Evaluation of Model-Based Prediction of Pharmacokinetics in the Renal Impairment Population

Journal of Clinical Pharmacology
Ka Lai YeePravin R Jadhav

Abstract

Dose recommendations for specific populations are not always provided and, when available, typically rely on empirical derivation from a small fraction of the general population. In this study, a prediction/confirmation framework was applied to 2 model-based methods, physiologically based pharmacokinetics (PBPK) and a static model, to evaluate their ability to predict clearance in mild, moderate, and severe renal impairment populations and to inform dosing recommendations in these populations. Simulated renal impairment/healthy subject AUC ratios (AUCRs) from PBPK and static models were compared with observed AUCRs from dedicated clinical studies in renal impairment subjects for 7 drugs eliminated primarily by renal clearance. Both PBPK and static model predictions were within 2-fold of observed AUCRs for most compounds across all renal impairment categories. Predictions were generally more accurate for the mild and moderate renal impairment populations, with the majority of AUCR predictions within 80% to 125% of observed values for both methods. However, the accuracy of predictions was lower for the severe renal impairment population using the PBPK method. Given the accuracy observed, both methods may be suitable for prospecti...Continue Reading

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Jun 26, 2015·Journal of Clinical Pharmacology·Pravin R JadhavJ Robert Powell

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Citations

May 27, 2020·Clinical Pharmacology and Therapeutics·J Robert PowellDan Weiner
Oct 14, 2020·CPT: Pharmacometrics & Systems Pharmacology·Hiroyuki TakitaAleksandra Galetin

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