- Conditions
- Breast Cancer
- Interventions
- Lumpectomy without sentinel node biopsy
- Procedure
- Lead sponsor
- Cedars-Sinai Medical Center
- Other
- Eligibility
- 65 Years and older · Female only
- Enrollment
- 200 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2029
- U.S. locations
- 1
- States / cities
- Los Angeles, California
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 16, 2026 Report an issue
All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.
The live registry is temporarily unavailable. These stored records may be incomplete or out of date. Check the official record for current status and contact information.
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.
These describe how studies tend to be titled and grouped on ClinicalTrials.gov — they are search vocabulary, not medical guidance.
Stored official records
Open in full search- Conditions
- Advanced Solid Tumors, Breast Cancer, Breast Carcinoma, Breast Diseases, Breast Neoplasms, Cervical Cancers, Cervical Carcinoma, Cervical Neoplasms, ER Positive Breast Cancer, Endometrial Cancer, Endometrial Carcinoma (EC), Endometrial Neoplasm, Fallopian Cancer, Genital Neoplasms, Female, Gynecologic Cancers, Gynecologic Neoplasm, Neoplasms, Neoplasms by Site, Ovarian Cancer, Ovarian Carcinoma, Ovarian Neoplasms, Prostate Cancers, Prostate Carcinoma, Solid Tumors, Triple Negative Breast Cancer, Urogenital Neoplasms, Uterine Neoplasms
- Interventions
- ATV-1601, ATV-1601 + Fulvestrant
- Drug · Combination Product
- Lead sponsor
- Atavistik Bio, Inc
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 134 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2029
- U.S. locations
- 5
- States / cities
- Los Angeles, California • Lake Mary, Florida • Boston, Massachusetts + 2 more
- Conditions
- Advanced Breast Cancer
- Interventions
- Elacestrant, MEN2312
- Drug
- Lead sponsor
- Stemline Therapeutics, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 240 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2029
- U.S. locations
- 37
- States / cities
- Springdale, Arkansas • Duarte, California • La Jolla, California + 30 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
- Acute Pain, Breast Cancer, Chronic Pain, Depression, Anxiety
- Interventions
- Mechanical Temporal Summation assessment, Pain threshold assessment, Questionnaires
- Other
- Lead sponsor
- KK Women's and Children's Hospital
- Government
- Eligibility
- 21 Years to 80 Years · Female only
- Enrollment
- 220 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2027
- U.S. locations
- 1
- States / cities
- Durham, North Carolina
- Conditions
- Breast Cancer, Carcinoma of the Breast, Metastatic Breast Cancer
- Interventions
- OpenEvidence CareConnect, Survey (Participant), Survey (Provider)
- Other
- Lead sponsor
- University of California, San Francisco
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 35 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- San Francisco, California
- Conditions
- Triple Negative Breast Cancer
- Interventions
- PET imaging
- Diagnostic Test
- Lead sponsor
- Ahmad Shariftabrizi
- Other
- Eligibility
- 18 Years to 90 Years · Female only
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2027
- U.S. locations
- 1
- States / cities
- Iowa City, Iowa
- Conditions
- Breast Cancer, Breast Cancer Female, Breast Cancer Metastatic, Estrogen Receptor-positive Breast Cancer, HER2-positive Breast Cancer, Stage IV Breast Cancer
- Interventions
- Docetaxel, Nab-Paclitaxel, Paclitaxel, Pertuzumab, Phesgo, T-DM1, Trastuzumab, Trastuzumab Deruxtecan, Trastuzumab Subcutaneous Subcutaneous, Tucatinib
- Drug
- Lead sponsor
- Dana-Farber Cancer Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 72 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2033
- U.S. locations
- 1
- States / cities
- Boston, Massachusetts
- Conditions
- Breast Cancer, Breast Cancer Female, ER Positive Breast Cancer, ER-negative Breast Cancer, HER2 Negative Breast Carcinoma, HER2-negative Breast Cancer, Metastatic Triple-Negative Breast Carcinoma
- Interventions
- Datopotamab Deruxtecan
- Drug
- Lead sponsor
- Nancy Lin, MD
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 58 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2024 – 2029
- U.S. locations
- 3
- States / cities
- Miami, Florida • Boston, Massachusetts • Durham, North Carolina
- Conditions
- Breast Cancer, Tumor, Breast
- Interventions
- Radiation Therapy
- Radiation
- Lead sponsor
- Case Comprehensive Cancer Center
- Other
- Eligibility
- 19 Years and older
- Enrollment
- 55 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2029
- U.S. locations
- 2
- States / cities
- Cleveland, Ohio
- Conditions
- Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8
- Interventions
- Best Practice, Internet-Based Intervention, Questionnaire Administration
- Other · Behavioral
- Lead sponsor
- Fred Hutchinson Cancer Center
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Seattle, Washington
- Conditions
- Breast Cancer, HER2-positive Breast Cancer, Metastatic Breast Cancer
- Interventions
- Cessation of anti-HER2 treatment
- Other
- Lead sponsor
- Dana-Farber Cancer Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 82 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2036
- U.S. locations
- 13
- States / cities
- Phoenix, Arizona • Washington D.C., District of Columbia • Jacksonville, Florida + 10 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.