dihydroxyphenylalanine has been researched along with Bilateral Headache in 4 studies
Dihydroxyphenylalanine: A beta-hydroxylated derivative of phenylalanine. The D-form of dihydroxyphenylalanine has less physiologic activity than the L-form and is commonly used experimentally to determine whether the pharmacological effects of LEVODOPA are stereospecific.
dopa : A hydroxyphenylalanine carrying hydroxy substituents at positions 3 and 4 of the benzene ring.
Timeframe | Studies, this research(%) | All Research% |
---|---|---|
pre-1990 | 3 (75.00) | 18.7374 |
1990's | 0 (0.00) | 18.2507 |
2000's | 0 (0.00) | 29.6817 |
2010's | 0 (0.00) | 24.3611 |
2020's | 1 (25.00) | 2.80 |
Authors | Studies |
---|---|
de Matos Balsalobre, N | 1 |
Dos Santos, E | 1 |
Mariano Dos Santos, S | 1 |
Arena, AC | 1 |
Konkiewitz, EC | 1 |
Ziff, EB | 1 |
Nazari Formagio, AS | 1 |
Leite Kassuya, CA | 1 |
HODGE, JV | 1 |
NYE, ER | 1 |
EMERSON, GW | 1 |
Schwab, RS | 1 |
Poskanzer, DC | 1 |
England, AC | 1 |
Young, RR | 1 |
Tamarkin, NR | 1 |
Goodwin, FK | 1 |
Axelrod, J | 1 |
Trial | Phase | Enrollment | Study Type | Start Date | Status | ||
---|---|---|---|---|---|---|---|
Open-Label Safety Study of ADS-5102 (Amantadine HCl) Extended Release Capsules for the Treatment of Levodopa Induced Dyskinesia (LID)[NCT02202551] | Phase 3 | 223 participants (Actual) | Interventional | 2014-07-31 | Completed | ||
[information is prepared from clinicaltrials.gov, extracted Sep-2024] |
"To evaluate clinical progression of PD as assessed by the MDS-UPDRS, combined score, Parts I, II, and III.~Part I - non-motor experiences of daily living; Part II - motor experiences of daily living; Part III - motor examination. Parts I and II each contain 13 questions measured on a 5-point scale (0-4). Part III contains 18 objective rater assessments of the motor signs of PD measured on a 5-point scale (0-4).~Total range for combined score (Part I-III) is = 0-176. Generally for MDS-UPDRS scores and sub-scores, the lower the score, the better.~Parts I, II, and III are summed to make the total score." (NCT02202551)
Timeframe: Up to 101 weeks. MDS-UPDRS was performed at the following visits: Screening, Week 8, Week 16, Week 28, Week 40, Week 52, Week 64, Week 76, Week 88, Week 100 (or ET).
Intervention | units on a scale (Mean) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Baseline | Change from Baseline at Week 8 | Change from Baseline at Week 16 | Change from Baseline at Week 28 | Change from Baseline at Week 40 | Change from Baseline at Week 52 | Change from Baseline at Week 64 | Change from Baseline at Week 76 | Change from Baseline at Week 88 | Change from Baseline at Week 100 | |
ADS-5102 1A | 41.8 | 1.2 | 1.6 | 4.8 | 7.5 | 13.2 | 8.8 | 11.7 | 11.3 | 11.4 |
ADS-5102 Group 1P | 45.6 | -2.8 | -1.4 | 1.5 | -0.4 | 2.6 | 2.6 | 7.3 | 3.7 | 3.7 |
ADS-5102 Group 2 | 52.8 | 0.8 | 5.7 | 6.5 | 1.6 | 6.1 | 6.1 | 9.4 | 6.4 | 6.5 |
ADS-5102 Group 3 | 52.4 | -5.3 | -5.2 | -5.3 | -4.8 | -4.6 | -4.6 | -4.9 | 0.9 | 4.1 |
"This component (Questions 4.1 - 4.6) includes time spent with dyskinesia, functional impact of dyskinesia, time spent in OFF state, functional impact of fluctuations, complexity of motor fluctuations, painful OFF-state dystonia. Questions 4.1-4.6 are summed to make the Part IV score.~Generally for MDS-UPDRS scores and sub-scores, the lower the score, the better. Total range for Part IV is = 0-24" (NCT02202551)
Timeframe: 100 Weeks. MDS-UPDRS was performed at the following visits: Screening, Week 8, Week 16, Week 28, Week 40, Week 52, Week 64, Week 76, Week 88, Week 100 (or ET).
Intervention | units on a scale (Mean) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Baseline | Change in Baseline from Week 8 | Change in Baseline from Week 16 | Change from Baseline at Week 28 | Change from Baseline at Week 40 | Change from Baseline at Week 52 | Change from Baseline at Week 64 | Change from Baseline at Week 76 | Change from Baseline at Week 88 | Change from Baseline at Week 100 | |
Group 1a | 6.5 | -0.2 | -0.8 | -0.3 | 0.0 | 0.2 | 0.4 | 0.9 | 0.4 | 0.4 |
Group 1P | 9.6 | -3.4 | -3.2 | -3.3 | -2.8 | -2.9 | -3.3 | -2.9 | -2.8 | -2.4 |
Group 2 | 9.8 | -3.6 | -1.1 | -1.4 | -2.9 | -2.5 | -1.9 | -2.7 | -3.7 | -3.6 |
Group 3 | 10.4 | -4.0 | -3.9 | -4.4 | -4.7 | -3.6 | -2.5 | -3.7 | -4.3 | -3.6 |
The primary objective of the study was to evaluate the safety and tolerability of ADS-5102 oral capsules, an extended release (ER) formulation of amantadine, administered at a dose of 340 mg once daily at bedtime for the treatment of levodopa-induced dyskinesia (LID) in subjects with Parkinson's disease (PD). (NCT02202551)
Timeframe: Up to 101 weeks
Intervention | Participants (Count of Participants) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
AE | Study drug-related AE | SAEs | Permanent discontinuation due to AE | Permanent discontinuation due to drug-related AE | Mild AEs | Moderate AEs | Mild drug-related AE | Moderate drug-related AE | Severe drug-related AE | |
Group 1a | 57 | 31 | 16 | 12 | 4 | 12 | 25 | 16 | 12 | 3 |
Group 1P | 70 | 45 | 21 | 21 | 15 | 13 | 36 | 15 | 23 | 7 |
Group 2 | 23 | 16 | 6 | 6 | 4 | 3 | 13 | 3 | 12 | 1 |
Group 3 | 55 | 32 | 17 | 10 | 8 | 11 | 26 | 5 | 22 | 5 |
4 other studies available for dihydroxyphenylalanine and Bilateral Headache
Article | Year |
---|---|
Potential anti-arthritic and analgesic properties of essential oil and viridiflorol obtained from Allophylus edulis leaves in mice.
Topics: Analgesics; Animals; Anti-Inflammatory Agents; Carrageenan; Dexamethasone; Dihydroxyphenylalanine; D | 2023 |
MONOAMINE-OXIDASE INHIBITORS, BROAD BEANS, AND HYPERTENSION.
Topics: Dihydroxyphenylalanine; Fabaceae; Headache; Hypertension; Monoamine Oxidase Inhibitors; Oxidoreducta | 1964 |
Amantadine in Parkinson's disease. Review of more than two years' experience.
Topics: Aged; Amantadine; Ataxia; Constipation; Depression; Diarrhea; Dihydroxyphenylalanine; Drug Synergism | 1972 |
Rapid elevation of biogenic amine metabolites in human CSF following probenecid.
Topics: Administration, Oral; Affective Symptoms; Dihydroxyphenylalanine; Female; Headache; Humans; Hydroxyi | 1970 |