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ClinicalTrials.gov 1 recruiting now official registry

Male Breast Cancer clinical trials

Every US clinical trial registered for Male Breast Cancer — phase mix, recruiting status, and the sponsors running them, straight from the NIH ClinicalTrials.gov registry.

15 US clinical trials · 1 currently recruiting

The research picture

Male Breast Cancer has 15 registered US clinical trials, 1 of them open to new participants right now — about 7% of the total.

1
recruiting participants now
7%
of trials open to enrollment
0
in Phase 3–4 (later-stage)
5
top sponsor: University of Washington

Counts reflect the public ClinicalTrials.gov registry as last mirrored by PlainTrial. Status and phase are reported by each study's sponsor. This is reference information, not medical advice.

Active & Recent Trials

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

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

Reading the Male Breast Cancer Trial Landscape

ClinicalTrials.gov lists 15 US studies indexed under Male Breast Cancer, and 1 of those are currently open to recruitment — roughly 7% of the total volume on the registry. That ratio is a useful proxy for activity level: a high share of recruiting studies often signals that research interest is current and that new enrollment opportunities are appearing, while a low share typically means the field is dominated by completed or follow-up work where most participant spots have already been filled. These counts reflect the public registry only and include studies at every stage of design, so they should be read as an index of research attention rather than as a measure of treatment availability.

The phase distribution for Male Breast Cancer shows 0 late-stage studies (Phase 3 and Phase 4 combined) alongside 13 earlier-phase entries (Phase 1 through Phase 2). Phase 1 and Phase 2 studies focus on early safety signals, dosing, and preliminary effect, while Phase 3 studies are typically the larger efficacy and safety trials submitted toward regulatory review, and Phase 4 studies follow approved interventions in real-world use. A condition weighted toward later phases often reflects a mature research pipeline with several interventions already close to or past approval, whereas a heavier early-phase tilt suggests the field is still exploring new mechanisms and candidate approaches.

Top sponsor activity for Male Breast Cancer is led by University of Washington with 5 indexed trials, alongside 5 other organizations in the top contributor list. The list on this page surfaces up to 15 of the most relevant recent and active entries, ordered with recruiting studies first so practical options are visible. All figures are derived from the public ClinicalTrials.gov dataset maintained by the National Library of Medicine and are reproduced here for reference. Inclusion of a trial, sponsor, or intervention on this page is neither an endorsement nor a recommendation — eligibility, protocol changes, and site-level status can shift frequently, so always verify current details on ClinicalTrials.gov and consult a qualified healthcare provider before acting on anything you see here.

Frequently Asked Questions

How many clinical trials are there for Male Breast Cancer?

PlainTrial tracks 15 US clinical trials for Male Breast Cancer, of which 1 are currently recruiting participants. Data sourced from ClinicalTrials.gov.

How do I find a recruiting trial for Male Breast Cancer?

Use the trial list above filtered by "Recruiting" status, or visit our trial finder at /recruiting to search by condition and state. Always discuss trial participation with your healthcare provider before enrolling.

Is this data current?

Data is sourced from ClinicalTrials.gov and reflects our most recent data pull. Trial status may have changed since then. Always verify current information at ClinicalTrials.gov before making decisions about participation.

Related

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from ClinicalTrials.gov (National Library of Medicine). Consult a qualified professional before making decisions based on this data.

Source: ClinicalTrials.gov (NIH/NLM) ClinicalTrials.gov AACT registry · 2026 Trial counts and statuses sourced from ClinicalTrials.gov. Sponsor counts include both industry and federal/academic sponsors.

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