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, 3:05 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

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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

triple-negative HER2-positive hormone receptor-positive metastatic breast cancer

These describe how studies tend to be titled and grouped on ClinicalTrials.gov — they are search vocabulary, not medical guidance.

Showing 217–228 of 1,131 matching trials for Breast Cancer.

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Conditions: Breast Neoplasms, Breast Cancer, HER2-positive Early Breast Cancer
Interventions: Trastuzumab Deruxtecan, Paclitaxel, Trastuzumab, Pertuzumab, Doxorubicin, cyclophosphamide; Drug
Lead sponsor: AstraZeneca; Industry
Eligibility: 18 Years and older
Enrollment: 927 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2021 – 2027
U.S. locations: 22
States / cities: Springdale, Arkansas • Beverly Hills, California • Glendale, California + 19 more

Conditions: Breast Cancer
Interventions: Tamoxifen, Anastrozole, Fulvestrant; Drug
Lead sponsor: Priscilla McAuliffe; Other
Eligibility: Female only
Enrollment: 201 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2015 – 2024
U.S. locations: 12
States / cities: Birmingham, Alabama • San Francisco, California • Washington D.C., District of Columbia + 8 more

Conditions: Advanced Solid Tumors, Breast Cancer, Breast Carcinoma, Breast Neoplasms, ER Positive Breast Cancer, Cervical Cancers, Cervical Neoplasms, Cervical Carcinoma, Triple Negative Breast Cancer, Gynecologic Cancers, Gynecologic Neoplasm, Endometrial Cancer, Endometrial Neoplasm, Endometrial Carcinoma (EC), Fallopian Cancer, Ovarian Carcinoma, Ovarian Cancer, Ovarian Neoplasms, Prostate Cancers, Prostate Carcinoma, Solid Tumors, Neoplasms, Neoplasms by Site, Breast Diseases, Uterine Neoplasms, Genital Neoplasms, Female, Urogenital Neoplasms
Interventions: ATV-1601, ATV-1601 + Fulvestrant; Drug · Combination Product
Lead sponsor: Atavistik Bio, Inc; Industry
Eligibility: 18 Years and older
Enrollment: 134 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2025 – 2029
U.S. locations: 5
States / cities: Los Angeles, California • Lake Mary, Florida • Boston, Massachusetts + 2 more

Conditions: Breast Cancer Female, Breast Cancer, Breast Cancer Metastatic, Estrogen Receptor-positive Breast Cancer, HER2-positive Breast Cancer, Stage IV Breast Cancer
Interventions: Nab-Paclitaxel, Paclitaxel, Docetaxel, Phesgo, T-DM1, Pertuzumab, Trastuzumab Deruxtecan, Trastuzumab Subcutaneous Subcutaneous, Tucatinib, Trastuzumab; Drug
Lead sponsor: Dana-Farber Cancer Institute; Other
Eligibility: 18 Years and older
Enrollment: 72 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2033
U.S. locations: 1
States / cities: Boston, Massachusetts

Conditions: Breast Cancer, Breast Cancer Female, Metastatic Triple-Negative Breast Carcinoma, ER Positive Breast Cancer, HER2-negative Breast Cancer, HER2 Negative Breast Carcinoma, ER-negative Breast Cancer
Interventions: Datopotamab Deruxtecan; Drug
Lead sponsor: Nancy Lin, MD; Other
Eligibility: 18 Years and older
Enrollment: 58 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2029
U.S. locations: 3
States / cities: Miami, Florida • Boston, Massachusetts • Durham, North Carolina

Conditions: Breast Cancer, Metastatic Breast Cancer, HER2-positive Breast Cancer
Interventions: Cessation of anti-HER2 treatment; Other
Lead sponsor: Dana-Farber Cancer Institute; Other
Eligibility: 18 Years and older
Enrollment: 82 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2023 – 2036
U.S. locations: 13
States / cities: Phoenix, Arizona • Washington D.C., District of Columbia • Jacksonville, Florida + 10 more

Conditions: Breast Cancer
Interventions: Placebo, GLSI-100; Biological
Lead sponsor: Greenwich LifeSciences, Inc.; Industry
Eligibility: 18 Years to 100 Years
Enrollment: 2,250 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2022 – 2031
U.S. locations: 51
States / cities: Mobile, Alabama • Goodyear, Arizona • Tucson, Arizona + 44 more

Conditions: Breast Cancer
Interventions: Doxorubicin, Cyclophosphamide, Docetaxel, Paclitaxel; Drug
Lead sponsor: NSABP Foundation Inc; Network
Eligibility: 18 Years and older · Female only
Enrollment: 4,242 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2012 – 2025
U.S. locations: 914
States / cities: Anchorage, Alaska • Phoenix, Arizona • Scottsdale, Arizona + 612 more

Conditions: Breast Cancer
Interventions: Intermittent Fasting; Behavioral
Lead sponsor: Medical College of Wisconsin; Other
Eligibility: 18 Years and older
Enrollment: 20 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2027
U.S. locations: 1
States / cities: Milwaukee, Wisconsin

Conditions: Recurrent or Metastatic Solid Tumors
Interventions: Ifinatamab deruxtecan; Drug
Lead sponsor: Daiichi Sankyo; Industry
Eligibility: 18 Years and older
Enrollment: 680 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2024 – 2028
U.S. locations: 18
States / cities: Los Angeles, California • Whittier, California • Skokie, Illinois + 13 more

Conditions: Triple Negative Breast Neoplasms
Interventions: Durvalumab, Capivasertib, Oleclumab, Paclitaxel, Trastuzumab deruxtecan, Datopotamab deruxtecan; Drug
Lead sponsor: AstraZeneca; Industry
Eligibility: 18 Years to 130 Years · Female only
Enrollment: 243 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2018 – 2027
U.S. locations: 8
States / cities: Tucson, Arizona • Columbia, Maryland • Boston, Massachusetts + 4 more

Conditions: Breast Cancer
Interventions: Breast surgery; Procedure
Lead sponsor: Memorial Sloan Kettering Cancer Center; Other
Eligibility: 18 Years and older
Enrollment: 78 participants
Healthy volunteers: Healthy volunteers not accepted
Timeline: 2021 – 2027
U.S. locations: 10
States / cities: Hartford, Connecticut • Ann Arbor, Michigan • Basking Ridge, New Jersey + 7 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.

Breast Cancer clinical trials

How Breast Cancer studies are organized in the registry

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Live official records

Trastuzumab Deruxtecan (T-DXd) Alone or in Sequence With THP, Versus Standard Treatment (ddAC-THP), in HER2-positive Early Breast Cancer

Endocrine Response in Women With Invasive Lobular Breast Cancer

A Phase 1 Study of ATV-1601 in Patients With Advanced Cancer That Have AKT1 E17K Mutations

The SAPPHO Study: Sequential Therapy With Curative Intent in de Novo HER2+ Metastatic Breast Cancer

DATO-BASE: DATOpotamab-deruxtecan for Breast Cancer Brain metAstaSEs

STOP-HER2: Stopping Trastuzumab in HER2+ MBC

Phase 3 Study to Evaluate the Efficacy and Safety of HER2/Neu Peptide GLSI-100 (GP2 + GM-CSF) in HER2/Neu Positive Subjects

Docetaxel and Cyclophosphamide Compared to Anthracycline-Based Chemotherapy in Treating Women With HER2-Negative Breast Cancer

Impact of Intermittent Fasting on Biomarkers of Inflammation and Health-Related Quality of Life: A Feasibility Trial for Women With HR+/HER2- Early Breast Cancer

A Study to Evaluate the Efficacy and Safety of Ifinatamab Deruxtecan (I-DXd) in Subjects With Recurrent or Metastatic Solid Tumors (IDeate-PanTumor02)

A Study of Novel Anti-cancer Agents in Patients With Metastatic Triple Negative Breast Cancer

Use of Sentinel Lymph Node Biopsy in Patients With Early-Stage, Palpable Node-Positive HR+/HER2- Breast Cancer Having Upfront Surgery and Adjuvant Radiation

About this Breast Cancer clinical trials directory page