe abnormality). UPDRS part III was done as a motor examination on Day 1 before the first dose of standard oral LD/DDI and at the same time on Day 28. The range of score values is from 0 to 132. Higher scores correlate with greater motor impairment. (NCT02577523)
Timeframe: Baseline to Day 28

Interventionscore on a scale (Least Squares Mean)
ND0612 Regimen 1 - 24-hr Infusion-19.1
ND0612 Regimen 2 - 14-hr Infusion-10.7

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"Change in Daily OFF Time"

"Based on Parkinson's disease symptom assessment, ON time is when there is good response to medication and few symptoms. OFF time is when no there is no response to medication and significant motor symptoms. An ON/OFF Log was completed by a blinded rater starting before the first dose of LD/DDI and following the first dose at 30 min intervals for 8 hrs. The changes in OFF time as hours (normalized to 16 hrs of awake time) during the 8 hrs of data collection were estimated. Negative change from baseline for OFF time indicates improvement." (NCT02577523)
Timeframe: Baseline to Day 28

InterventionHours (Least Squares Mean)
ND0612 Regimen 1 - 24-hr Infusion-2.8
ND0612 Regimen 2 - 14-hr Infusion-1.3

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"Change in Daily Good ON Time as Assessed by a Blinded Rater"

"Based on Parkinson's disease symptom assessment, ON time is when there is good response to medication and few symptoms. OFF time is when no there is no response to medication and significant motor symptoms. Good ON time means ON time without troublesome dyskinesia (involuntary muscle movement), defined as the sum of ON time without dyskinesia and ON time with non-troublesome dyskinesia. An ON/OFF Log was completed by a blinded rater starting before the first dose of LD/DDI and following the first dose at 30 min intervals for 8 hrs. Daily total scores were normalized to 16 hours of awake time. Positive change from baseline for ON time without dyskinesia and for Good ON time, and a negative change in ON time with moderate or severe (troublesome) dyskinesia indicates improvement." (NCT02577523)
Timeframe: Baseline to Day 28

InterventionHours (Least Squares Mean)
ND0612 Regimen 1 - 24-hr Infusion3.7
ND0612 Regimen 2 - 14-hr Infusion2.8

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CGI-Improvement (CGI-I) Score as Assessed by Investigator

"Global improvement was rated by the investigator or designee using Clinical Global Impression of Improvement (CGI-I). The CGI-I employs a 7-point scale with 1 being very much improved and 7 being very much worse for improvement rating." (NCT02577523)
Timeframe: Baseline to Day 28

,
InterventionParticipants (Count of Participants)
Day 3: Subjects with improvementsDay 28: Subjects with improvementsCGI-I score on Day 28: Very much improvedCGI-I score on Day 28: Much improvedCGI-I score on Day 28: Minimally improvedCGI-I score on Day 28: No changeCGI-I score on Day 28: Minimally worseCGI-I score on Day 28: Much worseCGI-I score on Day 28: Very much worse
ND0612 Regimen 1 - 24-hr Infusion10145631100
ND0612 Regimen 2 - 14-hr Infusion9132745000

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"The Percentage of Subjects With Full ON at Approximately 08:00 and Approximately 09:00, as Determined by the Subject"

"Based on Parkinson's disease symptom assessment, ON time is when there is good response to medication and few symptoms. OFF time is when no there is no response to medication and significant motor symptoms. Subjects were asked to indicate when exactly in their opinion they had turned to full ON (i.e. an ON response comparable to the ON response to standard oral LD/DDI treatment). Higher percentage of subjects with full ON on Day 28 indicates improvement." (NCT02577523)
Timeframe: Baseline to Day 28

InterventionParticipants (Count of Participants)
"Baseline: Full ON by 8:00""Baseline: Full ON by 9:00""Day 28: Full ON by 8:00""Day 28: Full ON by 9:00"
ND0612 Regimen 1 - 24-hr Infusion37713

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"Percentage of Subjects Who Achieved at Least Certain Percent Reduction in Average Daily Normalized OFF Time"

"Determination of percentage of subjects who had a complete and 50% reduction in daily OFF time from baseline to Day 28 during 8 hrs observations." (NCT02577523)
Timeframe: Baseline to Day 28

InterventionParticipants (Count of Participants)
"Subjects who Achieved 50% reduction in average daily normalized OFF time""Subjects who Achieved complete reduction in average daily normalized OFF"
ND0612 Regimen 1 - 24-hr Infusion128

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Change in UPDRS Part II (ADL) Scores

The Unified Parkinson's disease rating scale (UPDRS) is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The UPDRS Part II (activity of daily living) score was calculated as the sum of the individual UPDRS items 5-17. The Part II score is the sum of the answers to the 13 questions that comprise Part II, each of which are measured on a 5-point scale (i.e., 0 is normal and 4 indicates a severe abnormality). The range of score values is from 0 to 52. Higher scores correlate with greater impairments for daily activities. (NCT02577523)
Timeframe: Baseline to Day 28

Interventionscore on a scale (Least Squares Mean)
ND0612 Regimen 1 - 24-hr Infusion-2.9
ND0612 Regimen 2 - 14-hr Infusion-1.9

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Change in PDSS-2 Total Score

The quality of night sleep was rated by the subjects using the Parkinson's Disease Sleep Scale (PDSS)-2, which includes questions addressing 15 commonly reported symptoms associated with sleep disturbance in PD. Each question is assessed from 0 (Always) to 10 (Never). The total score values range from 0 to 150. Higher scores indicate a lower quality of sleep, i.e., a reduction in the score indicates an improvement in sleep quality. (NCT02577523)
Timeframe: Baseline to Day 27

Interventionscore on a scale (Least Squares Mean)
ND0612 Regimen 1 - 24-hr Infusion-4.1
ND0612 Regimen 2 - 14-hr Infusion-0.8

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Change in PDQ-39 Summary Index and the 8-dimension Scores

Subjects were requested to rate their quality of life using the Quality of Life in Parkinson's Disease (PDQ)-39, a 39-item, self-administered questionnaire with 8 discrete dimensions (mobility, activities of daily living, emotional well-being, stigma, social support, cognition, communication, and bodily discomfort.). The PDQ-39 Summary Index is the sum of the dimension scores divided by the number of dimensions. The total score values range from 0 to 100%. Higher scores indicate a worse quality of life. (NCT02577523)
Timeframe: Baseline to Day 27

Interventionscore on a scale (Least Squares Mean)
ND0612 Regimen 1 - 24-hr Infusion-7.5
ND0612 Regimen 2 - 14-hr Infusion-3.7

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Mean Change From Baseline to Week 12 in Parkinson's Disease Questionnaire-8 (PDQ-8) Summary Index

The Parkinson's Disease Questionnaire-8 (PDQ-8) is a disease-specific instrument designed to measure aspects of health that are relevant to participants with PD, and which may not be included in general health status questionnaires. The PDQ-8 is a self-administered questionnaire. Each item is scored on the following 5-point scale: 0 = Never, 1 = Occasionally, 2 = Sometimes, 3 = Often, 4 = Always (or cannot do at all, if applicable). Higher scores are consistently associated with the more severe symptoms of the disease such as tremors and stiffness. The results are presented as a summary index. The PDQ-8 summary index ranges from 0 to 100, where lower scores indicate a better perceived health status. Negative changes from baseline indicate improvement. (NCT02799381)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
Optimized Medical Treatment (OMT)-4.95
Levodopa-Carbidopa Intestinal Gel (LCIG)-21.62

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Mean Change From Baseline to Week 12 in ON Time Without Troublesome Dyskinesia

The Parkinson's Disease (PD) Symptom Diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected study visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e., 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. ON time is when PD symptoms are well controlled by the drug, and OFF time is when PD symptoms are not adequately controlled by the drug. Positive change from baseline for ON time without troublesome dyskinesia indicates improvement. (NCT02799381)
Timeframe: Baseline, Week 12

Interventionhours (Least Squares Mean)
Optimized Medical Treatment (OMT)-0.12
Levodopa-Carbidopa Intestinal Gel (LCIG)3.15

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Mean Change From Baseline to Week 12 in OFF Time

The Parkinson's Disease (PD) Symptom Diary is completed every 30 minutes for the full 24 hours of each of 3 days prior to selected study visits. It reflects both time awake and time asleep. Daily totals are normalized to a 16-hour scale (i.e., 16 hours of awake time). The normalized totals for the 3 days prior to the visit are averaged for the analysis. ON time is when PD symptoms are well controlled by the drug, and OFF time is when PD symptoms are not adequately controlled by the drug. Negative change from baseline for OFF time indicates improvement. (NCT02799381)
Timeframe: Baseline, Week 12

Interventionhours (Least Squares Mean)
Optimized Medical Treatment (OMT)0.18
Levodopa-Carbidopa Intestinal Gel (LCIG)-2.17

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Mean Clinical Global Impression of Change (CGI-C) Score at Week 12

The Clinical Global Impression of Change (CGI-C) score is a clinician's rating scale for assessing Global Improvement of Change. The CGI-C rates improvement by 7 categories: very much improved (1), much improved (2), minimally improved (3), no change (4), minimally worse (5), much worse (6), very much worse (7). The CGI-C score ranges from 1 to 7, with lower scores indicating improvement. (NCT02799381)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
Optimized Medical Treatment (OMT)4.58
Levodopa-Carbidopa Intestinal Gel (LCIG)2.48

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Mean Change From Baseline to Week 12 in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score (Motor Examination)

The Unified Parkinson's Disease Rating Scale (UPDRS) is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part III score is the sum of the 27 answers related to Motor Examination, and ranges from 0-108. Higher scores are associated with more disability. Negative values indicate improvement from baseline. (NCT02799381)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
Optimized Medical Treatment (OMT)-0.87
Levodopa-Carbidopa Intestinal Gel (LCIG)-4.93

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Mean Change From Baseline to Week 12 in Unified Parkinson's Disease Rating Scale (UPDRS) Part II Score (Activities of Daily Living)

The Unified Parkinson's Disease Rating Scale (UPDRS) is an Investigator-used rating tool to follow the longitudinal course of Parkinson's disease. The Part II score is the sum of the answers to the 13 questions related to Activities of Daily Living, and ranges from 0-52. Higher scores are associated with more disability. Negative values indicate improvement from baseline. (NCT02799381)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
Optimized Medical Treatment (OMT)0.21
Levodopa-Carbidopa Intestinal Gel (LCIG)-5.33

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Mean Change From Baseline to Week 12 in Unified Dyskinesia Rating Scale (UDysRS) Total Score

The Unified Dyskinesia Rating Scale (UDysRS) is a tool used to assess dyskinesia in Parkinson's disease (PD) and contains both self-evaluation questions and items that are assessed directly by the physician to objectively rate the abnormal movements associated with PD. Part 1 contains 11 questions about the ON time dyskinesia and the impact of ON-dyskinesia on experiences of daily living. Part 2 contains 4 questions about OFF-dystonia rating. Part 3 contains 7 questions about objective evaluation of dyskinesia impairment and Part 4 contains 4 questions regarding dyskinesia disability. Each question is scored with respect to severity, which is rated on a scale where 0 = normal, 1 = slight, 2 = mild, 3= moderate and 4 = severe. The UDysRS total score is obtained by summing the item scores, ranging from 0 to 104. Higher scores are associated with more disability. Negative changes from baseline indicate improvement. (NCT02799381)
Timeframe: Baseline, Week 12

Interventionunits on a scale (Least Squares Mean)
Optimized Medical Treatment (OMT)-2.33
Levodopa-Carbidopa Intestinal Gel (LCIG)-17.37

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Levodopa Peak Plasma Concentration (Cmax)

Levodopa peak plasma concentration (Cmax) (NCT03055936)
Timeframe: 24 hours

Interventionng/ml (Mean)
A1 50 mg LD + 12.5 mg CD685.92
B1 50 mg LD + 65 mg CD775.36
C1 50 mg LD + 65 mg CD + 50 mg ODM-104908.86
D1 50 mg LD + 65 mg CD + 100 mg ODM-104950.38
A2 100 mg LD + 25 mg CD1519.92
B2 100 mg LD + 65 mg CD1593.85
C2 100 mg of LD + 65 mg CD + 50 mg ODM-1041855.38
D2 100 mg LD + 65 mg CD + 100 mg of ODM-1041955.38
A3 150 mg LD + 37.5 mg CD2105.45
B3 150 mg LD + 65 mg CD2072.73
C3 150 mg LD + 65 mg CD + 50 mg ODM-1042545.45
D3 150 mg LD + 65 mg CD + 100 mg ODM-1042616.67
A4 (Sinemet) 100 mg IR LD + 25 mg CD1634.62
B4 100 mg LD + 65 mg CD1367.36
C4 100 mg LD + 25 mg CD + 100 mg ODM-1041711.43
D4 100 mg LD + 65 mg CD + 100 mg ODM-1041717.69

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Levodopa Area Under the Concentration-time Curve From Time 0 to the 24 h PK Sample (AUC0-24) Time 0 to the 24 h PK Sample (AUC0-24)

Levodopa Area Under the Concentration-time Curve From Time 0 to the 24 h PK Sample (AUC0-24) (NCT03055936)
Timeframe: During 24 hours

Interventionh*ng/ml (Mean)
A1 50 mg LD + 12.5 mg CD4300
B1 50 mg LD + 65 mg CD5423
C1 50 mg LD + 65 mg CD + 50 mg ODM-1047439
D1 50 mg LD + 65 mg CD + 100 mg ODM-1049046
A2 100 mg LD + 25 mg CD9643
B2 100 mg LD + 65 mg CD10709
C2 100 mg of LD + 65 mg CD + 50 mg ODM-10415257
D2 100 mg LD + 65 mg CD + 100 mg of ODM-10417896
A3 150 mg LD + 37.5 mg CD14285
B3 150 mg LD + 65 mg CD15805
C3 150 mg LD + 65 mg CD + 50 mg ODM-10422473
D3 150 mg LD + 65 mg CD + 100 mg ODM-10425672
A4 (Sinemet) 100 mg IR LD + 25 mg CD7965
B4 100 mg LD + 65 mg CD8994
C4 100 mg LD + 25 mg CD + 100 mg ODM-10413866
D4 100 mg LD + 65 mg CD + 100 mg ODM-10416310

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Fluctuation of Levodopa Cmax/Cmin, Tau

Explore fluctuation of levodopa Cmax/Cmin, tau. Figures given are per performed statistical analysis. (NCT03055936)
Timeframe: 16 hours

Intervention(ng/ml)/(ng/ml) (Mean)
A1 50 mg LD + 12.5 mg CD12.24
B1 50 mg LD + 65 mg CD7.49
C1 50 mg LD + 65 mg CD + 50 mg ODM-1044.16
D1 50 mg LD + 65 mg CD + 100 mg ODM-1043.02
A2 100 mg LD + 25 mg CD11.00
B2 100 mg LD + 65 mg CD8.32
C2 100 mg of LD + 65 mg CD + 50 mg ODM-1044.46
D2 100 mg LD + 65 mg CD + 100 mg of ODM-1043.35
A3 150 mg LD + 37.5 mg CD8.45
B3 150 mg LD + 65 mg CD7.16
C3 150 mg LD + 65 mg CD + 50 mg ODM-1043.67
D3 150 mg LD + 65 mg CD + 100 mg ODM-1042.82
A4 (Sinemet) 100 mg IR LD + 25 mg CD19.52
B4 100 mg LD + 65 mg CD9.18
C4 100 mg LD + 25 mg CD + 100 mg ODM-1047.63
D4 100 mg LD + 65 mg CD + 100 mg ODM-1043.04

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Percent Compliance

Percent compliance is defined as the percent of study participants who take greater than or equal to 70% of the assigned dosage (NCT03115827)
Timeframe: 7 weeks

InterventionParticipants (Count of Participants)
Arm 111

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Maximum Tolerated Dose

The mean maximum tolerated dose of droxidopa reached by the study participants (NCT03115827)
Timeframe: Week 4 to Week 7

Interventionmg/day (Mean)
Arm 11053

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Change in Stop-Signal Reaction Time From Baseline to Week 7

The Stop-Signal reaction time is a computerized test that assesses reaction time and response inhibition (NCT03115827)
Timeframe: baseline and week 7

Interventionchange in SSRT in seconds (Mean)
Arm 1-14.38

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Time to Response (Defined as Improvement of 30% in MDS-UPDRS Part III Score From Baseline)

MDS-UPDRS is a clinimetric assessment of subjective and objective symptoms and signs of Parkinson's disease created by the Movement Disorder Society with high internal consistency. MDS-UPDRS retains the four-scale structure with a reorganization of the various subscales. The subscale used in this study is Part III, motor examination (18 items). The subscale now has 0-4 ratings, where 0 = normal, 1 = slight, 2 = mild, 3 = moderate, and 4 = severe. (NCT03541356)
Timeframe: 2 hours

Interventionminutes (Median)
Placebo45.0
L-dopa 35 mgNA
L-dopa 70 mg54.0
L-dopa 140 mg30.0
L-dopa 70 mg/Carbidopa 7 mgNA

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Tmax of Carbidopa

Time to reach the maximum concentration of carbidopa (NCT03541356)
Timeframe: For L-dopa 70 mg/carbidopa 7 mg, plasma samples were taken at pre-dose, 5, 10, 15, 30, 45, 60, 90 and 120 minutes post-dose.

Interventionminutes (Mean)
L-dopa 70 mg/Carbidopa 7 mg44.50

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"Subjective Time to ON as Evaluated by the Investigator"

"Investigators will evaluate subjects' fluctuations in motor functions at 15, 30, 45, 60, 90, 120, and 240 minutes post-dose to determine if they are ON." (NCT03541356)
Timeframe: 4 hours

Interventionminutes (Median)
Placebo45.0
L-dopa 35 mg240.0
L-dopa 70 mg30.0
L-dopa 140 mg30.0
L-dopa 70 mg/Carbidopa 7 mg240.0

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Tmax of L-dopa

Time to Reach the Maximum Plasma Concentration (Cmax) of L-dopa (NCT03541356)
Timeframe: For L-dopa 35 mg, 70 mg, 140 mg plasma samples were taken at pre-dose, 30, 60, 90 and 120 minutes post-dose. For L-dopa 70 mg/carbidopa 7 mg, plasma samples were taken at pre-dose, 5, 10, 15, 30, 45, 60, 90 and 120 minutes post-dose.

Interventionminutes (Mean)
L-dopa 35 mg60.17
L-dopa 70 mg66.00
L-dopa 140 mg70.00
L-dopa 70 mg/Carbidopa 7 mg92.00

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Area Under the Curve (AUC) of Change From Baseline in MDS-UPDRS Part III Scores

MDS-UPDRS is a clinimetric assessment of subjective and objective symptoms and signs of Parkinson's disease created by the Movement Disorder Society with high internal consistency. MDS-UPDRS retains the four-scale structure with a reorganization of the various subscales. The subscale used in this study is Part III, motor examination (18 items). The subscale now has 0-4 ratings, where 0 = normal, 1 = slight, 2 = mild, 3 = moderate, and 4 = severe. (NCT03541356)
Timeframe: For L-dopa 35 mg, 70 mg, 140 mg, assessments were made at pre-dose, 15, 30, 45, 60, 90, 120 minutes post-dose. For L-dopa 70 mg/carbidopa 7 mg, assessments were made at pre-dose, 50, 60, 90, 120 minutes post-dose.

,,,,
Interventionchange in score*minutes (Mean)
15 minutes30 minutes45 minutes60 minutes90 minutes120 minutes
L-dopa 140 mg-67.50-232.83-426.83-630.58-968.08-1210.58
L-dopa 35 mg-33.50-138.58-201.92-296.50-575.17-903.67
L-dopa 70 mg7.00-50.50-210.50-424.25-896.67-1324.83
L-dopa 70 mg/Carbidopa 7 mgNA-230.08NA-295.25-362.75-465.25
Placebo-26.25-237.63-264.92-573.88-919.75-1215.75

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Cumulative Number of Responders (Defined as Improvement of 30% in MDS-UPDRS Part III Score From Baseline)

MDS-UPDRS is a clinimetric assessment of subjective and objective symptoms and signs of Parkinson's disease created by the Movement Disorder Society with high internal consistency. MDS-UPDRS retains the four-scale structure with a reorganization of the various subscales. The subscale used in this study is Part III, motor examination (18 items). The subscale now has 0-4 ratings, where 0 = normal, 1 = slight, 2 = mild, 3 = moderate, and 4 = severe. (NCT03541356)
Timeframe: From time = 0 to 2 hours post-dose

,,,,
InterventionParticipants (Count of Participants)
15 minutes30 minutes45 minutes60 minutes90 minutes120 minutes
L-dopa 140 mg255555
L-dopa 35 mg011122
L-dopa 70 mg113455
L-dopa 70 mg/Carbidopa 7 mgNA1NA233
Placebo034666

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AUC0-2h for Carbidopa

Area under the concentration time curve for carbidopa (NCT03541356)
Timeframe: Plasma samples were taken at pre-dose, 5, 10, 15, 30, 45, 60, 90 and 120 minutes post-dose and AUC calculated from these from time 0 to 120 minutes.

Interventionhours*ng/mL (Mean)
L-dopa 70 mg/Carbidopa 7 mg114.80

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AUC0-2hr for L-dopa

Area under the Plasma Concentration-time Curve for L-dopa from Time = 0 to Time = 2 hours post dose. For the L-dopa 35 mg, L-dopa 70 mg, L-dopa 140 mg plasma samples were taken at pre-dose, 30, 60, 90 and 120 minutes post-dose. For the L-dopa 70 mg/carbidopa 7 mg treatment arm, plasma samples were taken at pre-dose, 5, 10, 15, 30, 45, 60, 90 and 120 minutes post-dose. (NCT03541356)
Timeframe: For L-dopa 35 mg, 70 mg, 140 mg plasma samples were taken at pre-dose, 30, 60, 90 and 120 minutes post-dose. For L-dopa 70 mg/carbidopa 7 mg, plasma samples were taken at pre-dose, 5, 10, 15, 30, 45, 60, 90 and 120 min

Interventionhours*ng/mL (Mean)
L-dopa 35 mg240.71
L-dopa 70 mg463.49
L-dopa 140 mg725.29
L-dopa 70 mg/Carbidopa 7 mg552.75

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"Assessment of Time to ON as Evaluated by Subject Self-assessment"

"Subjects were asked to provide self-assessments at 15, 30, 45, 60, 90, 120, and 240 minutes post-dose as to whether they considered themselves to be ON." (NCT03541356)
Timeframe: 4 hours

Interventionminutes (Median)
Placebo40.0
L-dopa 35 mg240.0
L-dopa 70 mg39.0
L-dopa 140 mg30.0
L-dopa 70 mg/Carbidopa 7 mg232.5

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Cmax of Carbidopa

Maximum concentration of carbidopa (NCT03541356)
Timeframe: For L-dopa 70 mg/carbidopa 7 mg, plasma samples were taken at pre-dose, 5, 10, 15, 30, 45, 60, 90 and 120 minutes post-dose.

Interventionng/mL (Mean)
L-dopa 70 mg/Carbidopa 7 mg80.23

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Cmax of L-dopa

Maximum Observed Plasma Concentration of L-dopa from Time = 0 to Time = 2 hours post dose. For the L-dopa 35 mg, L-dopa 70 mg, L-dopa 140 mg plasma samples were taken at pre-dose, 30, 60, 90 and 120 minutes post-dose. For the L-dopa 70 mg/carbidopa 7 mg treatment arm, plasma samples were taken at pre-dose, 5, 10, 15, 30, 45, 60, 90 and 120 minutes post-dose. (NCT03541356)
Timeframe: For L-dopa 35 mg, 70 mg, 140 mg plasma samples were taken at pre-dose, 30, 60, 90 and 120 minutes post-dose. For L-dopa 70 mg/carbidopa 7 mg, plasma samples were taken at pre-dose, 5, 10, 15, 30, 45, 60, 90 and 120 minutes post-dose.

Interventionng/mL (Mean)
L-dopa 35 mg185.80
L-dopa 70 mg362.68
L-dopa 140 mg643.65
L-dopa 70 mg/Carbidopa 7 mg445.75

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Duration of Response, Where Response is Defined as an Improvement of 30% in MDS-UPDRS Part III Score From Baseline.

MDS-UPDRS is a clinimetric assessment of subjective and objective symptoms and signs of Parkinson's disease created by the Movement Disorder Society with high internal consistency. MDS-UPDRS retains the four-scale structure with a reorganization of the various subscales. The subscale used in this study is Part III, motor examination (18 items). The subscale has 0-4 ratings, where 0 = normal, 1 = slight, 2 = mild, 3 = moderate, and 4 = severe. Maximum score is 132, minimum is zero. High score means worse outcome. (NCT03541356)
Timeframe: 2 hours

Interventionminutes (Mean)
Placebo66.9
L-dopa 35 mg23.3
L-dopa 70 mg57.3
L-dopa 140 mg37.5
L-dopa 70 mg/Carbidopa 7 mg15.0

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Mean Maximum Change From Baseline in MDS-UPDRS Part III Score

MDS-UPDRS is a clinimetric assessment of subjective and objective symptoms and signs of Parkinson's disease created by the Movement Disorder Society with high internal consistency. MDS-UPDRS retains the four-scale structure with a reorganization of the various subscales. The subscale used in this study is Part III, motor examination (18 items). The subscale now has 0-4 ratings, where 0 = normal, 1 = slight, 2 = mild, 3 = moderate, and 4 = severe. The total of the subscales has a maximum value of 132 and a minimum value of zero. Lower scores indicate better motor function. A negative change from baseline indicates improved motor function. (NCT03541356)
Timeframe: From time = 0 to 2 hours post-dose

Interventionscore on a scale (Mean)
Placebo-15.5
L-dopa 35 mg-14.0
L-dopa 70 mg-20.3
L-dopa 140 mg-15.3
L-dopa 70 mg/Carbidopa 7 mg-7.5

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Mean Change From Baseline in MDS-UPDRS Score Over 2 Hours for C1, C2, C3 and Change From Baseline at 30, 60, 90, 120 Minutes for C4, in MDS-UPDRS Part III Score

MDS-UPDRS is a clinimetric assessment of subjective and objective symptoms and signs of Parkinson's disease created by the Movement Disorder Society with high internal consistency. MDS-UPDRS retains the four-scale structure with a reorganization of the various subscales. The subscale used in this study is Part III, motor examination (18 items). The subscale has 0-4 ratings, where 0 = normal, 1 = slight, 2 = mild, 3 = moderate, and 4 = severe. Maximum score is 132, minimum is zero. High score means worse outcome. For the L-dopa 35 mg, L-dopa 70 mg, L-dopa 140 mg treatment groups, assessment occurred at pre-dose, 15, 30, 45, 60, 90 and 120 minutes post-dose. For the L-dopa 70 mg/carbidopa 7 mg treatment arm, assessment occurred at pre-dose, 30, 60, 90 and 120 minutes post-dose. (NCT03541356)
Timeframe: For L-dopa 35 mg, 70 mg, 140 mg, assessment occurred at pre-dose, 15, 30, 45, 60, 90 and 120 minutes post-dose. For L-dopa 70 mg/carbidopa 7 mg, assessment occurred at pre-dose, 30, 60, 90 and 120 minutes post-dose.

,,,,
Interventionscore on a scale (Mean)
15 minutes30 minutes45 minutes60 minutes90 minutes120 minutes
L-dopa 140 mg-9.0-12.7-13.7-13.5-9.0-7.2
L-dopa 35 mg-4.5-6.7-4.7-6.8-10.3-11.0
L-dopa 70 mg0.8-8.5-12.8-15.7-15.5-13.8
L-dopa 70 mg/Carbidopa 7 mgNA-3.7NA-0.8-3.7-3.2
Placebo-3.5-8.5-13.5-12.5-10.8-8.8

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Number of Participants With Treatment Emergent Adverse Events

Assessment of treatment emergent adverse events after single dosing with INP103 (L-dopa or L-dopa/carbidopa) (NCT03541356)
Timeframe: 7 days

InterventionParticipants (Count of Participants)
Placebo5
L-dopa 35 mg5
L-dopa 70 mg3
L-dopa 140 mg4
L-dopa 70 mg/Carbidopa 7 mg5

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Single Task Gait Speed

Patients' gait was assessed as walking speed in cm/s on a 15' walking course. Patients walked at their usual or normal speed for a total of 27' (starting and ending at a point 6 feet prior to and after the 15' course to eliminate acceleration and deceleration effects). Two trials were completed, and gait speed was based on the average of 2 trials. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT03761030)
Timeframe: Change from Baseline to 8 Weeks

Interventioncm/s (Mean)
L-DOPA Arm3.7
Placebo Arm-3.8

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Change From Baseline Hamilton Rating Scale for Depression 24-Item Scale to Study Completion (8 Weeks)

The Hamilton Rating Scale for Depression (HRSD) is a 24-item questionnaire used as an indication of depression and a guide to evaluate recovery. Total scores range from 0-74, not including atypical symptoms sub-scale. A score of 16 or above is typically considered to indicate the presence of depressive symptoms. Higher scores indicate greater severity. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT03761030)
Timeframe: Change from Baseline to 8 Weeks

Interventionunits on a scale (Mean)
L-DOPA Arm-2.2
Placebo Arm-3.6

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Pattern Comparison Test

"This test required participants to identify whether two visual patterns are the same or not the same (responses were made by pressing a yes or no button). Patterns were either identical or varied on one of three dimensions: color (all ages), adding/taking something away (all ages), or one versus many. Scores reflect the number of correct items completed in 90 s, with scores ranging from a minimum of 0 to a maximum of 30. Items were designed to minimize the number of errors that were made. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations." (NCT03761030)
Timeframe: Change from Baseline to 8 Weeks

InterventionNumber of items correctly completed (Mean)
L-DOPA Arm0.6
Placebo Arm1.2

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Letter Comparison Test

Subjects were asked to determine whether two strings of letters are the same or different. There are 3 pages and the subject is given 30 seconds per page. Scoring is based on the number answered correctly. Scores range from 0 to 21, with the higher the number, the better the score. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT03761030)
Timeframe: Change from Baseline to 8 Weeks

InterventionNumber of items correctly completed (Mean)
L-DOPA Arm1.2
Placebo Arm0.7

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Inventory of Depressive Symptomatology--Self Report (IDS-SR)

The Inventory of Depressive Symptomatology--Self Report (IDS-SR) is a rating scale for depressive symptoms based on standard diagnostic criteria for Major Depressive Disorder. The scale ranges from 0-84 with higher scores indicating more severe depression. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT03761030)
Timeframe: Change from Baseline to 8 Weeks

Interventionunits on a scale (Mean)
L-DOPA Arm-9.8
Placebo Arm-12.1

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Digit Symbol Test

The Digit Symbol test is a neuropsychological test measuring information processing speed. It consists of digit-symbol pairs (e.g. 1/-,2/┴ ... 7/Λ,8/X,9/=) followed by a list of digits. Under each digit the subject should write down the corresponding symbol as fast as possible. The number of correct symbols within the allowed time is measured. Score ranges from 0-133, with higher scores indicating higher information processing speed. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT03761030)
Timeframe: Change from Baseline to 8 Weeks

InterventionNumber of items correctly completed (Mean)
L-DOPA Arm2.8
Placebo Arm5.0

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Wechsler Adult Intelligence System Digit Symbol Substitution Test

Evaluation of cognitive functioning in which a participant is given a key of numbers 1-9, each paired with a unique symbol. Below the key, is a series of random numbers which they participant must fill in the corresponding symbol for. They have 120 seconds to complete the task. Participants receive one point for each correct symbol written. Score range from 0-133. (NCT04325503)
Timeframe: 7-13 days after beginning treatment

Interventionscore on a scale (Mean)
Carbidopa and Carbidopa-Levodopa Treatment65.89

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Mini Balance Evaluation Systems Test (Mini-BESTest)

The mini-BESTest is a 14-item evaluation of dynamic balance and postural control. It is scored from 0-28, with higher scores indicating better performance. (NCT04325503)
Timeframe: 7-13 days after beginning treatment

Interventionscore on a scale (Mean)
Carbidopa and Carbidopa-Levodopa Treatment22.89

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Montreal Cognitive Assessment (MoCA)

Cognitive assessment used to evaluate individuals for mild cognitive impairment. Scores range from 0-30. Higher scores indicate better performance. (NCT04325503)
Timeframe: 7-13 days after beginning treatment

Interventionscore on a scale (Mean)
Carbidopa and Carbidopa-Levodopa Treatment27.44

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Cognitive Z-score

Composite variable calculated based on the Stroop Color Word Interference test I-IV (assessment of attention) and Delis-Kaplan Executive Function System Trail Making test I-V (assessment of executive function and working memory), adjusted based on normative data for older adults. A z-score of 0 represents the control population mean. Scores above the mean indicate better performance, while scores below the mean indicate poorer performance. (NCT04325503)
Timeframe: 7-13 days after beginning treatment

InterventionZ-score (Mean)
Carbidopa and Carbidopa-Levodopa Treatment0.271

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Average Gait Speed

Average gait speed as measured using wearable sensors worn during walking tasks. Gait speed is measured in meters per second. (NCT04325503)
Timeframe: 7-13 days after beginning treatment.

Interventionmeters/second (Mean)
Carbidopa and Carbidopa-Levodopa Treatment0.973

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Movement Disorder Society Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part III Total

MDS-UPDRS part III is the motor examination portion of the UPDRS evaluation. Scores range from 0-132, with higher scores indicating greater severity of motor symptoms. (NCT04325503)
Timeframe: 7-13 days after beginning treatment

Interventionunits on a scale (Mean)
Carbidopa and Carbidopa-Levodopa Treatment31.18

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Short Activities-specific Balance Confidence Scale Score

Participants rate their level of confidence in doing specific activities without losing their balance as a percentage, with 0% indicating they are certain they would lose their balance and 100% indicating that they are certain they can complete the task without losing their balance. Scores on these 6 questions are averaged to determine total sABC score. Scores range from 0-100, with higher scores indicating greater balance confidence. (NCT04325503)
Timeframe: 7-13 days after beginning treatment

Interventionscore on a scale (Median)
Carbidopa and Carbidopa-Levodopa Treatment70.00

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Change From Baseline to Week 12 of the Double-Blind Treatment Period in Quality of Life Assessed by the EuroQol 5-Dimension Questionnaire (EQ-5D-5L) Summary Index

The EQ-5D-5L is a standardized non-disease specific instrument for describing and valuing health-related quality of life. The EQ-5D-5L descriptive system comprises 5 dimensions of health (mobility, self -care, usual activities, pain/discomfort, and anxiety/depression) to describe the subject's current health state. Each dimension comprises 5 levels with corresponding numeric scores, where 1 indicates no problems, and 5 indicates extreme problems. The health status is converted to an index value using the country-specific weighted scoring algorithm for the United States (US). The summary index value for the US ranges from a worst score of -0.109 to a best score of 1. An increase in the EQ-5D-5L total score indicates improvement. (NCT04380142)
Timeframe: Baseline (Week 0) up to Week 12 of the double-blind treatment period

Interventionscore on a scale (Least Squares Mean)
LD/CD + Placebo for ABBV-9510.002
ABBV-951 + Placebo for LD/CD0.051

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Number of Participants With Treatment-Emergent Adverse Events (TEAEs) During the Oral LD/CD Stabilization Period

An adverse event (AE) is defined as any untoward medical occurrence in a participant, which does not necessarily have a causal relationship with treatment. An AE, whether associated with study drug or not, meeting any of the following criteria is considered a serious AE (SAE): results in death; is life-threatening; results in hospitalization or prolongation of hospitalization; is a congenital anomaly; results in persistent or significant disability/incapacity; is an important medical event requiring medical or surgical intervention to prevent a serious outcome. The severity of each AE is rated as mild, moderate, or severe, and having either a reasonable possibility or no reasonable possibility of relationship to study drug. Events were considered treatment emergent if they arose after the first dose of study drug. (NCT04380142)
Timeframe: From first dose of stabilization period treatment up to the first dose of the double-blind treatment period

InterventionParticipants (Count of Participants)
Any TEAEAny Severe TEAEAny TEAE Considered Related to Study DrugAny TEAE Considered Associated With COVID-19 InfectionAny TEAE Leading to Premature Discontinuation of Study DrugAny TEAE Leading DeathAny Serious TEAEDeaths Related to COVID-19
LD/CD Stabilization Period413203040

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Number of Participants With TEAEs During the Double-Blind Treatment Period

An AE is defined as any untoward medical occurrence in a participant, which does not necessarily have a causal relationship with treatment. An AE, whether associated with study drug or not, meeting any of the following criteria is considered an SAE: results in death; is life-threatening; results in hospitalization or prolongation of hospitalization; is a congenital anomaly; results in persistent or significant disability/incapacity; is an important medical event requiring medical or surgical intervention to prevent a serious outcome. The severity of each AE is rated as mild, moderate, or severe, and having either a reasonable possibility or no reasonable possibility of relationship to study drug. Adverse events of special interest include polyneuropathy, weight loss, somnolence, hallucinations/psychosis. Events were considered treatment emergent if they arose after the first dose of study drug. (NCT04380142)
Timeframe: From first dose of double-blind treatment up to Week 12 of the double-blind treatment period plus 30 days

,
InterventionParticipants (Count of Participants)
Any TEAEAny Serious TEAEAny TEAE Leading to DeathAny TEAE Leading to Study Drug DiscontinuationAny Severe TEAEAny TEAE Considered Related to Study DrugAny Serious TEAE Considered Related With Infusion PumpAll Deaths (Includes Non-Treatment-Emergent Deaths)Deaths Related to COVID-19Any Adverse Event of Special Interest
ABBV-951 + Placebo for LD/CD63601675230059
LD/CD + Placebo for ABBV-9514241111501025

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Number of Participants With Potentially Clinically Significant Changes From Baseline in Hematology, Chemistry, Urinalysis, Special Laboratory Parameters, Vital Signs, and Electrocardiograms (ECGs)

Measures analyzed for prespecified potentially clinically significant criteria: hematology (hematocrit, hemoglobin, red blood cells, white blood cells, neutrophils, bands, lymphocytes, monocytes, basophils, eosinophils, platelets, mean corpuscular hemoglobin, mean corpuscular volume concentration, prothrombin time, activated partial thromboplastin time), laboratory (blood urea nitrogen, creatinine, creatine phosphokinase, bilirubin, alanine aminotransferase, aspartate aminotransferase, lactate dehydrogenase, gamma-glutamyl transpeptidase, alkaline phosphatase, sodium, potassium, calcium, phosphorus, uric acid, total protein, albumin, glucose, sodium bicarbonate, chloride, triglycerides, cholesterol, magnesium), special lab criteria (vitamin B12, vitamin B6, folate, homocysteine, methylmalonic acid), vital signs (diastolic and systolic blood pressure, pulse rate), ECG (heart rate, PR, and QTcF interval), urinalysis (specific gravity, ketones, pH, protein, glucose, blood, bilirubin). (NCT04380142)
Timeframe: Screening up to Week 12 of the double-blind treatment period

,
InterventionParticipants (Count of Participants)
HematologyChemistryUrinalysisSpecial Laboratory ParametersVital SignsECGs
ABBV-951 + Placebo for LD/CD000000
LD/CD + Placebo for ABBV-951000000

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Number of Participants With Affirmative Responses on the Columbia-Suicide Severity Rating Scale (C-SSRS) Across All Study Post-Baseline Visits During the Double-Blind Treatment Period

The C-SSRS is a systematically administered instrument developed to track suicidal adverse events across a treatment study. The instrument is designed to assess suicidal behavior and ideation, track and assess all suicidal events, as well as the lethality of attempts. Suicidal ideation categories include the following: wish to be dead; nonspecific active suicidal thoughts; active suicidal ideation without intent to act; active suicidal ideation with some intent to act but no plan; active suicidal ideation with plan and intent. Suicidal behavior categories include the following: actual attempt; interrupted attempt; aborted attempt; preparatory acts or behavior; suicidal behavior; completed suicide. (NCT04380142)
Timeframe: Screening up to Week 12 of the double-blind treatment period

,
InterventionParticipants (Count of Participants)
Participants With Any Suicidal IdeationsParticipants With Any Suicidal BehaviorsParticipants With Any Suicidal Behaviors or IdeationsParticipants With Non-Suicidal Self-Injurious Behavior
ABBV-951 + Placebo for LD/CD5050
LD/CD + Placebo for ABBV-9512020

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Number of Participants With a Subscore > 5 For Questionnaire for Impulsive-Compulsive Disorders in Parkinson's Disease - Ration Scale (QUIP-RS) at Any Time During the Double-Blind Treatment Period

The QUIP-RS measures the severity of symptoms and support a diagnosis of impulse control disorders and related disorders in PD. QUIP-RS subscores include gambling (score 0 to 16), sex (score 0 to 16), buying (score 0 to 16), eating (score 0 to 16), hobbyism-punding (score 0 to 32), and PD medication use (score 0 to 16). Higher scores represent a worse outcome. (NCT04380142)
Timeframe: Baseline (Week 0) up to Week 12 of the double-blind treatment period

,
InterventionParticipants (Count of Participants)
Impulse Control Disorder: Buying ScoreImpulse Control Disorder: Eating ScoreImpulse Control Disorder: Gambling ScoreImpulse Control Disorder: Sex ScoreAdditional Disorder: Hobbyism Punding ScoreAdditional Disorder: PD Medication Use Score
ABBV-951 + Placebo for LD/CD360476
LD/CD + Placebo for ABBV-9513526125

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Number of Participants With Irritation Grade Numeric Grade >= 5 or Letter Grade >= D on the Infusion Site Irritation Scale Across All Study Post-Baseline Visits

The investigator or qualified designee evaluated the infusion site area (abdomen). A 2-part (numeric and letter grading) evaluation scale was used to assess irritation. Irritation - Numeric Grades: 0 = No evidence of irritation; 1 = Minimal erythema, barely perceptible; 2 = Moderate erythema, readily visible; or minimal edema, or minimal papular response; 3 = Erythema and papules; 4 = Definite edema; 5 = Erythema, edema, and papules; 6 = Vesicular eruption; 7 = Strong reaction spreading beyond the test site. Irritation - Letter Grades: A = No finding; B = Slight glazed appearance; C = Marked glazing; D = Glazing with peeling and cracking; E = Glazing with fissures; F = Film of dried serous exudates covering all or portion of the patch site; G = Small petechial erosions and/or scabs. (NCT04380142)
Timeframe: Day 2 up to Week 12 of the double-blind treatment period plus 30 days

,
InterventionParticipants (Count of Participants)
At Least 1 Observation of Numeric Grade >= 5At Least 1 Observation of Letter Grade >= DAt Least 1 Observation of Numeric Grade >= 5 or Letter Grade >= DAt Least 1 Observation of Numeric Grade >= 5 and Letter Grade >= D
ABBV-951 + Placebo for LD/CD106106
LD/CD + Placebo for ABBV-9510000

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Change From Baseline to Week 12 of the Double-Blind Treatment Period in Parkinson's Disease Sleep Scale-2 (PDSS-2) Total Score

The PDSS-2 addresses PD-specific sleep disturbances such as restless leg syndrome (RLS), morning akinesia, pain, and sleep apnea. The frequency is assessed for the 15 sleep problems based on a 5-point Likert-type scale (ranging from 0 [never] to 4 [very often]). Scores are calculated for each of the 3 domains (motor symptoms at night, PD symptoms at night, and disturbed sleep) as well as a total score. The PDSS-2 domain scores range from 0 to 20 and the total score is a sum of the 3 domains and ranges from 0 to 60. Higher scores indicate higher frequency and more severe impact of PD on sleep. (NCT04380142)
Timeframe: Baseline (Week 0) up to Week 12 of the double-blind treatment period

Interventionscore on a scale (Least Squares Mean)
LD/CD + Placebo for ABBV-951-2.52
ABBV-951 + Placebo for LD/CD-7.92

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Change From Baseline to Week 12 of the Double-Blind Treatment Period in Quality of Life Assessed by Parkinson's Disease Questionnaire 39 Item (PDQ-39) Summary Index Score

The PDQ-39 is a disease-specific instrument designed to measure aspects of health that are relevant to participants with PD, and which may not be included in general health status questionnaires. It evaluates the 8 dimensions of mobility, activities of daily living, emotional well-being, stigma, social support, cognition, and communication. Data from the PDQ-39 can be presented in either domain scores or as a summary index score. The full range of the PDQ-39 Summary Index score is from 0 (no patient-related symptoms/quality of life unaffected) to 100 (highest patient-related symptoms/low quality of life). (NCT04380142)
Timeframe: Baseline (Week 0) up to Week 12 of the double-blind treatment period

Interventionscore on a scale (Least Squares Mean)
LD/CD + Placebo for ABBV-951-2.28
ABBV-951 + Placebo for LD/CD-6.38

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Change From Baseline to Week 12 of the Double-Blind Treatment Period in Movement Disorder Society - Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Part II Score

The Part II MDS-UPDRS is an investigator-used rating tool to follow the longitudinal course of PD. MDS-UPDRS is multimodal scale assessing impairment and disability. Part II assesses the participant's motor experiences of daily living with 13 questions. (The numeric score for each question is between 0-4; 0=Normal,1=Slight,2=Mild,3=Moderate,4=Severe). Part II scores range from 0 to 52, with higher scores indicating more severe symptoms of PD. (NCT04380142)
Timeframe: Baseline (Week 0) up to Week 12 of the double-blind treatment period

Interventionscore on a scale (Least Squares Mean)
LD/CD + Placebo for ABBV-951-1.06
ABBV-951 + Placebo for LD/CD-2.65

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"Change From Baseline to Week 12 of the Double-Blind Treatment Period in Average Daily Normalized Off Time (Hours)"

"Off time is defined as periods of poor mobility, tremor, slowness, and stiffness and was assessed by the PD Diary." (NCT04380142)
Timeframe: Baseline (Week 0) up to Week 12 of the double-blind treatment period

Interventionhours (Least Squares Mean)
LD/CD + Placebo for ABBV-951-0.96
ABBV-951 + Placebo for LD/CD-2.75

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Change From Baseline to Week 12 of the Double-Blind Treatment Period in Interquartile Range of Bradykinesia Score (BK75-BK25) as Assessed by the PKG Wearable Device

The PKG wearable device is an innovative mobile health technology that provides continuous, objective, ambulatory assessment of the symptoms of PD including tremor, bradykinesia, dyskinesia, and daytime somnolence. For each participant, the PKG watch collected data continuously and an algorithm calculated a bradykinesia score every 2 minutes between 9am-6pm across multiple days. Among these scores for this participant at this visit, the median of all the score values is defined as BK50 (there is no prespecified range of scores). BK75-BK25 is the difference between the third quartile (BK75) and first quartile (BK25) bradykinesia scores, and this interquartile range is a measure of variability of bradykinesia. A higher score indicates a higher degree of variability in bradykinesia scores. The BK75 and BK 25 scores for all participants across all visits were then analyzed with mixed-effect model for repeated measures (MMRM) and the LS mean (model-based mean) was obtained from the model. (NCT04380142)
Timeframe: Baseline (Week 0) up to Week 12 of the double-blind treatment period

Interventionscore on a scale (Least Squares Mean)
LD/CD + Placebo for ABBV-9510.13
ABBV-951 + Placebo for LD/CD0.31

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"Change From Baseline to Week 12 of the Double-Blind Treatment Period in Average Daily Normalized On Time Without Dyskinesia (Hours)"

"On time is defined as periods of good motor symptom control, and was assessed by the PD diary. The normalized On time without dyskinesia is defined as the hours of average daily normalized On time without dyskinesia as assessed by the PD Diary (normalized to a 16-hour waking day averaged over 3 consecutive days).~Baseline value is defined as the average of normalized On time without dyskinesia collected over the 3 PD Diary days before randomization." (NCT04380142)
Timeframe: Baseline, Week 12 of the double-blind treatment period

Interventionhours (Least Squares Mean)
LD/CD + Placebo for ABBV-9511.32
ABBV-951 + Placebo for LD/CD3.13

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"Change From Baseline to Week 12 of the Double-Blind Treatment Period in Average Daily Normalized On Time Without Troublesome Dyskinesia"

"On time is defined as periods of good motor symptom control, and was assessed by the Parkinson's Disease (PD) diary. The normalized On time without troublesome dyskinesia is the sum of the normalized On time without dyskinesia and the normalized On time with non-troublesome dyskinesia. On time without dyskinesia plus On time with non-troublesome dyskinesia are based on the PD Diary (normalized to a 16-hour waking day averaged over 3 consecutive days). Baseline value is defined as the average of normalized On time without troublesome dyskinesia collected over the 3 PD Diary days before randomization." (NCT04380142)
Timeframe: Baseline (Week 0) up to Week 12 of the double-blind treatment period

Interventionhours (Least Squares Mean)
LD/CD + Placebo for ABBV-9510.97
ABBV-951 + Placebo for LD/CD2.72

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"Early Morning Off Status (Morning Akinesia) at Week 12 of the Double-Blind Treatment Period"

"Early morning Off status is assessed by the PD Diary as percentage of participants with early morning Off upon waking up at Week 12, based on the first morning symptom upon awakening on the last valid PD Diary day at Week 12.~Off time is defined as periods of poor mobility, tremor, slowness, and stiffness and was assessed by the PD Diary." (NCT04380142)
Timeframe: Week 12 of the double-blind treatment period

Interventionpercentage of participants (Number)
LD/CD + Placebo for ABBV-95163.3
ABBV-951 + Placebo for LD/CD17.0

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Change From Baseline to Week 12 of the Double-Blind Treatment Period in Interquartile Range of Dyskinesia Score (DK75-DK25) as Assessed by the PKG Wearable Device

The PKG wearable device is an innovative mobile health technology that provides continuous, objective, ambulatory assessment of the symptoms of PD including tremor, bradykinesia, dyskinesia, and daytime somnolence. For each participant, the PKG watch collected data continuously and an algorithm calculated a dyskinesia score every 2 minutes between 9am-6pm across multiple days. Among these scores for this participant at this visit, the median of all the score values is defined as DK50 (there is no prespecified range of scores). DK75-DK25 is the difference between the third quartile (DK75) and first quartile (DK25) dyskinesia scores, and this interquartile range is a measure of variability of dyskinesia. A higher score indicates a higher degree of variability in dyskinesia scores. The DK75 and DK25 scores for all participants across all visits were then analyzed with mixed-effect model for repeated measures (MMRM) and the LS mean (model-based mean) was obtained from the model. (NCT04380142)
Timeframe: Baseline (Week 0) up to Week 12 of the double-blind treatment period

Interventionscore on a scale (Least Squares Mean)
LD/CD + Placebo for ABBV-9512.72
ABBV-951 + Placebo for LD/CD-2.77

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Change From Baseline to Week 12 of the Double-Blind Treatment Period in Median Bradykinesia Score (BK50) as Assessed by the Parkinson's KinetiGraph/Personal KinetiGraph (PKG) Wearable Device

The PKG wearable device is an innovative mobile health technology that provides continuous, objective, ambulatory assessment of the symptoms of PD including tremor, bradykinesia, dyskinesia, and daytime somnolence. For each participant, the PKG watch collected data continuously and an algorithm calculated a bradykinesia score every 2 minutes between 9am-6pm across multiple days. Among these scores for this participant at this visit, the median of all the score values is defined as BK50. A higher score indicates worse bradykinesia (there is no prespecified range of scores). The BK50 scores for all participants across all visits were then analyzed with mixed-effect model for repeated measures (MMRM) and the LS mean (model-based mean) was obtained from the model. (NCT04380142)
Timeframe: Baseline (Week 0) up to Week 12 of the double-blind treatment period

Interventionscore on a scale (Least Squares Mean)
LD/CD + Placebo for ABBV-951-0.34
ABBV-951 + Placebo for LD/CD1.38

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Change From Baseline to Week 12 of the Double-Blind Treatment Period in Median Dyskinesia Score (DK50) as Assessed by the PKG Wearable Device

The PKG wearable device is an innovative mobile health technology that provides continuous, objective, ambulatory assessment of the symptoms of PD including tremor, bradykinesia, dyskinesia, and daytime somnolence. For each participant, the PKG watch collected data continuously and an algorithm calculated a dyskinesia score every 2 minutes between 9am-6pm across multiple days. Among these scores for this participant at this visit, the median of all the score values is defined as DK50. A higher score indicates worse dyskinesia (there is no prespecified range of scores). The DK50 scores for all participants across all visits were then analyzed with mixed-effect model for repeated measures (MMRM) and the LS mean (model-based mean) was obtained from the model. (NCT04380142)
Timeframe: Baseline (Week 0) up to Week 12 of the double-blind treatment period

Interventionscore on a scale (Least Squares Mean)
LD/CD + Placebo for ABBV-9511.02
ABBV-951 + Placebo for LD/CD-1.71

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[18F]-FDOPA PET Measure in Striatal Region of Interest

"[18F]-FDOPA PET quantifies dopamine synthesis capacity in specific brain regions. Lower [18F]-FDOPA uptake in the striatum has been associated with increased depression severity and worse cognitive and motor function in patients. Because [18F]-FDOPA uptake may be sensitive to deficits in dopamine synthesis capacity in older depressed patients, in this study depressed participants at baseline underwent a PET scan to quantify relative [18F]-FDOPA influx rate in the nucleus accumbens bilaterally. Time activity curves (TACs) were extracted within the nucleus accumbens region of interest (ROI) as the average radioactivity in the ROI over time. The occipital lobe, which has the lowest dopamine concentration in the brain, was used as the reference region to yield the Kocc measure of [18F]-FDOPA influx rate. Higher [18F]-FDOPA influx rate (kocc) numbers indicate greater relative influx rate and therefore greater dopamine synthesis capacity." (NCT04493320)
Timeframe: Baseline (prior to LDOPA or placebo administration)

Interventionmin^-1 (Number)
L-DOPA, Then Placebo0.0107

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Change in Digit Symbol Test Following Step 1

The Digit Symbol test is a neuropsychological test measuring information processing speed. It consists of digit-symbol pairs (e.g. 1/-,2/┴ ... 7/Λ,8/X,9/=) followed by a list of digits. Under each digit the subject should write down the corresponding symbol as fast as possible. The number of correct symbols within the allowed time is measured. Score ranges from 0-133, with higher scores indicating higher information processing speed. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT04493320)
Timeframe: Change from Baseline to 3 weeks (post Step 1)

InterventionNumber of items correctly completed (Mean)
L-DOPA, Then Placebo-0.5
Placebo, Then L-DOPA9.0

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Change in Quick Inventory for Depressive Symptomatology (QIDS) Following Step 2

QIDS-16-item, a participant-rated measure of depressive symptomatology. The total score ranges from 0 to 27, with higher scores indicative of greater severity. In contrast to other measures, which were not available at Week 4, Week 4 was selected as the baseline for post-Step 2 change on the QIDS since it followed the taper period taking place between study Steps. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT04493320)
Timeframe: Change from Week 4 to Week 7 (post-Step 2)

Interventionunits on a scale (Number)
L-DOPA, Then Placebo-1.0
Placebo, Then L-DOPA0.0

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Change in Quick Inventory for Depressive Symptomatology (QIDS) Following Step 1

QIDS-16-item, a participant-rated measure of depressive symptomatology. The total score ranges from 0 to 27, with higher scores indicative of greater severity. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT04493320)
Timeframe: Change from Baseline to 3 weeks (post Step 1)

Interventionunits on a scale (Mean)
L-DOPA, Then Placebo-1.0
Placebo, Then L-DOPA-5.0

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Change in Pattern Comparison Test Following Step 2

"This test required participants to identify whether two visual patterns are the same or not the same (responses were made by pressing a yes or no button). Patterns were either identical or varied on one of three dimensions: color (all ages), adding/taking something away (all ages), or one versus many. Scores reflect the number of correct items completed in 90 s, with scores ranging from a minimum of 0 to a maximum of 30. Items were designed to minimize the number of errors that were made. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations." (NCT04493320)
Timeframe: Change from Week 3 to Week 7 (post-Step 2)

InterventionNumber of items correctly completed (Number)
L-DOPA, Then Placebo1.0
Placebo, Then L-DOPA-3.5

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Change in Pattern Comparison Test Following Step 1

"This test required participants to identify whether two visual patterns are the same or not the same (responses were made by pressing a yes or no button). Patterns were either identical or varied on one of three dimensions: color (all ages), adding/taking something away (all ages), or one versus many. Scores reflect the number of correct items completed in 90 s, with scores ranging from a minimum of 0 to a maximum of 30. Items were designed to minimize the number of errors that were made. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations." (NCT04493320)
Timeframe: Change from Baseline to 3 weeks (post Step 1)

InterventionNumber of items correctly completed (Mean)
L-DOPA, Then Placebo-1.0
Placebo, Then L-DOPA1.75

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Change in Digit Symbol Test Following Step 2

The Digit Symbol test is a neuropsychological test measuring information processing speed. It consists of digit-symbol pairs (e.g. 1/-,2/┴ ... 7/Λ,8/X,9/=) followed by a list of digits. Under each digit the subject should write down the corresponding symbol as fast as possible. The number of correct symbols within the allowed time is measured. Score ranges from 0-133, with higher scores indicating higher information processing speed. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT04493320)
Timeframe: Change from Week 3 to Week 7 (post-Step 2)

InterventionNumber of items correctly completed (Number)
L-DOPA, Then Placebo5.0
Placebo, Then L-DOPA4.0

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Change in Single Task Gait Speed Test Following Step 1

Patients' gait was assessed as walking speed in cm/s on a 15' walking course. Patients walked at their usual or normal speed for a total of 27' (starting and ending at a point 6 feet prior to and after the 15' course to eliminate acceleration and deceleration effects). Two trials were completed, and gait speed was based on the average of 2 trials. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT04493320)
Timeframe: Change from Baseline to 3 weeks (post Step 1)

Interventioncm/s (Mean)
L-DOPA, Then Placebo4.6
Placebo, Then L-DOPA11.9

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Change in Single Task Gait Speed Test Following Step 2

Patients' gait was assessed as walking speed in cm/s on a 15' walking course. Patients walked at their usual or normal speed for a total of 27' (starting and ending at a point 6 feet prior to and after the 15' course to eliminate acceleration and deceleration effects). Two trials were completed, and gait speed was based on the average of 2 trials. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT04493320)
Timeframe: Change from Week 3 to Week 7 (post-Step 2)

Interventioncm/s (Number)
L-DOPA, Then Placebo-17.2
Placebo, Then L-DOPA7.0

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Change in Montgomery Asberg Depression Rating Scale Following Step 1

Secondary outcome measured by the total score of the clinician rated MADRS, a measure of depression severity. The MADRS total score range is 0-60, where higher scores indicate greater depression severity. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT04493320)
Timeframe: Change from Baseline to 3 weeks (post Step 1)

Interventionunits on a scale (Mean)
L-DOPA, Then Placebo-1.0
Placebo, Then L-DOPA-3.0

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Change in Letter Comparison Test Following Step 2

Subjects were asked to determine whether two strings of letters are the same or different. There are 3 pages and the subject is given 30 seconds per page. Scoring is based on the number answered correctly. Scores range from 0 to 21, with the higher the number, the better the score. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT04493320)
Timeframe: Change from Week 3 to Week 7 (post-Step 2)

InterventionNumber of items correctly completed (Number)
L-DOPA, Then Placebo0.5
Placebo, Then L-DOPA-1.5

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Change in Letter Comparison Test Following Step 1

Subjects were asked to determine whether two strings of letters are the same or different. There are 3 pages and the subject is given 30 seconds per page. Scoring is based on the number answered correctly. Scores range from 0 to 21, with the higher the number, the better the score. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT04493320)
Timeframe: Change from Baseline to 3 weeks (post Step 1)

InterventionNumber of items correctly completed (Mean)
L-DOPA, Then Placebo-0.5
Placebo, Then L-DOPA-0.25

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Change in Effort Expenditure for Rewards Task (EEfRT) Following Step 1

"In this task participants decide whether to work harder for a larger reward (high number of finger presses with their pinky) or expend less energy (low number of presses with a dominant index finger) for a lesser reward, with lower rewards being $1 dollar and higher rewards ranging from $1.20 to $5. Participants receive information about the probability of winning on each trial regardless of their pick and one trial from each run is randomly picked for payout. The primary output on this task is the percentage of time participants choose the high cost / high reward option on the EEfRT. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations.~This task was not completed following Step 2 of the study, so there are no EEfRT data reported for change in task performance following Step 2." (NCT04493320)
Timeframe: Change from Baseline to 3 weeks (post Step 1)

Interventionpercentage of high effort choices (Mean)
L-DOPA, Then Placebo0.18
Placebo, Then L-DOPA0.0

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Change in Montgomery Asberg Depression Rating Scale Following Step 2

Secondary outcome measured by the total score of the clinician rated MADRS, a measure of depression severity. The MADRS total score range is 0-60, where higher scores indicate greater depression severity. In contrast to other measures, which were not available at Week 4, Week 4 was selected as the baseline for post-Step 2 change on the MADRS since it followed the taper period taking place between study Steps. Because the full sample was not enrolled and the results are considered unreliable, no statistical analysis was performed other than calculating means and standard deviations. (NCT04493320)
Timeframe: Change from Week 4 to Week 7 (post-Step 2)

Interventionunits on a scale (Number)
L-DOPA, Then Placebo4.0
Placebo, Then L-DOPA2.0

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Montgomery Asberg Depression Rating Scale (MADRS)

"The MADRS is a standard rater-administered measure of depression severity that will be used to measure changes in depressive symptoms during the study.~The total MADRS score ranges from a minimum score of 0 to a maximum score of 60. Higher scores indicate more severe depression." (NCT04650217)
Timeframe: Week 0 (Baseline)

Interventionscore on a scale (Number)
Non-randomized Participants25

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