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Condition Directory

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, 5:41 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
678
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 253–264 of 678 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

Open in full search
Conditions
Metastatic Breast Carcinoma, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Fulvestrant, Laboratory Biomarker Analysis, Letrozole, Palbociclib, Pembrolizumab
Drug · Other · Biological
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2026
U.S. locations
7
States / cities
Corona, California • Duarte, California • Lancaster, California + 4 more
Conditions
Advanced Metastatic Breast Cancer
Interventions
AZD2014, Fulvestrant
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 100 Years · Female only
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2026
U.S. locations
5
States / cities
Sarasota, Florida • Detroit, Michigan • Oklahoma City, Oklahoma + 2 more
Conditions
Breast Cancer
Interventions
Trastuzumab, Paclitaxel, Trastuzumab emtansine
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
512 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2022
U.S. locations
85
States / cities
Birmingham, Alabama • San Francisco, California • Hartford, Connecticut + 62 more
Conditions
Triple Negative Breast Cancer, TNBC - Triple-Negative Breast Cancer, Breast Cancer, Metastatic Breast Cancer
Interventions
Pembrolizumab, Olaparib, Radiation
Drug · Radiation
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Conditions
Breast Cancer, HER-2 Positive Breast Cancer
Interventions
Resistant Potato Starch, Placebo control
Dietary Supplement
Lead sponsor
University of Vermont Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2031
U.S. locations
1
States / cities
Burlington, Vermont
Conditions
Breast Cancer, HER2-negative Breast Cancer, ER Positive Breast Cancer
Interventions
Alpelisib, Tamoxifen, Zotatifin, Fulvestrant
Drug
Lead sponsor
Jennifer Lee Caswell-Jin
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Stanford, California
Conditions
HER-2 Positive Breast Cancer, Estrogen Receptor Positive Breast Cancer
Interventions
palbociclib, trastuzumab, pertuzumab, letrozole, Anastrozole, Exemestane, Fulvestrant
Drug
Lead sponsor
Alliance Foundation Trials, LLC.
Other
Eligibility
18 Years and older
Enrollment
518 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
35
States / cities
San Francisco, California • Washington D.C., District of Columbia • Clearwater, Florida + 30 more
Conditions
Breast Cancer, HER2-negative Breast Cancer, ER Positive Breast Cancer, PR-Positive Breast Cancer
Interventions
Infigratinib, Tamoxifen, Omnipaque 350, Iopamidol, Computed tomography (CT)
Drug · Diagnostic Test
Lead sponsor
Jennifer Lee Caswell-Jin
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Stanford, California
Conditions
Breast Cancer, Breast Neoplasms, Breast Cancers
Interventions
Tirzepatide
Drug
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
1
States / cities
Dallas, Texas
Conditions
Breast Cancer
Interventions
anastrozole, everolimus, exemestane, goserelin acetate, letrozole, leuprolide acetate, tamoxifen citrate, placebo
Drug · Other
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years and older
Enrollment
1,939 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2030
U.S. locations
1455
States / cities
Birmingham, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 887 more
Conditions
Early Breast Cancer
Interventions
Endocrine therapy interruption
Other
Lead sponsor
ETOP IBCSG Partners Foundation
Network
Eligibility
18 Years to 42 Years · Female only
Enrollment
518 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2028
U.S. locations
103
States / cities
Los Angeles, California • Palo Alto, California • San Diego, California + 77 more
Conditions
Breast Cancer
Interventions
exemestane, tamoxifen, triptorelin
Drug
Lead sponsor
ETOP IBCSG Partners Foundation
Network
Eligibility
18 Years to 65 Years · Female only
Enrollment
2,672 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2024
U.S. locations
139
States / cities
Burbank, California • La Jolla, California • Mission Hills, California + 106 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.