- Conditions
- Breast Cancer, Breast Neoplasm, Breast Tumor, Cancer of the Breast
- Interventions
- Proton Radiotherapy
- Radiation
- Lead sponsor
- Proton Collaborative Group
- Network
- Eligibility
- 50 Years and older · Female only
- Enrollment
- 132 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2035
- U.S. locations
- 9
- States / cities
- Scottsdale, Arizona • San Diego, California • Warrenville, Illinois + 6 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 November 2, 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
7078
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 445–456 of 7,078 matching trials for Breast Cancer.
Live ClinicalTrials.gov results.
Live official records
Open in full search- Conditions
- Breast Cancer, Breast Neoplasm, Breast Tumor, Cancer of the Breast
- Interventions
- Proton Radiotherapy
- Radiation
- Lead sponsor
- Proton Collaborative Group
- Network
- Eligibility
- 18 Years and older
- Enrollment
- 220 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2032
- U.S. locations
- 5
- States / cities
- Warrenville, Illinois • Baltimore, Maryland • Somerset, New Jersey + 2 more
- Conditions
- Colorectal Cancer, Non-Small Cell Lung Cancer, Breast Cancer, Esophageal Cancer, Stomach Cancer, Cancer
- Interventions
- IM-1617
- Drug
- Lead sponsor
- Immunome, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 175 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2029
- U.S. locations
- 4
- States / cities
- New Haven, Connecticut • Sarasota, Florida • Boston, Massachusetts + 1 more
- Conditions
- Advanced Breast Cancer
- Interventions
- Camizestrant, Atirmociclib
- Drug
- Lead sponsor
- AstraZeneca
- Industry
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2027
- U.S. locations
- 3
- States / cities
- St Louis, Missouri • East Providence, Rhode Island • Nashville, Tennessee
- Conditions
- HER2 Positive Breast Cancer
- Interventions
- Tucatinib, Trastuzumab, Pertuzumab, Combination product: Trastuzumab + Pertuzumab, Placebo
- Drug
- Lead sponsor
- Seagen, a wholly owned subsidiary of Pfizer
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 654 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2027
- U.S. locations
- 76
- States / cities
- Phoenix, Arizona • Scottsdale, Arizona • Little Rock, Arkansas + 45 more
- Conditions
- Breast Cancer
- Interventions
- Proton Therapy
- Radiation
- Lead sponsor
- Proton Collaborative Group
- Network
- Eligibility
- 19 Years and older · Female only
- Enrollment
- 276 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2041
- U.S. locations
- 9
- States / cities
- Scottsdale, Arizona • San Diego, California • Jacksonville, Florida + 5 more
- Conditions
- Non-small Cell Lung Cancer, Head and Neck Squamous Cell Carcinoma, Colorectal Carcinoma, Pancreatic Adenocarcinoma, Breast Cancer, Other Solid Tumors, Ovarian Cancer, Myeloid Neoplasms (AML/MDS)
- Interventions
- NT-175
- Biological
- Lead sponsor
- AstraZeneca
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 45 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2029
- U.S. locations
- 20
- States / cities
- Gilbert, Arizona • Duarte, California • Los Angeles, California + 16 more
- Conditions
- Breast Cancer, Breast Neoplasms
- Interventions
- Baseline Questionnaire, Semi structured Interview, Post Survey
- Behavioral
- Lead sponsor
- UNC Lineberger Comprehensive Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Chapel Hill, North Carolina
- Conditions
- Breast Cancer
- Interventions
- Vepdegestrant, Palbociclib
- Drug
- Lead sponsor
- Arvinas Estrogen Receptor, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 219 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2026
- U.S. locations
- 16
- States / cities
- Palo Alto, California • San Francisco, California • Santa Monica, California + 12 more
- Conditions
- Brain Metastases
- Interventions
- Whole brain radiation, Stereotactic radiation (SRS)
- Radiation
- Lead sponsor
- Brigham and Women's Hospital
- Other
- Eligibility
- 18 Years to 80 Years
- Enrollment
- 196 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2027
- U.S. locations
- 2
- States / cities
- Boston, Massachusetts
- Conditions
- Advanced Cancer, Advanced Malignancies, Bladder Cancer, Cervical Cancer, Esophageal Cancer, Gastric Cancer, Gastroesophageal-junction Cancer (GEJ), Head and Neck Squamous Cell Carcinoma (HNSCC), Non-Small Cell Lung Cancer (NSCLC), Ovarian Cancer, Renal Cell Carcinoma (RCC), Triple Negative Breast Cancer (TNBC)
- Interventions
- AB598, Zimberelimab, Fluorouracil, Leucovorin, Oxaliplatin
- Drug
- Lead sponsor
- Arcus Biosciences, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 40 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2027
- U.S. locations
- 11
- States / cities
- Phoenix, Arizona • Jacksonville, Florida • Lake City, Florida + 8 more
- Conditions
- Breast Cancer
- Interventions
- Blood draw for the laboratory assessment
- Procedure
- Lead sponsor
- Duke University
- Other
- Eligibility
- 18 Years to 50 Years · Female only
- Enrollment
- 125 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2029
- U.S. locations
- 1
- States / cities
- Durham, North Carolina
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.