Statuses & usage notes

Code snippets

curl "https://api.oanor.com/clinicaltrials-api/v1/meta" \
  -H "x-oanor-key: oanor_test_..."

await fetch("https://api.oanor.com/clinicaltrials-api/v1/meta", {
  headers: { "x-oanor-key": "oanor_test_..." }
});

$ch = curl_init("https://api.oanor.com/clinicaltrials-api/v1/meta");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);

import requests
requests.get(
    "https://api.oanor.com/clinicaltrials-api/v1/meta",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "note": "Clinical studies. /v1/search = search by condition=, term=, intervention=, location= and status= (RECRUITING, COMPLETED, …), with page_size and page_token paging (next_page_token returned); /v1/study = a full study by NCT id (e.g. id=NCT00841061) with conditions, interventions, phases, sponsor, eligibility and sites. Data from the U.S. NIH ClinicalTrials.gov registry.",
        "source": "ClinicalTrials.gov v2 API",
        "statuses": [
            "RECRUITING",
            "NOT_YET_RECRUITING",
            "ENROLLING_BY_INVITATION",
            "ACTIVE_NOT_RECRUITING",
            "COMPLETED",
            "SUSPENDED",
            "TERMINATED",
            "WITHDRAWN",
            "AVAILABLE",
            "NO_LONGER_AVAILABLE",
            "UNKNOWN"
        ],
        "endpoints": [
            "/v1/search",
            "/v1/study",
            "/v1/meta"
        ]
    },
    "meta": {
        "timestamp": "2026-06-01T00:04:35.955Z",
        "request_id": "d04a15f3-83ce-4203-a043-4e0236252bd4"
    },
    "status": "ok",
    "message": "Meta retrieved",
    "success": true
}