PBPK model reporting template for chemical risk assessment applications

Area of Science:

• Pharmacokinetics and Toxicological Sciences
• Environmental Health
• Computational Biology

Background:

• Physiologically-based pharmacokinetic (PBPK) models are valuable tools for drug and chemical safety assessment.
• Widespread adoption of PBPK models for regulatory decision-making is hindered by a lack of standardized reporting guidelines.
• Existing pharmaceutical guidelines for PBPK analysis require expansion to encompass environmental chemicals.

Purpose of the Study:

• To develop a harmonized reporting template for PBPK analysis relevant to environmental chemicals.
• To enhance the utility of PBPK modeling in regulatory safety assessments.
• To facilitate the acceptance and integration of PBPK models by regulatory agencies.

Main Methods:

• Expansion of existing pharmaceutical PBPK reporting guidances.
• Inclusion of elements specifically relevant to environmental chemical assessments.
• Development of a customizable reporting template for public health agencies and researchers.

Main Results:

• A proposed harmonized reporting template for PBPK analysis, tailored for environmental chemicals.
• Recommendations for additional reporting elements beyond current pharmaceutical standards.
• A framework to support consistent and transparent PBPK model submissions.

Conclusions:

• The developed reporting template can standardize PBPK analysis for environmental chemicals.
• Adoption of this template will facilitate the use of PBPK modeling in regulatory risk assessment.
• This initiative promotes collaboration and the appropriate incorporation of pharmacokinetic data into safety decisions.