奥美拉唑肠溶胶囊人体生物等效性研究  被引量:1

Bioequivalence of Omeprazole Enteric-coated Capsules in Chinese Healthy Volunteers

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作  者:赵建波[1] 张宇鹏[2] 邱相君[2] 代宗顺[3] 

机构地区:[1]杭州师范大学基础医学部药理学教研室,310036 [2]河南科技大学医学院药理学教研室,洛阳471003 [3]华中科技大学同济医学院临床药理研究所,武汉430030

出  处:《医药导报》2008年第2期162-164,共3页Herald of Medicine

摘  要:目的研究奥美拉唑肠溶胶囊的人体相对生物利用度和生物等效性。方法健康志愿者20例,随机双交叉单剂量口服奥美拉唑肠溶胶囊的试验和参比制剂,剂量均为40mg,剂间间隔1周。分别于服药后12h内多点抽取静脉血;用高效液相色谱(HPLC)法测定血浆中奥美拉唑的浓度。用DAS药代动力学程序计算相对生物利用度并评价两种制剂生物等效性。AUC(0-12),AUC(0-inf)和Cmax经方差分析和双单侧t检验,tmax进行秩和检验。结果单剂量口服奥美拉唑肠溶胶囊试验和参比制剂后,血浆奥美拉唑的Cmax分别为(939.63±284.29)和(1012.88±315.68)μg·L^-1;tmax分别为(2.58±0.65)和(2,45±0.48)h;AUC(0-12)分别为(3857.43±1146.46)和(4091.39±1175.82)μg·L^-1;AUC[0-inf)分别为(4088.97±1253.34)和(4387.24±1290.20)μg·L^-1。Cmax、AUC(0-12)、AUC(0-inf)的90%可信区间分别为86.0%-101.7%,88.9%-101.5%和87.3%~100.9%。结论试验制剂与参比制剂比较,其人体相对生物利用度为(96.26±16.52)%,两制剂具有生物学等效性。Objective To study the relative bioavailability and bioequivalence of omeprazole Enteric-coated capsules in healthy volunteers. Methods A single oral dose (40 mg of tested and reference formulation) was given to 20 healthy volunteers in a randomised crossover study, with one week dose interval. The plasma omeprazole concentrationswas determined within 12 h administration by HPLC. The pharmacokinetics parameters were calculated and the bioavailability and bioequivalence of two formulations were evaluated by DAS program. AUC(0-12) ,AUC(o.inf) and Cmax was analysed by ANOVA followed by test, tmax was analysed by rank sum test. Results After a single dose administration, the pharmacokinetics parameters for omeprazole were as follows: Cmax were( 939.63 ± 284.29 ) μg·L^-1 and ( 1 012. 88 ± 315.68 ) μg·L^-1 ; tmax= were ( 2.58 ± 0.65 ) and (2.45±0.48) h; AUC(0-12) were (3 857.43 ± 1 146. 46) and(4 091.39 ±1 175. 82) μg·L^-1; AUC(0-inf) were (4 088.97 ± 1 253.34) and (4 387.24 ± 1 290.20) μg·L^-1 for T and R respectively. The 90% confidential interval of Cmax=AUC(0-12) and AUC(0-inf) of tested formulation were 86. 0% - 101. 7%, 88. 9% - 101. 5% and 87. 3% - 100. 9% respectively. Conclusion The relative bioavailability of the tested and reference formulations was (96.26 ± 16.52) % ; The statistic analysis shows that the two formulations were bioequivalence.

关 键 词:奥关拉唑 肠溶胶囊 相对生物利用度 生物等效性 高效液相色谱法 

分 类 号:R975[医药卫生—药品] R965[医药卫生—药学]

 

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