Population Pharmacokinetics of Methylphenidate in Healthy Adults Emphasizing Novel and Known Effects of Several Carboxylesterase 1 (CES1) Variants

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Y K Lyauk, C Stage, T K Bergmann, Laura Ferrero, D Bjerre, R Thomsen, K P Dalhoff, H B Rasmussen, G Jürgens

The aim of this study was to identify demographic and genetic factors that significantly affect methylphenidate (MPH) pharmacokinetics (PK), and may help explain interindividual variability and further increase the safety of MPH. d-MPH plasma concentrations, demographic covariates, and carboxylesterase 1 (CES1) genotypes were gathered from 122 healthy adults and analyzed using nonlinear mixed effects modeling. The structural model that best described the data was a two-compartment disposition model with absorption transit compartments. Novel effects of rs115629050 and CES1 diplotypes, as well as previously reported effects of rs71647871 and body weight, were included in the final model. Assessment of the independent and combined effect of CES1 covariates identified several specific risk factors that may result in severely increased d-MPH plasma exposure.

Original languageEnglish
JournalClinical and Translational Science
Volume9
Issue number6
Pages (from-to)337–345
ISSN1752-8054
DOIs
Publication statusPublished - Dec 2016

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