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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 17, 2026 Report an issue

ClinicalTrials.gov public records Last synced Oct 16, 2026, 8:49 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
1133
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 289–300 of 1,133 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
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Estrogen Receptor-Positive Breast Carcinoma, HER2-Negative Breast Carcinoma, HER2-Positive Breast Carcinoma, Triple-Negative Breast Carcinoma
Interventions
Biospecimen Collection, Electronic Health Record Review, Survey Administration
Procedure · Other
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
5
States / cities
Goodyear, Arizona • Duarte, California • Irvine, California + 2 more
Conditions
Breast Cancer, HER2-positive Breast Cancer, Triple Negative Breast Cancer
Interventions
Neoadjuvant Chemotherapy, Radiation Therapy, MRI, Breast Cancer Surgery, Biopsy, Biospecimen collection
Drug · Radiation · Procedure
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Conditions
Brain Metastases, Human Epidermal Growth Factor 2 Positive Carcinoma of Breast, Advanced Breast Cancer
Interventions
Trastuzumab, Trastuzumab Emtansine (T-DM1), Pertuzumab, Tucatinib
Drug
Lead sponsor
Carey Anders, M.D.
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
8
States / cities
San Francisco, California • Boston, Massachusetts • Ann Arbor, Michigan + 5 more
Conditions
Estrogen Receptor Negative, Estrogen Receptor Positive, HER2/Neu Negative, HER2/Neu Positive, Progesterone Receptor Negative, Progesterone Receptor Positive, Recurrent Breast Carcinoma, Stage IIIC Breast Cancer AJCC v6, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Bevacizumab, Ixabepilone, Laboratory Biomarker Analysis, Nab-paclitaxel, Paclitaxel, Questionnaire Administration
Biological · Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
799 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2017
U.S. locations
703
States / cities
Scottsdale, Arizona • Fort Smith, Arkansas • Jonesboro, Arkansas + 472 more
Conditions
Metastatic Breast Cancer
Interventions
Lasofoxifene in combination with abemaciclib, Fulvestrant in combination with abemaciclib
Drug
Lead sponsor
LeonaBio
Industry
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
36
States / cities
Scottsdale, Arizona • Tucson, Arizona • Santa Rosa, California + 25 more
Conditions
Hormone Receptor-positive Breast Cancer, Hormone Receptor Positive HER-2 Negative Breast Cancer, Metastatic Breast Cancer
Interventions
EP0062, Elacestrant, Everolimus, Abemaciclib, Fulvestrant, Exemestane
Drug
Lead sponsor
Ellipses Pharma
Industry
Eligibility
18 Years and older · Female only
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
7
States / cities
New Haven, Connecticut • Tampa, Florida • Boston, Massachusetts + 4 more
Conditions
HER2-positive Breast Cancer, HER2-positive Gastric Cancer, HER2-positive Non-Small Cell Lung Cancer, HER2-positive Colorectal Cancer, HER2-positive Tumors, HER2 Low Breast Cancer
Interventions
XMT-2056
Drug
Lead sponsor
Day One Biopharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
14
States / cities
Los Angeles, California • Stanford, California • Celebration, Florida + 8 more
Conditions
Breast Cancer, Small Cell Lung Cancer, Ovarian Cancer, Gastric Cancer, Hormone-receptor-positive Breast Cancer, Hormone Receptor Positive HER-2 Negative Breast Cancer, Advanced Solid Tumor, Endometrial Cancer, Prostate Cancer, TNBC - Triple-Negative Breast Cancer, GastroEsophageal Cancer, Bladder Cancer
Interventions
BG-68501, Fulvestrant, BGB-43395
Drug
Lead sponsor
BeiGene
Industry
Eligibility
18 Years and older
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
6
States / cities
Newport Beach, California • Lake Mary, Florida • St Louis, Missouri + 3 more
Conditions
Estrogen Receptor Negative, Estrogen Receptor Positive, HER2/Neu Negative, Progesterone Receptor Negative, Recurrent Breast Carcinoma, Stage IV Breast Cancer, Triple-Negative Breast Carcinoma
Interventions
Carboplatin, Laboratory Biomarker Analysis, Pembrolizumab
Drug · Other · Biological
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Estrogen Receptor (ER)-Positive, HER2-negative, Locally Advanced or Metastatic Breast Cancer
Interventions
Giredestrant, Exemestane, Fulvestrant, Tamoxifen, Everolimus, LHRH Agonist, Dexamethasone Mouth Rinse
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
18 Years and older
Enrollment
373 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
55
States / cities
Anchorage, Alaska • Tucson, Arizona • Little Rock, Arkansas + 47 more
Conditions
Breast Adenocarcinoma, HER2-Positive Breast Carcinoma, Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8
Interventions
Biospecimen Collection
Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
1
States / cities
Jacksonville, Florida
Conditions
HER2-positive Breast Cancer, Recurrent Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer, Breast Adenocarcinoma, Inflammatory Breast Carcinoma
Interventions
pertuzumab, trastuzumab, paclitaxel albumin-stabilized nanoparticle formulation, laboratory biomarker analysis
Biological · Drug · Other
Lead sponsor
City of Hope Medical Center
Other
Eligibility
19 Years and older · Female only
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2026
U.S. locations
3
States / cities
Duarte, California • Lancaster, California • South Pasadena, California

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.