About VetTrials
VetTrials is a free, open-source aggregator of veterinary clinical trials. We pull listings from 30+ veterinary schools and institutions into a single searchable interface so vets, pet owners, and researchers can find studies in minutes instead of clicking through dozens of university websites.
Why this exists
Clinical trials are how new veterinary treatments come to market, and they're often free or subsidized for participating pets. But today, finding them is a manual scavenger hunt across institutional websites with no shared format. Veterinary oncologists in particular spend real time on this. We thought the data should be aggregated once, openly, and made available to everyone.
How it works
- A scheduled scraper visits each source's public clinical-trials page (no logins, no scraping behind paywalls).
- The page HTML is sent to Anthropic's Claude model with a structured-extraction prompt that returns trial data as JSON.
- The data is normalized (species names standardized, conditions categorized, locations mapped) and stored in a Postgres database.
- This site shows the aggregated results. Every trial card links back to the original source page so enrollment goes through the institution.
What we don't do
- We don't replace direct contact with institutions. VetTrials is a discovery tool. Enrollment, eligibility verification, and treatment all happen with the institution.
- We don't guarantee accuracy. Data is scraped and AI-extracted; it can be stale or wrong. Always confirm details with the source institution before making medical decisions.
- We don't scrape patient data. The only personal information we ingest is the publicly-listed contact info for principal investigators.
Open source
The entire codebase (scrapers, extraction prompts, API, and this UI) is open source under AGPL-3.0. You can self-host, fork, or contribute on GitHub. The most useful contribution is adding a new source. See the contributing guide in the repo.
Who built this
VetTrials was built by Evan Nison at NisonCo as an AI-consulting side project that grew into something we hope is genuinely useful. If it is, we'd love to hear from you.
Independence
VetTrials is an independent project and is not affiliated with the American Veterinary Medical Association (AVMA) or its veterinaryclinicaltrials.org registry, the universities we list, or any of the institutions whose trials appear here. The AVMA registry is one of our 30+ sources, and we link back to it (and to every other source) on every trial card. If you're looking for the official AVMA registry directly, visit their site.
Contact
General questions, partnership ideas, or feedback: evan@nisonco.com.
Institutions that would like to be removed, prefer a different scrape cadence, or want to provide a structured data feed: see our takedown and data-use policy.