Alex Gauthier
ArticleManaging nitrosamine toxicological risk in late-stage development
When a nitrosamine drug substance-related impurity (NDSRI) is newly identified or increases above established control levels, opportunities for chemistry, manufacturing and control (CMC) mitigation may be limited. Toxicological assessment and impurity mitigation must therefore proceed in parallel. Alex Gauthier at Novartis reviews practical toxicological strategies for managing late-stage NDSRIs while maintaining patient safety and development timelines.