Clinical Trials Monitor

Track clinical trials via the official ClinicalTrials.gov API v2 — new studies, record updates, results postings and sponsor pipelines across ~500k registered trials. No login, no API key.

Built for monitoring: watch a drug, condition or sponsor and pull only what changed since your last run.

Modes

Mode	What it returns
Search studies	Trials by term, condition, sponsor, intervention, status and phase — full structured records
Monitor record updates	Studies whose records changed in a date window — status flips, enrollment updates, protocol amendments, new postings
New results posted	Studies with results first posted in a window — the trial-readout tracker investors and BD teams watch
Sponsor pipeline	A sponsor's entire trial portfolio with statuses, phases and timelines

Example inputs

Watch a drug class — schedule daily, get only changed records:

{ "mode": "updates", "query": "semaglutide", "updatedAfter": "2026-09-22" }

Trial readouts this quarter (investor tracking):

{ "mode": "results", "resultsAfter": "2026-07-01", "sponsor": "Pfizer" }

Recruiting Phase 3 trials in a disease:

{ "mode": "studies", "condition": "lung cancer", "status": "RECRUITING", "phase": "PHASE3" }

Competitor pipeline:

{ "mode": "sponsor", "sponsor": "Novartis", "status": "RECRUITING" }

Output fields

nctId, title, status, whyStopped, hasResults, phases, studyType, enrollment, sponsor, sponsorClass, collaborators, conditions, interventions, interventionTypes, primaryOutcomes, startDate, primaryCompletion, completionDate, firstPosted, resultsFirstPosted, lastUpdatePosted, briefSummary, eligibilitySex, eligibilityAge, healthyVolunteers, locations, locationCount, url

Who uses this

• Pharma/biotech competitive intelligence — track rivals' trial status, completions and readouts
• Investors — results postings and status changes are market-moving events
• Business development — find partner/acquisition targets via pipeline views
• CROs & site networks — recruiting trials by geography and phase
• Researchers & patient advocacy — trial availability and eligibility monitoring

Scheduling

Records update constantly — new registrations, status changes, enrollment updates, results. Set an Apify schedule with updatedAfter = yesterday (daily) or last week (weekly) to emit only what changed. Same for resultsAfter to catch every readout.

Honest notes

• Data is the official ClinicalTrials.gov record — authoritative for registered trials. Sponsors self-report, so enrollment/completion dates are estimates until finalized.
• updates mode tracks record changes, not just status changes — a row means "something in this record changed since the date" (could be a status flip, new site, amended outcome, or minor edit). lastUpdatePosted tells you when.
• results mode uses ResultsFirstPostDate — the moment a readout goes public. Follow-up results post under the same NCT ID without resetting this date.
• Results-mode yields are slower than search yields — few trials post results.

Pricing

Pay per result — $1.00 per 1,000 rows, scaling down to $0.40 per 1,000 at volume tiers. No per-run fee. Free Apify plan covers ~5,000 rows/month.

Example output

{
  "recordType": "pipeline",
  "nctId": "NCT01302938",
  "title": "Web-based Methodology Trial to Evaluate the Efficacy and Safety of Tolterodine ER in Subjects With Overactive Bladder",
  "acronym": "REMOTE",
  "status": "TERMINATED",
  "whyStopped": "Stop date for randomization: 31/5/2012. Recruitment terminated due to lack of recruitment. No new safety issues were identified.",
  "hasResults": true,
  "phases": [
    "PHASE4"
  ],
  "studyType": "INTERVENTIONAL",
  "enrollment": 18,
  "sponsor": "Pfizer's Upjohn has merged with Mylan to form Viatris Inc.",
  "sponsorClass": "INDUSTRY",
  "collaborators": [],
  "conditions": [
    "Overactive Bladder"
  ]
}

FAQ

Does Clinical Trials Monitor need a login or API key? No — every row comes from public endpoints. Provide a proxy only if your network is heavily rate-limited.

How do I monitor on a schedule? Attach the actor to an Apify Schedule (daily/weekly) and use the watch/monitor mode if present — each run emits a fresh, diff-able dataset.

What does each row contain? See the output fields table above; every row carries a scrapedAt timestamp so datasets can be deduped across runs.

Is it legal to scrape this data? The actor only accesses publicly available data — the same pages/APIs a browser sees. Scraping public data for research, monitoring, and analysis is common practice, but platform Terms of Service and the rules in your jurisdiction still apply to how you use it. Consult legal counsel for your specific case.

More from this developer

• Municipal Data Monitor — new business licenses & permits across US cities
• Florida Business Filings — daily new FL LLCs/DBAs with owners & agents
• ImportYeti Monitor — US import bill-of-lading & supplier intel
• EU Company Registry Monitor — EU registry filings & officer-change alerts Monitors & business intel: Otodom Property Monitor · Fotocasa Property Monitor · Subito.it Monitor · Kleinanzeigen Monitor · Copart Auction Monitor · AutoScout24 Car Monitor · Indeed Job Monitor · Upwork Job Monitor · ATS Jobs Monitor · Sports Scores & Odds Monitor · Prediction Markets Monitor · Crypto Token Monitor · Crypto Derivatives Monitor · Google News Monitor · App Store Monitor · Walmart Product Monitor · Shopify Competitor Monitor · Craigslist Listing Monitor · Airbnb Rental Monitor · Zillow Property Monitor · Pump.fun Monitor · StockTwits Scraper · Yahoo Finance Scraper · Product Hunt Monitor · Hacker News Monitor · AI Visibility Tracker

Alt-social & OSINT: Gab Scraper · BitChute Scraper · Truth Social Scraper · Telegram Scraper · Discord Scraper · Rumble Video Scraper · Odysee Scraper · Kick Scraper · 4chan Scraper · Bitcointalk Scraper · Xiaohongshu / RedNote Scraper

Creator platforms: Bluesky Scraper · Threads Scraper · Farcaster Scraper · Spoutible Scraper · Pixelfed Scraper · Substack Notes Scraper · Dailymotion Scraper · Roblox Scraper

Gov & regulatory: Federal Register Monitor · Federal Court Monitor · FDA Compliance Monitor · Lobbying Monitor