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奈韦拉平胶囊人体相对生物利用度和生物等效性研究

Related bioavailability of nevirapine capsule in human subjects
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摘要 目的:比较奈韦拉平胶囊与奈韦拉平片的人体相对生物利用度.并进行生物等效性评价。方法:按照两制刑两周期随机交叉设计,选择20名健康志愿者单剂量口服试验制剂或参比200mg,采用HPLC—UV法测定其血药浓度。DAS软件处理血药浓度数据和计算参数,并进行统计学分析.对两种制剂作出生物等效性评价。结果:建立血浆奈韦拉平血浆浓度的HPLC测定法。该加权线性回归方程为:A=3.72C-0.0082(r=0.9991)。线性范围为0.05~5.0mg·L^-1最低检测浓度为0.05mg·L^-1单剂量口服200mg的奈韦拉平试验和参比制剂.得AUG0→t(梯形法)分别为(152.7±23.1)mg·h·L^-1和(150.5±18.7)mg·h·L^-1,AUC1→∞(梯形法)分别为(167.2±27.2)mg·h·L^-1和(164.8±22.4)mg·h·L:Cmax(实测)分别为2.5±0.4)mg·L^-1和(2.5±0.4mg·L^-1,tmax(卖测)分别为(3.2±1.2)h和(3.1±1.2)h。用药时曲线下面积AUC0→1计算.20名健康志愿者单剂量口服奈韦拉平胶囊(试验制剂)相对生物利用度为(102.0±24.3)%。结论:本项目研究所用奈韦拉平血药浓度监测方法可满足生物利用度试验方法学的要求。试验制剂(奈韦拉平胶囊)与参比制剂(奈韦拉平片)相比较的人体相对生物利用度按AUC0→1,计为(102.0±24.3)%,统计学检验表明.试验制剂与参比制剂具生物等效性。 OBJECTIVE To study pharmacokinetics and bioavailability of nevirapine capsule and tablet. METHODS A re versed-phase high performance liquid chromatography was used for the determination of nevirapine in plasma after a single oral dose 200 mg nevirapine capsule and tablet in a crossover design. RESULTS The main pharmacokinetic parameters of nevirapine capsule and tablet were: AUC0→1 ( 152.7 ± 23. 1 )mg·h·L^-1 and ( 150. 5 ± 18.7)mg·h·L^-1 , AUC0-∞ ( 167. 2 ± 27. 2)mg· h· L and(164.8±22.4)mg·h·L^-1;Cmax(2.5+0.4)mg·L and (2.5±0.4)mg·Lmax(3.2±1.2)hand (3.1±1.2)h. CONCLUSION The nevirapine capsule and tablet are bioequivalent.
出处 《中国医院药学杂志》 CAS CSCD 北大核心 2006年第11期1381-1383,共3页 Chinese Journal of Hospital Pharmacy
关键词 奈韦拉平胶囊 生物利用度 生物等效性 高效液相色谱法 nevirapine capsule bioavailability bioequivalence HPLC
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