Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Breast Atypical Hyperplasia: early-phase trial registry
2 of 2 indexed Breast Atypical Hyperplasia 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 · 2 currently recruiting · #7,188 of 28,707 conditions by registered trial count
Breast Atypical Hyperplasia: 2 US clinical trials tracked, 2 recruiting.
Breast Atypical Hyperplasia is the subject of 2 registered US clinical trials on ClinicalTrials.gov, 2 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 National Cancer Institute (NCI), running 2 of these trials.
Enrollment posture brief
Registry condition breast-atypical-hyperplasia
OPEN 2 | RECR 100% | LATE 0 | EARLY 2 | RANK #7188 | SPON 2
Volume-matched condition peers
Nearest open-share peer: Aortic Arch Aneurysm (100% recruiting · 5 trials)
Breast Atypical Hyperplasia lists 2 open slots (100% 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 Breast Atypical Hyperplasia 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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Breast Atypical Hyperplasia is recruiting above its size-band peers.
2 of 2 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
2 total, page 1 of 1
Acolbifene Versus Low Dose Tamoxifen for the Prevention of Breast Cancer in Premenopausal Women at High Risk for Development of Breast Cancer
National Cancer Institute (NCI)
NCT05941520
Low Dose Tamoxifen With or Without Omega-3 Fatty Acids for Breast Cancer Risk Reduction
National Cancer Institute (NCI)
NCT06195306
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 2 | 2 |
Top Sponsors
Named interventions
Most-linked intervention names on Breast Atypical Hyperplasia records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Breast Atypical Hyperplasia 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 Breast Atypical Hyperplasia page
2 registered trials, 2 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 2 Breast Atypical Hyperplasia trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- National Cancer Institute (NCI) sponsors the most Breast Atypical Hyperplasia trials on record, review their full trial history before evaluating a specific study. See National Cancer Institute (NCI)'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 Breast Atypical Hyperplasia condition card totals 2 registered trials; most-linked intervention Random Periareolar Fine-Needle Aspiration; top US site state Ohio. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.