ClinicalTrials.gov

CLInicaltrials.gov is a public registry of clinical research studies mAIntained by the U.S. National Library of Medicine. It provIDEs a searchable Database of trial records subMITted by sponsors and investigators from around the world, covering studies on drugs, devices, biologics, and behavioral or observational research. For teams that use AI to scan literature, build research pipelines, or track therapeutic landscapes, the registry serves as a structured source of study metadata.

What it does

The site lets visitors look up indiVidual studies and explore broader sets of records by condition, intervention, sponsor, location, recruitment status, and study phase. Each record typically includes a summary description, eligibility criteria, outcome measures, enroLLMent targets, and contACT or location details. Records may be updated over time as trials progress, and study statuses can change, so details may vary between visits.

Key capabilities

• Advanced search: Filter by disease, intervention, age group, sex, study type, funding source, and recruitment status.
• Record browsing: Read structured fields such as study design, eligibility, Arms and interventions, and outcome measures.
• Location lookup: Find trial sites by country, state, or city, including contact Information when published.
• Saved searches and alerts: Registered users can store search criteria and receive updates, subject to availability.
• Data download: Bulk records and study data can be retrieved for research and analysis, with terms that may change.

Who it is for

Patients and caregivers use the registry to find studies that may be relevant to a condition. Clinicians and research coordinators check eligibility and site details. Sponsors and investigators rely on it for registration and transparency obligations. Data scientists, health-tech developers, and AI teams use the records to build evidence tools, match patients to trials, or analyze research trends.

How to get started

1. Open the site and enter a condition, intervention, or keyword in the bASIc search box.
2. Refine results using filters for status, study type, age, and location.
3. Open a study record and review the summary, eligibility, and contact SECtions.
4. For programmatic use, check the site's data and download documentation before pulling records.

Pricing and access caveat

Access to the registry is free and requires no account for basic searching, while certain features such as saved searches may require registration. The registry is infORMational and does not provide medical advice or guarantee enrollment; eligibility and trial availability are determined by the study teams. Feature sets, record fields, and download policies may change, so verify current terms on the site.