About Deffai
Built by the people
who set the FDA standards.
Deffai, founded in 2025, is an AI-native FDA regulatory affairs platform combining domain-specific AI with ex-FDA expertise for faster, more predictable approvals.
Core team
Our team bring a rich history of over 100 years of former FDA experience as scientists, reviewers, policy makers and decision-makers engaging with some of the world's most interesting, diverse, and specialized products.
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Our Story
We are biotech industry experts and former FDA leaders who spent years reviewing submissions, shaping policy, and watching promising therapies stall due to misaligned strategies and incomplete filings.
We saw an opportunity to apply AI to the problem, using it as a tool built on deep regulatory domain knowledge. Our AI is built specific to regulatory environments on review patterns and guidances, validated by the same people who used to set those expectations.
The result is a dedicated platform that helps life sciences companies move faster, reduce risk, and build stronger submissions at every stage.
Deffai is an independent firm and is not affiliated with the U.S. Food and Drug Administration.
Helping breakthroughs reach patients faster.
We are former FDA reviewers and decision-makers across CBER, CDER, and CDRH with 100+ years of combined experience across cell & gene therapy (CGT) including mRNA, AAV, ADC, immunotherapies for vaccines, oncology, regenerative medicine and tissue engineering for medical device and combination products.
We started Deffai to help teams understand and anticipate FDA expectations, so lifesaving medicines and devices can get to market faster.
Work with the team that set the bar.
Put former FDA reviewers — and the AI they built — on your next submission.