primaryPurpose
Optional
Primary purpose, e.g. TREATMENT or SUPPORTIVE_CARE.
ClinicalTrials.gov Search: Studies by NCT, Condition
Pricing
from $0.10 / 1,000 studies
Search ClinicalTrials.gov studies by condition, drug, sponsor or status, or look up NCT IDs in bulk, via the official v2 API. Not medical advice.
type
Optional
study = paid. Free rows: invalid-input, no-results, not-found, api-error, free-plan-limit, charge-limit-reached.
nctId
Optional
NCT ID.
briefTitle
Optional
Brief title.
overallStatus
Optional
Overall status.
phase
Optional
Phases.
studyType
Optional
Study type.
conditions
Optional
Conditions.
interventions
Optional
Interventions (type, name).
leadSponsor
Optional
Lead sponsor.
enrollment
Optional
Enrollment count.
startDate
Optional
Start date.
lastUpdateDate
Optional
Last update posted.
locationsCountries
Optional
Countries with sites.
hasResults
Optional
Results posted.
studyUrl
Optional
Study page.
errorCode
Optional
Error code on free rows.
officialTitle
Optional
Full official study title.
acronym
Optional
Study acronym, when given.
organization
Optional
Organization that registered the study.
whyStopped
Optional
Reason given when the study stopped early.
allocation
Optional
Allocation, e.g. RANDOMIZED or NON_RANDOMIZED.
primaryPurpose
Optional
Primary purpose, e.g. TREATMENT or SUPPORTIVE_CARE.
masking
Optional
Masking (blinding), e.g. NONE, DOUBLE.
keywords
Optional
Keywords listed on the study.
leadSponsorClass
Optional
Lead sponsor type, e.g. INDUSTRY, NIH or OTHER.
collaborators
Optional
Collaborating organizations.
enrollmentType
Optional
ESTIMATED or ACTUAL enrollment.
sex
Optional
Sexes eligible: ALL, FEMALE or MALE.
minimumAge
Optional
Minimum eligible age, e.g. "18 Years".
maximumAge
Optional
Maximum eligible age, e.g. "64 Years".
healthyVolunteers
Optional
True when healthy volunteers are accepted.
primaryCompletionDate
Optional
Primary completion date.
completionDate
Optional
Study completion date.
firstPostDate
Optional
Date first posted on ClinicalTrials.gov.
locationsCount
Optional
Number of study sites.
locations
Optional
Study sites: facility, city, state, country and recruiting status (no contact details).
error
Optional
Free rows: plain-language error or reason.
message
Optional
Free status rows: what happened and what to change.
resultsDelivered
Optional
Free status rows: paid results returned before the run stopped.