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U.S. clinical trial registry API providing study protocols, recruitment status, results, and eligibility criteria for clinical research worldwide. Best for medical research workflows, tracking drug development pipelines, and finding ongoing studies for specific conditions. The authoritative registry for clinical trials — unlike OpenFDA (post-market data), ClinicalTrials.gov covers the research phase before drugs reach market. 2 example endpoints available through Lava’s AI Gateway. See the ClinicalTrials.gov API docs for full documentation.
This provider is managed — no additional setup required.
This is a catch-all provider — any valid URL under https://clinicaltrials.gov/api/v2 is supported. Clinical trial registry API. Construct URL as https://clinicaltrials.gov/api/v2/{endpoint}. Common endpoints: /studies?query.cond=, /studies/, /stats/size. The endpoints below are curated examples.

Endpoints

Search studies

GET https://clinicaltrials.gov/api/v2/studies?query.cond=diabetes&pageSize=3 — Free
const data = await lava.gateway('https://clinicaltrials.gov/api/v2/studies?query.cond=diabetes&pageSize=3', { method: 'GET' });

Get study by NCT ID

GET https://clinicaltrials.gov/api/v2/studies/NCT04280705 — Free
const data = await lava.gateway('https://clinicaltrials.gov/api/v2/studies/NCT04280705', { method: 'GET' });

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