Observational studyDrug design, development and therapy2025
Exploring the Population Pharmacokinetic and Pharmacogenetics Characteristics of Flurbiprofen Isomers in Selective Joint Replacement Patients with Postoperative Pain.
Observational study in Drug design, development and therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
6 authors.
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Abstract
Purpose: Flurbiprofen plays a critical role in clinical pain management. This study aims to elucidate the population pharmacokinetic (PPK) profiles of flurbiprofen's enantiomers, R(-) and S(+)-flurbiprofen in human subjects, following intravenous administration, while investigating the influence of clinical covariates. Patients and Methods: PPK modeling of flurbiprofen isomers was based on a prospective study that included a total of 67 patients, each of whom had plasma and cerebrospinal fluid (CSF) samples collected at various time points within 5-50 min. Nonlinear mixed effects modeling was performed using Phoenix NLME. The final PPK model was validated using both Bootstrap and visual prediction checks. Modeling was used to assess the effect of demographic, biological, and pharmacogenetic (12 SNPs relatived to CYP2C9, ABCB1, PXR, POR and UGT1A9) covariates on clearance (CL) and apparent volume of distribution (V Results: A two-compartment model best fit the data. All patients were homozygous for the wild-type CYP2C9 allele. Plasma CL of S(+)-flurbiprofen was significantly influenced by ABCB1 (rs1045642) polymorphisms. For R(-)-flurbiprofen, body surface area (BSA) were related to V Conclusion: Key covariates of S (+)-flurbiprofen was ABCB1 gene polymorphisms and R-flurbiprofen was POR gene polymorphisms and BSA. The findings may provide support for future dose optimization and the development of novel therapeutic approaches.
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