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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.

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ClinicalTrials.gov public records Last synced Oct 9, 2026, 11:21 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official matching trials
2918
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.

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These controls apply only within Breast Cancer. Default order is Recently updated. Add location, sponsor, treatment, or recruitment status to narrow this condition page further.

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Showing 13–24 of 2,918 matching trials for Breast Cancer.
Live ClinicalTrials.gov results.
Local aggregate panels are unavailable or hidden for filtered views. The result list above identifies its data source.

Live official records

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Conditions
Breast Neoplasms
Interventions
Patritumab deruxtecan, Paclitaxel, Nab-paclitaxel, Capecitabine, Pegylated liposomal doxorubicin, Trastuzumab deruxtecan, Rescue Medication
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2033
U.S. locations
34
States / cities
Daphne, Alabama • Tucson, Arizona • Los Angeles, California + 27 more
Conditions
Advanced Malignant Solid Neoplasm, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, Locally Advanced Malignant Solid Neoplasm, Malignant Female Reproductive System Neoplasm, Metastatic HER2-Negative Breast Carcinoma, Metastatic Malignant Solid Neoplasm, Recurrent Endometrial Carcinoma, Recurrent Fallopian Tube Carcinoma, Recurrent Malignant Female Reproductive System Neoplasm, Recurrent Malignant Solid Neoplasm, Recurrent Ovarian Carcinoma, Recurrent Primary Peritoneal Carcinoma, Unresectable HER2-Negative Breast Carcinoma, Unresectable Malignant Solid Neoplasm
Interventions
Alpelisib, Binimetinib, Biopsy Procedure, Biospecimen Collection, Bone Marrow Aspiration, Bone Marrow Biopsy, Bone Scan, Computed Tomography, Echocardiography Test, Fluorouracil, Fulvestrant, Ipatasertib, Leucovorin, Magnetic Resonance Imaging, Multigated Acquisition Scan, Mutation Carrier Screening, Neratinib Maleate, Nilotinib Hydrochloride Monohydrate, Olaparib, Oxaliplatin, Paclitaxel, Palbociclib, Panitumumab, Positron Emission Tomography, Selumetinib Sulfate, Sotorasib
Drug · Procedure · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Not listed
Enrollment
2,900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
479
States / cities
Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 355 more
Conditions
Brest Cancer ER+ and HER2 Negative
Interventions
Letrozole
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years to 59 Years · Female only
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
1
States / cities
The Bronx, New York
Conditions
Breast Neoplasms, Neoplasm Metastasis
Interventions
LY4064809, Placebo, Ribociclib, Palbociclib, Abemaciclib, Anastrozole, Letrozole, Exemestane, Fulvestrant
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2033
U.S. locations
129
States / cities
Anchorage, Alaska • Chandler, Arizona • Phoenix, Arizona + 110 more
Conditions
Metastatic Colorectal Cancer, Metastatic Pancreatic Cancer, Metastatic Ovarian Cancer, Metastatic Breast Carcinoma, Metastatic Endocrine Tumors/ Neuroendocrine Tumors
Interventions
Pembrolizumab (Keytruda), Fludarabine, Cyclophosphamide, Aldesleukin, Young TIL
Drug · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 72 Years
Enrollment
332 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2029
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Melanoma, Non-small Cell Lung Cancer, Squamous Cell Carcinoma (Skin), Renal Cell Carcinoma, Merkel Cell Carcinoma, Triple Negative Breast Cancer, Head and Neck Squamous Cell Carcinoma, Gastric Cancer/Gastroesophageal Junction Cancer, High Grade Serous Ovarian Carcinoma
Interventions
AZD6750, rilvegostomig
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
6
States / cities
Grand Rapids, Michigan • St Louis, Missouri • Pittsburgh, Pennsylvania + 3 more
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8
Interventions
Sham Intervention, Survey Administration, Transcranial Direct Current Stimulation
Procedure · Other · Device
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
60 Years to 85 Years · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Ann Arbor, Michigan
Recruiting No phase listed Observational

Genomic Services Research Program

NCT02595957
Conditions
Colon Cancer, Breast Cancer
Interventions
Not listed
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
1 Month to 105 Years
Enrollment
5,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2099
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Anatomic Stage IIIC Breast Cancer AJCC v8, Estrogen Receptor-Positive Breast Carcinoma, HER2-Negative Breast Carcinoma
Interventions
Anastrozole, Biospecimen Collection, Bone Scan, Chemotherapy, Computed Tomography, Exemestane, Letrozole, Oncotype DX Breast Cancer Assay, Positron Emission Tomography, Ribociclib Succinate
Drug · Procedure
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
1,978 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
201
States / cities
Jonesboro, Arkansas • Auburn, California • Berkeley, California + 167 more
Conditions
Breast Neoplasms, Colorectal Neoplasms, Prostate Neoplasm, Endometrial Neoplasms, Neoplasm Metastasis, Stomach Neoplasms, Esophageal Neoplasms
Interventions
LY4257496, Standard of Care Anticancer Therapies, LY4257529
Drug · Diagnostic Test
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
421 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2035
U.S. locations
16
States / cities
Duarte, California • Santa Monica, California • Stanford, California + 11 more
Active, not recruiting Phase 1 Interventional

[18F]FLT PET/CT in Rb+ Metastatic Breast Cancer

NCT02608216
Conditions
Breast Neoplasm, Metastatic Breast Cancer, Rb+ Breast Cancer
Interventions
[18F]FLT, PET/CT, ribociclib, paclitaxel
Drug · Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Conditions
Breast Cancer
Interventions
Trastuzumab deruxtecan (T-DXd), Ado-trastuzumab emtansine (T-DM1)
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
524 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
28
States / cities
Los Angeles, California • San Diego, California • San Francisco, California + 22 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.