- Conditions
- ER+ Breast Cancer
- Interventions
- Elacestrant
- Drug
- Lead sponsor
- Yale University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 50 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2027
- U.S. locations
- 7
- States / cities
- New Haven, Connecticut • Washington D.C., District of Columbia • Baltimore, Maryland + 4 more
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 14, 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.
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.
These describe how studies tend to be titled and grouped on ClinicalTrials.gov — they are search vocabulary, not medical guidance.
Live official records
Open in full search- Conditions
- Breast Cancer, Metastatic Breast Cancer, Triple Negative Breast Cancer, Estrogen-receptor-positive Breast Cancer, Hormone Receptor Negative Breast Carcinoma
- Interventions
- SERD* + abemaciclib, SERD* + everolimus, SERD* + everolimus or capecitabine, SOC, Antiandrogen
- Drug
- Lead sponsor
- UNC Lineberger Comprehensive Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 700 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2031
- U.S. locations
- 6
- States / cities
- New Haven, Connecticut • Baltimore, Maryland • Rochester, Minnesota + 3 more
- Conditions
- Breast Cancer
- Interventions
- LEE011, Letrozole, BYL719
- Drug
- Lead sponsor
- Novartis Pharmaceuticals
- Industry
- Eligibility
- 18 Years to 100 Years · Female only
- Enrollment
- 259 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2027
- U.S. locations
- 10
- States / cities
- San Diego, California • San Francisco, California • Tampa, Florida + 5 more
- Conditions
- Urothelial Carcinoma Bladder, Triple Negative Breast Cancer (TNBC), Hormone Receptor Positive Breast Adenocarcinoma, Non Small Cell Lung Cancer, Cervical Adenocarcinoma, Colorectal Adenocarcinoma, Head and Neck Cancer
- Interventions
- [225Ac]Ac-AKY-1189 (therapeutic), [64Cu]Cu-AKY-1189 (imaging)
- Drug
- Lead sponsor
- Aktis Oncology, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 150 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2032
- U.S. locations
- 14
- States / cities
- Duarte, California • Irvine, California • Miami, Florida + 10 more
- Conditions
- Locally Advanced Breast Cancer, Unresectable Breast Carcinoma, Metastatic Breast Cancer
- Interventions
- BNT323, BNT327
- Drug
- Lead sponsor
- BioNTech SE
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 380 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2025 – 2029
- U.S. locations
- 27
- States / cities
- Beverly Hills, California • Newport Beach, California • Port Saint Lucie, Florida + 18 more
- Conditions
- Triple Negative Breast Cancer, HER2-positive Breast Cancer, Hormone Receptor-positive Breast Cancer
- Interventions
- Magnetic Resonance Imaging
- Diagnostic Test
- Lead sponsor
- H. Lee Moffitt Cancer Center and Research Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 170 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2027
- U.S. locations
- 2
- States / cities
- Clearwater, Florida • Tampa, Florida
- Conditions
- Anatomic Stage IV Breast Cancer AJCC v8, Hormone Receptor Positive Breast Carcinoma, Metastatic Breast Carcinoma, Prognostic Stage IV Breast Cancer AJCC v8
- Interventions
- Computed Tomography, Fludeoxyglucose F-18, Positron Emission Tomography
- Procedure · Other
- Lead sponsor
- ECOG-ACRIN Cancer Research Group
- Network
- Eligibility
- 18 Years and older
- Enrollment
- 138 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2027
- U.S. locations
- 98
- States / cities
- Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 75 more
- Conditions
- Breast Cancer, Solid Tumors
- Interventions
- PF-07220060 + PF-07104091 combination dose escalation, PF-07104091 + PF-07220060 + fulvestrant dose expansion, PF-07104091 + PF-07220060 + letrozole dose expansion
- Drug
- Lead sponsor
- Pfizer
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 235 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2022 – 2027
- U.S. locations
- 12
- States / cities
- Los Angeles, California • Santa Monica, California • Boston, Massachusetts + 5 more
- Conditions
- Bladder Carcinoma, Ureter Carcinoma, Renal Pelvis Carcinoma, Non-small Cell Lung Cancer, Invasive Breast Carcinoma, Cutaneous Melanoma, Esophageal Carcinoma, Gastroesophageal Junction Carcinoma, Gastric Adenocarcinoma, Pancreatic Adenocarcinoma, Squamous Cell Carcinoma of the Head and Neck, Epithelial Ovarian Carcinoma, Fallopian Tube Carcinoma, Endometrial Carcinoma, Renal Cell Carcinoma, Rectal Adenocarcinoma, Colon Adenocarcinoma
- Interventions
- Guardant Reveal
- Diagnostic Test
- Lead sponsor
- Guardant Health, Inc.
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 2,285 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2030
- U.S. locations
- 33
- States / cities
- Birmingham, Alabama • Chandler, Arizona • Hot Springs, Arkansas + 30 more
- Conditions
- Estrogen Receptor-Positive, HER2-Negative Advanced Breast Cancer
- Interventions
- Giredestrant, Fulvestrant, Abemaciclib, Palbociclib, Ribociclib, LHRH Agonist, FoundationOne Liquid CDx Assay (F1LCDx)
- Drug · Diagnostic Test
- Lead sponsor
- Hoffmann-La Roche
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 1,050 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2029
- U.S. locations
- 40
- States / cities
- Daphne, Alabama • Greenbrae, California • Harbor City, California + 34 more
- Conditions
- Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIA Breast Cancer AJCC v8, Anatomic Stage IIB Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Invasive Breast Carcinoma, Prognostic Stage II Breast Cancer AJCC v8, Prognostic Stage IIA Breast Cancer AJCC v8, Prognostic Stage IIB Breast Cancer AJCC v8, Prognostic Stage IIIA Breast Cancer AJCC v8
- Interventions
- Docetaxel, Lumpectomy, Mastectomy, Nab-paclitaxel, Paclitaxel, Pertuzumab, Radiation Therapy, Trastuzumab, Trastuzumab Emtansine
- Drug · Procedure · Biological + 1 more
- Lead sponsor
- ECOG-ACRIN Cancer Research Group
- Network
- Eligibility
- 18 Years and older
- Enrollment
- 2,175 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2038
- U.S. locations
- 999
- States / cities
- Birmingham, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 674 more
- Conditions
- Estrogen Receptor Positive, HER2/Neu Negative, Invasive Breast Carcinoma, Progesterone Receptor Positive
- Interventions
- Radiation Therapy, Therapeutic Conventional Surgery
- Radiation · Procedure
- Lead sponsor
- M.D. Anderson Cancer Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 25 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2017 – 2027
- U.S. locations
- 1
- States / cities
- Houston, Texas
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.