摘要
目的用高效液相色谱-质谱法测定健康男性受试者单次空腹口服受试及参比托拉塞米片后的血药浓度,计算受试制剂和参比制剂的药动学参数,评价两种制剂是否生物等效。方法采取两制剂、双周期、交叉的设计试验,24例男性健康受试者单剂量口服受试制剂和参比制剂的托拉塞米片,以HPLC-MS测定血浆中的托拉塞米浓度。采用SPSS及BAPP2.2软件处理计算主要药动学参数。结果受试制剂与参比制剂中托拉塞米的ρ_(max)分别为(1 408.29±337.27)和(1 487.86±360.24)ng·mL^(-1),t_(max)分别为(0.90±0.42)和(1.03±0.50)h,t_(1/2)分别为(4.43±0.57)和(4.43±0.60)h,MRT分别为(3.90±0.60)和(4.01±0.72)h,AUC_(0-24 h)分别为(3 886.86±865.99)和(3 906.06±761.72)ng·h·mL^(-1),AUC_(0-∞)分别为(3 936.57±903.93)和(3 956.96±789.98)ng·h·mL^(-1)。按AUC_(0-24 h)和AUC_(0-∞)计算,受试制剂的相对生物利用度分别为(99.8±11.7)%和(99.7±12.0)%。结论两种制剂在健康人体内具有生物等效性。
OBJECTIVE To evaluate the bioequivalence of tested and reference torasemide tablets in healthy male volunteers.METHODS A single oral dose of the two formulations was given to 24 healthy male volunteers according to a randomized crossover design. Plasma drug concentrations were determined by HPLC-MS. RESULTS The pharmacokinetic parameters of torasemide of the two preparations were as follows: ρ(max)( 1 408. 29 ± 337. 27) and( 1 487. 86 ± 360. 24) ng·mL-1,t(max)( 0. 90 ± 0. 42) and( 1. 03 ±0. 50) h,t(1/2)( 4. 43 ± 0. 57) and( 4. 43 ± 0. 60) h,MRT( 3. 90 ± 0. 60) and( 4. 01 ± 0. 72) h,AUC(0-24 h)( 3 886. 86 ± 865. 99) and( 3 906. 06 ± 761. 72) ng·h·mL-1,AUC(0-∞)( 3 936. 57 ± 903. 93) and( 3 956. 96 ± 789. 98) ng·h·mL-1,respectively. The relative bioavailability of tested torasemide tablets were( 99. 8 ± 11. 7) % and( 99. 7 ± 12. 0) % when calculated by AUC(0-24 h) and AUC(0-∞),respectively. CONCLUSION The two formulations of torasemide are bioequivalent in healthy Chinese volunteers.
出处
《中国药学杂志》
CAS
CSCD
北大核心
2017年第16期1442-1446,共5页
Chinese Pharmaceutical Journal