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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.

By Clinical Trials Finder Guidance last reviewed June 10, 2026 Data synced November 15, 2026 Report an issue

ClinicalTrials.gov public records Last synced Nov 15, 2026, 1:50 PM EST

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.

Official matching trials
7089
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.

Filter and sort this condition

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 1117–1128 of 7,089 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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Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Adjuvant Therapy With an Alpha-lactalbumin Vaccine in Triple-Negative Breast Cancer

NCT04674306
Conditions
Pathologic Stage IIA-IIIC Triple-Negative Breast Cancer, TNBC - Triple-Negative Breast Cancer, Residual Disease
Interventions
α-lactalbumin vaccine, Zymosan
Biological
Lead sponsor
George T. Budd
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Cleveland, Ohio
Completed Not applicable Interventional Results available

Lifestyle, Exercise, and Nutrition Study Early After Diagnosis

NCT03314688
Conditions
Breast Neoplasms
Interventions
Dietary/Physical Activity intervention, Usual Care
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older · Female only
Enrollment
173 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
2
States / cities
New Haven, Connecticut • Boston, Massachusetts
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, HER2-Negative Breast Carcinoma, Hormone Receptor-Positive Breast Carcinoma, Invasive Breast Carcinoma
Interventions
Letrozole, Simvastatin
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
4
States / cities
Atlanta, Georgia
Conditions
Soft-tissue Sarcoma, Triple Negative Breast Cancer, Non-small Cell Lung Cancer, Cervical Cancer, Ovarian Cancer, KRAS Mutation-Related Tumors
Interventions
Spedox-6, Pegfilgrastim, Filgrastim
Drug
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years and older
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
1
States / cities
Orange, California
Conditions
Breast Cancer, Stage III Breast Cancer, Breast Cancer Female, Stage I Breast Cancer, Stage II Breast Cancer
Interventions
THRIVE, Health Education Support Program
Behavioral
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
65 Years and older · Female only
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
4
States / cities
Boston, Massachusetts • Cleveland, Ohio • Pittsburgh, Pennsylvania + 1 more
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8
Interventions
Biospecimen Collection, Fisetin, Placebo Administration, Quality-of-Life Assessment, Questionnaire Administration
Procedure · Drug · Other
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
Female only
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
7
States / cities
Alhambra, California • Beverly Hills, California • Burbank, California + 4 more
Conditions
Breast Cancer
Interventions
Sulindac Pill, Placebo
Drug
Lead sponsor
Alison Stopeck
Other
Eligibility
35 Years to 70 Years · Female only
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
2
States / cities
Los Angeles, California • Stony Brook, New York
Conditions
Breast Cancer
Interventions
Contrast Enhanced Mammography
Diagnostic Test
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
30 Years to 75 Years · Female only
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Houston, Texas
Active, not recruiting Phase 1 Interventional

T-Cell Therapy for Advanced Breast Cancer

NCT02792114
Conditions
Breast Cancer, Metastatic HER2-negative Breast
Interventions
Cyclophosphamide, Mesothelin-targeted T cells, AP1903
Drug · Biological
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
186 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2027
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Suspended No phase listed Observational Accepts healthy volunteers

Genetic Testing to Improve Management of Patients Undergoing Breast Biopsy

NCT06060561
Conditions
Breast Carcinoma
Interventions
Non-Interventional Study
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Jacksonville, Florida
Conditions
Metastatic Breast Cancer
Interventions
PMD-026, fulvestrant
Drug
Lead sponsor
Phoenix Molecular Designs
Industry
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
10
States / cities
Gilbert, Arizona • Duarte, California • Irvine, California + 7 more
Conditions
Impaired Cognition, Chemo-brain, Breast Cancer
Interventions
Cognitive, functional and subjective assessments, MRI, PET Scan
Other · Device · Radiation
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
60 Years and older · Female only
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2028
U.S. locations
2
States / cities
Boston, Massachusetts • Salem, Massachusetts

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.