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Showing 1–24 of 843 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: HER2 Positive Breast Carcinoma Clear all
Completed Phase 1 Interventional Results available

4-1BB Agonist Monoclonal Antibody PF-05082566 With Trastuzumab Emtansine or Trastuzumab in Treating Patients With Advanced HER2-Positive Breast Cancer

NCT03364348
View directory record Official record
Conditions
HER2 Positive Breast Carcinoma, Recurrent Breast Carcinoma, Stage III Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer
Interventions
Utomilumab, Trastuzumab, Ado-Trastuzumab Emtansine
Drug
Lead sponsor
George W. Sledge Jr.
Other
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Oct 18, 2022 · Synced Sep 28, 2026, 9:05 PM EDT
Recruiting Phase 3 Interventional

Evaluating the Addition of Adjuvant Chemotherapy to Ovarian Function Suppression Plus Endocrine Therapy in Premenopausal Patients With pN0-1, ER-Positive/HER2-Negative Breast Cancer and an Oncotype Recurrence Score Less Than or Equal to 25

NCT05879926
View directory record Official record
Conditions
Breast Cancer
Interventions
Ovarian Function Suppression + Aromatase Inhibitor, Adjuvant Chemotherapy + Ovarian Function Suppression
Drug
Lead sponsor
NRG Oncology
Other
Eligibility
18 Years to 60 Years · Female only
Enrollment
3,960 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2034
U.S. locations
1226
States / cities
Birmingham, Alabama • Anchorage, Alaska • Fairbanks, Alaska + 809 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 28, 2026, 9:05 PM EDT
Active, not recruiting Phase 2 Interventional

Clinical Trial Assessing the Safety of Neoadjuvant Palbociclib in Combination With Endocrine Therapy

NCT05069038
View directory record Official record
Conditions
Breast Cancer
Interventions
Palbociclib 125mg
Drug
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older · Female only
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2032
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Sep 28, 2026, 9:05 PM EDT
Terminated Phase 1 Interventional

Lapatinib Ditosylate and Akt Inhibitor MK2206 in Treating Women With Metastatic Breast Cancer

NCT01281163
View directory record Official record
Conditions
Estrogen Receptor Negative, Estrogen Receptor Positive, HER2/Neu Positive, Progesterone Receptor Negative, Progesterone Receptor Positive, Recurrent Breast Carcinoma, Stage IV Breast Cancer
Interventions
Akt Inhibitor MK2206, Laboratory Biomarker Analysis, Lapatinib Ditosylate, Pharmacogenomic Study, Pharmacological Study
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
5
States / cities
New Haven, Connecticut • Boston, Massachusetts • Ann Arbor, Michigan + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 26, 2015 · Synced Sep 28, 2026, 9:05 PM EDT
Completed Phase 2 Interventional

Neoadjuvant Therapy With Herceptin and Taxol for Breast Cancer

NCT00136539
View directory record Official record
Conditions
Breast Cancer
Interventions
Herceptin, Taxol, Adriamycin, Cytoxan
Drug
Lead sponsor
Harold J. Burstein, MD, PhD
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2012
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 17, 2013 · Synced Sep 28, 2026, 9:05 PM EDT
Recruiting No phase listed Observational

Longitudinal Tumor Burden Quantification Using Circulating Tumor DNA in Metastatic Lobular Breast Cancer

NCT06666439
View directory record Official record
Conditions
Metastatic Invasive Lobular Carcinoma (mILC)
Interventions
circulating tumor DNA (ctDNA)
Diagnostic Test
Lead sponsor
Julia Foldi
Other
Eligibility
18 Years and older · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 19, 2026 · Synced Sep 28, 2026, 9:05 PM EDT
Completed Phase 2 Interventional

Preoperative Herceptin and Navelbine for Breast Cancer

NCT00148681
View directory record Official record
Conditions
Breast Cancer, Stage II Breast Cancer, Stage III Breast Cancer
Interventions
Herceptin, Navelbine, Doxorubicin, Cyclophosphamide, Paclitaxel
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2003
U.S. locations
3
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 14, 2019 · Synced Sep 28, 2026, 9:05 PM EDT
Terminated Phase 2 Interventional Results available

Phase II Study of Everolimus Beyond Progression

NCT02269670
View directory record Official record
Conditions
Estrogen Receptor-positive Breast Cancer, HER2-negative Breast Cancer, Progesterone Receptor-positive Breast Cancer, Recurrent Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer
Interventions
everolimus, anastrozole, letrozole, tamoxifen citrate, fulvestrant, megestrol acetate
Drug
Lead sponsor
Emory University
Other
Eligibility
19 Years and older · Female only
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
3
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 4, 2022 · Synced Sep 28, 2026, 9:05 PM EDT
Recruiting Phase 1Phase 2 Interventional

Rinatabart Sesutecan (Rina-S, PRO1184, GEN1184) for Advanced Solid Tumors (GCT1184-01/ PRO1184-001)

NCT05579366
View directory record Official record
Conditions
High Grade Epithelial Ovarian Cancer, High Grade Serous Ovarian Cancer, Primary Peritoneal Carcinoma, Fallopian Tube Cancer, Endometrial Cancer, Non-small Cell Lung Cancer, Epidermal Growth Factor Receptor (EGFR)-Mutated Non-Small Cell Lung Cancer (NSCLC), Mesothelioma, Breast Adenocarcinoma, Triple Negative Breast Cancer, Hormone Receptor-positive/Her2 Negative Breast Cancer, Platinum-resistant Ovarian Cancer (PROC), Platinum Sensitive Ovarian Cancer (PSOC), Primary Refractory Ovarian Cancer, Uterine Cancer
Interventions
Rina-S, Carboplatin, Bevacizumab, Pembrolizumab
Drug
Lead sponsor
Genmab
Industry
Eligibility
18 Years and older
Enrollment
884 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
37
States / cities
Phoenix, Arizona • Tucson, Arizona • Los Angeles, California + 32 more
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Sep 28, 2026, 9:05 PM EDT
Completed Phase 2 Interventional

A Study of Samuraciclib in Combination With Fulvestrant in Metastatic or Locally Advanced Breast Cancer in Adult Participants

NCT05963984
View directory record Official record
Conditions
Metastatic Breast Cancer, Locally Advanced Breast Cancer, Breast Cancer
Interventions
Samuraciclib, Fulvestrant
Drug
Lead sponsor
Carrick Therapeutics Limited
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
5
States / cities
Ocala, Florida • Baltimore, Maryland • Kansas City, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 25, 2025 · Synced Sep 28, 2026, 9:05 PM EDT
Completed Phase 2 Interventional Results available

Gemcitabine, Trastuzumab, and Pertuzumab in the Treatment of Metastatic HER2-Positive Breast Cancer After Prior Trastuzumab/Pertuzumab, or Pertuzumab Based Therapy

NCT02252887
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 23, 2026 · Synced Sep 28, 2026, 9:05 PM EDT
Completed Phase 2 Interventional Results available

Incidence and Severity of Diarrhea in Patients With HER2 Positive Breast Cancer Treated With Trastuzumab and Neratinib

NCT03094052
View directory record Official record
Conditions
HER2-positive Breast Cancer, Breast Adenocarcinoma, Stage II Breast Cancer AJCC v6 and v7, Stage IIA Breast Cancer AJCC v6 and v7, Stage IIB Breast Cancer AJCC v6 and v7, Stage III Breast Cancer AJCC v7, Stage IIIA Breast Cancer AJCC v7, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7
Interventions
Neratinib, Trastuzumab, Loperamide, Crofelemer, Diphenoxylate/Atropine
Drug · Biological
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 25, 2025 · Synced Sep 28, 2026, 9:05 PM EDT
Completed Phase 2 Interventional Results available

A Study of Tucatinib Plus Trastuzumab Deruxtecan in HER2+ Breast Cancer

NCT04539938
View directory record Official record
Conditions
HER2 Positive Breast Cancer
Interventions
tucatinib, trastuzumab deruxtecan
Drug
Lead sponsor
Seagen, a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
140
States / cities
Birmingham, Alabama • Tucson, Arizona • Alhambra, California + 92 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced Sep 28, 2026, 9:05 PM EDT
Active, not recruiting Phase 3 Interventional Results available

A Study of Tucatinib vs. Placebo in Combination With Ado-trastuzumab Emtansine (T-DM1) for Patients With Advanced or Metastatic HER2+ Breast Cancer

NCT03975647
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Sep 28, 2026, 9:05 PM EDT
Not listed Phase 2 Interventional

TPIV100 and Sargramostim for the Treatment of HER2 Positive, Stage II-III Breast Cancer in Patients With Residual Disease After Chemotherapy and Surgery

NCT04197687
View directory record Official record
Conditions
Breast Adenocarcinoma, Stage II Breast Cancer AJCC v6 and v7, Stage IIA Breast Cancer AJCC v6 and v7, Stage IIB Breast Cancer AJCC v6 and v7, Stage III Breast Cancer AJCC v7, Stage IIIA Breast Cancer AJCC v7, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7
Interventions
Multi-epitope HER2 Peptide Vaccine TPIV100, Pertuzumab, Placebo Administration, Sargramostim, Trastuzumab, Trastuzumab Emtansine
Biological · Other
Lead sponsor
Academic and Community Cancer Research United
Other
Eligibility
18 Years and older · Female only
Enrollment
480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
30
States / cities
Scottsdale, Arizona • Tucson, Arizona • Yuma, Arizona + 26 more
Source: ClinicalTrials.gov public record
Updated Dec 17, 2023 · Synced Sep 28, 2026, 9:05 PM EDT
Terminated Phase 1 Interventional

A Study of Poziotinib in Combination With T-DM1 in HER2-Positive Breast Cancer

NCT03429101
View directory record Official record
Conditions
Breast Cancer
Interventions
Poziotinib, T-DM1
Drug
Lead sponsor
Spectrum Pharmaceuticals, Inc
Industry
Eligibility
18 Years to 90 Years · Female only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
2
States / cities
Anaheim, California • Glendale, California
Source: ClinicalTrials.gov public record
Updated Jan 14, 2021 · Synced Sep 28, 2026, 9:05 PM EDT
Terminated Phase 1 Interventional

Copanlisib, Letrozole, and Palbociclib in Treating Patients With Hormone Receptor Positive HER2 Negative Stage I-IV Breast Cancer

NCT03128619
View directory record Official record
Conditions
Estrogen Receptor Positive, HER2/Neu Negative, Invasive Breast Carcinoma, Multifocal Breast Carcinoma, Postmenopausal, Progesterone Receptor Positive, Stage I Breast Cancer, Stage IA Breast Cancer, Stage IB Breast Cancer, Stage II Breast Cancer, Stage IIA Breast Cancer, Stage IIB Breast Cancer, Stage III Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer
Interventions
Biopsy of Breast, Copanlisib, Laboratory Biomarker Analysis, Letrozole, Palbociclib, Pharmacological Study
Procedure · Drug · Other
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
19 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 25, 2022 · Synced Sep 28, 2026, 9:05 PM EDT
Suspended Phase 3 Interventional

Testing Low Dose Tamoxifen for Invasive Breast Cancer, LoTam Trial

NCT06671912
View directory record Official record
Conditions
Anatomic Stage 0 Breast Cancer AJCC v8, Anatomic Stage 1 Breast Cancer AJCC v8, Anatomic Stage IIA Breast Cancer AJCC v8, Estrogen Receptor-Positive Breast Carcinoma, HER2-Negative Breast Carcinoma, Breast Ductal Carcinoma In Situ, Breast Lobular Carcinoma In Situ
Interventions
Anastrozole, Letrozole, Exemestane, Tamoxifen, Mammogram, Magnetic Resonance Imaging, Dual X-ray Absorptiometry, Biospecimen Collection, Questionnaire Administration
Drug · Procedure · Biological + 1 more
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
1,556 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
728
States / cities
Anchorage, Alaska • Gilbert, Arizona • Goodyear, Arizona + 559 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Sep 28, 2026, 9:05 PM EDT
Completed No phase listed Observational

TREATMENT AND MONITORING PATTERNS AND CLINICAL OUTCOMES IN PATIENTS RECEIVING PALBOCICLIB COMBINATION TREATMENT (WITH AI OR FULVESTRANT) FOR HR+/HER2- A/MBC IN A COMMUNITY ONCOLOGY SETTING.

NCT04498481
View directory record Official record
Conditions
Breast Cancer
Interventions
Not listed
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Sep 28, 2026, 9:05 PM EDT
Active, not recruiting Phase 2 Interventional Results available

ATOP TRIAL: T-DM1 in HER2 Positive Breast Cancer

NCT03587740
View directory record Official record
Conditions
Breast Cancer
Interventions
T-DM1
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
60 Years and older
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
14
States / cities
Duarte, California • Stamford, Connecticut • Boston, Massachusetts + 10 more
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 28, 2026, 9:05 PM EDT
Active, not recruiting Phase 1 Interventional

Testing the Addition of an Anti-cancer Drug, Berzosertib, to the Usual Treatment (Radiation Therapy) for Chemotherapy-Resistant Triple-Negative and Estrogen and/or Progesterone Receptor Positive, HER2 Negative Breast Cancer

NCT04052555
View directory record Official record
Conditions
Bilateral Breast Carcinoma, HER2-Negative Breast Carcinoma, Localized Breast Carcinoma, Recurrent Breast Carcinoma, Triple-Negative Breast Carcinoma
Interventions
Berzosertib, Biospecimen Collection, Quality-of-Life Assessment, Questionnaire Administration, Radiation Therapy
Drug · Procedure · Other + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
14
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Sacramento, California + 10 more
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Sep 28, 2026, 9:05 PM EDT
Completed Phase 1 Interventional

Interleukin-12, Paclitaxel, and Trastuzumab in Treating Patients With Solid Tumors

NCT00028535
View directory record Official record
Conditions
Male Breast Cancer, Recurrent Breast Cancer, Recurrent Endometrial Carcinoma, Recurrent Gastric Cancer, Recurrent Non-small Cell Lung Cancer, Recurrent Ovarian Epithelial Cancer, Recurrent Small Cell Lung Cancer
Interventions
trastuzumab, paclitaxel, recombinant interleukin-12
Biological · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2001
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 3, 2013 · Synced Sep 28, 2026, 9:05 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Trial of Fulvestrant, MK-0646, and Dasatinib for Metastatic Hormone Receptor-Positive HER2-Negative Breast Cancer

NCT00903006
View directory record Official record
Conditions
Breast Cancer
Interventions
Fulvestrant, MK-0646, Dasatinib
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 1, 2015 · Synced Sep 28, 2026, 9:05 PM EDT
Not listed Phase 1 Interventional

CAR-macrophages for the Treatment of HER2 Overexpressing Solid Tumors

NCT04660929
View directory record Official record
Conditions
HER2-positive, Adenocarcinoma, Bile Duct Cancer, Biliary Tract Cancer, Bladder Cancer, Breast Cancer, Breast Neoplasm, Carcinoma, Ductal, Carcinoma, Hepatocellular, Cancer, Lung Cancer, Non-Small-Cell, Carcinoma, Ovarian Epithelial, Carcinoma, Small Cell, Carcinoma, Squamous, Carcinoma, Transitional Cell, Colorectal Cancer, Esophagogastric Junction Neoplasms, Inflammatory Breast Cancer, Stomach Neoplasms, Malignant Neoplasms, Ovarian Neoplasms, Pancreatic Cancer, HER2-positive Solid Tumors, HER2-positive Breast Cancer, HER2-positive Gastric Cancer, HER-2 Protein Overexpression, HER-2 Gene Amplification, Prostate Cancer, Head and Neck Cancer, Endometrial Cancer, Lung Cancer, Small Cell
Interventions
CT-0508, Pembrolizumab
Biological
Lead sponsor
Carisma Therapeutics Inc
Industry
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
7
States / cities
Duarte, California • Chapel Hill, North Carolina • Portland, Oregon + 4 more
Source: ClinicalTrials.gov public record
Updated Dec 17, 2024 · Synced Sep 28, 2026, 9:05 PM EDT