The OECD is seeking feedback on how to redesign toxicokinetics studies for particulate materials, where standard protocols fall short.
The outcome will shape how human health assessments are conducted for nano-enabled products across all OECD member countries.
OECD Requests Input on Draft Guidance for Toxicokinetics Testing of Nanoparticles
Summary
The OECD is conducting a public consultation on draft guidance for adapting toxicokinetics studies to nano- and microparticles. The consultation closes November 11, 2025.
The guidance addresses design considerations including dosing, formulation, and kinetic sampling to ensure toxicokinetics data accurately represent particulate materials. The document will support harmonized human health assessments for nano-enabled products across OECD member countries.