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Sample issue · Sep 21, 2026
How many US trials are recruiting right now?
22,041[1]
Studies with overall status Recruiting and at least one US location on ClinicalTrials.gov, as of Sep 21, 2026.
Oncology alone accounts for roughly a third of recruiting studies, which is why oncology sites see the most competition for the same patients and the strongest case for screening the whole chart rather than a diagnosis list. Area counts overlap because a study can list more than one condition.
- 1.ClinicalTrials.gov API v2 · U.S. National Library of Medicine, queried Sep 21, 2026.