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Showing 1–24 of 290 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: HER-2 Positive Malignant Carcinoma of Breast Clear all
Recruiting Not applicable Interventional

Multicenter Trial for Eliminating Breast Cancer Surgery or Radiotherapy in Exceptional Responders to Neoadjuvant Systemic Therapy

NCT02945579
View directory record Official record
Conditions
Estrogen Receptor Negative, HER2 Positive Breast Carcinoma, HER2/Neu Negative, Invasive Breast Carcinoma, Progesterone Receptor Negative, Stage I Breast Cancer AJCC v7, Stage IA Breast Cancer AJCC v7, Stage IB Breast Cancer AJCC v7, Stage II Breast Cancer AJCC v6 and v7, Stage IIA Breast Cancer AJCC v6 and v7, Stage IIB Breast Cancer AJCC v6 and v7, Triple-Negative Breast Carcinoma
Interventions
Undergo EBRT, Laboratory Biomarker Analysis, Quality-of-Life Assessment, Questionnaire Administration, Partial Breast Irradiation
Radiation · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
30 Years and older · Female only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2028
U.S. locations
8
States / cities
Gilbert, Arizona • Jacksonville, Florida • Honolulu, Hawaii + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 8, 2026 · Synced Jul 23, 2026, 6:16 AM EDT
Active, not recruiting No phase listed Observational Results available

A Study of Limited Heart Monitoring During Non-anthracycline Trastuzumab-based Therapy in Breast Cancer Patients

NCT03983382
View directory record Official record
Conditions
Breast Cancer
Interventions
Left Ventricular Ejection Fraction
Diagnostic Test
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
8
States / cities
Hartford, Connecticut • Basking Ridge, New Jersey • Middletown, New Jersey + 5 more
Source: ClinicalTrials.gov public record
Updated May 14, 2026 · Synced Jul 23, 2026, 6:16 AM EDT
Completed Phase 2 Interventional Results available

Lux-Breast 3; Afatinib Alone or in Combination With Vinorelbine in Patients With Human Epidermal Growth Factor Receptor 2 (HER2) Positive Breast Cancer Suffering From Brain Metastases

NCT01441596
View directory record Official record
Conditions
Breast Neoplasms, Neoplasm Metastasis
Interventions
Vinorelbine, Investigator's choice of treatment, afatinib
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older · Female only
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
6
States / cities
Bakersfield, California • Fullerton, California • Los Angeles, California + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 6, 2015 · Synced Jul 23, 2026, 6:16 AM EDT
Terminated Phase 2 Interventional Results available

Tucatinib, Trastuzumab, and Capecitabine for the Treatment of HER2+ LMD

NCT03501979
View directory record Official record
Conditions
Metastatic Breast Cancer, Leptomeningeal Disease
Interventions
Tucatinib, Trastuzumab, Capecitabine
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
9
States / cities
Birmingham, Alabama • San Francisco, California • Washington D.C., District of Columbia + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 28, 2025 · Synced Jul 23, 2026, 6:16 AM EDT
Not listed Phase 3 Interventional

A Study of AC Followed by a Combination of Paclitaxel Plus Trastuzumab or Lapatinib or Both Given Before Surgery to Patients With Operable HER2 Positive Invasive Breast Cancer

NCT00486668
View directory record Official record
Conditions
Invasive Breast Cancer
Interventions
doxorubicin, cyclophosphamide, paclitaxel, trastuzumab, lapatinib
Drug
Lead sponsor
NSABP Foundation Inc
Network
Eligibility
18 Years and older · Female only
Enrollment
529 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
103
States / cities
Mobile, Alabama • La Jolla, California • Long Beach, California + 88 more
Source: ClinicalTrials.gov public record
Updated Jun 5, 2016 · Synced Jul 23, 2026, 6:16 AM EDT
Completed Phase 1Phase 2 Interventional Results available

A Study of Trastuzumab Emtansine (Trastuzumab-MCC-DM1, T-DM1) in Combination With Pertuzumab Administered to Patients With Human Epidermal Growth Factor Receptor-2 (HER2)-Positive Locally Advanced or Metastatic Breast Cancer Who Have Previously Received Trastuzumab

NCT00875979
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Trastuzumab emtansine [Kadcyla] 3.0 mg/kg, Trastuzumab emtansine [Kadcyla] 3.6 mg/kg, Pertuzumab 420 mg
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
10
States / cities
Boca Raton, Florida • Deerfield Beach, Florida • Maywood, Illinois + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 23, 2013 · Synced Jul 23, 2026, 6:16 AM EDT
Withdrawn Phase 2 Interventional

Breast-Conserving Surgery Followed by Radiation Therapy With MRI-Detected Stage I or Stage II Breast Cancer

NCT01100489
View directory record Official record
Conditions
Ductal Breast Carcinoma in Situ, Estrogen Receptor-negative Breast Cancer, Estrogen Receptor-positive Breast Cancer, HER2-negative Breast Cancer, HER2-positive Breast Cancer, Invasive Ductal Breast Carcinoma, Invasive Lobular Breast Carcinoma, Male Breast Cancer, Medullary Ductal Breast Carcinoma With Lymphocytic Infiltrate, Mucinous Ductal Breast Carcinoma, Papillary Ductal Breast Carcinoma, Progesterone Receptor-negative Breast Cancer, Progesterone Receptor-positive Breast Cancer, Stage I Breast Cancer, Stage II Breast Cancer, Tubular Ductal Breast Carcinoma
Interventions
external beam radiation therapy, questionnaire administration, therapeutic conventional surgery
Radiation · Other · Procedure
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
3
States / cities
Cleveland, Ohio • Orange, Ohio • Westlake, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 7, 2011 · Synced Jul 23, 2026, 6:16 AM EDT
Recruiting Phase 2 Interventional

Correlation of Clinical Response to Pathologic Response in Patients With Early Breast Cancer

NCT05020860
View directory record Official record
Conditions
Breast Cancer, Breast Neoplasm, Breast Cancer Female, Breast Cancer Invasive, Breast Cancer Stage II, Breast Cancer Stage III, Triple Negative Breast Cancer, Hormone Receptor-positive Breast Cancer, HER2-positive Breast Cancer, Triple Negative Breast Neoplasms, Estrogen Receptor-positive Breast Cancer
Interventions
Paclitaxel, Carboplatin, Trastuzumab, Pertuzumab, Doxorubicin, Cyclophosphamide, Pembrolizumab, Pertuzumab/Trastuzumab/Hyaluronidase-zzxf
Drug
Lead sponsor
Baylor Breast Care Center
Other
Eligibility
18 Years and older
Enrollment
185 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
2
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 26, 2025 · Synced Jul 23, 2026, 6:16 AM EDT
Terminated Phase 2 Interventional

HER2HEART-US: Prevention of Cardiotoxicity in Breast Cancer Patients Receiving HER2-directed Therapy

NCT06844669
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Jul 23, 2026, 6:16 AM EDT
Terminated Phase 1 Interventional

A Study to Assess CLBR001+ABBV-461 in Subjects With Locally Advanced or Metastatic Breast Cancer

NCT06878248
View directory record Official record
Conditions
Breast Cancer Metastatic, Locally Advanced Breast Cancer (LABC), Malignant Neoplasm of Breast, Triple Negative Breast Cancer (TNBC), Hormone Receptor-Positive Breast Cancer, HER2 + Breast Cancer
Interventions
Two Component Product CLBR001 + ABBV-461
Biological
Lead sponsor
Calibr, a division of Scripps Research
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
5
States / cities
Augusta, Georgia • Indianapolis, Indiana • Buffalo, New York + 2 more
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Jul 23, 2026, 6:16 AM EDT
Withdrawn Phase 1Phase 2 Interventional

Study of NUV-422 in Combination With Fulvestrant in Patients With HR+HER2- aBC

NCT05191004
View directory record Official record
Conditions
Advanced Breast Cancer, Metastatic Breast Cancer, Breast Cancer, Breast Carcinoma, Cancer of the Breast, Cancer of Breast, Malignant Tumor of Breast, Breast Tumor
Interventions
NUV-422, Fulvestrant
Drug
Lead sponsor
Nuvation Bio Inc.
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
5
States / cities
Anaheim, California • Fountain Valley, California • Canton, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 10, 2023 · Synced Jul 23, 2026, 6:16 AM EDT
Completed Phase 2 Interventional Results available

Phase 2 Trial of Pertuzumab and Trastuzumab With Weekly Paclitaxel and Chemotherapy for HER2 Positive Breast Cancer

NCT01855828
View directory record Official record
Conditions
Her2-Positive Breast Cancer
Interventions
Pertuzumab, Trastuzumab, Paclitaxel, 5-fluorouracil, Epirubicin, Cyclophosphamide
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 30, 2020 · Synced Jul 23, 2026, 6:16 AM EDT
Active, not recruiting No phase listed Observational

Study of Cardiopulmonary Exercise Testing in Women Who Have HER2-Positive Breast Cancer With Mild Cardiotoxicity

NCT05036252
View directory record Official record
Conditions
Breast Cancer, HER2-positive Breast Cancer, HER2-positive Metastatic Breast Cancer, Breast Cancer Stage I, Breast Cancer Stage II, Breast Cancer Stage III, Breast Cancer Stage IV, Cardiotoxicity
Interventions
Cardiopulmonary Exercise Test, Echocardiogram, Echocardiography
Diagnostic Test
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 29, 2025 · Synced Jul 23, 2026, 6:16 AM EDT
Active, not recruiting Phase 2 Interventional Results available

A Study to Evaluate Enfortumab Vedotin in Subjects With Locally Advanced or Metastatic Malignant Solid Tumors (EV-202)

NCT04225117
View directory record Official record
Conditions
Locally Advanced or Metastatic Malignant Solid Tumors
Interventions
enfortumab vedotin, pembrolizumab
Drug
Lead sponsor
Astellas Pharma Global Development, Inc.
Industry
Eligibility
18 Years and older
Enrollment
329 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
29
States / cities
Tucson, Arizona • San Francisco, California • Aurora, Colorado + 23 more
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Jul 23, 2026, 6:16 AM EDT
Terminated Phase 1 Interventional

A Study of XMT-2056 in Advanced/Recurrent Solid Tumors That Express HER2

NCT05514717
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Jul 23, 2026, 6:16 AM EDT
Withdrawn Phase 1Phase 2 Interventional

Monitoring Early Response to Targeted Therapy in Stage IV HER2+ Breast Cancer Patients With Advanced PET/MR Imaging

NCT04273555
View directory record Official record
Conditions
HER2-positive Breast Cancer
Interventions
[18F]-FDG
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 75 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Jul 23, 2026, 6:16 AM EDT
Terminated Phase 2 Interventional

Efficacy and Safety of IPI-504 With Trastuzumab Pretreated, Locally Advanced or Metastatic HER2 Positive Breast Cancer

NCT00817362
View directory record Official record
Conditions
Breast Cancer, HER2 Positive Breast Cancer, Metastatic Breast Cancer, Cancer of the Breast
Interventions
IPI-504, Trastuzumab
Drug
Lead sponsor
Infinity Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
10
States / cities
Palm Springs, California • Boca Raton, Florida • Davie, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 10, 2012 · Synced Jul 23, 2026, 6:16 AM EDT
Recruiting Phase 3 Interventional

S1501 Dual Observational and Randomized Cohort Study of Patients With Metastatic HER-2+ Breast Cancer at Risk of Cardiac Toxicity

NCT03418961
View directory record Official record
Conditions
Cardiotoxicity, HER2/Neu Positive, Metastatic Malignant Neoplasm in the Brain, Recurrent Breast Carcinoma, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Carvedilol, Laboratory Biomarker Analysis, Patient Observation
Drug · Other
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
18 Years and older
Enrollment
491 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
577
States / cities
Anchorage, Alaska • Fairbanks, Alaska • Hot Springs, Arkansas + 375 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced Jul 23, 2026, 6:16 AM EDT
Terminated Phase 2 Interventional Results available

Trastuzumab and Ixabepilone in Treating Women With HER2-Positive Metastatic Breast Cancer

NCT00079326
View directory record Official record
Conditions
HER2-positive Breast Cancer, Recurrent Breast Cancer, Stage IV Breast Cancer
Interventions
trastuzumab, ixabepilone, laboratory biomarker analysis
Biological · Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 1, 2014 · Synced Jul 23, 2026, 6:16 AM EDT
Terminated Phase 2 Interventional Accepts healthy volunteers

Immune Response and Potential Booster for Patients Who Have Received HER2-pulsed DC1

NCT03630809
View directory record Official record
Conditions
Breast Cancer, HER2-positive Breast Cancer, HER-2 Gene Amplification, HER2 Positive Breast Carcinoma, HER-2 Protein Overexpression, Breast Cancer, Male, Breast Cancer Female
Interventions
HER2 DC1 Vaccine
Biological
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Apr 24, 2022 · Synced Jul 23, 2026, 6:16 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Capecitabine 7/7 Schedule With Neratinib in Patients With Metastatic HER2-Positive Breast Cancer

NCT03377387
View directory record Official record
Conditions
Breast Cancer
Interventions
Capecitabine, Neratinib, EORTC QLQ - BR23, EQ-5D-5L, EORTC QLQ-C30
Drug · Behavioral
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
10
States / cities
Hartford, Connecticut • Miami, Florida • Basking Ridge, New Jersey + 7 more
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Jul 23, 2026, 6:16 AM EDT
Recruiting Phase 2 Interventional

Trial of Pre-operative Neratinib and Endocrine Therapy With Trastuzumab in ER-Positive, HER-2 Positive Breast Cancers

NCT04886531
View directory record Official record
Conditions
Breast Cancer, HER2-positive Breast Cancer, ER Positive Breast Cancer, PR-Positive Breast Cancer
Interventions
Neratinib, Letrozole (L) or Anastrozole (A), Trastuzumab
Drug
Lead sponsor
Ruth O'Regan
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
4
States / cities
Chicago, Illinois • Rochester, New York • Hershey, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Jul 23, 2026, 6:16 AM EDT
Completed Phase 1Phase 2 Interventional Results available

An Open-Label, Phase Ib/II Clinical Trial Of Cdk 4/6 Inhibitor, Ribociclib (Lee011), In Combination With Trastuzumab Or T-Dm1 For Advanced/Metastatic Her2-Positive Breast Cancer.

NCT02657343
View directory record Official record
Conditions
Breast Cancer
Interventions
Ribociclib, T-DM1, Trastuzumab, Fulvestrant
Drug
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 31, 2022 · Synced Jul 23, 2026, 6:16 AM EDT
Completed Phase 1Phase 2 Interventional

Vaccine Therapy in Combination With Rintatolimod and/or Sargramostim in Treating Patients With Stage II-IV HER2-Positive Breast Cancer

NCT01355393
View directory record Official record
Conditions
HER2-positive Breast Cancer, Male Breast Cancer, Recurrent Breast Cancer, Stage II Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer
Interventions
HER-2/neu peptide vaccine, sargramostim, rintatolimod
Biological · Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2011
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 9, 2020 · Synced Jul 23, 2026, 6:16 AM EDT