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ClinicalTrials.gov 63 recruiting now early-phase tilt #120 of 28,707 conditions

Breast Carcinoma: early-phase trial registry

63 of 107 indexed Breast Carcinoma trials are currently recruiting, with more weight in Phase 1-2.

Corpus placement: #120 of 28,707 conditions by registered trial count.

107 US clinical trials · 63 currently recruiting · #120 of 28,707 conditions by registered trial count

Breast Carcinoma: 107 US clinical trials tracked, 63 recruiting.

Breast Carcinoma is the subject of 107 registered US clinical trials on ClinicalTrials.gov, 63 of them currently open to new participants. 5 are in Phase 3-4 (later-stage) and 33 in Phase 1-2 (earlier-stage). The most active sponsor is Mayo Clinic, running 21 of these trials.

Enrollment posture brief

Registry condition breast-carcinoma

OPEN 63 | RECR 59% | LATE 5 | EARLY 33 | RANK #120 | SPON 21

Nearest open-share peer: Alcohol Use Disorder (59% recruiting · 185 trials)

Breast Carcinoma (this)59%Non-Hodgkin Lymphoma54.2%Cognitive Impairment43.4%Crohn's Disease34.9%Hepatitis C12%
Open-enrollment share among volume-matched conditions near Breast Carcinoma

Breast Carcinoma lists 63 open slots (59% of 107 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 Carcinoma 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. Breast Carcinoma is recruiting above its size-band peers.

    63 of 107 indexed trials (58.9%) are open to enrollment, against a 37.1% average across 139 conditions with 100+ trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. One sponsor concentrates Breast Carcinoma research.

    Mayo Clinic accounts for 21 of 107 trials (19.6%). 30 distinct sponsors appear on at least one study for this condition label.

  3. Typical Breast Carcinoma enrolment sits around 126 participants.

    Median target enrolment is 126 among the 107 trials that report a genuine target (sentinel values excluded). 45 of those (42.1%) plan for fewer than 100 participants.

  4. Breast Carcinoma research is mostly interventional.

    77 interventional and 30 observational studies make up this index (72% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 115Phase 218Phase 35

Open and recent trials

107 total, page 1 of 3

RECRUITING NA 24,000 participants

The Vanguard Study: Testing a New Way to Screen for Cancer

National Cancer Institute (NCI)

NCT06995898

RECRUITING 10,000 participants

Mammography, Early Detection Biomarkers, Risk Assessment, and Imaging Technologies, MERIT Study

M.D. Anderson Cancer Center

NCT03408353

RECRUITING 5,000 participants

Data Collection for the Assessment of Acute and Late Normal Tissue in Patients Treated With Proton Therapy

M.D. Anderson Cancer Center

NCT00991094

RECRUITING 4,500 participants

Integrating Molecular Pathology, Radiology, and Genetics to Improve Breast Cancer Risk

Mayo Clinic

NCT07207564

RECRUITING NA 2,067 participants

The Ohio State University (OSU) SCREEN Community Program

Ohio State University Comprehensive Cancer Center

NCT06666192

RECRUITING 2,000 participants

Assessing Benefits and Harms of Cannabis/Cannabinoid Use Among Cancer Patients Treated in Community Oncology Clinics

Wake Forest University Health Sciences

NCT06418204

RECRUITING 2,000 participants

Collection of Specimens and Clinical Data for Patients With Recurrent or Metastatic Breast Cancer or Male Breast Cancer

Mayo Clinic

NCT06217874

RECRUITING NA 1,800 participants

Cancer Genetic Testing in Ethnic Populations

Mayo Clinic

NCT04475640

RECRUITING 960 participants

Impact of Dietary Inflammatory Potential on Breast Cancer Risk

Ohio State University Comprehensive Cancer Center

NCT05178498

RECRUITING NA 800 participants

Access to Genetic Testing in Underserved Patients With Cancer

University of Southern California

NCT06422455

RECRUITING NA 800 participants

Utilizing Advocates and Supporters to Increase Lung Cancer Screening Rates in Eligible Participants

Jonsson Comprehensive Cancer Center

NCT05978128

RECRUITING 750 participants

Comparison of Synthetic Mammography Versus Full-Field Digital Mammography in Image Interpretation and Performance Metrics

M.D. Anderson Cancer Center

NCT05056818

RECRUITING 575 participants

Whole Exome Sequencing in Finding Causative Variants in Germline DNA Samples From Patients With Peripheral Neuropathy Receiving Paclitaxel for Breast Cancer

National Cancer Institute (NCI)

NCT02610439

RECRUITING 550 participants

Quantitative Microvasculature Imaging for Breast Cancer Detection and Monitoring

Mayo Clinic

NCT04799535

RECRUITING 490 participants

A Validation Study to Determine Concordance of Liquid Biopsy and Breast Cancer Diagnosis

University of Southern California

NCT06336928

RECRUITING NA 410 participants

Functional Near-Infrared Spectroscopy and Virtual Reality Relaxation Programs for Pain Management in Patients With Cancer

Roswell Park Cancer Institute

NCT06456411

RECRUITING NA 410 participants

Mobile Health for Adherence in Breast Cancer Patients

ECOG-ACRIN Cancer Research Group

NCT06112613

RECRUITING NA 400 participants

Photoacoustic Imaging of the Breast in Patients With Breast Cancer and Healthy Subjects

Roswell Park Cancer Institute

NCT03897270

RECRUITING Phase 2 400 participants

EMBRACE: Exercising Together

OHSU Knight Cancer Institute

NCT06049355

RECRUITING 354 participants

Whole Exome Sequencing in Finding Causative Variants in Germline DNA Samples From Patients With Hypertension Receiving Bevacizumab for Breast Cancer

National Cancer Institute (NCI)

NCT02610413

RECRUITING Phase 1 300 participants

Serial Imaging of the Novel Radiotracer [^18F] FLuorthanatrace ([^18F] FTT) by PET/CTF

M.D. Anderson Cancer Center

NCT03604315

RECRUITING 290 participants

Neutrophil Extracellular Traps Formation in Breast Cancer Patients Taking Tamoxifen

M.D. Anderson Cancer Center

NCT05056857

RECRUITING Phase 3 285 participants

A Study of a Comprehensive Prevention Program to Reduce Lymphedema After Axillary Lymph Node Dissection in People With Breast Cancer

Memorial Sloan Kettering Cancer Center

NCT06144164

RECRUITING NA 244 participants

Comparing Single vs Multiple Dose Radiation for Cancer Patients With Brain Metastasis and Receiving Immunotherapy

Wake Forest University Health Sciences

NCT05703269

RECRUITING Phase 2 200 participants

Finding the Best Tamoxifen Dose for Breast Cancer Risk Reduction in Premenopausal Women, RENAISSANCE Trial

National Cancer Institute (NCI)

NCT06184750

RECRUITING 200 participants

TRPC6 Characterization to Predict and Prevent Chemotherapy Related Cardiomyopathy and Heart Failure With Breast Cancer

Mayo Clinic

NCT05507879

RECRUITING NA 200 participants

Virtual Support Platform (HERCaRE Application) for the Improvement of Survivorship Among Black Breast Cancer Survivors

Mayo Clinic

NCT07126522

RECRUITING NA 175 participants

A Synthetic Lethality-Focused Algorithm to Identify Therapeutic Options in Advanced Metastatic Breast Cancer (SYNTHESIS-Breast)

National Cancer Institute (NCI)

NCT07067138

RECRUITING 170 participants

Endocrine Therapy-Induced Alopecia in Postmenopausal and Premenopausal Female Breast Cancer Patients

Mayo Clinic

NCT05612100

RECRUITING 162 participants

Whole Exome Sequencing in Finding Causative Variants in Germline DNA Samples From Patients With Congestive Heart Failure Receiving Therapy for Breast Cancer

National Cancer Institute (NCI)

NCT02610426

RECRUITING 150 participants

Breast Cancer Screening Adherence for Women at Moderate Risk for Breast Cancer

University of Southern California

NCT07076147

RECRUITING 150 participants

Postoperative Outcomes and Patient Satisfaction With Mayo Clinic Florida Care Hotel After Mastectomy and Tissue Expander Placement

Mayo Clinic

NCT06783179

RECRUITING Phase 2 140 participants

Study of Aerobic Training for People Receiving Chemotherapy for Breast Cancer

Memorial Sloan Kettering Cancer Center

NCT05716893

RECRUITING NA 130 participants

Home-based Respiratory Muscle Training for Minimizing Side Effects in Patients Undergoing Treatment for Breast Cancer

Roswell Park Cancer Institute

NCT05787834

RECRUITING NA 126 participants

A Patient Navigation Program for Addressing Disparities in Breast Cancer Care

Roswell Park Cancer Institute

NCT06350500

RECRUITING NA 125 participants

A Post-treatment Supportive Service Program for the Transition Into Survivorship for Black Women Breast Cancer Survivors in Western New York

Roswell Park Cancer Institute

NCT06833255

RECRUITING Phase 2 120 participants

Hypofractionated Radiotherapy Before or After Breast Surgery for Treatment of Patients With Non-Metastatic Breast Cancer

Mayo Clinic

NCT06635980

RECRUITING Phase 2 120 participants

Phytocannabinoids for Reducing Chronic Chemotherapy-Induced Peripheral Neuropathy in Breast and Colon Cancer Survivors

City of Hope Medical Center

NCT06731894

RECRUITING Phase 1 100 participants

Contrast Enhanced Ultrasound Medical Imaging for Identifying Breast Masses

University of Southern California

NCT06171607

RECRUITING Phase 2 100 participants

Low Dose Aspirin for the Prevention of Postpartum Related Breast Cancer

Mayo Clinic

NCT05557877

RECRUITING NA 100 participants

An Imaging Technology, Contrast-Enhanced Mammography, in Predicting Breast Cancer

M.D. Anderson Cancer Center

NCT04871139

RECRUITING 100 participants

The Sleep After Breast Cancer (ABC) Study - Examining Sleep Changes and Biomarkers Among Breast Cancer Patients

Ohio State University Comprehensive Cancer Center

NCT07341503

RECRUITING Phase 2 82 participants

Ultra-hypofractionated Whole Breast Irradiation With Lumpectomy Cavity Boost for the Treatment of Stage I-III Breast Cancer

City of Hope Medical Center

NCT06954831

RECRUITING NA 80 participants

A Self-Monitoring Platform for Tracking Medication Safety and Concerns in Cancer Patients

University of Michigan Rogel Cancer Center

NCT07291414

RECRUITING Phase 2 80 participants

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

RECRUITING NA 75 participants

A Patient Navigation Intervention for the Improvement of Risk Management Among Women at High Risk of Breast Cancer

Ohio State University Comprehensive Cancer Center

NCT06950008

RECRUITING Phase 2 66 participants

Low Dose Tamoxifen With or Without Omega-3 Fatty Acids for Breast Cancer Risk Reduction

National Cancer Institute (NCI)

NCT06195306

RECRUITING NA 66 participants

Contrast Enhanced Spectral Mammography for the Evaluation of Pathologic Nipple Discharge

M.D. Anderson Cancer Center

NCT05056844

RECRUITING Early Phase 1 55 participants

3D Ultrasound for the Imaging of Lymph Nodes in Patients With Breast Cancer

Mayo Clinic

NCT05704283

RECRUITING NA 50 participants

A 3D-Printed External Breast Prosthesis for the Improvement of Patient-reported Outcomes Among Breast Cancer Patients That Underwent a Mastectomy Without Reconstruction

Mayo Clinic

NCT07047872

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Phase Distribution

PhaseTrial count
Phase 1 15
Phase 2 18
Phase 3 5

Named interventions

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

Questionnaire Administration Other
29 trials
Biospecimen Collection Procedure
19 trials
Survey Administration Other
12 trials
Non-Interventional Study Other
10 trials
Electronic Health Record Review Other
9 trials
Educational Intervention Other
9 trials
Laboratory Biomarker Analysis Other
8 trials
Interview Other
7 trials

US sites by state

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

California 27 trials
Texas 22 trials
New York 15 trials
Florida 15 trials
Arizona 14 trials
Ohio 13 trials
Minnesota 13 trials
Michigan 9 trials

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

What to do with this Breast Carcinoma page

107 registered trials, 63 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

  • 63 Breast Carcinoma trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
  • Mayo Clinic sponsors the most Breast Carcinoma 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 Carcinoma condition card totals 107 registered trials; most-linked intervention Questionnaire Administration; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.