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ClinicalTrials.gov Study Search
x402
ClinicalTrials.gov Study Search is a paid API for AI agents from api.healthtravel-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-29).
Searches ClinicalTrials.gov via API v2 and returns up to 10 studies with NCT ID, title, status, phase, dates, sponsor, conditions, interventions, enrollment, and primary outcome.
Price / call$0.002
Success—
StatusUnknown
How this service works
ClinicalTrials.gov study search (API v2): NCT ID, title, status, phase, start and completion dates, sponsor, conditions, interventions, enrollment and primary outcome. Up to 10 studies per call.
Output
Returns a list of up to 10 clinical study records from ClinicalTrials.gov, each containing: NCT ID, study title, current status (e.g. recruiting, completed), phase, start and primary completion dates, lead sponsor name, conditions studied, interventions used, enrollment count, and primary outcome measure.
Example use cases
Recruiting trials for rare disease
“Find me up to 10 recruiting clinical trials for ALS on ClinicalTrials.gov — I need the NCT IDs, phases, sponsors, and what the primary outcomes are.”
Drug-specific trial research
“Search ClinicalTrials.gov for clinical studies involving pembrolizumab and return 5 results with their status, phase, and conditions being studied.”
Sponsor pipeline investigation
“Look up clinical trials sponsored by Pfizer on ClinicalTrials.gov — show me up to 10 studies with their titles, phases, enrollment numbers, and completion dates.”
Technical details
Endpoint
GEThttps://api.healthtravel-api.workers.dev/api/health/clinical-trials-gov?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need structured clinical trial data from the official ClinicalTrials.gov registry, including study status, phase, sponsor, interventions, and outcomes. Prefer this over general web search when you need machine-readable trial metadata for conditions, drugs, or sponsors. It is ideal for healthcare research agents, medical information tools, or anyone needing to audit or explore the clinical trial landscape for a specific topic.
Side effects
- Query string shorter than 2 or longer than 200 characters returns a validation error
- No matching studies found returns an empty results list
- max parameter out of range (1-10) causes an error
- ClinicalTrials.gov API v2 downtime results in upstream failure
- Ambiguous or misspelled search terms may return irrelevant or zero results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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