Hu Wei, Yang Yaru, Zhang Qian, Yang Yang, Zhou Renpeng, Lu Chao, Liu Zeyuan
Int J Clin Pharmacol Ther. 2020 Jan;58(1):57-65. doi: 10.5414/CP203437.
OBJECTIVE: This study was conducted to evaluate the pharmacokinetic properties and bioequivalence of two oral formulations of canagliflozin: a newly developed generic formulation (test) and a branded formulation (reference). MATERIALS AND METHODS: A randomized, open-label, two-way crossover study was conducted in 55 healthy Chinese subjects. They were randomized to receive a single oral dose of 100 mg of test or reference canagliflozin tablets according to an open crossover design under fasting and fed states. Plasma canagliflozin concentrations were determined by liquid chromatography-tandem mass spectrometry, and the pharmacokinetic parameters maximum concentration (C) and area under the concentration-time curve (AUC and AUC) were used to evaluate bioequivalence. RESULTS: The geometric mean ratio 90% confidence intervals for fasting C, AUC, and AUC were 85.14 - 114.40%, 102.14 - 106.51%, and 102.21 - 106.85%, respectively, and fed C, AUC, and AUC were 90.15 - 107.17%, 97.38 - 102.19%, and 96.78 - 101.92%, respectively. The mean values of t were prolonged in the test compared with the reference formulations. In addition, the mean values of t and C for both formulations were significantly different under fed compared with fasting conditions, while there was no significant difference in AUC or AUC. CONCLUSION: The two types of canagliflozin tablets were bioequivalent under both fasting and fed states, and both were generally well tolerated.
目的:本研究旨在评估两种口服卡格列净制剂的药代动力学特性和生物等效性,一种是新开发的仿制药制剂(试验品),另一种是品牌制剂(参比品)。 材料与方法:在55名健康中国受试者中进行了一项随机、开放标签、双向交叉研究。根据开放交叉设计,他们被随机分配在禁食和进食状态下接受单次口服100mg试验品或参比品卡格列净片。采用液相色谱-串联质谱法测定血浆卡格列净浓度,并使用药代动力学参数最大浓度(C)以及浓度-时间曲线下面积(AUC和AUC)来评估生物等效性。 结果:禁食状态下C、AUC和AUC的几何平均比值90%置信区间分别为8S.14% - 114.40%、102.14% - 106.51%和102.21% - 106.85%,进食状态下C、AUC和AUC的几何平均比值90%置信区间分别为90.15% - 107.17%、97.38% - 102.19%和96.78% - IOI.92%。与参比制剂相比,试验品的t平均值延长。此外,两种制剂在进食状态下与禁食状态下的t和C平均值均有显著差异,而AUC或AUC无显著差异。 结论:两种类型的卡格列净片在禁食和进食状态下均具有生物等效性,且总体耐受性良好。
Int J Clin Pharmacol Ther. 2019-12
Eur J Pharm Sci. 2015-11-15