ClinicalTrials.gov Search: Studies, Phases, Sponsors & Status

Search the 500,000+ studies registered on ClinicalTrials.gov by condition, drug, sponsor, phase, recruitment status, location and date, and get one clean JSON row per study. It uses the official ClinicalTrials.gov API from the U.S. National Library of Medicine. No login, no API key, no browser, no proxies, so runs are fast and don't break when the website changes.

$1.50 per 1,000 studies. You pay only for studies saved to your dataset. Searches with no matches cost nothing, and there's no start fee.

What you can use it for

• Pharma and biotech competitive intelligence: list every Phase 2 and 3 trial a competitor sponsors, or every industry trial for a disease, with status, enrollment and key dates.
• Business development and sales: find sponsors and sites running trials in your area. A new trial is a strong buying signal for CROs, recruitment vendors, labs and suppliers.
• Investors and analysts: track pipelines, terminated studies and upcoming primary completion dates.
• Researchers and patient-recruitment teams: pull recruiting studies for a condition by country, state or city.
• Monitoring: schedule it daily with Only new or updated studies turned on and get just the trials that were posted or changed since the last run.
• AI agents and RAG: feed structured trial data into an LLM pipeline without scraping.

Input

Field	What it does
Conditions or diseases	E.g. melanoma, type 2 diabetes. Any of them. Synonyms and medical subject terms match too.
Drugs or interventions	E.g. pembrolizumab, semaglutide.
Sponsors or collaborators	E.g. Pfizer, National Cancer Institute.
Other keywords	Free text searched across the whole study record.
Location	City, state or country with a study site, e.g. Texas, Germany.
NCT numbers	Look up specific studies, e.g. NCT04280705.
Recruitment status	Recruiting, not yet recruiting, active, completed, terminated and the other official statuses.
Phase	Early Phase 1 to Phase 4, or not applicable.
Study type / Lead sponsor type	Interventional, observational or expanded access; industry, NIH, other federal, university and others.
Only studies with posted results	Keep studies that have results on ClinicalTrials.gov.
Updated since / First posted since	YYYY-MM-DD or a relative period like 7 days.
Sort by	Most recently updated (default), most recently posted, latest start date, or best match.
Max results	Stop after this many studies (default 100).
Include brief summary / eligibility criteria / site list	Optional longer fields, off by default to keep rows small.
Only new or updated studies since the last run	Monitor mode. Use Monitor name to keep separate watch lists.

Example input:

{
  "conditions": ["non-small cell lung cancer"],
  "phases": ["PHASE2", "PHASE3"],
  "statuses": ["RECRUITING", "NOT_YET_RECRUITING"],
  "sponsorClass": "INDUSTRY",
  "location": "United States",
  "maxResults": 500
}

Output

One row per study (values illustrative):

{
  "nctId": "NCT09990001",
  "title": "EX-101 in Advanced Melanoma",
  "officialTitle": "A Study of EX-101 in Advanced Melanoma",
  "status": "RECRUITING",
  "studyType": "INTERVENTIONAL",
  "phases": ["PHASE2"],
  "phase": "PHASE2",
  "conditions": ["Melanoma", "Skin Cancer"],
  "meshTerms": ["Melanoma", "Skin Cancer"],
  "interventions": ["Drug: EX-101"],
  "interventionTypes": ["DRUG"],
  "leadSponsor": "Example Oncology Inc",
  "leadSponsorClass": "INDUSTRY",
  "collaborators": ["Example University"],
  "enrollment": 120,
  "enrollmentType": "ESTIMATED",
  "allocation": "NA",
  "primaryPurpose": "TREATMENT",
  "masking": "NONE",
  "primaryOutcomes": ["Overall response rate"],
  "sex": "ALL",
  "minimumAge": "18 Years",
  "startDate": "2026-09-15",
  "primaryCompletionDate": "2028-06",
  "completionDate": "2029-01",
  "firstPostedDate": "2026-09-01",
  "lastUpdatedDate": "2026-10-30",
  "hasResults": false,
  "locationCount": 3,
  "countries": ["United States", "Canada"],
  "url": "https://clinicaltrials.gov/study/NCT09990001",
  "source": "clinicaltrials.gov",
  "scrapedAt": "2026-11-02T18:02:11.000000+00:00"
}

Optional fields add briefSummary, eligibilityCriteria and locations (facility, city, state, country and site status). In monitor mode each row also has changeType: new or updated. Dates are as registered, so some are month-only (2028-06).

Names, emails and phone numbers of study contacts and investigators are deliberately left out. Open the study link to see who to contact.

Download results as JSON, CSV or Excel, or send them to Google Sheets, Zapier, Make or n8n. The run also saves a SUMMARY record with how many studies matched, how many were saved, and the exact API query used.

Pricing

Pay per event: $0.0015 per study saved ($1.50 per 1,000). No start fee. Set a maximum charge per run in the run options and the Actor stops cleanly when it's reached.

Tips

• Leave Sort by on Most recently updated for monitoring, so the newest changes come first.
• A Phase 2/3 study matches a search for Phase 2 and a search for Phase 3.
• Use Updated since = 1 day with a daily schedule for a lightweight change feed, or turn on monitor mode to catch every change exactly once.

Data source and terms

Data comes from the official ClinicalTrials.gov API, run by the U.S. National Library of Medicine at the National Institutes of Health. It's public registry data. The Actor uses only that documented API, stays under its published guidance of about 50 requests per minute, doesn't log in anywhere and doesn't scrape websites. This Actor isn't affiliated with or endorsed by NLM, NIH or ClinicalTrials.gov.