摘要
目的 研究吡非尼酮在中国健康受试者单剂量及多剂量的药动学特征。方法 12名健康受试者随机分成低、中、高3个剂量组(200、400、600 mg)进行单次口服给药,其中400 mg组为多次给药组,连续给药5 d,每天3次,采集第3、4、5天早晨服药前和第5日服药后12 h内血样;采用高效液相色谱-质谱联用测定法测定血浆中吡非尼酮的浓度,并采用DAS程序对试验数据进行处理,计算药动学参数。结果 单次口服200、400、600 mg吡非尼酮的主要药动学参数ρmax分别为(5.00±1.42)、(9.43±2.74)、(14.14±3.36)mg·L-1,tmax分别为(0.57±0.33)、(0.60±0.30)、(0.60±0.38)h,t1/2分别为(2.16±0.77)、(2.15±0.75)、(2.01±0.76)h,AUC(0-∞)分别为(13.87±7.79)、(29.26±12.02)、(45.85±20.25)mg·h·L-1,AUC0-12分别为(13.27±7.08)、(27.92±10.56)、(43.98±18.14)mg·h·L-1。多次给药400 mg后的药动学参数ρmax为(9.46±2.77)mg·L-1,ρmin为(1.14±1.11)mg·L-1,tmax为(0.52±0.34)h,t1/2为(1.93±0.63)h,AUC0-∞为(26.74±13.49)mg·h·L-1,AUC0-12为(25.79±12.34)mg·h·L-1,AUCss为(23.53±10.59)mg·h·L-1。结论 吡非尼酮在200~600 mg内ρmax与AUC与剂量线性关系良好,药动学参数与文献值较为一致。
OBJECTIVE To study the pharmacokinetics of pirfenidone in Chinese healthy volunteer after a single dose and multiple-dose administration.METHODS Twelve Chinese healthy volunteers were randomly divided into low,medium and high dose groups( 200,400,600 mg).The multiple-dose group was administrated with pirfenidione 400 mg three times daily for 5 d.Intensive blood sampling was performed from 12 volunteers within 12 h after the single dosing and the last dose of the multiple dosing.HPLCMS / MS was used to determine the plasma concentrations of pirfenidone.The pharmacokinetic parameters were calculated by DAS software.RESULTS The main pharmacokinetic parameters of pirfenidone after single-dose administration of 200,400,600 mg qd as follows:ρmaxwere( 5.00 ± 1.42),( 9.43 ± 2.74) and( 14.14 ± 3.36) mg·L-1; tmaxwere( 0.57 ± 0.33),( 0.60 ± 0.30) and( 0.60 ±0.38) h; t1 /2were( 2.16 ± 0.77),( 2.15 ± 0.75) and( 2.01 ± 0.76) h; AUC0-∞were( 13.87 ± 7.79),( 29.26 ± 12.02) and( 45.85 ±20.25) mg·h·L-1; AUC0-12 were 为( 13.27 ± 7.08),( 27.92 ± 10.56) and( 43.98 ± 18.14) mg·h·L-1,respectively.The main pharmacokinetic parameters after 400 mg tid for 5 d were as follows:ρmaxwas( 9.46 ± 2.77) mg·L-1,ρminwas( 1.14 ± 1.11)mg·L-1,tmaxwas( 0.52 ± 0.34) h,t1 /2was( 1.93 ± 0.63) h,AUC0-∞was( 26.74 ± 13.49) mg · h · L-1,AUC0-12was( 25.79 ± 12.34) mg·h·L-1,AUCsswas( 23.53 ± 10.59) mg· h· L-1.CONCLUSION The pharmacokinetic parameters of pirfenidone show that ρmaxand AUC were linear in the dose range from 200-600 mg and the pharmacokinetic parameters were similar as reference.
出处
《中国药学杂志》
CAS
CSCD
北大核心
2015年第13期1134-1137,共4页
Chinese Pharmaceutical Journal
基金
广东省重大科技专项资助项目(2011A080300003)
广州市脑科医院广州市医学重点学科建设项目子项目资助项目(GBH2014-ZD07)