Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.

2026 data Public-data reference. official source

Cancer of the Breast

Open-data reference.

16 US clinical trials · 10 currently recruiting

Active & Recent Trials

RECRUITING NA 410 participants

ChatGPT & Surgeon Synergy: Redefining Breast Reconstruction Consultations for Enhanced Patient Engagement and Satisfaction

Washington University School of Medicine

NCT06981208

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 Phase 2 140 participants

DAANCE FOR CHEMOTHERAPY-INDUCED NEUROPATHY

Ohio State University Comprehensive Cancer Center

NCT06749210

RECRUITING Phase 2 132 participants

Phase II Protocol of Proton Therapy for Partial Breast Irradiation in Early Stage Breast Cancer

Proton Collaborative Group

NCT01766297

RECRUITING NA 114 participants

Breast Re-irradiation After Second Ipsilateral Lumpectomy

Youssef Zeidan

NCT06867484

RECRUITING 100 participants

COOL-IT-PRO: Cryoablation of Breast Cancer in Non-surgical Patients

Washington University School of Medicine

NCT05972343

RECRUITING Phase 2 81 participants

NeoTAILOR: ABiomarker-directed Approach to Guide Neoadjuvant Therapy for Patients With Stage II/III ER-positive, HER2-negative Breast Cancer

Washington University School of Medicine

NCT05837455

RECRUITING NA 55 participants

Treatment Monitoring of Patients Receiving CDK 4/6 Inhibitors for Hormone Receptor (HR) Positive, HER2 Negative Metastatic Breast Cancer (MBC) With or Without the Addition of DiviTum® Serum Thymidine Kinase 1 (TK1) Activity Testing

Washington University School of Medicine

NCT04968964

RECRUITING Phase 2 50 participants

Endocrine Treatment Alone for Elderly Patients With Estrogen Receptor Positive Operable Breast Cancer and Low Recurrence Score

Washington University School of Medicine

NCT02476786

RECRUITING Phase 1 18 participants

A Study of BRIA-OTS Cellular Immunotherapy in Metastatic Recurrent Breast Cancer

BriaCell Therapeutics Corporation

NCT06471673

ACTIVE NOT RECRUITING Phase 2 1,000 participants

Axillary Reverse Mapping

University of Arkansas

NCT00572481

ACTIVE NOT RECRUITING Phase 2 220 participants

Proton Radiation for Stage II/III Breast Cancer

Proton Collaborative Group

NCT01758445

COMPLETED NA 79 participants

Evaluating and Comparing Two Surgical Methods for Treatment of Early Stage Breast Cancer

Emory University

NCT01271738

COMPLETED Phase 2 75 participants

Comparing Letrozole Given Alone to Letrozole Given With Avastin in Post-Menopausal Women Breast Cancer

University of Alabama at Birmingham

NCT00530868

COMPLETED NA 41 participants

Ultrasound and Near Infrared Imaging for Predicting and Monitoring Neoadjuvant Treatment

Washington University School of Medicine

NCT02891681

COMPLETED Phase 1 19 participants

Bright Light on Fatigue in Women Being Treated for Breast Cancer

Washington University School of Medicine

NCT02658708

Phase Distribution

PhaseTrial count
Early Phase 1 2
Phase 2 7

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

Reading the Cancer of the Breast Trial Landscape

ClinicalTrials.gov lists 16 US studies indexed under Cancer of the Breast, and 10 of those are currently open to recruitment — roughly 63% 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 Cancer of the Breast shows 0 late-stage studies (Phase 3 and Phase 4 combined) alongside 9 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 Cancer of the Breast is led by Washington University School of Medicine with 7 indexed trials, alongside 8 other organizations in the top contributor list. The list on this page surfaces up to 16 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 Cancer of the Breast?

PlainTrial tracks 16 US clinical trials for Cancer of the Breast, of which 10 are currently recruiting participants. Data sourced from ClinicalTrials.gov.

How do I find a recruiting trial for Cancer of the Breast?

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

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainTrial Editorial

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 · 2024 Trial counts and statuses sourced from ClinicalTrials.gov. Sponsor counts include both industry and federal/academic sponsors.

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