ClinicalTrials.gov Search - 576,000+ Clinical Trials, Studies & Results

Search 576,000+ clinical trials from ClinicalTrials.gov. Find trials by condition, drug, sponsor, or keyword. Get study status, phase, enrollment, interventions, eligibility, locations, and more.

No API key required. Free to try.

What data you get

Each trial result includes:

Field	Description	Example
NCT ID	Unique trial identifier	NCT04368728
Title	Brief study title	"Study of Pembrolizumab in Participants With Advanced Melanoma"
Status	Current recruitment status	RECRUITING, COMPLETED, TERMINATED
Phase	Trial phase	PHASE1, PHASE2, PHASE3, PHASE4
Sponsor	Lead organization	Pfizer, NIH, Memorial Sloan Kettering
Sponsor Class	Sponsor type	INDUSTRY, NIH, OTHER
Conditions	Diseases studied	["Breast Cancer", "HER2-positive"]
Interventions	Drugs/procedures tested	["Pembrolizumab (DRUG)", "Placebo (DRUG)"]
Enrollment	Participant count	600
Start/Completion dates	Trial timeline	2024-01-15 / 2027-06
Eligibility	Sex, age range	FEMALE, 18-65 Years
Locations	Trial sites	["MD Anderson Cancer Center, Houston, Texas, United States"]
Summary	Study description	Full paragraph of study purpose
URL	ClinicalTrials.gov link	https://clinicaltrials.gov/study/NCT04368728

Search types

Search by Condition/Disease

Find trials studying a specific condition:

• "breast cancer"
• "Alzheimer's disease"
• "type 2 diabetes"
• "COVID-19"

Search by Drug/Intervention

Find trials testing a specific drug or treatment:

• "Ozempic"
• "Keytruda"
• "pembrolizumab"
• "CAR-T cell therapy"

Search by Sponsor

Find all trials run by a specific organization:

• "Pfizer"
• "Novartis"
• "National Cancer Institute"
• "Memorial Sloan Kettering"

Search by Keyword

Full-text search across all fields:

• "CRISPR gene editing"
• "wearable device"
• "artificial intelligence radiology"

Lookup by NCT ID

Get full details for a specific trial:

• "NCT04368728"

Filters

Filter	Options
Status	RECRUITING, ACTIVE_NOT_RECRUITING, COMPLETED, NOT_YET_RECRUITING, SUSPENDED, TERMINATED, WITHDRAWN
Phase	EARLY_PHASE1, PHASE1, PHASE2, PHASE3, PHASE4
Study Type	INTERVENTIONAL, OBSERVATIONAL

Combine any search type with any filter. Example: search for "Pfizer" sponsor + PHASE3 + RECRUITING.

Use cases

• Pharma competitive intelligence: Track competitor pipelines by sponsor
• Investment research: Monitor drug development progress and timelines
• Patient recruitment: Find recruiting trials by condition and location
• Academic research: Survey trial landscape for a disease area
• Regulatory monitoring: Track trial completions and results
• Journalism: Investigate drug development trends and enrollment numbers

Input example

{
    "searchType": "condition",
    "query": "breast cancer",
    "status": "RECRUITING",
    "phase": "PHASE3",
    "maxResults": 50
}

Output example

{
    "nctId": "NCT04368728",
    "title": "Study of Pembrolizumab in Participants With Advanced Melanoma",
    "status": "RECRUITING",
    "phase": "PHASE3",
    "studyType": "INTERVENTIONAL",
    "startDate": "2024-01-15",
    "completionDate": "2027-06",
    "sponsor": "Merck Sharp & Dohme LLC",
    "sponsorClass": "INDUSTRY",
    "enrollmentCount": 600,
    "conditions": ["Melanoma"],
    "interventions": ["Pembrolizumab (DRUG)", "Placebo (DRUG)"],
    "summary": "This study will evaluate the efficacy and safety of...",
    "eligibilitySex": "ALL",
    "minAge": "18 Years",
    "locations": ["MD Anderson Cancer Center, Houston, Texas, United States"],
    "url": "https://clinicaltrials.gov/study/NCT04368728"
}

Data source

ClinicalTrials.gov is the world's largest clinical trial registry, maintained by the U.S. National Library of Medicine (NLM). It contains 576,000+ studies from 228 countries. FDA requires registration of most clinical trials involving drugs, biologics, and devices.

Pricing

Pay per result:

• $0.005 per result + $0.10 per actor start
• 50 results = ~$0.35
• 500 results = ~$2.60

Free tier available for testing.

Integration

Export to CSV, JSON, Excel, or connect via Apify API. Works with Zapier, Make, Google Sheets, and any tool that consumes REST APIs.

More Public Data Tools

This actor is part of a collection of 30 public data scrapers. All free to try, all on Apify:

• SEC EDGAR Company Filings -- 10-K, 10-Q, 8-K, insider trading for all public companies
• FEC Campaign Finance -- 50M+ individual donations, PACs, candidate fundraising
• IRS 990 Nonprofit Search -- Revenue, expenses, CEO pay for 2M+ nonprofits
• openFDA Drug Recalls -- Adverse events, recalls, drug labels
• U.S. Census ACS -- Demographics, income, housing for any geography
• BLS Economic Data -- CPI, unemployment, wages, JOLTS
• USDA FoodData Central -- 300K+ foods with full nutrition facts
• YellowPages Scraper -- US business leads with emails

See all 30 actors →