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中国临床药理学与治疗学 ›› 2013, Vol. 18 ›› Issue (1): 55-62.

• 临床药理学 • 上一篇    下一篇

盐酸伊伐布雷定片人体药动学研究

郑丽云1, 郭歆2, 余鹏1, 刘智2, 马岳惠2, 尹援华2, 罗茜1, 程泽能1   

  1. 1中南大学药学院生物药剂学及药物代谢动力学教研室,长沙 410013,湖南;
    2湖南泰格湘雅药物研究有限公司,长沙 410013,湖南
  • 收稿日期:2012-07-12 修回日期:2012-07-12 发布日期:2013-02-05
  • 通讯作者: 程泽能,通信作者,男,教授,博士生导师,研究方向:药物代谢及动力学研究。 Tel: 0731-82063078 E-mail: chengzenengcsu@yahoo.com.cn
  • 作者简介:郑丽云,女,硕士研究生在读,研究方向:药物代谢及动力学研究。 Tel: 15074975895 E-mail: liyuncsu@163.com

Pharmacokinetics of ivabradine in Chinese healthy volunteers

ZHENG Li-yun1, GUO Xin2, YU Peng1, LIU Zhi2, MA Yue-hui2, YIN Yuan-hua2, LUO Xi1, CHENG Ze-neng1   

  1. 1Research Institute of Drug Metabolism and Pharmacokinetics, School of Pharmaceutical Sciences, Central South University, Changsha 410013,Hunan,China;
    2Hunan Tiger Xiangya R&D Co., Ltd, Changsha 410013, Hunan, China;
  • Received:2012-07-12 Revised:2012-07-12 Published:2013-02-05

摘要: 目的: 研究盐酸伊伐布雷定片在中国健康志愿者中的单次及连续多次给药药动学特征。方法: 12例受试者采用随机开放二重3×3拉丁方试验设计,研究单次及连续多次给药药动学特征;采用LC-MS/MS法测定血浆中伊伐布雷定及其活性代谢产物S-18982的药物浓度。药动学参数采用WinNonlin软件计算。结果: 单次(5、10、15 mg)给药后伊伐布雷定的主要药动学参数:Cmax分别为(19±10)、(47±24)、(79±41) μg/L,tmax分别为(0.7±0.5)、(0.6±0.3)、(0.5±0.1) h; AUClast分别为(58±32)、(138±83)、(189±115) μg·h·L-1;AUCinf分别为(59±32)、(140±84)、 (191±116) μg·h·L-1;其活性代谢产物S-18982的主要药动学参数:Cmax分别为(3.1±1.2)、(7.9±2.8)、(15.0±5.4) μg/L; tmax分别为(1.1±0.8),(0.8±0.4),(0.6±0.1) h;AUClast分别为(17±8)、 (47±19)、 (76±29) μg·h·L-1;AUCinf分别为(20±8)、(52±21), (85±30) μg·h·L-1。连续多次给药 5 mg 后伊伐布雷定的主要药动学参数:Cmax(20±7) μg/L;tmax(1.0±0.7) h; AUClast( 67±32) μg·h·L-1; AUCinf (69±33) μg·h·L-1;其活性代谢产物S-18982的主要药动学参数:Cmax(4.5±1.3) μg/L;tmax(1.1±0.8) h; AUClast (34±11) μg·h·L-1; AUCinf (39±13) μg·h·L-1结论: 单次5~15 mg 给药后,伊伐布雷定的体内过程符合一级线性动力学过程,代谢产物S-18982的体内过程呈非线性;连续多次 5 mg 给药后,母药和代谢产物的血药浓度第5天可达稳态,母药在体内无蓄积,代谢产物存在蓄积现象。

关键词: 盐酸伊伐布雷定片, 高效液相色谱串联质谱法, 药动学

Abstract: AIM: To investigate the pharmacokinetics of ivabradine at single doses or multiple doses in Chinese healthy volunteers. METHODS: This open, random and doubled 3×3 latin clinical trial involved 12 healthy volunteers, who received three single doses and then multiple doses. The concentration of ivabradine and its active metabolite S-18982 in plasma were measured by liquid chromatography/tandem mass spectrometry and the pharmacokinetic parameters were calculated using WinNonlin program. RESULTS: The main pharmacokinetic parameters of ivabradine after single doses(5,10,15 mg)were as follows: Cmaxwere(19±10),(47±24),(79±41) μg/L, respectively; tmax were(0.7±0.5),(0.6±0.3),(0.5±0.1) h, respectively; AUClast were (58±32),(138±83),(189±115) μg·h·L-1,respectively; AUCinf were (59±32), (140±84), (191±116) μg·h·L-1,respectively. The main pharmacokinetic parameters of S-18982 after single doses(5,10,15 mg)were as follows: tmax were (3.1±1.2),(7.9±2.8),(15.0±5.4) μg/L ,respectively; tmax were(1.1±0.8),(0.8±0.4),(0.6±0.1)h, respectively; AUClast were (17±8), (47±19), (76±29) μg·h·L-1,respectively; AUCinf were (20±8),(52±21),(85±30) μg·h·L-1, respectively. The parameters(Cmax, tmax, AUClast, AUCinf )of ivabradine after multiple doses(5 mg)were(20±7) μg/L,(1.0±0.7)h, ( 67±32) μg·h·L-1, (69±33) μg·h·L-1,respectively; The parameters(Cmax, tmax, AUClast, AUCinf )of S-18982 after multiple doses(5 mg)were:(4.5±1.3) μg/L,(1.1±0.8) h, (34±11) μg·h·L-1,(39±13) μg·h·L-1,respectively.CONCLUSION: After 5-15 mg single doses administration, the pharmacokinetic results show that ivabradine exhibits first order kinetic characteristics, but S-18982 is nonlinear. After 5 mg multiple doses administration, ivabradine and S-18982 reach stable state on day 5, and ivabradine shows no accumulation, but S-18982 exists accumulation phenomenon.

Key words: Ivabradine, Liquid chromatography/tandem mass spectrometry, Pharmacokinetics

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