ClinicalTrials.gov Active Trials Scraper

Search ClinicalTrials.gov by condition and status — returns structured JSON with NCT IDs, phases, sponsors, and enrollment numbers.

Query the world's largest clinical trial registry with 500,000+ studies. Filter by disease, recruitment status, and result count. No API key required — uses the official ClinicalTrials.gov v2 REST API.

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What does this Actor do?

This Actor queries the ClinicalTrials.gov v2 API and returns structured records for each matching trial: NCT identifier, title, condition, trial phase, lead sponsor, enrollment count, start date, and a direct link to the trial page.

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Use Cases

1. Drug Development Pipeline Intelligence

A biotech analyst tracks all recruiting Phase 3 trials for a specific indication: condition: "non-small cell lung cancer", status: "recruiting". The output feeds a competitive intelligence dashboard that alerts the team when new sponsored trials are announced.

2. Patient Recruitment Research

A hospital research coordinator looks for all currently recruiting trials at their institution by searching condition: "heart failure", status: "recruiting", maxResults: 200. They cross-reference the NCT IDs with their patient database to identify eligible participants.

3. Academic Systematic Review

A medical student writing a thesis on immunotherapy needs all completed Phase 2 and 3 trials: condition: "checkpoint inhibitor melanoma", status: "completed". The structured JSON output (NCT ID, sponsor, enrollment, dates) is imported directly into their reference manager.

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Input

Field	Type	Required	Default	Description
condition	String	✅ Yes	—	Disease or medical condition to search
status	Enum	No	all	all, recruiting, completed, not_yet, active
maxResults	Integer	No	50	Maximum results to return (1–10,000)

Example Input

{
  "condition": "type 2 diabetes insulin resistance",
  "status": "recruiting",
  "maxResults": 100
}

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Output

{
  "nctId": "NCT05123456",
  "title": "Effect of Empagliflozin on Insulin Resistance in Type 2 Diabetes",
  "condition": "Type 2 Diabetes Mellitus; Insulin Resistance",
  "status": "RECRUITING",
  "phase": "PHASE3",
  "sponsor": "Boehringer Ingelheim",
  "startDate": "2023-06",
  "completionDate": "2026-12",
  "enrollmentCount": 450,
  "url": "https://clinicaltrials.gov/study/NCT05123456"
}

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Pricing

$0.008 per trial record.

Volume	Estimated Cost
50 results	~$0.40
500 results	~$4.00
5,000 results	~$40.00

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Technical Details

• Data source: ClinicalTrials.gov v2 REST API (official, public)
• Rate limiting: 1 request / 2 seconds
• Retry logic: 3 retries with exponential backoff
• Pagination: automatic via nextPageToken
• Node.js: v22 LTS