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中国临床药理学与治疗学 ›› 2008, Vol. 13 ›› Issue (2): 169-173.

• 定量药理学 • 上一篇    下一篇

利巴韦林含片的人体药动学及生物等效性研究

罗晨辉1, 陈笑艳2, 孙玉明2, 于华玲2, 蒋云1, 仇宇1, 钟大放2, 周晓1, 刘亚利1   

  1. 1湖南省肿瘤医院临床药理基地, 长沙 410013, 湖南;
    2沈阳药科大学药物代谢与药物动力学实验室, 沈阳 110016, 辽宁
  • 收稿日期:2007-11-17 修回日期:2008-01-15 出版日期:2008-02-26 发布日期:2020-10-14
  • 通讯作者: 刘亚利, 女, 博士(汕头大学医学院在站博士后), 主任药师, 研究方向:肿瘤药物的临床药理和临床试验。Tel:0731-8651369 E-mail:lydialyl@126.com。钟大放, 男, 教授, 博士生导师, 研究方向:药物代谢与药物动力学。Tel:024-23902539 E-mail:Zhongdf@china.com
  • 作者简介:罗晨辉, 男, 硕士, 主管药师, 研究方向:肿瘤药物的临床药理和临床试验。Tel:0731-8651669  E-mail:lchhr0107@yahoo.com.cn

Bioequivalence and pharmacokinetics of ribavirin buccal tablets in healthy volunteers

LUO Chen-hui1, CHEN Xiao-yan2, SUN Yu-ming2, YU Hua-ling2, JIANG Yun1, QIU Yu1, ZHONG Da-fang2, ZHOU Xiao1,LIU Ya-li1   

  1. 1Department of Clinical Pharmacology, Tumor Hospital of Hunan Province, Changsha 410013, Hunan, China;
    2Laboratory of Drug Metabolism and Pharmacokinetics, Shenyang Pharmaceutical University, Shenyang 110015, Liaoning,China
  • Received:2007-11-17 Revised:2008-01-15 Online:2008-02-26 Published:2020-10-14

摘要: 目的:建立人血浆中利巴韦林的HPLC-MS分析方法, 用以测定18 名健康男性受试者舌下含服不同厂家的利巴韦林含片后的血药浓度, 估算受试制剂和参比制剂的药动学参数, 评价两种制剂是否生物等效。方法:采用双周期随机交叉试验设计。分别给予18 名男性健康受试者试验制剂或参比制剂80 mg, 采集静脉血样, 血浆样品去蛋白后用HPLC/MS/MS 法检测药物浓度。计算药动学参数, 判定两制剂是否生物等效。结果:测定利巴韦林的线性范围为2 ~ 500 ng/mL (r2 为0.9944), 平均回收率>90 %, 日内RSD 和日间RSD 均<10 %。测得血浆中两种制剂的利巴韦林的主要药代动力学参数tmax 、Cmax 、t 1/2 、AUC0 -72 和AUC0→∞分别为:(1.1 ±0.5) 、(1.1 ±0.4) h, (249±89) 、(232 ±65) ng/mL, (34 ±11) 、(34 ±11) h,(2828 ±1215) 、(2685 ±1096) nghmL-1, (3600 ±1568) 、(3416 ±1379) nghmL-1 。以AUC0 -72 计算, 利巴韦林含片的相对生物利用度平均为(106±16) %。结论:本方法更简便、准确, 灵敏度得到很大提高。两种制剂的利巴韦林药代动力学参数无统计学差异, 具有生物等效性。

关键词: 利巴韦林, 药动学, 生物等效性, 高效液相串联-色谱质谱联用色谱法

Abstract: AIM:To determine ribavirin in human plasma by an LC/MS/MS method and to study the bioequivalence and pharmacokinetics of reference and test ribavirin formulations.METHODS:A double-phased stochastical crossover study design was conducted.18 healthy volunteers were given a single dose of 80 mg ribavirin of reference and test formulations.The drug was extracted from collected plasma and analyzed by LC/MS/MS.The pharmacokinetic parameters as well as relative bioavailability were measured.RESULTS:The calibration curve was linearwithin the range of 2 - 500 ng/mL (r2 =0.9944).The average recovery was more than 90 %.The average RSD within 3 days and between 3 days were all less than 10 %.The major pharmacokinetic parameters tmax 、Cmax 、t 1/2 、AUC0 -72 and AUC0~∞ of reference and test ribavirin formulations were (1.1 ±0.5) and (1.1 ±0.4) h, (249 ±89) and (232 ±65) ng/mL, (34 ±11) and (34 ±11) h, (2828 ±1215) and (2685 ±1096) nghmL -1, (3600 ±1568) and (3416 ±1379) nghmL -1.The relative bioavailability of test buccal tablet was(106 ±16) %. CONCLUSION:The method is more simple, more accurate and much more sensitive.There is no significant difference between the main pharmacokinetic parmeters of two formulations of ribavirin (P >0.05), they are bioequivalent.

Key words: ribavirin, pharmacokinetics, bioequiavailability, LC-MS/MS

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