Chemical structure and properties criteria to be considered for the evaluation of new active substance (NAS) status of chemical substances - Veterinary

Current version

PDF icon Adopted reflection paper

Reference numberEMA/CVMP/QWP/3629/2016
KeywordsNew active substance (NAS), salts, complexes, isomers, mixtures of isomers, derivative, esters and ethers
DescriptionThe paper describes the chemical structure and properties criteria to be taken into account by the CVMP to qualify a chemical active substance as NAS, as well as the required elements to be submitted by applicants to substantiate their claims.


Document history

First version

Current version

Adopted reflection paper

PDF icon Draft reflection paper

Published: 23/10/2017

Published: 17/11/2016

Related content


How useful was this page?

Add your rating