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Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2012, Vol. 17 ›› Issue (6): 659-665.

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Population pharmacokinetics of cefaclor in healthy Chinese adult male volunteers

HUANG Ji-han1, HUANG Xiao-hui2, WANG Kun1, LI Jun2, ZHENG Qing-shan1   

  1. 1Department of Pharmacometrics, Center for Drug Clinical Research, Shanghai University of Chinese Medicine, Shanghai 201203, China;
    2Department of Basic and Clinical Pharmacology, School of Pharmacy, Anhui Medical University, Hefei 230032, Anhui, China
  • Received:2012-04-11 Revised:2012-05-08 Online:2012-06-26 Published:2012-06-25

Abstract: AIM: To develop a population pharmacokinetic model of cefaclor in healthy volunteers and evalute the effect of individual factors on the pharmacokinetics of cefaclor. METHODS: A nonlinear mixed-effect modeling was developed to analyze the data of cefaclor bioequivalence studies in healthy volunteers and calculate the related parameters and inter- and intra variabilties. RESULTS: two-compartment model with first order absorption was fitted to the cefaclor concentration data. The population value of CL, V2, V3, KA were 0.219 L/min, 35.9 L, 598 L, 0.042 min-1, respectively. CL was found to be significantly related to the covariate of weight. CONCLUSION: The population pharmacokinetic model can be used to provide accurate individual pharmacokinetic parameters. CL was significantly influenced by the covariate of weight, which showed that it is better to administer drug according to the per kilogram of body weight in clinical practice.

Key words: Amlodipine, Healthy Volunteers, Population Pharmacokinetics

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