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POSTED 2026-04-16

MechoA+ profiler now available as an Addin to the OECD QSAR Toolbox

Predicting mechanisms of toxic action remains a key challenge in both toxicology and ecotoxicology.

With growing expectations around non-animal testing, the need for reliable and broadly applicable in silico tools has never been greater.

Together with Liverpool John Moores University, KREATiS developed MechoA+, a new structure-based profiler designed to predict Molecular Initiating Events (MIEs) by combining and refining existing mechanistic schemes.

Key features:
           • 152 structural alerts
           • Coverage of ~80% of chemicals out of 70,000+ substances

MechoA+ represents a significant step forward in mechanistic hazard assessment.

Now freely available as an add-in profiler in the OECD QSAR Toolbox — we encourage you to explore it.

A dedicated research publication is coming soon.

And big thanks to Geoff Hodges, Bruno Campos, Steve Gutsell, Jayne Roberts for their valued input over this project life!