/clinicaltrials/studies/search
Search ClinicalTrials.gov clinical studies
Price: 1 credit
💡 AI Hint: Search ClinicalTrials.gov clinical studies. Combine free-text queries (term, condition, intervention, location, title, sponsor, outcome) with structured filters — recruitment status, trial phase, study type, results availability, accepted sex, funder type, specific NCT ids, a geographic radius (geo_latitude/geo_longitude/geo_distance_miles), or a raw advanced expression. Each result is a full study record (same shape as the studies endpoint). Sort by relevance or by date / enrollment fields.
Authorizations
API token from the dashboard
Headers
Body
Number of studies to return
x >= 1Max scrapping execution timeout (in seconds)
20 <= x <= 1500Free-text query across all study fields
"covid vaccine"
Condition or disease query
"diabetes"
Intervention or treatment query
"metformin"
Study location query (city, state, country)
"Boston"
Query matched against study titles and acronym
"KEYNOTE"
Sponsor or collaborator query
"Pfizer"
Outcome measure query
"overall survival"
Restrict to studies with one of these recruitment statuses
RECRUITING, NOT_YET_RECRUITING, ACTIVE_NOT_RECRUITING, ENROLLING_BY_INVITATION, COMPLETED, SUSPENDED, TERMINATED, WITHDRAWN, AVAILABLE, NO_LONGER_AVAILABLE, TEMPORARILY_NOT_AVAILABLE, APPROVED_FOR_MARKETING, WITHHELD, UNKNOWN Restrict to studies in one of these trial phases
0, 1, 2, 3, 4 Restrict to one of these study types
int, obs, exp Restrict to studies with or without posted results
with, without Restrict to studies accepting this sex
m, f Restrict to studies with one of these funder types
nih, fed, industry, other_gov, indiv, network, other, unknown Restrict to these specific NCT ids
["NCT00841061", "NCT00935818"]Latitude for geographic radius filter (requires geo_longitude)
-90 <= x <= 90Longitude for geographic radius filter (requires geo_latitude)
-180 <= x <= 180Search radius in miles around the geo point
x > 0Advanced Essie expression for fine-grained filtering
"AREA[Phase]PHASE3"
Field to sort results by
@relevance, LastUpdatePostDate, StudyFirstPostDate, EnrollmentCount, StartDate, CompletionDate, PrimaryCompletionDate, NumArmGroups Sort direction (ignored for relevance sort)
asc, desc Response
Successful Response