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Breast Neoplasm: early-phase trial registry
9 of 27 indexed Breast Neoplasm trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #598 of 28,707 conditions by registered trial count.
27 US clinical trials · 9 currently recruiting · #598 of 28,707 conditions by registered trial count
Breast Neoplasm: 27 US clinical trials tracked, 9 recruiting.
Breast Neoplasm is the subject of 27 registered US clinical trials on ClinicalTrials.gov, 9 of them currently open to new participants. 2 are in Phase 3-4 (later-stage) and 13 in Phase 1-2 (earlier-stage). The most active sponsor is Mayo Clinic, running 3 of these trials.
Enrollment posture brief
Registry condition breast-neoplasm
OPEN 9 | RECR 33% | LATE 2 | EARLY 13 | RANK #598 | SPON 3
Volume-matched condition peers
Nearest open-share peer: Adherence, Treatment (33% recruiting · 6 trials)
Breast Neoplasm lists 9 open slots (33% of 27 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 Neoplasm 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 Neoplasm is recruiting below its size-band peers.
9 of 27 indexed trials (33.3%) are open to enrollment, against a 39.7% average across 762 conditions with 20-99 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
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Sponsorship of Breast Neoplasm trials is spread across many organizations.
Mayo Clinic accounts for 3 of 27 trials (11.1%). 19 distinct sponsors appear on at least one study for this condition label.
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Typical Breast Neoplasm enrolment sits around 107 participants.
Median target enrolment is 107 among the 27 trials that report a genuine target (sentinel values excluded). 13 of those (48.1%) plan for fewer than 100 participants.
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Breast Neoplasm research is mostly interventional.
23 interventional and 4 observational studies make up this index (85.2% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
27 total, page 1 of 1
Quantitative Microvasculature Imaging for Breast Cancer Detection and Monitoring
Mayo Clinic
NCT04799535
Study of the Bria-IMT Regimen and CPI vs Physicians' Choice in Advanced Metastatic Breast Cancer.
BriaCell Therapeutics Corporation
NCT06072612
Correlation of Clinical Response to Pathologic Response in Patients With Early Breast Cancer
Baylor Breast Care Center
NCT05020860
Improved Successful Retrieval Rate of HydroMARK Plus Breast Biopsy Site Marker in Comparison to HydroMARK as Well as Improved Surgeon Satisfaction
University of Alabama at Birmingham
NCT06294574
Phase II Protocol of Proton Therapy for Partial Breast Irradiation in Early Stage Breast Cancer
Proton Collaborative Group
NCT01766297
Cryoablation vs Lumpectomy in T1 Breast Cancers
Washington University School of Medicine
NCT05505643
Molecular Breast Imaging Guidance for Breast Biopsy for Patients With Breast Abnormalities
Mayo Clinic
NCT06058650
A Study of Oral MBQ-167 in Participants With Advanced Breast Cancer
MBQ Pharma
NCT06075810
Surviving Daily Life
Thomas Jefferson University
NCT07054723
Abemaciclib (LY2835219) Plus Fulvestrant Compared to Placebo Plus Fulvestrant in Previously Treated Breast Cancer
Eli Lilly and Company
NCT05169567
Proton Radiation for Stage II/III Breast Cancer
Proton Collaborative Group
NCT01758445
Decision Aid Website in Helping to Make Decisions About Fertility in Participants With Cancer
M.D. Anderson Cancer Center
NCT03141437
CAR-macrophages for the Treatment of HER2 Overexpressing Solid Tumors
Carisma Therapeutics
NCT04660929
A Study of Ado-trastuzumab Emtansine (T-DM1)-Induced Peripheral Neuropathy in HER2-positive Breast Cancer Patients
Mayo Clinic
NCT05889988
[18F]ISO-1 Positron Emission Tomography (PET/CT) in Primary Breast Cancer
University of Pennsylvania
NCT02284919
[18F]FLT PET/CT in Rb+ Metastatic Breast Cancer
University of Pennsylvania
NCT02608216
Assessing Effectiveness and Implementation of an EHR Tool to Assess Heart Health Among Survivors
Wake Forest University Health Sciences
NCT03935282
Study of Web-based Decision Aids for Increasing Breast Cancer Chemoprevention in the Primary Care Setting
Columbia University
NCT03069742
Everolimus and Letrozole as Preoperative Therapy of Primary Breast Cancer in Post-menopausal Women
Novartis Pharmaceuticals
NCT00107016
Post-treatment Care of Breast Cancer Survivors
Columbia University
NCT00821288
Chemotherapy and Progenitor Cell Transplantation to Treat Inflammatory Breast Cancer
National Cancer Institute (NCI)
NCT00001507
Comparing Letrozole Given Alone to Letrozole Given With Avastin in Post-Menopausal Women Breast Cancer
University of Alabama at Birmingham
NCT00530868
Evaluation of a New Agent for Treatment of Advanced Stage Breast Cancer
Bayer
NCT00313248
Autologous T-Cell Transplantation and the Immunotherapy of Residual Disease in Breast Cancer: Pilot Study of Vaccine-Driven T-Cell Expansion in Patients Treated With Dose-Intensive Chemotherapy
National Cancer Institute (NCI)
NCT00001440
Establishment of Normal Breast Epithelial Cell Lines From Patients at High Risk for Breast Cancer
National Cancer Institute (NCI)
NCT00001496
Feasibility of Providing a Purpose Renewal Intervention for Cancer Survivors Via Virtual Groups
Mary Radomski
NCT04767464
Safety and Tolerability Study of TAK-165 in Subjects With Tumors Expressing HER2
Takeda
NCT00034281
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 7 |
| Phase 2 | 6 |
| Phase 3 | 2 |
Top Sponsors
Named interventions
Most-linked intervention names on Breast Neoplasm records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Breast Neoplasm 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 Neoplasm page
27 registered trials, 9 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 9 Breast Neoplasm trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Mayo Clinic sponsors the most Breast Neoplasm trials on record, review their full trial history before evaluating a specific study. See Mayo Clinic'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 Neoplasm condition card totals 27 registered trials; most-linked intervention Proton Radiotherapy; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.