ClinicalTrials.gov Registry
Search and extract clinical trial data including safety endpoints, SAEs, and study design
7 toolsclinicaltrials-gov
Search Trials
Search clinical trials by drug, condition, sponsor, or status
query
Get Trial
Get full trial record by NCT ID
nct_id
Get Safety Endpoints
Extract safety and adverse event endpoints from a trial's outcomes module
nct_id
Get Serious Adverse Events
Get reported serious adverse events from trial results (requires posted results)
nct_id
Compare Trial Arms
Compare adverse event rates between treatment and control arms (requires posted results)
nct_id
Get Eligibility Criteria
Extract eligibility criteria (inclusion/exclusion), age range, sex, and healthy volunteer status from a trial
nct_id
Get Study Design
Extract study design details — randomization, blinding, masking, allocation, phases, enrollment, and arm count
nct_id