ClinicalTrials.gov Scraper — Clinical Trials Data from the Official API

This ClinicalTrials.gov scraper pulls structured clinical trials data straight from the official ClinicalTrials.gov API — the world's largest clinical study registry. Use it as a clinical trial data API to extract trial status, phase, sponsor, conditions, interventions, eligibility and locations across 585,000+ studies worldwide, with no API key, no login and no blocking.

One run can return tens of thousands of trials filtered by condition, sponsor, keyword and status, then export them to CSV, JSON or Excel — ready for pharma intelligence, patient recruitment and clinical research.

What you get

Each dataset item is one clinical trial study. Output fields:

Field	Description
nctId	ClinicalTrials.gov registration number (NCT ID).
briefTitle	Short study title.
officialTitle	Full official study title.
acronym	Study acronym, if any.
organization	Organization that submitted the record.
overallStatus	Current trial status (e.g. RECRUITING, COMPLETED).
studyType	Study type (interventional, observational).
phases	Array of trial phases.
enrollmentCount	Number of participants enrolled or planned.
leadSponsor	Lead sponsor of the trial.
sponsorClass	Sponsor classification (industry, NIH, other).
collaborators	Array of collaborating organizations.
conditions	Array of conditions / diseases studied.
interventions	Array of interventions tested.
briefSummary	Short summary of the study.
sex	Eligible sex.
minimumAge / maximumAge	Age eligibility range.
healthyVolunteers	Whether healthy volunteers are accepted.
startDate	Trial start date.
completionDate	Overall completion date.
primaryCompletionDate	Primary completion date.
firstPostedDate	When the study was first posted.
lastUpdatePostedDate	When the study was last updated.
locations	Array of trial site locations (facility, city, state, country).
hasResults	Whether study results have been posted.
url	Direct link to the study on ClinicalTrials.gov.
scrapedAt	Timestamp of when the record was scraped.

Export every field to JSON, CSV, Excel (XLSX), XML or JSONLines via the Apify dataset and API.

Use cases

• Pharma & biotech competitive intelligence — track competitor trials by phase, sponsor and condition.
• CRO & patient recruitment — find recruiting trials by condition and location at scale.
• Investor & analyst research — monitor the clinical pipeline across the industry.
• Academic & medical research — build datasets from the world's largest trials registry.
• Journalism & policy — analyze trial trends, sponsor activity and enrollment data.

How to use

1. Click Try for free / Run on the Actor page (or call it via the Apify API).
2. Set your filters: condition (disease), searchTerm (free text), sponsor, and overallStatus.
3. Set maxStudies to cap the run, or 0 to capture everything matching your filters (up to ~585,000).
4. Run the Actor and download results as CSV, JSON or Excel — or connect to Google Sheets, a database or a webhook.

Input fields

Field	Type	Description
condition	string	Filter by condition or disease, e.g. diabetes, breast cancer, alzheimer. Leave empty for all.
searchTerm	string	Free-text search across the whole study record (intervention, sponsor, keyword). Leave empty for all.
sponsor	string	Filter by lead sponsor, e.g. pfizer, moderna, national cancer institute. Leave empty for all.
overallStatus	array	Filter by trial status, e.g. RECRUITING, COMPLETED, ACTIVE_NOT_RECRUITING. Leave empty for all.
maxStudies	integer	Maximum studies to save. 0 = all matching (up to ~585,000 across the whole database).

Example input

{
  "condition": "breast cancer",
  "searchTerm": "",
  "sponsor": "",
  "overallStatus": ["RECRUITING"],
  "maxStudies": 10000
}

FAQ

Is this an official ClinicalTrials.gov API or a scraper?

It reads data from the official ClinicalTrials.gov API, so the data is authoritative and stable. This Actor is not affiliated with ClinicalTrials.gov or the NIH.

Do I need an API key or login?

No. There is no ClinicalTrials.gov API key to register — you only need an Apify account. Just set your filters and run.

How much data can I get in one run?

A single run can return tens of thousands of studies. Set maxStudies to 0 to capture everything matching your filters, up to the full ~585,000-study database.

Is it legal to use this data?

ClinicalTrials.gov study records are public information published by the US National Library of Medicine. Use the data responsibly and in line with ClinicalTrials.gov terms.

What output formats are supported?

JSON, CSV, Excel (XLSX), XML and JSONLines, available through the Apify dataset and API.

Is this a ClinicalTrials.gov API alternative?

Yes. It works as an unofficial ClinicalTrials.gov API and data export tool — no API key registration or login required. You set filters and it returns structured trial data ready to use.

How do I export ClinicalTrials.gov data to CSV or JSON?

Run the Actor with your filters, then download the dataset as CSV, JSON, Excel or XML. It turns the trial registry into a clean clinical trials dataset (CSV/JSON) for analysis.

Can I scrape clinical trials without an API key?

Yes. This clinical trials data extraction tool reads from the official registry with no API key and no login — just an Apify account — and exports up to ~585,000 studies.

Scheduling & integration

Schedule the Actor on Apify to keep an always-fresh clinical trials database. Export results to JSON, CSV or Excel, call it from the Apify API, or connect it to Google Sheets, Airtable, databases or Slack with webhooks and no-code tools like Make, n8n and Zapier.

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Changelog

2026-06-07

• Docs: added coverage for ClinicalTrials.gov API alternative, exporting trial data to CSV/JSON, and scraping clinical trials without an API key.

2026-06-05

• 🛡️ Reliability fix: results are no longer dropped by strict output validation — runs now complete cleanly even at high volume (thousands of results).
• ⚡ Stability & performance hardening; fresh rebuild.

• 2026-06-01 — Maintenance & reliability pass: pulled the latest source and rebuilt the Actor on the current base image; build verified.

• 2026-05-25 — Maintenance & reliability pass: pulled the latest source and rebuilt the Actor on the current base image; build verified.

• 2026-05-20 — Maintenance pass: reviewed the input schema and default values for a smooth one-click start, and rebuilt the Actor on the latest base image.

2026-06-04

• Verified live & refreshed build — reliability/maintenance pass.