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中国临床药理学与治疗学 ›› 2004, Vol. 9 ›› Issue (10): 1183-1186.

• 研究原著 • 上一篇    下一篇

利鲁唑片在健康男性人体内生物等效性研究

蒋桂平1,2, 张宏文2, 王蔚青2, 刘瑞民3, 刘广余2, 胡刚1   

  1. 1南京医科大学药理学系,2南京药科大学第一附属医院临床药物研究室, 南京210029, 江苏;
    3上海卡乐康包衣技术有限公司, 上海201108
  • 收稿日期:2004-09-16 修回日期:2004-09-20 出版日期:2004-10-26 发布日期:2020-11-23
  • 通讯作者: 胡刚, 男, 博士, 教授, 博士生导师, 研究方向为临床药理与实验治疗学。Tel:025-86863169 E-mail:ghu @njmu. edu. cn
  • 作者简介:蒋桂平, 男, 主管药师, 在职硕士研究生。
  • 基金资助:
    江苏省教育厅产学研研究基金项目(№JH02026)

Bioequivalence of riluzole in healthy male volunteers

JIANG Gui-Ping1,2, ZHANG Hong-Wen1, WANG Wei-Qing1, LIU Rei-Min3, LIU Guang-yu, HU Gang2   

  1. 1Department of Pharmacology, Nanjing Medical University, Nanjing 210029;
    2Department of Clinical Pharmacology, the People' s Hospitle of Jiangsu Province, Nanjing 210029, Jiangsu, China;
    3Shanghai Colorcon Coating Technology Limited Co. Shanghai 201108, China
  • Received:2004-09-16 Revised:2004-09-20 Online:2004-10-26 Published:2020-11-23

摘要: 目的: 建立利鲁唑片生物浓度的固相萃取后HPLC-UV 检测方法, 研究其在健康男性人体内药代动力学和相对生物利用度。方法: 20 名健康男性志愿者单剂量随机交叉口服150 mg 利鲁唑片剂和进口参比制剂后于不同时间点静脉取血, 血浆经固相萃取, 甲醇洗脱吹干后用少量甲醇溶解后, 采用高效液相色谱-紫外检测器, 应用内标法计算利鲁唑浓度。结果: 利鲁唑片与参比制剂的主要药动学参数Cmax 分别为930 ±321 和798 ±306 μg·L-1, tmax 分别为0. 8 ±0. 5 和1. 2 ±0. 7 h, AUC0 ~ t 分别为3361 ±890和3301 ±886 μg·h-1·L-1,AUC0 ~ ∞分别为3661 ±886和3614 ±885 μg·h-1·L-1, t1/2 分别为8. 2 ±2. 8 和8. 1 ±2. 6 h 。AUC0 ~ t 和Cmax 的90 %置信区间为:96. 11 %~ 107. 77 %和101. 6 % ±135. 9 %。AUC0~ t 相对生物利用度为102. 8 %±15. 5 %。结论: 国产利鲁唑片剂和进口片两种制剂生物等效。

关键词: 固相萃取法, 高效液相色谱, 利鲁唑, 生物等效性, 药代动力学

Abstract: AIM: To develop a HPLC-UV method to determine the concentration of riluzole in human plasma and study its bioequivalence.METHODS: Single oral dose (150 mg)of riluzole (national procted and import) was given to 20 healthy male volunteers in a randomized cross-over study. Riluzole was extracted from plasma by solid-phase extraction and assaved by a validated highperformance liquid chromatography (HPLC)method with UV detection. Plasma samples (1. 0 ml) applied to a 1 ml C18 solid phase columns. The columns were washed sequentially with distilled water (1ml), and 30 %(volume/volume)methanol. The samples were eluted with 1 ml methanol and dried under a stream of nitrogen. The samples were applied to the HPLC in little methanol. Riluzole was isolated then and detected by UV absorption of 265 nm.Variance analysis and two-one sided test statistical analysis were performed for pharmacokinetic parameters.RESULTS: The main pharmacokinetic parameters of riluzole (the national procted and import)were as follows: Cmax: 930 ±321 μg·L-1 and 798 ±306 μg·L-1; tmax: 0. 8 ±0. 5 and 1. 2 ±0. 7 h; AUC0 ~ t 3361 ±890 μg·h-1 ·L-1 and 3301 ±886 μg·h-1 ·L-1; AUC0 ~ ∞: 661 ±886 μg·h-1·L-1 and 3615 ±885 μg·h-1·L-1; t1/2:8. 2 ±2. 8 and 8. 1 ±2. 6 h. The relative bioavailability of AUC0~ 36 was (102. 8 ± 15. 5)%.CONCLESION: The two formulations were bioequivalent.

Key words: solid-phaseextraction, HPLC, bioequivalence, pharmacokinetics

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