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作 者:彭向东[1,2] 周淦[1] 谭志荣[1] 陈姚[1] 王医成[1] 郭栋[1] 曹杉[1] 张伟[1] 欧阳冬生[1] 周宏灏[1]
机构地区:[1]中南大学临床药理研究所,长沙410078 [2]中南大学湘雅三医院,长沙410013
出 处:《中国新药杂志》2011年第20期2005-2009,共5页Chinese Journal of New Drugs
基 金:中南大学基础研究基金(2010QZZD010)
摘 要:目的:评价双氯芬酸钠缓释片受试制剂和参比制剂在健康人体的药代动力学和生物等效性。方法:24例健康男性志愿者分别行单剂量和多剂量交叉口服双氯芬酸钠缓释片受试与参比制剂,用高效液相色谱-串联质谱法测定血浆中双氯芬酸钠的血药浓度,计算药代动力学参数及相对生物利用度。结果:单剂量口服受试制剂和参比制剂的主要药动学参数如下:Cmax分别为(568.38±271.26)和(458.64±173.96)ng.mL-1,Tmax分别为5(0.5,12)和1.5(0.5,7)h,AUC0~24 h分别为(2 557.72±659.43)和(2 364.14±698.08)ng.h.mL-1,AUC0~∞分别为(2 655.25±635.48)和(2 843.62±808.61)ng.h.mL-1,MRT分别为(6.3±1.8)和(7.0±1.7)h;多剂量口服受试制剂和参比制剂的主要药代动力学参数为:T(ss,max)分别为5(1,7)和4(0.5,8)h,C(ss,max)分别为(520.58±245.89)和(522.98±234.36)ng.mL-1,C(ss,min)分别为(24.96±20.79)和(22.68±17.67)ng.mL-1,Cav分别为(104.83±45.70)和(105.73±46.93)ng.mL-1,AUCss分别为(2 516.03±1 096.72)和(2 537.58±1 126.34)ng.h.mL-1,DF分别为(492±199)%和(498±193)%。受试制剂对参比制剂的单剂量和多剂量相对生物利用度F分别为为(94.1±23.7)%和(100.7±9.9)%。结论:HPLC-MS/MS法测定人血浆中双氯芬酸钠浓度简单、快速、灵敏、专属性高,双氯芬酸钠缓释片受试制剂与参比制剂生物等效。Objective: To establish a HPLC-MS/MS method for simultaneous determination of diclofenac sodium in human plasma,and to evaluate the bioequivalence of diclofenac sodium sustained release tablets in 24 healthy volunteers.Methods: Healthy volunteers(n=24) were administrated with diclofenac sodium sustained release tablets in a randomized and two-way crossover design with single or multiple dosage.The plasma concentrations were determined by HPLC-MS/MS method.The pharmacokinetic parameters and bioequivalence were calculated by DAS software.Results: The main pharmacokinetic parameters of test and reference preparations after a single dose were: Cmax was(568.38±271.26) and(458.64±173.96)ng·mL-1;Tmax was 5(0.5,12) and 1.5(0.5,7)h;AUC0~24 h was(2557.72±659.43) and(2364.14±698.08)ng·h·mL-1;AUC0~∞ was(2655.25±635.48) and(2843.62±808.61)ng·h·mL-1;MRT was(6.3±1.8) and(7.0±1.7)h;respectively.The main pharmacokinetic parameters of test and reference preparations after multiple dose were: T(ss,max) was 5(1,7)h and 4(0.5,8)h;C(ss,max) was(520.58±245.89) and(522.98±234.36)ng·mL-1;C(ss,min) was(24.96±20.79) and(22.68±17.67)ng·mL-1;Cav was(104.83±45.70) and(105.73±46.93)ng·mL-1;AUCss was(2516.03±1096.72) and(2537.58±1126.34)ng·h·mL-1;DF was(492±199)% and(498±193)%,respectively.The relative bioavailability of test preparation in single dose and multiple dose tests were(94.1±23.7)% and(100.7±9.9)%.Conclusion: The HPLC-MS/MS method is simple,rapid,specific and sensitive for simultaneous determination of diclofenac sodium in human plasma.The results of statistical analysis show that two preparations in research are bioequivalence.
关 键 词:高效液相色串联质谱法 药代动力学 生物等效性 双氯芬酸钠 缓释片
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