Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Cancer of the Breast: early-phase trial registry
10 of 16 indexed Cancer of the Breast trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #1,060 of 28,707 conditions by registered trial count.
16 US clinical trials · 10 currently recruiting · #1,060 of 28,707 conditions by registered trial count
Cancer of the Breast: 16 US clinical trials tracked, 10 recruiting.
Cancer of the Breast is the subject of 16 registered US clinical trials on ClinicalTrials.gov, 10 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 9 in Phase 1-2 (earlier-stage). The most active sponsor is Washington University School of Medicine, running 7 of these trials.
Enrollment posture brief
Registry condition cancer-of-the-breast
OPEN 10 | RECR 63% | LATE 0 | EARLY 9 | RANK #1060 | SPON 7
Volume-matched condition peers
Nearest open-share peer: Advanced Gastroesophageal Junction Adenocarcinoma (63% recruiting · 8 trials)
Cancer of the Breast lists 10 open slots (63% of 16 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 Cancer of the Breast 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.
-
Cancer of the Breast is recruiting above its size-band peers.
10 of 16 indexed trials (62.5%) 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.
-
One sponsor concentrates Cancer of the Breast research.
Washington University School of Medicine accounts for 7 of 16 trials (43.8%). 9 distinct sponsors appear on at least one study for this condition label.
-
Typical Cancer of the Breast enrolment sits around 100 participants.
Median target enrolment is 100 among the 16 trials that report a genuine target (sentinel values excluded). 8 of those (50%) plan for fewer than 100 participants.
-
Cancer of the Breast research is mostly interventional.
15 interventional and 1 observational studies make up this index (93.8% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
16 total, page 1 of 1
ChatGPT & Surgeon Synergy: Redefining Breast Reconstruction Consultations for Enhanced Patient Engagement and Satisfaction
Washington University School of Medicine
NCT06981208
A Synthetic Lethality-Focused Algorithm to Identify Therapeutic Options in Advanced Metastatic Breast Cancer (SYNTHESIS-Breast)
National Cancer Institute (NCI)
NCT07067138
Daance FOR Chemotherapy-induced Neuropathy
Ohio State University Comprehensive Cancer Center
NCT06749210
Phase II Protocol of Proton Therapy for Partial Breast Irradiation in Early Stage Breast Cancer
Proton Collaborative Group
NCT01766297
Breast Re-irradiation After Second Ipsilateral Lumpectomy
Youssef Zeidan
NCT06867484
COOL-IT-PRO: Cryoablation of Breast Cancer in Non-surgical Patients
Washington University School of Medicine
NCT05972343
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
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
Endocrine Treatment Alone for Elderly Patients With Estrogen Receptor Positive Operable Breast Cancer and Low Recurrence Score
Washington University School of Medicine
NCT02476786
A Study of BRIA-OTS Cellular Immunotherapy in Metastatic Recurrent Breast Cancer
BriaCell Therapeutics Corporation
NCT06471673
Axillary Reverse Mapping
University of Arkansas
NCT00572481
Proton Radiation for Stage II/III Breast Cancer
Proton Collaborative Group
NCT01758445
Evaluating and Comparing Two Surgical Methods for Treatment of Early Stage Breast Cancer
Emory University
NCT01271738
Comparing Letrozole Given Alone to Letrozole Given With Avastin in Post-Menopausal Women Breast Cancer
University of Alabama at Birmingham
NCT00530868
Ultrasound and Near Infrared Imaging for Predicting and Monitoring Neoadjuvant Treatment
Washington University School of Medicine
NCT02891681
Bright Light on Fatigue in Women Being Treated for Breast Cancer
Washington University School of Medicine
NCT02658708
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 2 |
| Phase 2 | 7 |
Top Sponsors
Named interventions
Most-linked intervention names on Cancer of the Breast records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Cancer of the Breast 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 Cancer of the Breast page
16 registered trials, 10 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 10 Cancer of the Breast trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Washington University School of Medicine sponsors the most Cancer of the Breast trials on record, review their full trial history before evaluating a specific study. See Washington University School of Medicine'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 Cancer of the Breast condition card totals 16 registered trials; most-linked intervention Proton Radiotherapy; top US site state Missouri. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.