Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.

ClinicalTrials.gov 1 recruiting now early-phase tilt small index

Head and Neck Cancer Stage IV: early-phase trial registry

1 of 2 indexed Head and Neck Cancer Stage IV trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #7,188 of 28,707 conditions by registered trial count.

2 US clinical trials · 1 currently recruiting · #7,188 of 28,707 conditions by registered trial count

Head and Neck Cancer Stage IV: 2 US clinical trials tracked, 1 recruiting.

Head and Neck Cancer Stage IV is the subject of 2 registered US clinical trials on ClinicalTrials.gov, 1 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 2 in Phase 1-2 (earlier-stage). The most active sponsor is University of California, San Diego, running 1 of these trials.

Enrollment posture brief

Registry condition head-and-neck-cancer-stage-iv

OPEN 1 | RECR 50% | LATE 0 | EARLY 2 | RANK #7188 | SPON 1

Nearest open-share peer: Abdominal Aortic Aneurysms (50% recruiting · 6 trials)

Ablation80%ACL Reconstruction80%Abuse, Drug60%Acceptability60%Head and Neck Cancer Sta (th…50%
Open-enrollment share among volume-matched conditions near Head and Neck Cancer Stage IV

Head and Neck Cancer Stage IV lists 1 open slots (50% of 2 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 Head and Neck Cancer Stage IV 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.

  1. Head and Neck Cancer Stage IV is recruiting above its size-band peers.

    1 of 2 indexed trials (50%) 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.

Phase 11Phase 21

Phase Distribution

PhaseTrial count
Phase 1 1
Phase 2 1

Named interventions

Most-linked intervention names on Head and Neck Cancer Stage IV records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Tadalafil Drug
1 trials
Tislelizumab Drug
1 trials
Fluorouracil (5FU) Drug
1 trials
Hydroxyurea Drug
1 trials
Pamiparib Drug
1 trials
Chemoradiation Radiation
1 trials
Pembrolizumab Drug
1 trials

US sites by state

Facility locations filed on Head and Neck Cancer Stage IV trials. A trial with sites in several states counts in each.

Illinois 1 trials
California 1 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Head and Neck Cancer Stage IV page

2 registered trials, 1 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

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 Head and Neck Cancer Stage IV condition card totals 2 registered trials; most-linked intervention Tadalafil; top US site state Illinois. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.