- Conditions
- Breast Cancer
- Interventions
- RGT-419B, RGT-419B in combination with hormonal therapy
- Drug
- Lead sponsor
- Regor Pharmaceuticals Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 64 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2027
- U.S. locations
- 8
- States / cities
- La Jolla, California • Los Angeles, California • Port Saint Lucie, Florida + 5 more
Condition Directory
Breast Cancer clinical trials
Directory of U.S. ClinicalTrials.gov public records for Breast Cancer. Browse Breast Cancer recruiting trials, filter by phase, sponsor, location, or intervention, and open the official ClinicalTrials.gov study record for each result.
By Clinical Trials Finder Guidance last reviewed June 10, 2026 Data synced October 15, 2026 Report an issue
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official matching trials
678
Shown on this page
12
Current sort
Recently updated
Condition scope
Breast Cancer
Additional filters apply within this condition.
These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.
How Breast Cancer studies are organized in the registry
Breast cancer listings are usually subtype-specific: receptor status appears directly in titles and condition fields, so subtype terms narrow results far better than stage words alone. Many studies also restrict to either early-stage or metastatic settings, which is visible in the title or eligibility section of the official record.
Terms that often appear in related listings
These describe how studies tend to be titled and grouped on ClinicalTrials.gov — they are search vocabulary, not medical guidance.
Showing 133–144 of 678 matching trials for Breast Cancer.
Live ClinicalTrials.gov results.
Live official records
Open in full search- Conditions
- Breast Cancer, Breast Cancer Stage IV, Metastatic Breast Cancer
- Interventions
- Ketogenic Diet, Low Carbohydrate Diet, Alpelisib, Fulvestrant, Canagliflozin
- Dietary Supplement · Drug
- Lead sponsor
- Memorial Sloan Kettering Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 15 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2027
- U.S. locations
- 9
- States / cities
- Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 5 more
- Conditions
- Anatomic Stage 0 Breast Cancer AJCC v8, Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Hormone Receptor-Positive Breast Carcinoma
- Interventions
- Biospecimen Collection, Bone Mineral Density Test, Questionnaire Administration, WBF-038
- Procedure · Other · Drug
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 38 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2027
- U.S. locations
- 1
- States / cities
- Jacksonville, Florida
- Conditions
- Breast Cancer, Breast Cancer - Female, Breast Carcinoma, ER Positive Breast Cancer, PR-Positive Breast Cancer
- Interventions
- SHIELD portal
- Behavioral
- Lead sponsor
- Dana-Farber Cancer Institute
- Other
- Eligibility
- 18 Years to 49 Years · Female only
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Breast Cancer
- Interventions
- Tamoxifen, Anastrozole, Fulvestrant
- Drug
- Lead sponsor
- Priscilla McAuliffe
- Other
- Eligibility
- Female only
- Enrollment
- 201 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2015 – 2024
- U.S. locations
- 12
- States / cities
- Birmingham, Alabama • San Francisco, California • Washington D.C., District of Columbia + 8 more
- Conditions
- Breast Cancer
- Interventions
- Endocrine Therapy and a CDK 4/6 inhibitor
- Drug
- Lead sponsor
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
- Other
- Eligibility
- 18 Years to 100 Years
- Enrollment
- 45 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2027
- U.S. locations
- 1
- States / cities
- Baltimore, Maryland
- Conditions
- Breast Cancer, Triple Negative Breast Cancer, Cardiovascular Complications
- Interventions
- Adenosine Stress Cardiac Magnetic Resonance Imaging, Electrocardiogram, Computed Tomography Angiogram, Laboratory Testing, Quality of Life Survey
- Drug · Diagnostic Test · Other + 1 more
- Lead sponsor
- Duke University
- Other
- Eligibility
- 18 Years to 55 Years · Female only
- Enrollment
- 90 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2028
- U.S. locations
- 3
- States / cities
- Durham, North Carolina • Winston-Salem, North Carolina • Richmond, Virginia
- Conditions
- Breast Cancer
- Interventions
- Intermittent Fasting
- Behavioral
- Lead sponsor
- Medical College of Wisconsin
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2027
- U.S. locations
- 1
- States / cities
- Milwaukee, Wisconsin
- Conditions
- Breast Neoplasms, Breast Diseases
- Interventions
- Anastrozole, Palbociclib, Trastuzumab, Pertuzumab
- Drug
- Lead sponsor
- Icahn School of Medicine at Mount Sinai
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 44 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2027
- U.S. locations
- 5
- States / cities
- New York, New York
- Conditions
- Metastatic HR+/HER2- Breast Cancer
- Interventions
- Capivasertib, Loperamide, Fulvestrant, Ceterizine
- Drug
- Lead sponsor
- Maryam Lustberg
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 108 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2026 – 2029
- U.S. locations
- 1
- States / cities
- New Haven, Connecticut
- Conditions
- Invasive Breast Cancer
- Interventions
- Cemiplimab, Paclitaxel, Carboplatin (not mandatory), Doxorubicin, Cyclophosphamide
- Drug
- Lead sponsor
- Medical College of Wisconsin
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 36 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2030
- U.S. locations
- 1
- States / cities
- Milwaukee, Wisconsin
- Conditions
- Breast Atypical Ductal Hyperplasia, Breast Atypical Lobular Hyperplasia, Breast Carcinoma, Breast Ductal Carcinoma In Situ, Breast Lobular Carcinoma In Situ, Estrogen Receptor-Positive Breast Carcinoma
- Interventions
- Biopsy Procedure, Biospecimen Collection, Mammography, Questionnaire Administration, Tamoxifen
- Procedure · Other · Drug
- Lead sponsor
- National Cancer Institute (NCI)
- NIH
- Eligibility
- 18 Years to 55 Years · Female only
- Enrollment
- 200 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2028
- U.S. locations
- 11
- States / cities
- Tucson, Arizona • Chicago, Illinois • Kansas City, Kansas + 6 more
About this Breast Cancer clinical trials directory page
- What this page lists
- U.S. ClinicalTrials.gov public records that list Breast Cancer as a study condition, including recruiting, not yet recruiting, and active not recruiting trials across phase 1, phase 2, and phase 3.
- How to narrow results
- Use the filters above to scope by intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, age, or NCT ID within Breast Cancer.
- Where the data comes from
- Records are sourced from the official ClinicalTrials.gov public API. Each result links back to the official study page, which is the source of truth for eligibility, enrollment, and contact information.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, ranking of trials by quality, or AI-generated medical summaries.
Related: all condition pages, browse by drug or therapy, browse by U.S. city, browse by sponsor, or open the full search for Breast Cancer.