countries · Conditions and interventions
Countries associated with trial recruitment or study locations, used by country filters.
type
text[]
scope
search
group
Conditions and interventions
sources
varies
Meaning
Countries associated with trial recruitment or study locations, used by country filters.
Countries are registry-reported location values with exact repeats removed; missing values do not prove no locations, so review release-level coverage and provenance.
Export shape
trials fieldjson
{
"countries": "example",
"_provenance": {
"countries": {
"source": "clinicaltrials-gov",
"source_url": "https://clinicaltrials.gov",
"effective": true
}
}
}Provenance
Field provenance follows the dataset contract: values are source-qualified, and records not cleared for the paid release stay out of commercial snapshot/API responses. Each release probes a bounded sample of this field's advertised evidence links; the check outcome is shown here, and a link that did not resolve renders as UNVERIFIED rather than as resolved.
RESOLVEDevidence link: 39 sampled clinicaltrials-gov/drks/eu-ctis/eudract/isrctn links resolved at the 2026-11-02 check
No field-specific provenance caveat is configured for this field. Review source-level terms at /docs/sources.