The acquisition and application of absorption, distribution, metabolism, and excretion (ADME) data in agricultural chemical safety assessments.
A proposal has been developed by the Agricultural Chemical Safety Assessment (ACSA) Technical Committee of the ILSI Health and Environmental Sciences Institute (HESI) for an improved approach to assessing the safety of crop protection chemicals. The goal is to ensure that studies are scientifically appropriate and necessary without being redundant, and that tests emphasize toxicological endpoints and exposure durations that are relevant for risk assessment. Incorporation of pharmacokinetic studies describing absorption, distribution, metabolism, and excretion is an essential tool for improving the design and interpretation of toxicity studies and their application for safety assessment. A tiered approach is described in which basic pharmacokinetic studies, similar to those for pharmaceuticals, are conducted for regulatory submission. Subsequent tiers provide additional information in an iterative manner, depending on pharmacokinetic properties, toxicity study results, and the intended uses of the compound.
Barton
Hugh A
HA
U.S. Environmental Protection Agency, National Centerfor Computational Toxicology, Research Triangle Park, North Carolina, USA.
Pastoor
Timothy P
TP
Baetcke
Karl
K
Chambers
Janice E
JE
Diliberto
Janet
J
Doerrer
Nancy G
NG
Driver
Jeffrey H
JH
Hastings
Charles E
CE
Iyengar
Seshadri
S
Krieger
Robert
R
Stahl
Bernhard
B
Timchalk
Charles
C
D016573:Agrochemicals / Q000493:pharmacokinetics* / Q000633:toxicity; D000818:Animals; D006801:Humans; D018570:Risk Assessment; D017751:Safety Management
D016573:Agrochemicals