ClinicalTrials.gov Studies - Search 600K Trials

The public ClinicalTrials.gov registry: 607,529 registered studies as of 20 October 2026. Search by condition, intervention, sponsor, location, status, phase, study type, sex or date, and get the study facts that matter for pipeline, BD and clinical-intelligence work.

Low cost

From $0.00005 per record, down to $0.00003 at Gold. Pay only for the studies you receive.

What you get per study

field	meaning
nctId	registry identifier, e.g. NCT06022965
briefTitle, officialTitle	study titles
overallStatus	Recruiting, Active, not recruiting, Completed, Terminated, ...
studyType, phase	interventional / observational and phase
conditions, interventions	conditions studied and interventions tested
leadSponsor, sponsorClass, collaborators	sponsor and collaborators (NIH, industry, other)
enrollmentCount, enrollmentType	target or actual enrollment
startDate, primaryCompletionDate, completionDate	study timeline
firstPostedDate, lastUpdatePostDate	registry publication and update dates
sex, minimumAge, maximumAge, healthyVolunteers	eligibility summary
locations, locationCount	trial sites (facility, city, state, zip, country)
briefSummary	sponsor's plain-language summary
sourceUrl	the study page on ClinicalTrials.gov

Search it

• Condition - condition="diabetes".
• Intervention - intervention="pembrolizumab".
• Sponsor - sponsor="Novo Nordisk".
• Location - location="Texas".
• Status - status="RECRUITING" (comma-separate several).
• Phase - phase="PHASE3" (EARLY_PHASE1, PHASE1-PHASE4, NA).
• Study type - studyType="INTERVENTIONAL".
• Dates - updatedFrom / updatedTo for registry updates; startFrom / startTo for study start dates.

Example inputs

Recruiting phase-3 diabetes trials

{ "condition": "diabetes", "status": "RECRUITING", "phase": "PHASE3",
  "maxResults": 50 }

One sponsor's pipeline

{ "sponsor": "Novo Nordisk", "studyType": "INTERVENTIONAL",
  "maxResults": 50 }

One intervention across all phases

{ "intervention": "pembrolizumab", "maxResults": 100 }

Recently updated studies in Texas

{ "location": "Texas", "updatedFrom": "2026-10-01", "maxResults": 50 }

Studies starting in a window

{ "condition": "breast cancer", "startFrom": "2027-01-01",
  "startTo": "2027-12-31", "maxResults": 50 }

Example output

Long list fields are trimmed here; real rows carry every value.

{
 "nctId": "NCT06763328",
 "briefTitle": "Metformin for the Treatment of Insulin Resistance in Women With Stage I-III Breast Cancer Completing Chemotherapy",
 "overallStatus": "RECRUITING",
 "studyType": "INTERVENTIONAL",
 "phase": "PHASE3",
 "conditions": "Anatomic Stage I Breast Cancer AJCC v8; Invasive Breast Carcinoma",
 "interventions": "Biospecimen Collection; Extended Release Metformin Hydrochloride",
 "leadSponsor": "City of Hope Medical Center",
 "sponsorClass": "OTHER",
 "collaborators": "National Cancer Institute (NCI)",
 "enrollmentCount": "80",
 "enrollmentType": "ESTIMATED",
 "startDate": "2025-01-13",
 "primaryCompletionDate": "2031-06-16",
 "completionDate": "2031-06-16",
 "firstPostedDate": "2025-01-08",
 "lastUpdatePostDate": "2026-10-19",
 "sex": "FEMALE",
 "minimumAge": "18 Years",
 "healthyVolunteers": "No",
 "locationCount": 3,
 "sourceUrl": "https://clinicaltrials.gov/study/NCT06763328"
}

Notes on the data, from the source

• One row = one registered study, not one site. Multi-site studies carry their locations in locations (up to 2,000 characters) and the full site count in locationCount.
• Sponsor-submitted. ClinicalTrials.gov is a registry, not an independently verified audit: statuses and dates are as submitted by the sponsor.
• No personal contact data. Contacts and overall officials are excluded; the actor returns institution, city and country only.
• Default run returns the 50 most recently updated studies.
• Public data. ClinicalTrials.gov is a service of the U.S. National Library of Medicine and its registry data is publicly available.

Data source: clinicaltrials.gov API v2 (U.S. National Library of Medicine).