Scoping review of existing in silico and PBK models for humans and rats

Abstract

Abstract One of EFSA research priority research areas is to better understand the role of toxicokinetic and its implementation into next generation risk assessment. Food ingredients and contaminants often lack data on their absorption, distribution, metabolism and excretion (ADME) properties, which are needed to model their bioavailability using Physiologically Based Kinetic (PBK) models. The project ADME4NGRA, “Implementing the EFSA NAMs roadmap through advancing toxicokinetic knowledge in chemical risk assessment”, aims to provide a list of NAM‐based ADME tools and guidance for parameterising PBK models for rats and humans. The first step (and aim of this report) is to characterise the landscape of available in silico models, in vitro‐in vivo extrapolation (IVIVE) methodologies and PBK models. The results of a scoping review and the assessment of currently available generic PBK platforms as well as newly developed and existing in silico models are herein reported and discussed, highlighting knowledge and data gaps relevant for the assessment of compounds occurring in food and feed.