ClinicalTrials.gov Database — Clinical Trial Search

Overview

Query the ClinicalTrials.gov API v2 (public, no authentication) to search and retrieve clinical trial data worldwide. Supports searching by condition, intervention, location, sponsor, and status; retrieving detailed study information by NCT ID; paginating large result sets; and exporting to CSV.

When to Use

• Searching for recruiting clinical trials for a specific condition or disease
• Finding trials testing a specific drug, device, or intervention
• Locating trials in a specific geographic region for patient referral
• Tracking a sponsor's or institution's clinical trial portfolio
• Retrieving detailed eligibility criteria, outcomes, and contacts for a specific trial
• Analyzing clinical trial trends (phases, enrollment, timelines) across a therapeutic area
• Exporting trial data for systematic reviews or meta-analyses
• Monitoring trial status changes and results postings
• For chemical compound bioactivity data use chembl-database-bioactivity instead; for published literature use pubmed-database

Prerequisites