Negative EAT could probably result in ICH Q3B?

FDA scientists have obtained a positive in the EAT for N-nitroso-sertraline (reported May 2024, CAS number was not provided, cf. stereochemistry), so it is not per se the example for a first time that a consistent (E)AT negative yields an in vivo positive in my opinion.

Health Canada: Nitrosamine impurities Update July 26, 2024 - Nitrosamines in the News - Nitrosamines Exchange (usp.org)

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