- Conditions
- HER2-positive Breast Cancer, Metastatic Cancer, Metastatic Breast Cancer, Metastatic, HER2-positive Metastatic Breast Cancer, HER2 Mutation-Related Tumors, HER-2 Protein Overexpression, HER2-negative Breast Cancer, Triple Negative Breast Cancer, HR Positive, Hormone Receptor-positive Breast Cancer, Estrogen Receptor Positive Tumor, Progesterone Receptor-positive Breast Cancer, Hormone Receptor Negative Breast Carcinoma, Solid Tumor, Solid Tumor, Adult, Solid Carcinoma, HER2 Low Breast Cancer, HER2 Low Breast Carcinoma, ER Positive Breast Cancer, PR-positive Breast Cancer, Minimal Residual Disease, Colo-rectal Cancer, Colon Cancer, Rectal Cancer, ctDNA Monitoring, Colorectal Neoplasms, Colonic Neoplasms, Rectal Neoplasms, Neoplasm, Residual, Adenocarcinoma of Colon, Adenocarcinoma
- Interventions
- ALX148, Fam-Trastuzumab Deruxtecan-Nxki, Zanidatamab, Tucatinib, TTX-MC138
- Drug
- Lead sponsor
- QuantumLeap Healthcare Collaborative
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 280 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2031
- U.S. locations
- 10
- States / cities
- Birmingham, Alabama • Phoenix, Arizona • Aurora, Colorado + 7 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
- Interventions
- TOL2506, Tamoxifen, Letrozole Tablets, Anastrozole Tablets, Exemestane Tablets
- Drug
- Lead sponsor
- Tolmar Inc.
- Industry
- Eligibility
- 18 Years to 49 Years
- Enrollment
- 250 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2026
- U.S. locations
- 17
- States / cities
- Greenbrae, California • Parker, Colorado • Chicago, Illinois + 14 more
- Conditions
- Breast Cancer
- Interventions
- Trastuzumab deruxtecan (DS-8201a), Capecitabine, Eribulin, Gemcitabine, Paclitaxel, Nab-paclitaxel
- Drug
- Lead sponsor
- Daiichi Sankyo
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 557 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2026
- U.S. locations
- 38
- States / cities
- Chandler, Arizona • Gilbert, Arizona • Goodyear, Arizona + 31 more
- Conditions
- Brain Metastases, HR+ Metastatic Breast Cancer
- Interventions
- Stereotactic Radiosurgery (SRS), Abemaciclib, Endocrine therapy
- Radiation · Drug
- Lead sponsor
- H. Lee Moffitt Cancer Center and Research Institute
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 31 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2027
- U.S. locations
- 2
- States / cities
- Tampa, Florida • Columbus, Ohio
- Conditions
- Advanced Solid Tumor, Advanced Breast Cancer, Metastatic Breast Cancer, Hormone-receptor-positive Breast Cancer, Hormone Receptor Positive Breast Carcinoma, Hormone Receptor Positive Malignant Neoplasm of Breast, HER2-negative Breast Cancer, Hormone Receptor Positive HER-2 Negative Breast Cancer
- Interventions
- BGB-43395, Fulvestrant, Letrozole, Elacestrant, Anti-Diarrheal Agent
- Drug
- Lead sponsor
- BeOne Medicines
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 433 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2029
- U.S. locations
- 9
- States / cities
- Denver, Colorado • Lake Mary, Florida • Detroit, Michigan + 6 more
- Conditions
- ER-Positive HER2-Negative Breast Cancer
- Interventions
- AZD9833, Anastrozole, Anastrozole placebo, AZD9833 placebo, Palbociclib, Luteinizing hormone-releasing hormone (LHRH) agonist
- Drug
- Lead sponsor
- AstraZeneca
- Industry
- Eligibility
- 18 Years to 130 Years
- Enrollment
- 1,371 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2021 – 2029
- U.S. locations
- 30
- States / cities
- Mobile, Alabama • Springdale, Arkansas • Harbor City, California + 25 more
- Conditions
- HR+/HER2- Breast Cancer
- Interventions
- BGB-43395, Letrozole, Abemaciclib, Palbociclib, Ribociclib
- Drug
- Lead sponsor
- BeOne Medicines
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 1,056 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2037
- U.S. locations
- 63
- States / cities
- Birmingham, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 59 more
- Conditions
- Breast Cancer
- Interventions
- Inavolisib, Fulvestrant, Alpelisib, Bupropion, Omeprazole, Midazolam
- Drug
- Lead sponsor
- Hoffmann-La Roche
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 420 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2029
- U.S. locations
- 39
- States / cities
- Greenbrae, California • Los Alamitos, California • Los Angeles, California + 32 more
- Conditions
- Breast Cancer, Early-Stage Breast Carcinoma, Hormone Receptor-Positive Breast Cancer, HER2-Negative Breast Cancer
- Interventions
- Stereotactic Radiation Therapy, Endocrine Therapy
- Radiation · Drug
- Lead sponsor
- Renaissance Institute of Precision Oncology and Radiosurgery
- Other
- Eligibility
- 50 Years and older
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2027 – 2032
- U.S. locations
- 1
- States / cities
- Winter Park, Florida
- Conditions
- Breast Cancer
- Interventions
- CT scans, DEXA scan
- Diagnostic Test
- Lead sponsor
- Montefiore Medical Center
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2019 – 2026
- U.S. locations
- 1
- States / cities
- The Bronx, New York
- Conditions
- Metastatic Breast Cancer
- Interventions
- 17B-estradiol, Letrozole, Anastrozole, Exemestane
- Drug
- Lead sponsor
- Dartmouth-Hitchcock Medical Center
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 20 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2016 – 2024
- U.S. locations
- 3
- States / cities
- Springfield, Massachusetts • Rochester, Minnesota • Lebanon, New Hampshire
- Conditions
- Breast Neoplasms
- Interventions
- PD0332991, Anastrozole, Goserelin, Surgery (standard of care), Tumor biopsy
- Drug · Procedure
- Lead sponsor
- Washington University School of Medicine
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 84 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2027
- U.S. locations
- 4
- States / cities
- Birmingham, Alabama • Scottsdale, Arizona • Rochester, Minnesota + 1 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.