Physiologically based pharmacokinetic model use in risk assessment--Why being published is not enough

McLanahan, ED; El-Masri, HA; Sweeney, LM; Kopylev, LY; Clewell, HJ; Wambaugh, JF; Schlosser, PM

HERO ID

1015422

Reference Type

Journal Article

Year

2012

Language

English

PMID

22045031

HERO ID 1015422
In Press No
Year 2012
Title Physiologically based pharmacokinetic model use in risk assessment--Why being published is not enough
Authors McLanahan, ED; El-Masri, HA; Sweeney, LM; Kopylev, LY; Clewell, HJ; Wambaugh, JF; Schlosser, PM
Journal Toxicological Sciences
Volume 126
Issue 1
Page Numbers 5-15
Abstract A panel of experts in physiologically based pharmacokinetic (PBPK) modeling and relevant quantitative methods was convened to describe and discuss model evaluation criteria, issues, and choices that arise in model application and computational tools for improving model quality for use in human health risk assessments (HHRAs). Although publication of a PBPK model in a peer-reviewed journal is a mark of good science, subsequent evaluation of published models and the supporting computer code is necessary for their consideration for use in HHRAs. Standardized model evaluation criteria and a thorough and efficient review process can reduce the number of review and revision iterations and hence the time needed to prepare a model for application. Efficient and consistent review also allows for rapid identification of needed model modifications to address HHRA-specific issues. This manuscript reports on the workshop where a process and criteria that were created for PBPK model review were discussed along with other issues related to model review and application in HHRA. Other issues include (1) model code availability, portability, and validity; (2) probabilistic (e.g., population-based) PBPK models and critical choices in parameter values to fully characterize population variability; and (3) approaches to integrating PBPK model outputs with other HHRA tools, including benchmark dose modeling. Two specific case study examples are provided to illustrate challenges that were encountered during the review and application process. By considering the frequent challenges encountered in the review and application of PBPK models during the model development phase, scientists may be better able to prepare their models for use in HHRAs.
Doi 10.1093/toxsci/kfr295
Pmid 22045031
Wosid WOS:000300989300003
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English
Keyword PBPK; benchmark dose; risk assessment; Markov chain Monte Carlo; ontology
Is Peer Review Yes