摘要
目的:研究黄杨宁口腔速崩片的人体相对生物利用度和生物等效性。方法:22名健康男性受试者,随机分组双交叉给予黄杨宁口腔速崩片(受试制剂)和黄杨宁片(参比制剂),剂量均为2mg,间隔为2周。分别于给药后120h内多点抽取静脉血,血浆样品经固相萃取(SPE)后用液质联用技术测定其中环维黄杨星D浓度。DAS2.0药动学程序计算相对生物利用度并评价两者的生物等效性。AUC0-120、AUC0-inf和Cmax经方差分析和双单侧t检验,tmax进行秩和检验。结果:单剂量给予受试制剂、参比制剂后血浆中的环维黄杨星D的Cmax分别为(121±55)、(122±52)ng/L;tmax分别为(10±7)、(12±8)h;AUC0-120分别为(4398±1656)、(4524±1760)ng·L^-1·h;AUC0→inf分别为(5292±2034)、(5440±2446)ng·L^-1·h。Cmax的90%可信区间为82.7%~117.3%;AUC-120的90%可信区间为83.9%。112.9%;AUC0→inf的90%可信区间为83.4%~117.6%。结论:受试制剂的人体相对生物利用度为(97.7±14.7)%,与参比制剂相比,两者具有生物等效性。
AIM: To study the relative bioavailability and bioequivalence of cyclovimbuxine D orally disintegrating tablets and cyclovimbuxine D tablets in healthy volunteers. MEEHODS: 2 mg of cyclovimbuxine D orally disintegrating tablets and cyclovimbuxine D tablets was given to 22 healthy volunteers in a randomized crossover study. The concentration of cyciovimbuxine D in plasma was determined by LC/MS/MS after a solid phase extraction (SPE). The pharmacokinetic parameters were calculated and the bioavailability and bioequivalence of two formulations were evaluated by DAS 2.0 software. RESULTS: After a single dose, the pharmacokinetic parameters of cyclovirobuxine D and reference were as follows: Cmax, (121±55) and (122±52) ng/L; tmax, (10±7) and (12 ± 8) h; AUC0-120h, (4398 ± 1656) and (4524 ±1760) ng·L^-1·h; AUC0→inf, (5292±2034) and (5440 ± 2446) ng·L^-1·h, respectively. The 90% confidential interval of Cmax of eyelovirobuxine D orally disintegrating tablet was 82.7% - 117.3%. The 90% confidential interval of AUC0-120 and AUC0→inf of eyelovirobuxine D orally disintegrating tablet were 83.9% - 112.9% and 83.4%-117.6%, respectively. CONCLUSION: The relative bioavailability of eyelovirbuxine D orally disintegrating tablets to eyelovirobuxine D tablets is (97.7 ± 14.7) %. The results of the statistic analysis show that the test and reference formulations are bioequivalent.
出处
《中国临床药理学与治疗学》
CAS
CSCD
2007年第7期824-827,共4页
Chinese Journal of Clinical Pharmacology and Therapeutics