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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 October 15, 2026 Report an issue

ClinicalTrials.gov public records Last synced Oct 15, 2026, 1:42 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
1131
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 193–204 of 1,131 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
Advanced or Metastatic Breast Cancer
Interventions
PF-07220060 CDK4 inhibitor, Fulvestrant, Everolimus, Exemestane
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
333 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
9
States / cities
Irvine, California • Los Angeles, California • Newport Beach, California + 3 more
Conditions
Advanced or Metastatic Breast Cancer
Interventions
Ibrance
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
New York, New York
Conditions
Breast Cancer, HER2-positive Breast Cancer, Breast Cancer Stage IV
Interventions
Personalis NeXT Personal, Natera Signatera, fam-trastuzumab deruxtecan-nxki (T-DXd), pertuzumab, called T-DXd+P
Diagnostic Test · Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Invasive Breast Carcinoma, Localized Estrogen Receptor-Positive Breast Carcinoma, Localized Human Epidermal Growth Factor Receptor (HER2)-Negative Breast Carcinoma
Interventions
Abemaciclib, Biospecimen Collection, Imlunestrant, Questionnaire Administration, Radiologic Imaging Procedure
Drug · Procedure · Other
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Breast Cancer, HER2-positive Breast Cancer
Interventions
trastuzumab-emtansine, Trastuzumab SC, Paclitaxel
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2029
U.S. locations
53
States / cities
San Francisco, California • Derby, Connecticut • Fairfield, Connecticut + 44 more
Conditions
Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, Castration-Resistant Prostate Carcinoma, Clinical Stage III Gastric Cancer AJCC v8, Clinical Stage IV Gastric Cancer AJCC v8, HER2-Positive Breast Carcinoma, Locally Advanced Breast Carcinoma, Locally Advanced Gastric Carcinoma, Locally Advanced Malignant Solid Neoplasm, Locally Advanced Ovarian Carcinoma, Locally Advanced Pancreatic Carcinoma, Locally Advanced Prostate Carcinoma, Metastatic Breast Carcinoma, Metastatic Gastric Carcinoma, Metastatic Malignant Solid Neoplasm, Metastatic Ovarian Carcinoma, Metastatic Pancreatic Carcinoma, Metastatic Prostate Carcinoma, Platinum-Sensitive Ovarian Carcinoma, Recurrent Breast Carcinoma, Recurrent Gastric Carcinoma, Recurrent Ovarian Carcinoma, Recurrent Pancreatic Carcinoma, Recurrent Prostate Carcinoma, Stage II Pancreatic Cancer AJCC v8, Stage III Ovarian Cancer AJCC v8, Stage III Pancreatic Cancer AJCC v8, Stage III Prostate Cancer AJCC v8, Stage IV Ovarian Cancer AJCC v8, Stage IV Pancreatic Cancer AJCC v8, Stage IV Prostate Cancer AJCC v8
Interventions
Biopsy Procedure, Biospecimen Collection, Computed Tomography, Magnetic Resonance Imaging, Talazoparib
Procedure · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
4
States / cities
Gainesville, Florida • Bethesda, Maryland • Oklahoma City, Oklahoma
Conditions
Estrogen Receptor-positive Breast Cancer, HER2-negative Breast Cancer, Invasive Ductal Breast Carcinoma, Progesterone Receptor-positive Breast Cancer, Recurrent Breast Cancer, Stage IV Breast Cancer
Interventions
PI3K inhibitor BYL719, letrozole, laboratory biomarker analysis, pharmacological studies
Drug · Other
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2022
U.S. locations
2
States / cities
Boston, Massachusetts • Nashville, Tennessee
Conditions
Breast Cancer Metastatic Breast Cancer, HER2-negative Breast Cancer
Interventions
Elacestrant, DC1 native/mutated ESR1
Drug · Biological
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Tampa, Florida
Conditions
ER+ HER2- Advanced Breast Cancer
Interventions
AZD9833, AZD9833 with palbociclib, AZD9833 with everolimus, AZD9833 with abemaciclib, AZD9833 with capivasertib, AZD9833 with ribociclib, AZD9833 with anastrozole
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years · Female only
Enrollment
396 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
5
States / cities
Aurora, Colorado • Sarasota, Florida • Philadelphia, Pennsylvania + 2 more
Conditions
HER2-positive Breast Cancer
Interventions
[18F]FMISO PET/MRI imaging
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older · Female only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Conditions
Locally Advanced (Inoperable) or Metastatic Breast Cancer
Interventions
Capivasertib, Fulvestrant, Palbociclib, Ribociclib, Abemaciclib
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 99 Years
Enrollment
893 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2029
U.S. locations
40
States / cities
Tucson, Arizona • Fountain Valley, California • Glendale, California + 35 more
Conditions
Estrogen Receptor-Positive, HER2-Negative Locally Advanced or Metastatic Breast Cancer
Interventions
Giredestrant, Giredestrant-matched Placebo, Letrozole, Letrozole-matched Placebo, Palbociclib, LHRH Agonist
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
992 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
37
States / cities
Fountain Valley, California • Long Beach, California • San Leandro, California + 32 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.