Open data, open models, and community blind challenges for predicting drug absorption, distribution, metabolism, excretion, and toxicity.

The CYP Inhibition Blind Challenge has wrapped up
New Preprint
September 2026 · ChemRxiv

Operational Insights from the Front Lines of OpenADMET: Lessons from Our Blind Challenges

MacDermott-Opeskin, H.; Castellanos, M.; Swain, J. A.; Scheen, J.; Colby, S.; Channing, G.; Simpkins, S.; Warneford-Thompson, R.; Correy, G. J.; Handly, L. N.; Kosuri, S.; Chodera, J. D.; Fraser, J. S.; Walters, W. P. What running OpenADMET’s blind challenges has taught us about the gap between reported model performance and using ADMET models in live drug discovery projects.

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About

Building open ADMET models for drug discovery

An open science effort to improve prediction of safety and toxicity for small molecules through high-quality data, mechanistic insight, and machine learning.

Blind Challenges

Latest Challenge
CYP Inhibition Blind Challenge

Predicting direct and time-dependent inhibition across four major CYP isoforms: CYP3A4, CYP2C9, CYP2D6 and CYP1A2.

Datasets & Models

HuggingFace
17 open models and 12 curated ADMET datasets

Predictive models and experimental datasets from OpenADMET blind challenges and data generation efforts.

Blog

November 5, 2026
Take Me Heme, Binding Modes: Wrapping up the CYP Inhibition Challenge

Let’s have those country roads take us to the finish line! After 2 months and more than 6,000 submissions, we finally have our winners.

Videos

October 12, 2026
Hugo MacDermott-Opeskin, OpenADMET: A Machine Learning First Approach to ADMET and Drug Discovery

Science seminars, challenge webinars, and workshop recordings from the OpenADMET community.

People

Our Team
Get to Know the OpenADMET Team

Meet the OMSF staff, Governing Board, and our collaborators from Octant and UCSF.

Publications

PubMed Central
Blind Challenges Let Us See the Path Forward for Predictive Models

A perspective on how blind challenges can help the field honestly evaluate and advance predictive modeling in drug discovery.

Community Policies

“Open” is our first name

Our open science commitments on data, software, and publishing, and the Code of Conduct for our community and blind challenges.