ClinicalTrials.gov Clinical Trial Monitor

Monitor clinical trials on ClinicalTrials.gov by condition, phase, recruitment status, sponsor type, or geography. Pulls full study metadata straight from the official keyless API — no API key, no proxy, no captchas.

Built by Prime Sieve — solo dev intelligence for people who build, ship, and track what matters. Data-driven deep dives land in the Remote Signal newsletter.

Why this actor

Pharma, CROs, biotech investors, and clinical researchers all need a live pulse on trial activity. This actor gives you structured, filterable trial data in JSON/CSV in one run:

• Track competitors — see every Phase 3 INDUSTRY-sponsor trial a rival is running
• Site/CRO staffing signal — new recruiting trials = new capacity demand
• Therapeutic-area monitoring — every new trial for a condition, updated after a date
• Investor diligence — enrollment counts, completion dates, sponsor classes per vertical

What you get

Each dataset item is one trial with flattened, analyst-ready fields:

Field	What it is
nctId	ClinicalTrials.gov identifier (NCT...)
briefTitle / officialTitle	Study titles
overallStatus	RECRUITING, ACTIVE_NOT_RECRUITING, COMPLETED...
startDate / primaryCompletionDate / completionDate	Timeline dates
lastUpdatePostDate	When the record last changed (for monitors)
leadSponsor / leadSponsorClass	Sponsor + class (INDUSTRY, NIH, OTHER...)
collaborators	Partner orgs
studyType / phases / enrollmentCount	Design + size
conditions / interventions	Condition and treatment arms
eligibilityCriteria / healthyVolunteers / sex / minimumAge / maximumAge	Participant criteria
primaryOutcomes / secondaryOutcomes	Endpoint measures + timeframes
locations / locationsCount / countries	All trial sites, flattened
url	Link back to the study page

Input

Field	Default	Meaning
term	diabetes	Keyword / condition / drug, e.g. CAR-T, Alzheimer, NCT05233592
maxResults	50	Max studies to return (1–1000, paginated)
recruitmentStatus	[]	RECRUITING, COMPLETED, TERMINATED... (multi-select)
phase	—	EARLY_PHASE1, PHASE1, PHASE2, PHASE3, PHASE4, NA
sponsorType	—	INDUSTRY, NIH, OTHER_GOV...
studyType	—	INTERVENTIONAL, OBSERVATIONAL, EXPANDED_ACCESS
country	—	e.g. United States, Germany, Japan
updatedAfter	—	ISO date YYYY-MM-DD; only trials updated since then

Example use cases

• term: "Alzheimer" + phase: PHASE3 + sponsorType: INDUSTRY → competitive pipeline map
• term: "CAR-T" + recruitmentStatus: RECRUITING + country: "United States" → site staffing leads
• term: "diabetes" + updatedAfter: "2026-01-01" → what changed this year

Pricing

Pay-per-event. You are charged a small fixed fee per run plus a tiny per-study fee. Because the source is the official free API, results cost a fraction of scraped alternatives.

Notes

• Uses the official ClinicalTrials.gov API v2 — no anti-bot risk, no proxy cost.
• Data is public domain (US government); no auth needed.
• Dedupe by nctId if you run scheduled monitors and diff against previous runs.

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