Clinical Trials Watch — New & Updated Studies (ClinicalTrials.gov)

Know when a trial starts, changes or opens recruitment — the day it happens. One call per watched query: new and updated clinical trials by condition, sponsor or drug name, with phase, status, enrollment, interventions and countries as clean JSON, straight from the official ClinicalTrials.gov API.

Trial intelligence platforms charge thousands per seat. The raw signal — who is trialing what, in which phase, updated when — is public data. This Actor structures it for the price of an API call.

What you get per watched query

{
  "query": { "condition": "melanoma", "sponsor": null, "term": null },
  "totalInSource": 472,
  "returned": 100,
  "studies": [
    {
      "nctId": "NCT03698019",
      "title": "A Study to Compare the Administration of Pembrolizumab...",
      "status": "RECRUITING",
      "studyType": "INTERVENTIONAL",
      "phases": ["PHASE2"],
      "conditions": ["Melanoma"],
      "interventions": ["Pembrolizumab"],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsorClass": "NIH",
      "enrollment": 850,
      "startDate": "2018-11-05",
      "lastUpdate": "2026-07-02",
      "countries": ["United States", "Canada"],
      "siteCount": 124,
      "url": "https://clinicaltrials.gov/study/NCT03698019"
    }
  ]
}

Built for recurring watch

• updatedSince + a schedule = a rolling feed of only what changed: new trials, status flips, enrollment updates.
• Watch by what matters to you: a condition ("alzheimer"), a competitor sponsor ("Pfizer"), or a drug/mechanism as free term ("GLP-1").
• Status pre-filtered: default RECRUITING + NOT_YET_RECRUITING — the actionable window; ask for TERMINATED/SUSPENDED to catch failures early.
• Batch watchlists: up to 25 queries per run with per-query overrides.

Use cases

• Biotech BD / competitive intelligence: every new trial your competitors register, weekly.
• Investors: phase transitions and terminations are tradeable events — see them structured.
• CROs / site networks: new studies recruiting in your therapeutic areas and countries.
• Patient advocates: trials opening for a condition, with sites and countries.
• AI agents: "any new phase-3 trials for X since Monday?" — one tool call.

Input

Field	Description
condition / sponsor / term	What to watch (combine or use queries for a watchlist)
queries	Up to 25 watches per run
statuses	Default ["RECRUITING", "NOT_YET_RECRUITING"]; empty = all
updatedSince	YYYY-MM-DD — only studies updated on/after this date
maxStudiesPerQuery	Cap per query (default 100, max 1000)

Use with AI agents (MCP)

This Actor is exposed as a tool on the Apify MCP Server:

{
  "mcpServers": {
    "clinical-trials-watch": {
      "url": "https://mcp.apify.com?tools=jdepablos/clinical-trials-watch",
      "headers": { "Authorization": "Bearer <APIFY_TOKEN>" }
    }
  }
}

Pricing

Pay per event: one flat fee per watched query scanned — all matching studies in your window included. Failed queries are never charged.

FAQ

Is this medical advice? No. It is structured public registry data from the official U.S. National Library of Medicine API.

How fresh is it? ClinicalTrials.gov updates continuously; sponsors must post updates within strict windows. The Actor reads the live API.

Non-US trials? Yes — ClinicalTrials.gov includes trials worldwide (sites in 200+ countries), and countries is included per study.

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