Bioequivalence of oxcarbazepine oral suspension vs. film-coated tablet in healthy Chinese male subjects

被引:0
作者
Souppart, C. [1 ]
Yin, Q. [2 ]
Merz, M. [1 ]
Hu, P. [3 ]
Jiang, J. [3 ]
Appel-Dingemanse, S. [1 ]
机构
[1] Novartis Pharma AG, CH-4002 Basel, Switzerland
[2] Novartis Inst Biomed Res, Beijing, Peoples R China
[3] Peking Union Med Coll Hosp, Clin Pharmacol Res Ctr, Beijing, Peoples R China
关键词
oxcarbazepine; trileptal; monohydroxy derivative (MHD); bioequivalence; Chinese male subjects;
D O I
暂无
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Objective: Oxcarbazepine (Trileptal((R))) is an antiepileptic drug used as monotherapy or adjunctive therapy in the treatment of partial seizures in adults and children. The primary objective of this study was to asess the bioequivalence Trileptal((R)) oral suspension formulation vs. the film-coated tablet after single and multiple twice-daily administrations in fasted, healthy Chinese male subjects. Methods: This was an open-label, randomized, two-period crossover study in 19 healthy Chinese male subjects. Treatment periods consisted of a single dose 300 mg oxcarbazepine (either oral suspension formulation or film-coated tablet) on Day 1, b.i.d. administration of 300 mg from Day 4 to Day 8 inclusive, and a final dose of 300 mg on the morning of Day 9, A 1-week washout period was implemented between treatment periods. Plasma levels of 10-monohydroxy derivative (MHD), the main metabolic mediating the pharmacologic activity of oxcarbazepinc, were measured by a validated liquid chromatography tandem mass spectrometry method. Bioequivalence was assessed by the MHD areas under the concentration time curve (AUCs) and the maximum concentrations (C-max) of the oral suspension vs. the film-coated tablet. Safely was evaluated throughout the study. Results: Trileptal((R)) oral suspension formulation was bioequivalent to film-coated tablet after single dose and multiple b.i.d. administrations, as assessed by MHD AUCs and C-max. The 90% confidence intervals (CI) of the geometric mean of the MHD individual ratios were within the bioequivalence CI limits (0.80-1.25). No safety concerns were raised. Conclusions: Trileptal((R)) oral suspension formulation and film-coated tablets are bioequivalent in healthy chinese males.
引用
收藏
页码:538 / 544
页数:7
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