title: Case study illustrating the WHO IPCS guidance on characterization and application of physiologically based pharmacokinetic models in risk assessment.
abstract: The World Health Organization (WHO) International Programme on Chemical Safety (IPCS) Guidance on Characterization and Application of Physiologically Based Pharmacokinetic Models in Risk Assessment (IPCS, 2010) describes key principles for risk assessors and model developers. In the WHO Guidance, a template for model documentation was developed and a case study included. Here the WHO Guidance, including the template, is summarized and an additional case study is presented to illustrate its application, based upon an existing risk assessment for 2-butoxyethanol (CAS NO. 111-76-2). The goal of the WHO Guidance and the current paper is to increase regulatory acceptance of complex biologically descriptive pharmacokinetic (or toxicokinetic) models, such as PBPK models, by facilitating communication and successful interaction between modelers and risk assessors.
authors.affiliation: Institute of Population Health, University of Ottawa, 1 Stewart Street, Suite 309, Ottawa, ON, Canada K1N 6N5. bmeek@uottawa.ca
authors.forename: M E Bette
authors.initials: ME
authors.lastname: Meek
authors.forename: Hugh A
authors.initials: HA
authors.lastname: Barton
authors.forename: Jos G
authors.initials: JG
authors.lastname: Bessems
authors.forename: John C
authors.initials: JC
authors.lastname: Lipscomb
authors.forename: Kannan
authors.initials: K
authors.lastname: Krishnan
mesh_terms: D000818:Animals; D005026:Ethylene Glycols / Q000493:pharmacokinetics / Q000633:toxicity*; D015386:Hazardous Substances / Q000493:pharmacokinetics / Q000633:toxicity; D006801:Humans; D007391:International Cooperation; D008954:Models, Biological; D018570:Risk Assessment / Q000379:methods*; D014944:World Health Organization
chemical_list: D005026:Ethylene Glycols; D015386:Hazardous Substances; C017096:n-butoxyethanol