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Open Access 03-02-2025 | Original Research Article

Evaluation of Solubility-Limited Absorption as a Surrogate to Predicting Positive Food Effect of BCS II/IV Drugs

Authors: Karine Rodriguez-Fernandez, José David Gómez-Mantilla, Suneet Shukla, Peter Stopfer, Peter Sieger, Victor Mangas-Sanjuán, Sheila Annie Peters

Published in: Clinical Pharmacokinetics

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Abstract

Introduction and Objective

Physiologically based pharmacokinetic (PBPK) models are increasingly used to predict food effect (FE) but model parameterization is challenged by in vitro–in vivo (IVIV) disconnect and/or parameter nonidentifiability. To overcome these issues, we propose a simplified PBPK model, in which all solubility-driven processes are lumped into a single parameter, solubility, which is optimized against observed concentration–time data.

Methods

A set of commercially available biopharmaceutical classification system (BCS) II/IV compounds was selected to measure the solubility in a fasted state simulated intestinal fluid (FaSSIF) medium. The compounds were ranked from the lowest to the highest dose-adjusted FaSSIF solubility (FaSSIF/D) value and subdivided into three areas based on an upper and a lower limit: drugs with FaSSIF/D > upper limit having no FE, drugs with FaSSIF/D < lower limit having FE, and drugs between the limits said to be in the sensitivity range (SR), for which we tested the hypothesis that solubility-limited absorption (SLA) identified by simplified PBPK model can reliably predict positive FE if their exposures are not impacted by gut efflux or gut metabolism.

Results

We demonstrate, using a subset of drugs within SR for which PBPK models were available, that drugs with SLA exhibited a positive FE, while those with no SLA did not show FE.

Conclusions

This proposal allows for a reliable binary prediction of FE to enable timely decisions on the need for pilot FE studies as well as the timing of pivotal FE studies.

Graphical Abstract

Appendix
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Literature
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go back to reference GP. Simulations Plus, Manual GastroPlus™, California, EUA; 2010. GP. Simulations Plus, Manual GastroPlus™, California, EUA; 2010.
Metadata
Title
Evaluation of Solubility-Limited Absorption as a Surrogate to Predicting Positive Food Effect of BCS II/IV Drugs
Authors
Karine Rodriguez-Fernandez
José David Gómez-Mantilla
Suneet Shukla
Peter Stopfer
Peter Sieger
Victor Mangas-Sanjuán
Sheila Annie Peters
Publication date
03-02-2025
Publisher
Springer International Publishing
Published in
Clinical Pharmacokinetics
Print ISSN: 0312-5963
Electronic ISSN: 1179-1926
DOI
https://doi.org/10.1007/s40262-025-01473-9