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ClinicalTrials.gov public records Last synced Sep 25, 2026, 11:03 PM EDT

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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 Cancer Clear all
Completed Phase 2 Interventional Results available

TVB-2640 and Trastuzumab With Paclitaxel or Endocrine Therapy for Treatment of HER2 Positive Metastatic Breast Cancer

NCT03179904
View directory record Official record
Conditions
Advanced Breast Carcinoma, HER2-Positive Breast Carcinoma, Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, HER2-positive Breast Cancer
Interventions
Anastrozole, Denifanstat, Exemestane, Fulvestrant, Echocardiography, Letrozole, Paclitaxel, Trastuzumab, Computed Tomography, Magnetic Resonance Imaging, Biospecimen Collection, Biopsy
Drug · Procedure · Biological
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
3
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 25, 2026, 11:03 PM EDT
Terminated Phase 1Phase 2 Interventional Results available

Testing the Addition of an Anti-cancer Drug, Copanlisib, to the Usual Maintenance Treatment (Trastuzumab and Pertuzumab) After Initial Chemotherapy in a Phase Ib/II Trial for Advanced HER2 Positive Breast Cancer

NCT04108858
View directory record Official record
Conditions
Anatomic Stage IV Breast Cancer AJCC v8, HER2-Positive Breast Carcinoma, Metastatic Breast Carcinoma
Interventions
Copanlisib, Pertuzumab, Trastuzumab
Drug · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
5
States / cities
Los Angeles, California • Aurora, Colorado • Oklahoma City, Oklahoma + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Sep 25, 2026, 11:03 PM EDT
Active, not recruiting Phase 3 Interventional

Study of Alpelisib (BYL719) in Combination With Trastuzumab and Pertuzumab as Maintenance Therapy in Patients With HER2-positive Advanced Breast Cancer With a PIK3CA Mutation

NCT04208178
View directory record Official record
Conditions
Advanced HER2+Breast Cancer
Interventions
Alpelisib, Alpelisib matching Placebo, Trastuzumab, Pertuzumab
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
2
States / cities
Fayetteville, Arkansas • Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 17, 2026 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 2 Interventional Results available

Study to Compare Alisertib With Paclitaxel vs. Paclitaxel Alone in Metastatic or Locally Recurrent Breast Cancer

NCT02187991
View directory record Official record
Conditions
Breast Cancer, Breast Carcinoma, Breast Tumors, Malignant Neoplasm of Breast
Interventions
Paclitaxel, Alisertib
Drug
Lead sponsor
US Oncology Research
Industry
Eligibility
18 Years and older · Female only
Enrollment
169 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2024
U.S. locations
1
States / cities
Including Dallas and Austin, Texas
Source: ClinicalTrials.gov public record
Updated Oct 8, 2024 · Synced Sep 25, 2026, 11:03 PM EDT
Recruiting Early Phase 1 Interventional

Letrozole With and Without Simvastatin for the Treatment of Stage I-III Hormone Receptor Positive, HER2 Negative Breast Cancer

NCT05464810
View directory record Official record
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, HER2-Negative Breast Carcinoma, Hormone Receptor-Positive Breast Carcinoma, Invasive Breast Carcinoma
Interventions
Letrozole, Simvastatin
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
4
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Sep 25, 2026, 11:03 PM EDT
Terminated Phase 2 Interventional Results available

Phase 2 Study of Amcenestrant (SAR439859) Versus Physician's Choice in Locally Advanced or Metastatic ER-positive Breast Cancer

NCT04059484
View directory record Official record
Conditions
Breast Cancer Metastatic
Interventions
Amcenestrant, Fulvestrant, Anastrozole, Letrozole, Exemestane, Tamoxifen
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years and older
Enrollment
367 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
14
States / cities
Birmingham, Alabama • Bakersfield, California • Santa Monica, California + 11 more
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 2 Interventional Results available

Bevacizumab Given With Either Anastrozole or Fulvestrant With Trastuzumab for Postmenopausal Metastatic Breast Cancer

NCT00405938
View directory record Official record
Conditions
Breast Cancer, Breast Neoplasms
Interventions
Bevacizumab, Anastrozole, Fulvestrant
Drug
Lead sponsor
SCRI Development Innovations, LLC
Other
Eligibility
18 Years and older · Female only
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
11
States / cities
Fort Myers, Florida • Jacksonville, Florida • Orlando, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Nov 17, 2021 · Synced Sep 25, 2026, 11:03 PM EDT
Active, not recruiting Phase 1 Interventional

ELVN-002 With Trastuzumab +/- Chemotherapy in HER2+ Solid Tumors, Colorectal and Breast Cancer

NCT06328738
View directory record Official record
Conditions
HER2-positive Breast Cancer, HER2-positive Gastric Cancer, HER2 Positive Solid Tumors, HER2 Amplification, Colorectal Cancer
Interventions
ELVN-002, Trastuzumab, 5-Fluorouracil, Oxaliplatin, Capecitabine, Eribulin, paclitaxel, Leucovorin
Drug
Lead sponsor
Enliven Therapeutics
Industry
Eligibility
18 Years and older
Enrollment
275 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
3
States / cities
Plantation, Florida • St Louis, Missouri • Fairfax, Virginia
Source: ClinicalTrials.gov public record
Updated Nov 18, 2025 · Synced Sep 25, 2026, 11:03 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 25, 2026, 11:03 PM EDT
Terminated Phase 3 Interventional

Tesetaxel Plus Reduced Dose of Capecitabine vs. Capecitabine in HER2 Negative, HR Positive, LA/MBC

NCT03326674
View directory record Official record
Conditions
Breast Cancer
Interventions
Tesetaxel and Capecitabine, Capecitabine
Drug
Lead sponsor
Odonate Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
685 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
90
States / cities
Chandler, Arizona • Goodyear, Arizona • Tucson, Arizona + 81 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2021 · Synced Sep 25, 2026, 11:03 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 25, 2026, 11:03 PM EDT
Active, not recruiting Phase 3 Interventional Results available

A Study of Imlunestrant, Investigator's Choice of Endocrine Therapy, and Imlunestrant Plus Abemaciclib in Participants With ER+, HER2- Advanced Breast Cancer

NCT04975308
View directory record Official record
Conditions
Breast Neoplasms, Neoplasm Metastasis
Interventions
Imlunestrant, Exemestane, Fulvestrant, Abemaciclib
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
874 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
48
States / cities
Chandler, Arizona • Gilbert, Arizona • Greenbrae, California + 29 more
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Sep 25, 2026, 11:03 PM EDT
Recruiting Phase 2 Interventional

NeoTAILOR: ABiomarker-directed Approach to Guide Neoadjuvant Therapy for Patients With Stage II/III ER-positive, HER2-negative Breast Cancer

NCT05837455
View directory record Official record
Conditions
Breast Cancer, Cancer of the Breast
Interventions
VENTANA MIB-1 Ki67 assay, Oncotype DX® Recurrence Score, PAM50-based Prosigna breast cancer gene signature assay, Anastrozole, Combination anthracycline and/or taxane based treatment
Device · Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older · Female only
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 3 Interventional Results available

A Study To Evaluate the Efficacy and Safety Of Atezolizumab or Placebo in Combination With Neoadjuvant Doxorubicin + Cyclophosphamide Followed By Paclitaxel + Trastuzumab + Pertuzumab In Early Her2-Positive Breast Cancer

NCT03726879
View directory record Official record
Conditions
Breast Cancer
Interventions
Atezolizumab, Placebo, Doxorubicin, Cyclophosphamide, Paclitaxel, Trastuzumab, Pertuzumab, Trastuzumab Emtansine
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
454 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
3
States / cities
Kansas City, Missouri • New York, New York • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 4, 2024 · Synced Sep 25, 2026, 11:03 PM 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 Sep 25, 2026, 11:03 PM EDT
Completed Phase 2 Interventional Results available

A Study of Abemaciclib (LY2835219) In Participants With Previously Treated Breast Cancer That Has Spread

NCT02102490
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Abemaciclib
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older · Female only
Enrollment
132 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
27
States / cities
Sedona, Arizona • Tucson, Arizona • San Francisco, California + 22 more
Source: ClinicalTrials.gov public record
Updated Jan 20, 2020 · Synced Sep 25, 2026, 11:03 PM EDT
Active, not recruiting Phase 2 Interventional

PHESGO Maintenance After T-DXd Short Induction for HER2+ Unresectable Locally Recurrent or Metastatic Breast Cancer

NCT06172127
View directory record Official record
Conditions
HER2-positive Breast Cancer
Interventions
Trastuzumab deruxtecan, Phesgo 1,200 MG / 600 MG / 30,000 UNT Per 15 ML Injection, Phesgo 600 MG / 600 MG / 20,000 UNT in 10 mL Injection
Drug
Lead sponsor
MedSIR
Other
Eligibility
18 Years and older
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
2
States / cities
Boston, Massachusetts • New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 3 Interventional Results available

A Study of Ipatasertib in Combination With Paclitaxel as a Treatment for Participants With PIK3CA/AKT1/PTEN-Altered, Locally Advanced or Metastatic, Triple-Negative Breast Cancer or Hormone Receptor-Positive, HER2-Negative Breast Cancer

NCT03337724
View directory record Official record
Conditions
Breast Cancer
Interventions
Ipatasertib, Paclitaxel, Placebo
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
579 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
28
States / cities
La Jolla, California • Los Angeles, California • Newport Beach, California + 20 more
Source: ClinicalTrials.gov public record
Updated Mar 11, 2024 · Synced Sep 25, 2026, 11:03 PM EDT
Withdrawn Phase 2 Interventional

Radiation Omission in Patients With HER2 Overexpressing Tumors With Pathologic Complete Response

NCT05371860
View directory record Official record
Conditions
Breast Cancer, HER2-positive Breast Cancer
Interventions
Omit breast radiation
Other
Lead sponsor
Armando Giuliano
Other
Eligibility
40 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 2 Interventional Results available

Cardiac Safety Study in Patients With HER2 + Breast Cancer

NCT01904903
View directory record Official record
Conditions
HER2 Positive Breast Cancer, Left Ventricular Function Systolic Dysfunction
Interventions
Trastuzumab, Pertuzumab, Ado Trastuzumab Emtansine
Drug
Lead sponsor
Medstar Health Research Institute
Other
Eligibility
18 Years to 120 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2020
U.S. locations
2
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated May 9, 2022 · Synced Sep 25, 2026, 11:03 PM EDT
Terminated Phase 2 Interventional

Vaccine Therapy in Treating Patients With Stage IV Hormone Receptor Positive Breast Cancer

NCT01729884
View directory record Official record
Conditions
HER2-positive Breast Cancer, Male Breast Cancer, Recurrent Breast Cancer, Stage IV Breast Cancer
Interventions
HER-2/neu peptide vaccine
Biological
Lead sponsor
University of Washington
Other
Eligibility
19 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Apr 10, 2017 · Synced Sep 25, 2026, 11:03 PM EDT
Terminated Phase 3 Interventional Results available

A Study of Abemaciclib (LY2835219) Plus Hormone Therapy in Participants With Early Breast Cancer

NCT04752332
View directory record Official record
Conditions
Breast Neoplasms
Interventions
Abemaciclib, Standard Adjuvant ET, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
13
States / cities
Glendale, Arizona • Los Angeles, California • Hollywood, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 14, 2025 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 2 Interventional Results available

Diarrhea Prevention and Prophylaxis With Crofelemer in HER2 Positive Breast Cancer Patients

NCT02910219
View directory record Official record
Conditions
Breast Cancer
Interventions
Crofelemer
Drug
Lead sponsor
Sandra Swain
Other
Eligibility
18 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
4
States / cities
Washington D.C., District of Columbia • Baltimore, Maryland • Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Oct 23, 2022 · Synced Sep 25, 2026, 11:03 PM EDT
Terminated Phase 4 Interventional

Effect of HSD3B1 (1245C) Gene Mutation on Treatment of Stage I-III Breast Cancer

NCT05183828
View directory record Official record
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, Breast Adenocarcinoma, Invasive Breast Carcinoma of No Special Type
Interventions
Biospecimen Collection, Letrozole, Questionnaire Administration
Procedure · Drug · Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older · Female only
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Sep 25, 2026, 11:03 PM EDT