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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, 1:36 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 1105–1116 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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Active, not recruiting No phase listed Observational

MRI Characterization of Mammographically Detected DCIS

NCT03495011
Conditions
Breast Cancer, Stage 0
Interventions
Breast MRI, Laboratory Biomarker Analysis
Diagnostic Test · Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
122 participants
Timeline
2018 – 2032
U.S. locations
1
States / cities
Seattle, Washington
Conditions
ERα+ Breast Cancer, ESR1 Gene Mutation
Interventions
Tamoxifen, FES PET/CT
Drug · Diagnostic Test
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
19 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
2
States / cities
Madison, Wisconsin
Conditions
Breast Cancer
Interventions
Elacestrant, Onapristone
Drug
Lead sponsor
Context Therapeutics Inc.
Industry
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
3
States / cities
Phoenix, Arizona • Zion, Illinois • Nashville, Tennessee
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Wearable Ultrasound Patch for Breast Imaging

NCT07186491
Conditions
Breast Cancer, Breast Abnormalities, Breast Lesion, Breast Asymmetry
Interventions
Wearable Ultrasound Patch
Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 85 Years · Female only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Metastatic Malignant Neoplasm to Brain, Recurrent Brain Metastases, Progressive Brain Metastases
Interventions
Palbociclib, Pembrolizumab
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2029
U.S. locations
2
States / cities
Boston, Massachusetts
Conditions
Anatomic Stage IV Breast Cancer AJCC v8, Metastatic Malignant Neoplasm in the Brain, Metastatic Triple-Negative Breast Carcinoma, Prognostic Stage IV Breast Cancer AJCC v8
Interventions
Anti-HER2/HER3 Dendritic Cell Vaccine, Pembrolizumab
Biological
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
3
States / cities
Tampa, Florida • Buffalo, New York • Charlottesville, Virginia
Conditions
Breast Cancer
Interventions
Vinorelbine, Trastuzumab, Avelumab, Utomilumab
Drug
Lead sponsor
Adrienne G. Waks
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
17
States / cities
Birmingham, Alabama • San Francisco, California • Washington D.C., District of Columbia + 12 more
Conditions
Invasive Breast Cancer
Interventions
Proton Radiation
Radiation
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Cancer Metastatic, Symptoms and Signs, Quality of Life
Interventions
Symptom Management and Survivorship Handbook + Coaching, Symptom Management and Survivorship Handbook
Behavioral
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Tucson, Arizona
Recruiting No phase listed Observational

HER2-positive Breast Cancer Registry

NCT06603597
Conditions
HER2 + Breast Cancer
Interventions
Not listed
Lead sponsor
Priyanka Sharma
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2044
U.S. locations
6
States / cities
Overland Park, Kansas • Westwood, Kansas • Lee's Summit, Missouri
Recruiting Phase 2 Interventional

Sacituzumab Govitecan In TNBC

NCT04230109
Conditions
Invasive Breast Cancer, Triple Negative Breast Cancer, ER-Negative Breast Cancer, PR-Negative Breast Cancer, HER2-negative Breast Cancer
Interventions
Sacituzumab Govitecan, Pembrolizumab
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
239 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2029
U.S. locations
5
States / cities
Boston, Massachusetts • Danvers, Massachusetts • Newton, Massachusetts
Conditions
Breast Cancer, Breast Cancer Recurrent
Interventions
rPBI
Radiation
Lead sponsor
University Health Network, Toronto
Other
Eligibility
18 Years to 99 Years · Female only
Enrollment
171 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
3
States / cities
New York, New York • Richmond, Virginia

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.