clinical_trials_search
Read-only
Search ClinicalTrials.gov for clinical trials by condition, drug, sponsor, status, phase, location, or free text. Filter by multiple criteria to find relevant studies.
Instructions
Search ClinicalTrials.gov for clinical trials by condition, drug/intervention, sponsor, status, phase, study type, location, title, or free text. Returns trial ID, title, status, phase, sponsor, conditions, enrollment, and hasResults flag. Use sponsor filter to track pharma company research (e.g. 'Pfizer', 'Moderna', 'NIH'). Use filter_advanced for Essie expressions like 'AREA[StartDate]RANGE[2024-01-01,MAX]'. Use agg_filters for shorthand filters: 'results:with', 'sex:f', 'healthy:y'.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| query | No | Free-text search across all fields | |
| condition | No | Disease or condition: 'lung cancer', 'diabetes', 'Alzheimer' | |
| intervention | No | Drug, device, or procedure: 'pembrolizumab', 'insulin' | |
| sponsor | No | Sponsor/collaborator: 'Pfizer', 'NIH', 'Moderna' | |
| titles | No | Title/acronym search: 'KEYNOTE', 'SPRINT' | |
| outcomes | No | Outcome measure search: 'overall survival', 'HbA1c' | |
| lead_sponsor | No | Lead sponsor name only (not collaborators): 'National Cancer Institute' | |
| study_id | No | Study ID search: 'NCT04852770' or org study ID | |
| location | No | Location search: 'California', 'Germany', 'Mayo Clinic' | |
| status | No | Trial status. Pipe-delimited for multiple: 'RECRUITING' (Currently recruiting participants), 'NOT_YET_RECRUITING' (Approved but not yet recruiting), 'ACTIVE_NOT_RECRUITING' (Ongoing but no longer recruiting), 'COMPLETED' (Trial has concluded), 'ENROLLING_BY_INVITATION' (Recruiting by invitation only), ... (14 total) | |
| phase | No | Trial phase: 'EARLY_PHASE1' (Early Phase 1 (exploratory)), 'PHASE1' (Phase 1 (safety/dosage in small group)), 'PHASE2' (Phase 2 (efficacy/side effects in larger group)), 'PHASE3' (Phase 3 (large-scale efficacy confirmation)), 'PHASE4' (Phase 4 (post-market surveillance)), 'NA' (Not applicable (non-drug studies)) | |
| study_type | No | Study type: 'INTERVENTIONAL' (Testing a drug, device, or procedure), 'OBSERVATIONAL' (Observing health outcomes without intervention), 'EXPANDED_ACCESS' (Making experimental treatment available outside trial) | |
| filter_advanced | No | Essie expression filter: 'AREA[MinimumAge]RANGE[MIN,18 years]' | |
| agg_filters | No | Aggregation filters: 'results:with,sex:f,healthy:y' | |
| sort | No | Sort field: '@relevance', 'LastUpdatePostDate', 'EnrollmentCount:desc' | |
| page_size | No | Results per page (default 10, max 100) | |
| page_token | No | Pagination token from previous response |