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作 者:刘东[1] 汪震[1] 龚培力[2] 杨晓燕[2] 曾繁典[2]
机构地区:[1]华中科技大学同济医学院附属同济医院药学部,武汉430030 [2]华中科技大学同济医学院临床药理研究所
出 处:《中国药师》2006年第9期789-792,共4页China Pharmacist
摘 要:目的:评价国产加巴喷丁片(受试制剂)与进口加巴喷丁胶囊(Neurontin Capsules,参比制剂)在健康人体的生物等效性。方法:采用两制剂双周期自身对照交叉试验设计,18名健康志愿者随机分组服用单剂量加巴喷丁受试制剂和参比制剂各600mg。采用高效液相色谱荧光检测法测定血浆加巴喷丁浓度。用3P97药物动力学软件进行参数计算和生物等效性评价。结果:参比制剂和受试制剂的主要药物动力学参数如下:AUC 0→1分别为(43.58±15.41)和(45.58±11.09)mg·h·L^(-1), AUC 0→∞分别为(45.92±15.63)和(47.86±11.51)mg·h·L^(-1);C_(max)分别为(4.12±1.82)和(4.66±1.52)mg·L^(-1);t_(max)分别为(2.75±0.85)和(2.83±0.91)h。与参比制剂相比,受试制剂的相对生物利用度F0→1与F0→∞分别为(97.3±30.4)%和(97.8±30.2)%。经方差分析及双单侧t检验表明,AUC 0→t、AUC 0→∞和C_(max)均接受受试制剂与参比制剂生物等效性的假设, t_(max)经秩和检验无显著性差异(P>0.05)。结论:两种加巴喷丁制剂具有生物等效性。Objective: To evaluate the bioequivalence of gabapentin tablet in Chinese healthy volunteers. Method: A single oral dose 600 mg of two gabapentin preparations, reference and test preparations was given to 18 volunteers in a randomized cross-over study. The concentration of gabapentin in plasma was determined by HPLC method with fluorenscence detector. Result: The main pharmacokinetic parameters of two formulations, reference and test preparations, were as follows: A UC0→1, were (43.58 ± 15.41 )and (45.58 ± 11.09 ) mg· h·L^- 1, A UC0→∞ were (45.92 ± 15.63 ) and (47.86 ± 11.51 )mg· h·L^- 1; Cmax were (4.12 ± 1.82 ) and (4.66 ± 1.52 ) mg· h·L^- 1;tmax= were(2.75 ± 0.85 ) and ( 2.83 ± 0.91 ) h, respectively. The relative bioavailability of F0→1 and F0→∞ were (97.3 ± 30.4) % and (97.8 ± 30.2)% , respectively. Conclusion: The results of ANOVA and two one-sided t test statistical analysis showed that the two formulations were bioequivalent.
关 键 词:加巴喷丁 高效液相色谱荧光检测法 生物等效性
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