Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Cancer of Unknown Primary Site clinical trials
1 of 1 indexed Cancer of Unknown Primary Site trials are currently recruiting.
Corpus placement: #11,370 of 28,707 conditions by registered trial count.
1 US clinical trials · 1 currently recruiting · #11,370 of 28,707 conditions by registered trial count
Cancer of Unknown Primary Site: 1 US clinical trial tracked, 1 recruiting.
Cancer of Unknown Primary Site is the subject of 1 registered US clinical trials on ClinicalTrials.gov, 1 of them currently open to new participants. The most active sponsor is TargetCancer Foundation, running 1 of these trials.
Enrollment posture brief
Registry condition cancer-of-unknown-primary-site
OPEN 1 | RECR 100% | LATE 0 | EARLY 0 | RANK #11370 | SPON 1
Volume-matched condition peers
Nearest open-share peer: Aortic Arch Aneurysm (100% recruiting · 5 trials)
Cancer of Unknown Primary Site lists 1 open slots (100% of 1 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Cancer of Unknown Primary Site on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
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Cancer of Unknown Primary Site is recruiting above its size-band peers.
1 of 1 indexed trials (100%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
Open and recent trials
1 total, page 1 of 1
Phase Distribution
Phase data not available
Top Sponsors
Named interventions
Most-linked intervention names on Cancer of Unknown Primary Site records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Cancer of Unknown Primary Site trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Cancer of Unknown Primary Site page
1 registered trials, 1 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 1 Cancer of Unknown Primary Site trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- TargetCancer Foundation sponsors the most Cancer of Unknown Primary Site trials on record, review their full trial history before evaluating a specific study. See TargetCancer Foundation's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Cancer of Unknown Primary Site condition card totals 1 registered trials; most-linked intervention FoundationOne CDx and FoundationOne Liquid CDx; top US site state Massachusetts. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.