Drugs in R&D · 2024
Bioequivalence Analysis of Ondansetron Hydrochloride Tablets in Healthy Chinese Subjects: A Randomized, Open-Label, Two-Period Crossover Phase I Study.
СтатьяРандомизированное исследованиеКлиническое исследование I фазыНазвание и аннотация: Перевод в очереди
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Jia Caiyun, Zhao Na, Song Haojing, Hu Yiting, Xu Yufang, Guo Caihui, Bai Wanjun, Dong Zhanjun
Аннотация
BACKGROUND: Ondansetron is a highly selective 5-HT3 receptor antagonist that alleviates nausea and vomiting. Bioequivalence evaluation ensures that the efficacy of generic drugs is consistent with that of the original drug.
OBJECTIVE: The objective of this study was to evaluate the bioequivalence of ondansetron hydrochloride (HCl) tablets taken in single doses under fasting and postprandial conditions in healthy subjects.
METHODS: In this randomized, open-label, two-cycle, crossover phase I study, liquid chromatography‒tandem mass spectrometry (LC‒MS/MS) was used to determine the ondansetron concentration in dipotassium-ethylenediaminetetraacetate (K2-EDTA) plasma after the subjects received a single 8 mg of ondansetron and reference formulation. Twenty-six healthy subjects received one tablet of ondansetron under fasting conditions and 28 subjects received one under postprandial conditions. Bioequivalence was established if the 90% confidence interval (CI) was 80.00-125.00%. The pharmacokinetic parameters were calculated via WinNonLin 8.1 software and the bioequivalence data were evaluated via Phoenix WinNonlin 8.1 statistics software.
RESULTS: The geometric mean ratio (GMR) of the maximum observed concentration (Cmax), the area under the plasma concentration‒time curve (AUC) from time zero to the last sampling time (AUC0-t), and the AUC from time zero to infinity (AUC0-∞) from the test/reference formulation under fasting conditions were 90.50, 90.43, and 90.25, respectively. The 90% CIs were 83.75-97.79, 82.64-98.95, and 82.25-99.03, respectively. The GMRs of Cmax, AUC0-t, and AUC0-∞ after a high-fat meal were 96.85, 93.57, and 93.77, respectively; the 90% CIs were 88.43-106.07, 87.35-100.24, and 87.35-100.68, respectively.
CONCLUSION: The test and reference formulations of ondansetron HCl have bioequivalence for healthy adult subjects under fasting and postprandial conditions.
OBJECTIVE: The objective of this study was to evaluate the bioequivalence of ondansetron hydrochloride (HCl) tablets taken in single doses under fasting and postprandial conditions in healthy subjects.
METHODS: In this randomized, open-label, two-cycle, crossover phase I study, liquid chromatography‒tandem mass spectrometry (LC‒MS/MS) was used to determine the ondansetron concentration in dipotassium-ethylenediaminetetraacetate (K2-EDTA) plasma after the subjects received a single 8 mg of ondansetron and reference formulation. Twenty-six healthy subjects received one tablet of ondansetron under fasting conditions and 28 subjects received one under postprandial conditions. Bioequivalence was established if the 90% confidence interval (CI) was 80.00-125.00%. The pharmacokinetic parameters were calculated via WinNonLin 8.1 software and the bioequivalence data were evaluated via Phoenix WinNonlin 8.1 statistics software.
RESULTS: The geometric mean ratio (GMR) of the maximum observed concentration (Cmax), the area under the plasma concentration‒time curve (AUC) from time zero to the last sampling time (AUC0-t), and the AUC from time zero to infinity (AUC0-∞) from the test/reference formulation under fasting conditions were 90.50, 90.43, and 90.25, respectively. The 90% CIs were 83.75-97.79, 82.64-98.95, and 82.25-99.03, respectively. The GMRs of Cmax, AUC0-t, and AUC0-∞ after a high-fat meal were 96.85, 93.57, and 93.77, respectively; the 90% CIs were 88.43-106.07, 87.35-100.24, and 87.35-100.68, respectively.
CONCLUSION: The test and reference formulations of ondansetron HCl have bioequivalence for healthy adult subjects under fasting and postprandial conditions.