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中国临床药理学与治疗学 ›› 2013, Vol. 18 ›› Issue (11): 1260-1265.

• 临床药理学 • 上一篇    下一篇

氧氟沙星缓释片单次、多次给药人体药代动力学和生物等效性研究

钟国平1, 陈孝2, 任斌2, 钟诗龙3, 邝翠仪2, 黄丽慧1, 曾桂雄1, 王雪丁1, 廖晓星2, 黄民1, 赵香兰1   

  1. 1中山大学临床药理研究所,
    2中山大学附属第一医院,
    3广东省人民医院,广州 510080,广东
  • 收稿日期:2013-03-30 修回日期:2013-10-29 出版日期:2013-11-26 发布日期:2013-11-22
  • 通讯作者: 黄民,男,博士,教授,研究方向:临床药理学。Tel: 020-87331409-101 E-mail: huangmin@mail.sysu.edu.cn
  • 作者简介:钟国平,男,博士,讲师,研究方向:临床药理学。Tel: 020-87331409-103 E-mail: zhonggp@mail.sysu.edu.cn

Single-dose and multi-dose pharmacokinetics and bioavailability of ofloxacin sustained-release tablets in healthy volunteers

ZHONG Guo-ping1, CHEN Xiao2, REN Bin2, ZHONG Shi-long3, KUANG Cui-yi2, HUANG Li-hui1, ZENG Gui-xiong1, WANG Xue-ding1, LIAO Xiao-xing2, HUANG Min1, ZHAO Xiang-lan1   

  1. 1Institute of Clinical Pharmacology,Sun Yat-sen University;
    2The First Affiliated Hospital,Sun Yat-sen University;
    3Guangdong General Hospital,Guangzhou 510080,Guangdong, China
  • Received:2013-03-30 Revised:2013-10-29 Online:2013-11-26 Published:2013-11-22

摘要: 目的: 研究氧氟沙星缓释片单次、多次给药的人体药代动力学特征,并与氧氟沙星片比较其缓释特征与生物等效性。方法: 单次给药20例健康成年男性受试者随机分组,自身双周期交叉对照,单次口服药物 400 mg;多次给药18例健康成年男性受试者随机分组,自身双周期交叉对照,多次口服药物(参比制剂 400 mg/2次/d×5 d,受试制剂 400 mg/次/d×5 d)。通过反相HPLC法测定血浆氧氟沙星浓度,采用非房室模型计算药代动力学参数,并进行统计分析。结果: 单次给药参比制剂与受试制剂的Cmax分别为(5382±1558)、(3419±1034)μg/L;Tmax分别为(1.7±0.6)、(4.2±1.8) h;t1/2分别为(8.2±1.0)、(7.6±1.8) h;MRT分别为(8.6±0.9)、(10.3±1.4) h;AUC0-t分别为(33764±5297)、(31280±4412) μg·L-1·h;AUC0→∞分别为(34643±5356)、(32642±4257)μg·L-1·h;Frel为(97.9±12.4)%。方差分析显示,Cmax、Tmax、MRT各参数受试制剂与参比制剂差异具有统计学意义;t1/2、AUC0-t、AUC0→∞各参数受试制剂与参比制剂差异无统计学意义。等效性检验显示,受试制剂与参比制剂90%可信限AUC0-t为 89.0%~97.0%;AUC0→∞为 91.4%~97.8%。多次给药参比制剂与受试制剂的Cmax分别为(3732±1502)、(3564±982) μg/L;Cmin分别为(750±193)、(438±89) μg/L;Tmax分别为(1.5±0.5)、(3.7±1.7) h;AUCSS分别为(32689±4786)、(33591±7929) μg·L-1·h;Cav分别为(1362±199)、(1405±337) μg/L;DF分别为(216.1±76.5)、(221.5±33.9)%;Frel为(102.9±22.5)%。方差分析显示,Cmax、Cav、AUCSS、DF受试制剂与参比制剂差异均无统计学意义。等效性检验显示,90%可信限Cmax为 80.8% ~114.6%;AUCSS为 89.3%~111.9%;Cav为 89.5%~112.4%;DF为 93.7%~122.4%。结论: 受试制剂氧氟沙星缓释片相对于参比制剂氧氟沙星片,单次给药具有缓释动力学特征及吸收程度生物等效,多次给药达稳态时具有生物等效性。

关键词: 氧氟沙星缓释片, 高效液相色谱法, 药代动力学, 生物利用度, 生物等效性

Abstract: AIM: To study the single-dose and multi-dose pharmacokinetics and bioavailability of ofloxacin sustained-release tablets in healthy volunteers.METHODS: The plasma concentrations of ofloxacin were determined by a RP-HPLC method. The reference or test preparation was given to healthy male volunteers according to an open randomized crossover study.The pharmacokinetic parameters and bioavailability of test preparation were compared with reference preparation.RESULTS: The main pharmacokinetic parameters of the test preparation and the reference preparation, the single-dose were as follows: Cmax were (5382± 1558)and (3419±1034) μg/L, Tmax were (1.7±0.6)and(4.2±1.8) h, t1/2 were(8.2±1.0) and(7.6±1.8) h, MRT were(8.6±0.9) and(10.3±1.4) h;AUC0-t were (33764±5297) and(31280±4412) μg·L-1·h,AUC0→∞ were (34643±5356)and (32642±4257) μg·L-1·h. The relative bioavailability of reference to test preparation was (97.9±12.4)%.There were statistically significant difference about Cmax,Tmax,MRT between the reference preparation and test preparation, but there were no statistically significant difference about t1/2,AUC0-t,AUC0→∞. The 90% confidence limit of AUC0-t and AUC0→∞ between the reference preparation and test preparation were 89.0%-97.0% and 91.4%-97.8% respectively. The multi-dose were as follows: Cmax were (3732±1502)and (3564±982) μg/L, Cmin were (750±193),(438±89) μg/L,Tmax were (1.5±0.5) and(3.7±1.7) h, AUCSS were (32689±4786) and(33591±7929) μg·L-1·h, Cav were(1362±199)and (1405±337)μg/L,DF were (216±76)and(222±34)%.The relative bioavailability of reference to test preparation was (102.9±22.5)%. There were no statistically significant difference about Cmax,Cav,AUCSS, DF between the reference preparation and test preparation. The 90% confidence limit of Cmax, AUCSS,Cav and DF were 80.8% -114.6%,89.3%-111.9%,89.5% -112.4% and 93.7%-122.4%.CONCLUSION: The results of statistics analysis showed that the test preparation exhibited sustained-release characteristics, and it was bioequivalent between the test preparation and the reference preparation.

Key words: Ofloxacin sustained-release tablet, High-performance liquid chromatography, Pharmacokinetics, Bioavailability, Bioequivalent

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