Page last updated: 2024-11-11

brl 28500

Description Research Excerpts Clinical Trials Roles Classes Pathways Study Profile Bioassays Related Drugs Related Conditions Protein Interactions Research Growth Market Indicators

Description

ticarcillin-clavulanic acid: combination of ticarcillin and clavulanic acid; used against gram-negative rods [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

Cross-References

ID SourceID
PubMed CID6437075
CHEMBL ID3137696
SCHEMBL ID1650350
MeSH IDM0127299

Synonyms (22)

Synonym
brl-28500
4-oxa-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3-(2-hydroxyethylidene)-7-oxo-, (2r,3z,5r)-, mixt. with (2s,5r,6r)-6-(((2r)-carboxy-3-thienylacetyl)amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid
4-oxa-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3-(2-hydroxyethylidene)-7-oxo-, (2r-(2-alpha,3z,5-alpha))-, mixt. with (2s-(2-alpha,5-alpha,6-beta(s*)))-6-((carboxy-3-thienylacetyl)amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxyl
ticarcillin-clavulanic acid
ticarcillin disodium and clavulanate potassium
ticar & ca
clavulanic acid & ticarcillin
brl 28500
timentin (ticarcillin disodium/clavulanate potassium)
86482-18-0
ticarcillin & clavulanic acid
(2r,3z,5r)-3-(2-hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo[3.2.0]heptane-2-carboxylic acid; (2s,5r,6r)-6-[[(2r)-3-hydroxy-3-oxo-2-(3-thienyl)propanoyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
4-oxa-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3-(2-hydroxyethylidene)-7-oxo-, (2r-(2-alpha,3z,5-alpha))-, & (2s-(2-alpha,5-alpha,6-beta(s*)))-6-((carboxy-3-thienylacetyl)amino)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid
timentin in plastic container
clavulanic acid - ticarcillin mixt.
ticarcillin - clavulanic acid mixt.
ticarcillin and clavulanic acid
ticarcillin-clavulanic acid mixt.
CHEMBL3137696
SCHEMBL1650350
DTXSID10235588
(2s,5r,6r)-6-[[(2r)-2-carboxy-2-thiophen-3-ylacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid;(2r,3z,5r)-3-(2-hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo[3.2.0]heptane-2-carboxylic acid

Research Excerpts

Toxicity

ExcerptReferenceRelevance
" No other drug-related adverse effects were noted."( Comparison of the safety and efficacy of parenteral ticarcillin/clavulanate and clindamycin/gentamicin in serious intra-abdominal infections.
Arous, EJ; Doern, GV; Fairchild, PG; Fink, MP; Helsmoortel, CM; Moriarty, KP; Townsend, PL, 1989
)
0.28
" Safety evaluation studies carried out in the animals established as suitable for studying the toxicology of ticarcillin have shown no unexpected synergistic or antagonistic toxic effects of Timentin not predicted from the toxicological evaluation of clavulanate alone."( Safety of ticarcillin disodium/potassium clavulanate.
Cockburn, A; Jackson, D; Mellows, G; Tasker, TC; White, D, 1986
)
0.27
" Of the 1659 patients studied, 161 adverse reactions were reported from 151 patients (9."( An evaluation of the safety and tolerance of Timentin.
Croydon, EA; Hermoso, C, 1986
)
0.27
" Nine patients had PICC line complications and five patients had drug adverse events."( Continuous infusion of ticarcillin-clavulanate for home treatment of serious infections: clinical efficacy, safety, pharmacokinetics and pharmacodynamics.
Carney, J; Carroll, J; McWhinney, B; Munckhof, WJ; Neilson, G; Neilson, J; Whitby, M, 2005
)
0.33

Pharmacokinetics

ExcerptReferenceRelevance
" The patients were allocated to Groups 1-3 on the basis of the pharmacokinetic characteristics obtained."( The pharmacokinetics of ticarcillin/clavulanate acid in neonates.
Doerck, M; Fricke, G; Hafner, D; Horton, R; Kresken, M, 1989
)
0.28
"A pharmacokinetic trial with ticarcillin/clavulanate was undertaken in patients with severe burns."( Pharmacokinetics of ticarcillin/clavulanate in severely burned patients.
Adam, D; Koeppe, P; Wesch, R; Zellner, PR, 1989
)
0.28
" Noncompartmental pharmacokinetic parameters for the individual compounds were determined from plasma concentrations and urinary excretion rates."( Pharmacokinetics of ticarcillin and clavulanic acid (timentin) in relation to renal function.
Chudzik, GM; Cooper, DL; Doyle, GD; Jungbluth, GL; Jusko, WJ, 1986
)
0.27
" This is supported by comparison of certain pharmacokinetic parameters for TICAR and CLA."( Serum levels and pharmacokinetics of ticarcillin and clavulanic acid in dog following parenteral administration of Timentin.
Garg, RC; Keefe, TJ; Vig, MM, 1987
)
0.27
" A pharmacokinetic study was performed in three newborns (under three months) and ten children (mean age 3 years)."( Efficacy and pharmacokinetics of Timentin in paediatric infections.
Bégué, P; Quinet, B; Quiniou, F, 1986
)
0.27
" Experimental pharmacokinetic studies in the guinea pig were performed in the inner ear and eye fluids and in serum."( Timentin--clinical and pharmacokinetic evaluation in otorhinolaryngology.
Federspil, P; Koch, A; Schätzle, W; Tiesler, E, 1986
)
0.27
" Pharmacokinetic parameters, urine recovery, penetration and ticarcillin/clavulanic acid ratios were calculated."( Pharmacokinetics and tissue penetration of Timentin: a simultaneous study of serum, urine, lymph, suction blister and subcutaneous thread fluid.
Dale, LG; Hellum, KB; Thurmann-Nielsen, E; Walstad, RA, 1986
)
0.27
"The pharmacokinetic characteristics of ticarcillin and clavulanic acid were determined after the first dose (n = 22) and again under steady-state conditions (n = 16) in a group of infants and children."( Pharmacokinetic-based ticarcillin/clavulanic acid dose recommendations for infants and children.
Blumer, JL; Reed, MD; Yamashita, TS, 1995
)
0.29
"To evaluate the pharmacodynamic antibacterial activity of ticarcillin-clavulanic acid (T-C) and ampicillin-sulbactam (A-S) combinations against reference bacterial strains in patients with end-stage renal disease maintained on long-term hemodialysis."( Comparison of ampicillin-sulbactam and ticarcillin-clavulanic acid in patients with chronic renal failure: effects of differential pharmacokinetics on serum bactericidal activity.
Butler, SC; Hardin, TC; Jorgensen, JH; Ross, S; Wakeford, JH,
)
0.13
"Continuous infusion (CI) ticarcillin-clavulanate is a potential therapeutic improvement over conventional intermittent dosing because the major pharmacodynamic (PD) predictor of efficacy of beta-lactams is the time that free drug levels exceed the MIC."( Continuous infusion of ticarcillin-clavulanate for home treatment of serious infections: clinical efficacy, safety, pharmacokinetics and pharmacodynamics.
Carney, J; Carroll, J; McWhinney, B; Munckhof, WJ; Neilson, G; Neilson, J; Whitby, M, 2005
)
0.33
"The primary study objective was to predict the pharmacokinetic (PK) and pharmacodynamic (PD) MIC breakpoints (the highest MIC with a probability of target attainment [PTA] of at least 90%) for the bacteriostatic and bactericidal targets of ticarcillin activity against Pseudomonas aeruginosa using the study dosing regimen."( Population pharmacokinetic and pharmacodynamic modeling of high-dose intermittent ticarcillin-clavulanate administration in pediatric cystic fibrosis patients.
Ampofo, K; Cash, J; Chatfield, BA; Korgenski, K; McDowell, BJ; Sherwin, CM; Spigarelli, M; Stockmann, C; Young, DC; Zobell, JT, 2011
)
0.37
" In infants <30 weeks gestational age, pharmacokinetic data to guide ticarcillin-clavulanate dosing are lacking."( Pharmacokinetics of ticarcillin-clavulanate in premature infants.
Anand, R; Balevic, SJ; Benjamin, DK; Cohen-Wolkowiez, M; Cotten, CM; Harper, B; Hornik, CP; Laughon, M; Mundakel, G; Smith, PB; Watt, KM, 2019
)
0.51

Compound-Compound Interactions

ExcerptReferenceRelevance
"One hundred febrile episodes in neutropenic (PMN less than 500/mm3) patients were treated with Timentin alone or in combination with amikacin."( A prospective randomized study comparing the efficacy of Timentin alone or in combination with amikacin in the treatment of febrile neutropenic patients.
Bru, JP; Hollard, D; Leautet, JB; Legrand, C; Michallet, M; Micoud, M; Sotto, JJ; Stahl, JP; Swierz, P, 1986
)
0.27
"5 mg/l for ticarcillin combined with 4 and 8 mg/l of clavulanic acid respectively."( The activity of ticarcillin in combination with clavulanic acid against Bacteroides species: an in-vitro comparison with other antibiotics.
Bébéar, C; de Barbeyrac, B; Quentin, C, 1986
)
0.27
"Timentin (ticarcillin + clavulanic acid) combined with an aminoglycoside usually netilmicin, was given to 33 children with neutropenic haematological malignancies."( Timentin (ticarcillin and clavulanic acid) in combination with aminoglycosides in the treatment of febrile episodes in neutropenic children.
Leauté, JB; Leverger, G; Reinert, P; Schaison, G, 1986
)
0.27
"To determine the effect of regional limb perfusion (RLP) with amikacin sulfate alone and in combination with ticarcillin/clavulanate on synovial fluid concentration and antimicrobial activity of amikacin."( Accumulation of amikacin in synovial fluid after regional limb perfusion of amikacin sulfate alone and in combination with ticarcillin/clavulanate in horses.
Fubini, SL; Schwark, WS; Watts, AE; Zantingh, AJ, 2014
)
0.4

Bioavailability

ExcerptReferenceRelevance
" In spite of initial faster absorption, the intramuscular bioavailability of CLA (65."( Serum levels and pharmacokinetics of ticarcillin and clavulanic acid in dog following parenteral administration of Timentin.
Garg, RC; Keefe, TJ; Vig, MM, 1987
)
0.27

Dosage Studied

ExcerptRelevanceReference
" Complicated dosing schedules and the possibility of aminoglycoside toxicity make alternatives desirable."( A preliminary report of ticarcillin and clavulanate versus triple antibiotic therapy in children with ruptured appendicitis.
Kaplan, SL; Mason, EO; Pokorny, WJ, 1991
)
0.28
" The clearances of both drugs decreased proportionately with reduction in renal function, facilitating dosing adjustments based on CLCR."( Pharmacokinetics of ticarcillin and clavulanic acid (timentin) in relation to renal function.
Chudzik, GM; Cooper, DL; Doyle, GD; Jungbluth, GL; Jusko, WJ, 1986
)
0.27
"Pharmacokinetics of the novel combination of ticarcillin with the beta-lactamase inhibitor clavulanic acid (BRL 28500, Timentin, Betabactyl) was investigated in order to calculate the dose reduction factor (DRF) and elaborate dosage recommendations for patients with varying degrees of renal impairment."( Pharmacokinetic studies on clavulanate potentiated ticarcillin in normal subjects and patients with renal insufficiency.
Höffler, D; Hulla, FW; Koeppe, P, 1987
)
0.49
" The mean dosage used in patients under three months was 225 mg/kg/d ticarcillin and 9 mg/kg/d clavulanic acid."( Efficacy and pharmacokinetics of Timentin in paediatric infections.
Bégué, P; Quinet, B; Quiniou, F, 1986
)
0.27
" For general condition, dogs dosed with CVA-K at 100 mg/kg showed reddening of the skin and mucous membranes, shaking of the head, facial oedema, a decrease in food intake and a reduction in body weight."( [Chronic intravenous toxicity studies of potassium clavulanate and BRL28500 in dogs].
Katayama, T; Kobayashi, K; Koshima, Y; Koyanagi, J; Koyu, A; Kurakata, Y; Nagata, R; Nishioka, Y; Onishi, M; Sato, M, 1986
)
0.27
" Timentin was administered intravenously at an average dosage of 207 mg/kg per day for mild to moderate infection and 310 mg/kg per day for bone and joint infections with systemic signs (sepsis)."( Timentin therapy for bone, joint, and deep soft tissue infections in children.
Aronson, J; Augustine, RA; Jacobs, RF; McCarthy, RE; Steele, RW; Yamauchi, T, 1985
)
0.27
" The pharmacy department provides an aminoglycoside-monitoring program and convenient dosing guidelines."( Rationale and experience in treating suspected hospital-based mixed infections.
Billeter, M,
)
0.13
" Our results suggest that the current dosing recommendations of 75 mg/kg every 12 h risk subtherapeutic clavulanic acid concentrations and that 50 mg/kg every 6 h is a more rational dosing strategy."( Ticarcillin-clavulanic acid pharmacokinetics in preterm neonates with presumed sepsis.
Burstein, AH; Carlos, RQ; Diaz, PR; Forrest, A; Gal, P; Ransom, JL; Wyble, LE, 1994
)
0.29
"Increasing the dosing interval for T-C in patients with end-stage renal disease may lead to periods of insufficient clavulanic acid to protect ticarcillin from beta-lactamase degradation."( Comparison of ampicillin-sulbactam and ticarcillin-clavulanic acid in patients with chronic renal failure: effects of differential pharmacokinetics on serum bactericidal activity.
Butler, SC; Hardin, TC; Jorgensen, JH; Ross, S; Wakeford, JH,
)
0.13
" It is concluded that both drugs can be administered concomitantly without any dosage adjustment of theophylline."( Clinical pharmacokinetics of theophylline during co-treatment with ticarcillin plus clavulanic acid in patients suffering from acute exacerbation of chronic bronchitis.
Cazzola, M; Lampa, E; Matera, MG; Paizis, G; Rossi, F; Santangelo, G; Vinciguerra, A, 1993
)
0.29
" All samples were collected over one dosing interval."( Clearance of ticarcillin-clavulanic acid by continuous venovenous hemofiltration in three critically ill children, two with and one without concomitant extracorporeal membrane oxygenation.
Bawdon, R; Lindsay, CA; Quigley, R,
)
0.13
"To provide an overview of the clinical pharmacokinetics and pharmacodynamics of ticarcillin/clavulanic acid and to reassess traditional dosage recommendations based on contemporary pharmacokinetic and pharmacodynamic principles."( Rational prescribing of extended-spectrum penicillin beta-lactamase inhibitor combinations: focus on ticarcillin/clavulanic acid.
Reed, MD, 1998
)
0.3
" Integration of these data with defined pathogen minimum inhibitory concentrations underscores the appropriateness of an extended dosing interval (e."( Rational prescribing of extended-spectrum penicillin beta-lactamase inhibitor combinations: focus on ticarcillin/clavulanic acid.
Reed, MD, 1998
)
0.3
"Integration of pharmacokinetic and pharmacodynamic data is an appropriate means to assess/reassess dosing recommendations for antimicrobial agents."( Rational prescribing of extended-spectrum penicillin beta-lactamase inhibitor combinations: focus on ticarcillin/clavulanic acid.
Reed, MD, 1998
)
0.3
"Continuous infusion (CI) ticarcillin-clavulanate is a potential therapeutic improvement over conventional intermittent dosing because the major pharmacodynamic (PD) predictor of efficacy of beta-lactams is the time that free drug levels exceed the MIC."( Continuous infusion of ticarcillin-clavulanate for home treatment of serious infections: clinical efficacy, safety, pharmacokinetics and pharmacodynamics.
Carney, J; Carroll, J; McWhinney, B; Munckhof, WJ; Neilson, G; Neilson, J; Whitby, M, 2005
)
0.33
" This dosing strategy is higher than the Cystic Fibrosis Foundation (CFF) recommendations and the Food and Drug Administration (FDA) approved package labeling."( High dose intermittent ticarcillin-clavulanate administration in pediatric cystic fibrosis patients.
Ampofo, K; Cash, J; Chatfield, BA; Korgenski, K; Zobell, JT, 2010
)
0.36
"A retrospective study of pediatric cystic fibrosis (CF) patients admitted from January 1, 2005 to December 31, 2009 who received the dosing regimen for at least 7 days."( High dose intermittent ticarcillin-clavulanate administration in pediatric cystic fibrosis patients.
Ampofo, K; Cash, J; Chatfield, BA; Korgenski, K; Zobell, JT, 2010
)
0.36
" This dosing strategy is higher than the Food and Drug Administration (FDA)-approved package labeling."( Population pharmacokinetic and pharmacodynamic modeling of high-dose intermittent ticarcillin-clavulanate administration in pediatric cystic fibrosis patients.
Ampofo, K; Cash, J; Chatfield, BA; Korgenski, K; McDowell, BJ; Sherwin, CM; Spigarelli, M; Stockmann, C; Young, DC; Zobell, JT, 2011
)
0.37
"The primary study objective was to predict the pharmacokinetic (PK) and pharmacodynamic (PD) MIC breakpoints (the highest MIC with a probability of target attainment [PTA] of at least 90%) for the bacteriostatic and bactericidal targets of ticarcillin activity against Pseudomonas aeruginosa using the study dosing regimen."( Population pharmacokinetic and pharmacodynamic modeling of high-dose intermittent ticarcillin-clavulanate administration in pediatric cystic fibrosis patients.
Ampofo, K; Cash, J; Chatfield, BA; Korgenski, K; McDowell, BJ; Sherwin, CM; Spigarelli, M; Stockmann, C; Young, DC; Zobell, JT, 2011
)
0.37
"This was a population-based PK-PD modeling study of pediatric CF patients admitted from January 1, 2005 to December 31, 2009 who received the dosing regimen for at least 7 days."( Population pharmacokinetic and pharmacodynamic modeling of high-dose intermittent ticarcillin-clavulanate administration in pediatric cystic fibrosis patients.
Ampofo, K; Cash, J; Chatfield, BA; Korgenski, K; McDowell, BJ; Sherwin, CM; Spigarelli, M; Stockmann, C; Young, DC; Zobell, JT, 2011
)
0.37
" Additional studies are warranted to determine the clinical effectiveness of this dosing regimen."( Population pharmacokinetic and pharmacodynamic modeling of high-dose intermittent ticarcillin-clavulanate administration in pediatric cystic fibrosis patients.
Ampofo, K; Cash, J; Chatfield, BA; Korgenski, K; McDowell, BJ; Sherwin, CM; Spigarelli, M; Stockmann, C; Young, DC; Zobell, JT, 2011
)
0.37
" The ceftazidime and cefepime dosing ranges from the literature are 200-400 mg/kg/day divided every 6-8 hr, maximum 8-12 g/day, and 150-200 mg/kg/day divided every 6-8 hr, up to 6-8 g/day, respectively."( Optimization of anti-pseudomonal antibiotics for cystic fibrosis pulmonary exacerbations: II. cephalosporins and penicillins.
Ampofo, K; Sherwin, CM; Spigarelli, MG; Stockmann, C; Waters, CD; Young, DC; Zobell, JT, 2013
)
0.39
" In infants <30 weeks gestational age, pharmacokinetic data to guide ticarcillin-clavulanate dosing are lacking."( Pharmacokinetics of ticarcillin-clavulanate in premature infants.
Anand, R; Balevic, SJ; Benjamin, DK; Cohen-Wolkowiez, M; Cotten, CM; Harper, B; Hornik, CP; Laughon, M; Mundakel, G; Smith, PB; Watt, KM, 2019
)
0.51
" The sieving coefficient data may help guide appropriate dosing of critically ill patients receiving haemofiltration until more extensive clinical pharmacokinetic data are available."( In-vitro adsorption and sieving coefficient of ticarcillin-clavulanate during continuous haemofiltration.
Choi, GYS; Gomersall, CD; Guerra Valero, Y; Joynt, GM; Lipman, J; Ordóñez Mejia, JL; Roberts, JA; T P Wan, W; Wallis, SC, 2019
)
0.51
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Bioassays (19)

Assay IDTitleYearJournalArticle
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]
AID1079947Comments (NB not yet translated). [column 'COMMENTAIRES' in source]
AID1079949Proposed mechanism(s) of liver damage. [column 'MEC' in source]
AID1079948Times to onset, minimal and maximal, observed in the indexed observations. [column 'DELAI' in source]
AID1079932Highest frequency of moderate liver toxicity observed during clinical trials, expressed as a percentage. [column '% BIOL' in source]
AID1079944Benign tumor, proven histopathologically. Value is number of references indexed. [column 'T.BEN' 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]
AID1079939Cirrhosis, proven histopathologically. Value is number of references indexed. [column 'CIRRH' in source]
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]
AID1079940Granulomatous liver disease, proven histopathologically. Value is number of references indexed. [column 'GRAN' in source]
AID1079937Severe hepatitis, defined as possibly life-threatening liver failure or through clinical observations. Value is number of references indexed. [column 'MASS' in source]
AID1079946Presence of at least one case with successful reintroduction. [column 'REINT' in source]
AID1079942Steatosis, proven histopathologically. Value is number of references indexed. [column 'STEAT' in source]
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]
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]
AID1079934Highest frequency of acute liver toxicity observed during clinical trials, expressed as a percentage. [column '% AIGUE' in source]
AID1079943Malignant tumor, proven histopathologically. Value is number of references indexed. [column 'T.MAL' in source]
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
AID1079945Animal toxicity known. [column 'TOXIC' in source]
[information is prepared from bioassay data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (216)

TimeframeStudies, This Drug (%)All Drugs %
pre-199097 (44.91)18.7374
1990's57 (26.39)18.2507
2000's33 (15.28)29.6817
2010's25 (11.57)24.3611
2020's4 (1.85)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 8.64

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 weak demand-to-supply ratio for research on this compound.

MetricThis Compound (vs All)
Research Demand Index8.64 (24.57)
Research Supply Index5.67 (2.92)
Research Growth Index4.31 (4.65)
Search Engine Demand Index0.00 (26.88)
Search Engine Supply Index0.00 (0.95)

This Compound (8.64)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials51 (21.52%)5.53%
Reviews14 (5.91%)6.00%
Case Studies22 (9.28%)4.05%
Observational0 (0.00%)0.25%
Other150 (63.29%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]