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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 17, 2026, 7:25 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
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.

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 337–348 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
Non Small Cell Lung Cancer, Breast Cancer
Interventions
YL202
Drug
Lead sponsor
MediLink Therapeutics (Suzhou) Co., Ltd.
Industry
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
7
States / cities
Plantation, Florida • Detroit, Michigan • Houston, Texas + 4 more
Conditions
HER2-Positive Primary Breast Cancer, Residual Invasive Breast Cancer
Interventions
DS-8201a, T-DM1
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
1,600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
126
States / cities
Anaheim, California • Baldwin Park, California • Bellflower, California + 94 more
Conditions
Advanced Breast Cancer
Interventions
Lerociclib + Letrozole or Fulvestrant
Drug
Lead sponsor
EQRx, Inc.
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
6
States / cities
Jacksonville, Florida • Omaha, Nebraska • Salem, Oregon + 3 more
Conditions
Metastatic Breast Cancer, HER2-positive Breast Cancer
Interventions
Lumpectomy or mastectomy, Radiotherapy, Trastuzumab, Pertuzumab, Paclitaxel, or a combination of these drugs
Procedure · Radiation · Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Conditions
Breast Cancer, Metastatic, HER2 + Breast Cancer
Interventions
Trastuzumab (Herceptin), SIgnatera
Drug · Diagnostic Test
Lead sponsor
Nagoya City University
Other
Eligibility
20 Years and older · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
San Carlos, Texas
Conditions
HER2-positive Breast Cancer, HER2+ Breast Cancer
Interventions
Carvedilol, Empagliflozin
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
St Louis, Missouri
Conditions
Advanced Triple-Negative Breast Carcinoma, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, Metastatic Triple-Negative Breast Carcinoma, Recurrent Breast Carcinoma
Interventions
Biopsy, Computed Tomography, Magnetic Resonance Imaging, Positron Emission Tomography, Therapeutic Estradiol
Procedure · Biological
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
9
States / cities
Birmingham, Alabama • San Francisco, California • Washington D.C., District of Columbia + 5 more
Conditions
Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIA Breast Cancer AJCC v8, Anatomic Stage IIB Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Anatomic Stage IIIB Breast Cancer AJCC v8, Anatomic Stage IIIC Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, Invasive Breast Carcinoma, Locally Advanced HER2-Positive Breast Carcinoma, Metastatic HER2-Positive Breast Carcinoma, Prognostic Stage IB Breast Cancer AJCC v8, Prognostic Stage II Breast Cancer AJCC v8, Prognostic Stage IIA Breast Cancer AJCC v8, Prognostic Stage IIB Breast Cancer AJCC v8, Prognostic Stage III Breast Cancer AJCC v8, Prognostic Stage IIIA Breast Cancer AJCC v8, Prognostic Stage IIIB Breast Cancer AJCC v8, Prognostic Stage IIIC Breast Cancer AJCC v8, Prognostic Stage IV Breast Cancer AJCC v8
Interventions
Carboplatin, Docetaxel, Fulvestrant, Pertuzumab, Quality-of-Life Assessment, Ribociclib, Trastuzumab, Tucatinib
Drug · Biological · Other
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Hormone Receptor Positive Breast Carcinoma, HER2-negative Breast Cancer
Interventions
OP-1250
Drug
Lead sponsor
Olema Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
15
States / cities
Los Angeles, California • Aurora, Colorado • Deerfield Beach, Florida + 11 more
Conditions
Metastatic Breast Cancer
Interventions
Elacestrant
Drug
Lead sponsor
Stemline Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
4
States / cities
Springdale, Arkansas • Chicago, Illinois • Las Vegas, Nevada + 1 more
Conditions
Breast Cancer
Interventions
Carboplatin, Docetaxel, Trastuzumab (or biosimilar), Pertuzumab (or biosimilar)
Drug
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
8
States / cities
Fairway, Kansas • Kansas City, Kansas • Overland Park, Kansas + 3 more
Conditions
Breast Adenocarcinoma, Estrogen Receptor Negative, HER2/Neu Negative, Progesterone Receptor Negative, Stage IB Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage IIIA Breast Cancer, Stage IIIC Breast Cancer, Triple-Negative Breast Carcinoma
Interventions
Carboplatin, Cyclophosphamide, Doxorubicin Hydrochloride, Laboratory Biomarker Analysis, Paclitaxel
Drug · Other
Lead sponsor
NRG Oncology
Other
Eligibility
18 Years and older
Enrollment
782 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2026
U.S. locations
1286
States / cities
Mobile, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 815 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.