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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 20, 2026 Report an issue

ClinicalTrials.gov public records Last synced Oct 20, 2026, 10:10 AM 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
679
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 541–552 of 679 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 Cancer
Interventions
Abemaciclib
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older · Female only
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
27
States / cities
Sedona, Arizona • Tucson, Arizona • San Francisco, California + 22 more
Conditions
Breast Cancer
Interventions
18F-FFNP, CTI/Siemens Biograph 40 PET/CT Scanner, Estradiol, 18F-FDG
Drug · Device
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older · Female only
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Estrogen Receptor Positive, HER2 Positive Breast Carcinoma, HER2/Neu Negative, Progesterone Receptor Positive, Recurrent Breast Carcinoma, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Fulvestrant, Laboratory Biomarker Analysis, Lapatinib Ditosylate, Placebo Administration
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
295 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2014
U.S. locations
368
States / cities
Little Rock, Arkansas • Arroyo Grande, California • Burbank, California + 259 more
Conditions
Post Menopausal, Hormone Receptor Positive Breast Cancer
Interventions
TAK700
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older · Female only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Madison, Wisconsin
Conditions
Breast Cancer
Interventions
PD 0332991, letrozole
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older · Female only
Enrollment
177 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2017
U.S. locations
51
States / cities
Alhambra, California • Bakersfield, California • Fullerton, California + 24 more
Conditions
Breast Cancer
Interventions
Anastrozole (Arimidex), Goserelin (Zoladex)
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 70 Years · Female only
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2013
U.S. locations
1
States / cities
Stanford, California
Conditions
Hormone Receptor Positive Malignant Neoplasm of Breast
Interventions
Episodic future thinking, Episodic recent thinking
Behavioral
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Roanoke, Virginia
Conditions
Breast Cancer
Interventions
DHEA, Surgical resection
Drug · Procedure
Lead sponsor
Barbara Ann Karmanos Cancer Institute
Other
Eligibility
18 Years to 120 Years · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Detroit, Michigan
Completed Early Phase 1 Interventional Results available

Cabergoline in Metastatic Breast Cancer

NCT01730729
Conditions
Recurrent Breast Cancer, Stage IV Breast Cancer
Interventions
cabergoline
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Metastatic Breast Cancer
Interventions
Abemaciclib, Nonsteroidal Aromatase Inhibitor (NSAI)
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
70
States / cities
Daphne, Alabama • Tempe, Arizona • Fountain Valley, California + 60 more
Conditions
Metastatic Breast Cancer
Interventions
fulvestrant, anastrozole
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
45 Years to 100 Years · Female only
Enrollment
205 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2017
U.S. locations
5
States / cities
Frederick, Maryland • St Louis, Missouri • Teaneck, New Jersey + 2 more
Conditions
Breast Cancer
Interventions
MK-0752
Drug
Lead sponsor
Loyola University
Other
Eligibility
18 Years and older · Female only
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Maywood, Illinois

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.