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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 October 16, 2026 Report an issue

ClinicalTrials.gov public records Last synced Oct 16, 2026, 5:32 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.

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 241–252 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
Breast Neoplasms, Breast Diseases
Interventions
Anastrozole, Palbociclib, Trastuzumab, Pertuzumab
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
5
States / cities
New York, New York
Conditions
Pancreatic Ductal Adenocarcinoma, Non-small Cell Lung Cancer, HR+/HER2- Ductal and Lobular Breast Cancer, Triple Negative Breast Cancer, Colorectal Cancer
Interventions
[68Ga]Ga-NNS309, [177Lu]Lu-NNS309
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
162 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2031
U.S. locations
9
States / cities
Birmingham, Alabama • Los Angeles, California • Palo Alto, California + 6 more
Recruiting Phase 2 Interventional Accepts healthy volunteers

Rash & Diarrhea Prophylaxis With Capivasertib

NCT07426822
Conditions
Metastatic HR+/HER2- Breast Cancer
Interventions
Capivasertib, Loperamide, Fulvestrant, Ceterizine
Drug
Lead sponsor
Maryam Lustberg
Other
Eligibility
18 Years and older
Enrollment
108 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
New Haven, Connecticut
Conditions
HER2 Expressing Solid Tumors
Interventions
Dose Level 1, VNX-202, Dose Level 2, VNX-202, Dose Level 3, VNX-202, Dose Level 4, VNX-202
Genetic
Lead sponsor
Vironexis Biotherapeutics Inc.
Industry
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2033
U.S. locations
11
States / cities
Los Angeles, California • Denver, Colorado • Jacksonville, Florida + 8 more
Conditions
Invasive Breast Cancer
Interventions
Cemiplimab, Paclitaxel, Carboplatin (not mandatory), Doxorubicin, Cyclophosphamide
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2030
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Conditions
Metastatic HER2-Positive Breast Cancer
Interventions
Gemcitabine, Trastuzumab, Pertuzumab
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2025
U.S. locations
5
States / cities
Hartford, Connecticut • Basking Ridge, New Jersey • Middletown, New Jersey + 2 more
Conditions
Female Breast Carcinoma, Breast Cancer
Interventions
anastrozole, Palbociclib
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2028
U.S. locations
1
States / cities
Charlotte, North Carolina
Conditions
Adv Solid Malig - H&N SCC, ATM Pro / Def NSCLC, Gastric, Breast and Ovarian Cancer
Interventions
Administration of ceralasertib, Administration of ceralasertib in combination with olaparib, Administation of ceralasertib in combination with durvalumab, Administration of ceralasertib monotherapy, Administration of ceralasertib and olaparib, Administration of ceralasertib and durvalumab, Administration of ceralasertib in combination with AZD5305, Administration of ceralasertib in combination with carboplatin
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
358 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2026
U.S. locations
8
States / cities
Duarte, California • Irvine, California • Los Angeles, California + 4 more
Conditions
HER2-positive Breast Cancer
Interventions
tucatinib, placebo, T-DM1
Drug
Lead sponsor
Seagen, a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years and older
Enrollment
466 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2029
U.S. locations
321
States / cities
Mobile, Alabama • Gilbert, Arizona • Goodyear, Arizona + 180 more
Conditions
Advanced Breast Cancer, Metastatic Breast Cancer (HR+/ HER2-), Colorectal Cancer, Metastatic Colorectal Adenocarcinoma, Triple Negative Breast Cancer
Interventions
PF-08032562, Fulvestrant, Cetuximab, Fluorouracil, Oxaliplatin, Leucovorin, Bevacizumab
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
260 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
13
States / cities
Duarte, California • Grand Rapids, Michigan • Long Island City, New York + 7 more
Conditions
Breast Cancer, Ovarian Cancer, Endometrial Cancer, PIK3CA Mutation, HER2- Negative Breast Cancer, Advanced Breast Cancer, Unresectable Solid Tumor, Hormone Receptor Positive Tumor, Cervical Cancer
Interventions
RGT-490
Drug
Lead sponsor
Regor Pharmaceuticals Inc.
Industry
Eligibility
18 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
5
States / cities
Los Angeles, California • Houston, Texas • San Antonio, Texas + 1 more
Conditions
Breast Neoplasms, Gastroesophageal Junction Adenocarcinoma, HER2 Low Breast Neoplasms, HER2 Positive Breast Neoplasms, Stomach Neoplasms, Triple Negative Breast Neoplasms, Metastatic Breast Cancer, Metastatic Gastric Cancer, Advanced Breast Cancer, Advanced Gastric Cancer
Interventions
disitamab vedotin, tucatinib
Drug
Lead sponsor
Seagen, a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
77
States / cities
Tucson, Arizona • Orange, California • San Francisco, California + 39 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.