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ClinicalTrials.gov public records Last synced Jul 21, 2026, 9:31 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: HER-2 Positive Breast Cancer Clear all
Active, not recruiting Phase 3 Interventional Results available

Tamoxifen Citrate, Letrozole, Anastrozole, or Exemestane With or Without Chemotherapy in Treating Patients With Invasive RxPONDER Breast Cancer

NCT01272037
View directory record Official record
Conditions
Breast Ductal Carcinoma In Situ, Invasive Breast Carcinoma, Multicentric Breast Carcinoma, Multifocal Breast Carcinoma, Synchronous Bilateral Breast Carcinoma
Interventions
Anastrozole, Exemestane, Laboratory Biomarker Analysis, Letrozole, Quality-of-Life Assessment, Systemic Chemotherapy, Tamoxifen Citrate
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
5,018 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2027
U.S. locations
1436
States / cities
Anniston, Alabama • Birmingham, Alabama • Mobile, Alabama + 882 more
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Phase 1 Interventional

Study of LEE011 With Fulvestrant and BYL719 or BKM120 in Advanced Breast Cancer

NCT02088684
View directory record Official record
Conditions
Breast Cancer
Interventions
LEE011, BYL719, fulvestrant, BKM120
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older · Female only
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
3
States / cities
Birmingham, Alabama • Boston, Massachusetts • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 16, 2020 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Phase 1 Interventional

Safety Study of MGAH22 in HER2-positive Carcinomas

NCT01148849
View directory record Official record
Conditions
Breast Cancer, Gastric Cancer
Interventions
margetuximab
Biological
Lead sponsor
MacroGenics
Industry
Eligibility
18 Years and older
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2022
U.S. locations
2
States / cities
Bethesda, Maryland • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 25, 2025 · Synced Jul 21, 2026, 9:31 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 Jul 21, 2026, 9:31 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 Jul 21, 2026, 9:31 PM EDT
Active, not recruiting Phase 1 Interventional

DS8201a and Pembrolizumab in Participants With Locally Advanced/Metastatic Breast or Non-Small Cell Lung Cancer

NCT04042701
View directory record Official record
Conditions
Breast Cancer, Non-small Cell Lung Carcinoma
Interventions
Trastuzumab deruxtecan (DS-8201a), Pembrolizumab
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
10
States / cities
San Francisco, California • New Haven, Connecticut • Jacksonville, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Nov 17, 2025 · Synced Jul 21, 2026, 9:31 PM EDT
Terminated No phase listed Observational

Multiparametric MRI for Assessing Breast Cancer Response to Anti-HER2 Therapy

NCT03738553
View directory record Official record
Conditions
HER2-positive Breast Cancer
Interventions
MRI, Trastuzumab
Device · Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2026
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated May 3, 2026 · Synced Jul 21, 2026, 9:31 PM EDT
Active, not recruiting No phase listed Observational

Genetic Analysis in Blood and Tumor Samples From Patients With Advanced or Metastatic Estrogen Receptor Positive and HER2 Negative Breast Cancer Receiving Palbociclib and Endocrine Therapy

NCT03281902
View directory record Official record
Conditions
Advanced Breast Carcinoma, Locally Advanced Breast Carcinoma, Metastatic Breast Carcinoma, Recurrent Breast Carcinoma, Stage III Breast Cancer AJCC v7, Stage IIIA Breast Cancer AJCC v7, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Biopsy, Biospecimen Collection, Laboratory Biomarker Analysis
Procedure · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2028
U.S. locations
3
States / cities
Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Jul 21, 2026, 9:31 PM EDT
Active, not recruiting No phase listed Observational

Comparison of the Breast Tumor Microenvironment

NCT03165487
View directory record Official record
Conditions
Triple Negative Breast Cancer, Hormone Receptor Positive Malignant Neoplasm of Breast
Interventions
Breast tissue collection, Blood sample collection
Other
Lead sponsor
Columbia University
Other
Eligibility
50 Years and older · Female only
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 21, 2025 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Phase 1 Interventional

Phase I Study LJM716 Combined With Trastuzumab in Patients With HER2 Overexpressing Metastatic Breast or Gastric Cancer

NCT01602406
View directory record Official record
Conditions
Advanced HER2-positive Breast Cancer or Gastric Cancer
Interventions
LJM716, Trastuzumab
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
3
States / cities
Boston, Massachusetts • Chapel Hill, North Carolina • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 18, 2020 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Phase 1 Interventional

ACE1702 in Subjects With Advanced or Metastatic HER2-expressing Solid Tumors

NCT04319757
View directory record Official record
Conditions
Locally Advanced Solid Tumor, Metastatic Cancer, Solid Tumor, HER2-positive Gastric Cancer, HER2-positive Metastatic Breast Cancer
Interventions
ACE1702, Cyclophosphamide, Fludarabine
Drug
Lead sponsor
Acepodia Biotech, Inc.
Industry
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
2
States / cities
Chicago, Illinois • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 4, 2024 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Trial of H3B-6545, in Women With Locally Advanced or Metastatic Estrogen Receptor-positive, HER2 Negative Breast Cancer

NCT03250676
View directory record Official record
Conditions
Breast Neoplasms, Breast Cancer, Estrogen-receptor Positive Breast Cancer, Cancer, Breast, Breast Cancer Female, Breast Adenocarcinoma, Estrogen Receptor Positive Tumor, ER Positive
Interventions
H3B-6545
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
151 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
23
States / cities
Goodyear, Arizona • Los Angeles, California • San Francisco, California + 18 more
Source: ClinicalTrials.gov public record
Updated Feb 24, 2025 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Phase 2 Interventional Results available

Ribociclib and Aromatase Inhibitor in Treating Older Participants With Hormone Receptor Positive Metastatic Breast Cancer

NCT03477396
View directory record Official record
Conditions
Estrogen Receptor and/or Progesterone Receptor Positive, HER2/Neu Negative, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Aromatase Inhibitor, Laboratory Biomarker Analysis, Pharmacokinetic Study, Questionnaire Administration, Ribociclib
Drug · Other
Lead sponsor
City of Hope Medical Center
Other
Eligibility
70 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
9
States / cities
Corona, California • Duarte, California • Lancaster, California + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 19, 2024 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of Giredestrant Plus Palbociclib Compared With Anastrozole Plus Palbociclib for Postmenopausal Women With Estrogen Receptor-Positive and HER2-Negative Untreated Early Breast Cancer (coopERA Breast Cancer)

NCT04436744
View directory record Official record
Conditions
Early Breast Cancer
Interventions
Giredestrant, Anastrozole, Palbociclib, Surgery
Drug · Procedure
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older · Female only
Enrollment
221 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
10
States / cities
Burbank, California • Laguna Hills, California • San Luis Obispo, California + 7 more
Source: ClinicalTrials.gov public record
Updated Feb 1, 2023 · Synced Jul 21, 2026, 9:31 PM EDT
Recruiting Phase 1 Interventional

Testing the Safety of the Combination of Anti-Cancer Drugs CX-5461 (Pidnarulex) and Trastuzumab Deruxtecan (T-DXd) for Human Epidermal Growth Factor Receptor 2 (HER2)-Positive Solid Tumors and Breast Cancer

NCT07137416
View directory record Official record
Conditions
Anatomic Stage III Breast Cancer AJCC v8, Anatomic Stage IV Breast Cancer AJCC v8, Invasive Breast Carcinoma, Locally Advanced Breast Carcinoma, Metastatic Breast Carcinoma, Metastatic HER2-Low Breast Carcinoma, Metastatic HER2-Positive Breast Carcinoma, Metastatic Hormone Receptor-Positive Breast Carcinoma, Metastatic Malignant Solid Neoplasm, Metastatic Triple-Negative Breast Carcinoma, Unresectable Breast Carcinoma, Unresectable HER2-Low Breast Carcinoma, Unresectable HER2-Positive Breast Carcinoma, Unresectable Hormone Receptor-Positive Breast Carcinoma, Unresectable Malignant Solid Neoplasm, Unresectable Triple-Negative Breast Carcinoma
Interventions
Biopsy Procedure, Biospecimen Collection, Echocardiography Test, Multigated Acquisition Scan, Pidnarulex, Radiologic Imaging Procedure, Trastuzumab Deruxtecan
Procedure · Drug · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
Boston, Massachusetts • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Jul 21, 2026, 9:31 PM EDT
Recruiting Phase 2 Interventional

A Study of Imlunestrant (LY3484356) in Premenopausal Women With Estrogen Receptor-Positive (ER+) Human Epidermal Growth Factor Receptor 2 Negative (HER2-) Early Breast Cancer

NCT07287098
View directory record Official record
Conditions
Breast Neoplasms
Interventions
Imlunestrant, Goserelin, Tamoxifen 20 mg
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older · Female only
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
29
States / cities
Birmingham, Alabama • Chandler, Arizona • Los Angeles, California + 23 more
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Jul 21, 2026, 9:31 PM EDT
Terminated Phase 2 Interventional Results available

Oral SM-88 in Patients With Metastatic HR+/HER2- Breast Cancer

NCT04720664
View directory record Official record
Conditions
Breast Cancer, Metastatic Breast Cancer, Hormone Receptor Positive Breast Carcinoma
Interventions
SM-88
Drug
Lead sponsor
Georgetown University
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
5
States / cities
Washington D.C., District of Columbia • Baltimore, Maryland • Hackensack, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 27, 2023 · Synced Jul 21, 2026, 9:31 PM 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 21, 2026, 9:31 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional

A Phase I/II, Dose Finding and Optimization Study of [177Lu]Lu-NeoB in Combination With Capecitabine in Patients With GRPR+, ER+, HER2- Metastatic Breast Cancer After Progression on Previous Endocrine Therapy in Combination With a CDK4/6 Inhibitor.

NCT06247995
View directory record Official record
Conditions
Breast Cancer
Interventions
[68Ga]Ga-NeoB, [177Lu]Lu-NeoB, Capecitabine
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2031
U.S. locations
5
States / cities
Los Angeles, California • Newport Beach, California • Rochester, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Jul 21, 2026, 9:31 PM EDT
Completed No phase listed Observational

Assessment of Candidate Protein Expression in Breast Cancer Specimens

NCT00918892
View directory record Official record
Conditions
Breast Cancer
Interventions
gene expression analysis, immunohistochemistry staining method, laboratory biomarker analysis
Genetic · Other
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
Not listed
Enrollment
460 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 31, 2022 · Synced Jul 21, 2026, 9:31 PM EDT
Completed Phase 3 Interventional Results available

A Study of Trastuzumab Emtansine (T-DM1) Plus Pertuzumab/Pertuzumab Placebo Versus Trastuzumab [Herceptin] Plus a Taxane in Participants With Metastatic Breast Cancer (MARIANNE)

NCT01120184
View directory record Official record
Conditions
Breast Cancer
Interventions
docetaxel, paclitaxel, pertuzumab, pertuzumab-placebo, trastuzumab [Herceptin], trastuzumab emtansine
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
1,095 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
62
States / cities
Little Rock, Arkansas • La Jolla, California • Montebello, California + 55 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2024 · Synced Jul 21, 2026, 9:31 PM EDT
Recruiting Phase 1 Interventional

A Study of AND019 in Women With ER Positive HER2 Negative Advanced or Metastatic Breast Cancer

NCT05187832
View directory record Official record
Conditions
Advanced or Metastatic Breast Cancer
Interventions
AND019 PO QD
Drug
Lead sponsor
Kind Pharmaceuticals LLC
Industry
Eligibility
18 Years and older · Female only
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Jul 21, 2026, 9:31 PM EDT
Recruiting Phase 2 Interventional

Study of HER2 Directed Dendritic Cell (DC1) Vaccine + Weekly Paclitaxel, Trastuzumab & Pertuzumab

NCT05325632
View directory record Official record
Conditions
HER2-positive Breast Cancer
Interventions
HER-2 pulsed DC1, Trastuzumab, Pertuzumab, Paclitaxel, Resection surgery
Biological · Drug · Procedure
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Jul 21, 2026, 9:31 PM EDT
Terminated Phase 2 Interventional Results available

Agatolimod and Trastuzumab in Treating Patients With Locally Advanced or Metastatic Breast Cancer

NCT00824733
View directory record Official record
Conditions
Breast Cancer
Interventions
Trastuzumab, PF03512676, Correlative Studies
Drug · Other
Lead sponsor
Bhuvaneswari Ramaswamy
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 13, 2016 · Synced Jul 21, 2026, 9:31 PM EDT