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

Male Breast Cancer: early-phase trial registry

1 of 15 indexed Male Breast Cancer trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #1,140 of 28,707 conditions by registered trial count.

15 US clinical trials · 1 currently recruiting · #1,140 of 28,707 conditions by registered trial count

Male Breast Cancer: 15 US clinical trials tracked, 1 recruiting.

Male Breast Cancer is the subject of 15 registered US clinical trials on ClinicalTrials.gov, 1 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 13 in Phase 1-2 (earlier-stage). The most active sponsor is University of Washington, running 5 of these trials.

Enrollment posture brief

Registry condition male-breast-cancer

OPEN 1 | RECR 7% | LATE 0 | EARLY 13 | RANK #1140 | SPON 5

Nearest open-share peer: Liver Disease (7% recruiting · 15 trials)

Advanced Lung Non-Small Cell53.3%AIDS26.7%Male Breast Cancer (this)7%Adult Acute Myeloid Leukemia0%Adult Glioblastoma0%
Open-enrollment share among volume-matched conditions near Male Breast Cancer

Male Breast Cancer lists 1 open slots (7% of 15 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 Male Breast Cancer 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. Male Breast Cancer is recruiting below its size-band peers.

    1 of 15 indexed trials (6.7%) 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.

  2. One sponsor concentrates Male Breast Cancer research.

    University of Washington accounts for 5 of 15 trials (33.3%). 6 distinct sponsors appear on at least one study for this condition label.

  3. Most Male Breast Cancer trials plan to enrol fewer than 100 people.

    Median target enrolment is 30 among the 15 trials that report a genuine target (sentinel values excluded). 15 of those (100%) plan for fewer than 100 participants.

  4. Male Breast Cancer research is mostly interventional.

    14 interventional and 1 observational studies make up this index (93.3% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 19Phase 24

Open and recent trials

15 total, page 1 of 1

RECRUITING Phase 2 60 participants

ETHAN - ET for Male BC

Jose Pablo Leone

NCT05501704

COMPLETED Phase 2 68 participants

Sunitinib Malate, Paclitaxel, Doxorubicin Hydrochloride, and Cyclophosphamide Before Surgery in Treating Patients With Stage IIB-IIIC Breast Cancer

University of Washington

NCT00513695

COMPLETED Phase 1 60 participants

Tipifarnib and Combination Chemotherapy in Treating Patients With Stage II or Stage III Breast Cancer

National Cancer Institute (NCI)

NCT00470301

COMPLETED Phase 2 57 participants

Omega-3 Fatty Acid in Treating Patients With Stage I-III Breast Cancer

Wake Forest University Health Sciences

NCT01869764

COMPLETED Phase 1 48 participants

Vaccine Therapy With or Without Sargramostim in Treating Patients With Advanced or Metastatic Cancer

National Cancer Institute (NCI)

NCT00028496

COMPLETED Phase 2 37 participants

Trastuzumab and Interleukin-2 in Treating Patients With Metastatic Breast Cancer

National Cancer Institute (NCI)

NCT00006228

COMPLETED Phase 1 31 participants

Carboplatin, Gemcitabine Hydrochloride, and Mifepristone in Treating Patients With Advanced Breast Cancer or Recurrent or Persistent Ovarian Epithelial, Fallopian Tube, or Primary Peritoneal Cancer

University of Chicago

NCT02046421

COMPLETED Phase 1 30 participants

Doxorubicin Hydrochloride Liposome, Cyclophosphamide, and Trastuzumab in Treating Patients With Stage IV Breast Cancer

University of Washington

NCT00331552

COMPLETED Phase 1 25 participants

18F-FPPRGD2 PET/CT or PET/MRI in Predicting Early Response in Patients With Cancer Receiving Anti-Angiogenesis Therapy

Sanjiv Sam Gambhir

NCT01806675

COMPLETED Phase 1 24 participants

Decitabine in Treating Patients With Advanced Solid Tumors

National Cancer Institute (NCI)

NCT00030615

COMPLETED Phase 1 23 participants

Vaccine Therapy in Treating Patients With Stage IV Breast Cancer

University of Washington

NCT00791037

COMPLETED Phase 1 18 participants

Interleukin-12, Paclitaxel, and Trastuzumab in Treating Patients With Solid Tumors

National Cancer Institute (NCI)

NCT00028535

COMPLETED Phase 1 15 participants

ONTAK® in Treating Patients With Advanced Breast Cancer That Did Not Respond to Previous Treatment

University of Washington

NCT00425672

COMPLETED NA 8 participants

Vorinostat in Treating Patients With Stage IV Breast Cancer Receiving Aromatase Inhibitor Therapy

University of Washington

NCT01153672

COMPLETED 4 participants

Hypofractionated Image Guided Radiation Therapy in Treating Patients With Stage IV Breast Cancer

University of Chicago

NCT01706432

Phase Distribution

PhaseTrial count
Phase 1 9
Phase 2 4

Named interventions

Most-linked intervention names on Male Breast Cancer records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

laboratory biomarker analysis Other
7 trials
cyclophosphamide Drug
4 trials
trastuzumab Biological
3 trials
pharmacological study Other
3 trials
paclitaxel Drug
3 trials
sargramostim Biological
2 trials
F-18 16 alpha-fluoroestradiol Radiation
1 trials
recombinant fowlpox-CEA(6D)/TRICOM vaccine Biological
1 trials

US sites by state

Facility locations filed on Male Breast Cancer trials. A trial with sites in several states counts in each.

Washington 5 trials
Texas 2 trials
Pennsylvania 2 trials
Ohio 2 trials
North Carolina 2 trials
Illinois 2 trials
California 2 trials
Tennessee 1 trials

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

What to do with this Male Breast Cancer page

15 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 Male Breast Cancer condition card totals 15 registered trials; most-linked intervention laboratory biomarker analysis; top US site state Washington. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.