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ClinicalTrials.gov public records Last synced Oct 10, 2026, 1:52 AM EDT

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Showing 25–48 of 83 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Early Stage HER2-Positive Breast Carcinoma Clear all
Recruiting Phase 3 Interventional

A Study of Elacestrant Versus Standard Endocrine Therapy in Women and Men With ER+,HER2-, Early Breast Cancer With High Risk of Recurrence

NCT06492616
View directory record Official record
Conditions
Breast Cancer
Interventions
Elacestrant, Anastrozole, Letrozole, Exemestane, Tamoxifen
Drug
Lead sponsor
Stemline Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
4,220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2032
U.S. locations
176
States / cities
Daphne, Alabama • Chandler, Arizona • Gilbert, Arizona + 139 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2026 · Synced Oct 10, 2026, 1:52 AM EDT
Recruiting Phase 2 Interventional

A Phase 2 Single-Arm Open-Label Pilot Trial Evaluating Zanidatamab (ZW25) in Patients With Early Stage HER2/Neu Positive (HER2+) Breast Cancer (BC)

NCT05035836
View directory record Official record
Conditions
Breast Cancer, HER2-positive
Interventions
Zanidatamab, Letrozole, Tamoxifen
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Oct 10, 2026, 1:52 AM EDT
Terminated No phase listed Observational

Gut and Tumor Microbiome in Patients With Early Stage (II-III), Locally Advanced or Advanced ER-positive and HER2-negative Breast Cancer.

NCT06126003
View directory record Official record
Conditions
Breast Cancer
Interventions
Observation
Other
Lead sponsor
BioCorteX Inc
Industry
Eligibility
18 Years to 85 Years · Female only
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
6
States / cities
Decatur, Illinois • Las Vegas, Nevada • Belleville, New Jersey + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2024 · Synced Oct 10, 2026, 1:52 AM EDT
Completed Phase 2 Interventional Results available

A Neoadjuvant Study of Abemaciclib (LY2835219) in Postmenopausal Women With Hormone Receptor Positive, HER2 Negative Breast Cancer

NCT02441946
View directory record Official record
Conditions
Breast Cancer, Hormone Receptor Positive Tumor, Early-Stage Breast Carcinoma
Interventions
Abemaciclib, Loperamide, Anastrozole
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older · Female only
Enrollment
224 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
27
States / cities
Bakersfield, California • La Jolla, California • Los Angeles, California + 23 more
Source: ClinicalTrials.gov public record
Updated Jun 17, 2020 · Synced Oct 10, 2026, 1:52 AM EDT
Active, not recruiting Phase 3 Interventional

Study of Pembrolizumab (MK-3475) Versus Placebo in Combination With Neoadjuvant Chemotherapy & Adjuvant Endocrine Therapy in the Treatment of Early-Stage Estrogen Receptor-Positive, Human Epidermal Growth Factor Receptor 2-Negative (ER+/HER2-) Breast Cancer (MK-3475-756/KEYNOTE-756)

NCT03725059
View directory record Official record
Conditions
Breast Cancer
Interventions
Pembrolizumab (K), Placebo (P), Paclitaxel (X), Doxorubicin (A), Epirubicin (E), Cyclophosphamide (C), Endocrine therapy, Radiation therapy, Surgery
Biological · Drug · Radiation + 1 more
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
1,240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2031
U.S. locations
45
States / cities
Daphne, Alabama • Goodyear, Arizona • Tucson, Arizona + 39 more
Source: ClinicalTrials.gov public record
Updated Jul 11, 2025 · Synced Oct 10, 2026, 1:52 AM EDT
Recruiting Phase 2 Interventional

Ph2 Study for Optimization of Adjunct Systemic Therapy in HER2+ Patients, MolecularPCR Trial

NCT07407920
View directory record Official record
Conditions
Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Early Stage HER2-Positive Breast Carcinoma, Early Stage Triple-Negative Breast Carcinoma
Interventions
Biospecimen Collection, Hormone Therapy, Pembrolizumab, Pertuzumab, Trastuzumab
Procedure · Drug · Biological
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 24, 2026 · Synced Oct 10, 2026, 1:52 AM EDT
Completed Phase 2 Interventional Results available

Trastuzumab in Treating Older Women With Early-Stage Breast Cancer

NCT00796978
View directory record Official record
Conditions
Breast Cancer
Interventions
trastuzumab, laboratory biomarker analysis, adjuvant therapy, quality-of-life assessment
Biological · Other · Procedure
Lead sponsor
Cynthia Owusu, MD
Other
Eligibility
60 Years and older · Female only
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2020
U.S. locations
11
States / cities
Miami, Florida • Winston-Salem, North Carolina • Cleveland, Ohio + 3 more
Source: ClinicalTrials.gov public record
Updated May 1, 2024 · Synced Oct 10, 2026, 1:52 AM 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 2, 2026 · Synced Oct 10, 2026, 1:52 AM EDT
Not yet recruiting Phase 2 Interventional

De-EscaLaTion of Aromatase Inhibitor Therapy: A Randomized Phase II Study of De-escalated Letrozole in Hormone Receptor-Positive Early Breast Cancer

NCT07866430
View directory record Official record
Conditions
Brest Cancer ER+ and HER2 Negative
Interventions
Letrozole
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years to 59 Years · Female only
Enrollment
144 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Oct 8, 2026 · Synced Oct 10, 2026, 1:52 AM EDT
Completed Phase 2 Interventional Results available

Paclitaxel With Trastuzumab and Lapatinib in HER2-Positive Early Stage Breast Cancer

NCT01827163
View directory record Official record
Conditions
HER2-Positive Early Stage Breast Cancer
Interventions
Paclitaxel, Trastuzumab, Lapatinib, Pegfilgrastim
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
4
States / cities
Basking Ridge, New Jersey • Commack, New York • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 18, 2019 · Synced Oct 10, 2026, 1:52 AM EDT
Terminated Phase 2 Interventional Results available

Radiation Therapy in Treating Post-Menopausal Women With Early Stage Breast Cancer Undergoing Surgery

NCT01754519
View directory record Official record
Conditions
Ductal Breast Carcinoma In Situ, Estrogen Receptor Negative, Estrogen Receptor Positive, HER2/Neu Negative, Invasive Cribriform Breast Carcinoma, Invasive Ductal Carcinoma, Not Otherwise Specified, Lobular Breast Carcinoma In Situ, Mucinous Breast Carcinoma, Papillary Breast Carcinoma, Progesterone Receptor Positive, Stage I Breast Cancer, Stage II Breast Cancer, Stage IIIA Breast Cancer, Stage IIIC Breast Cancer, Tubular Breast Carcinoma
Interventions
Therapeutic Conventional Surgery, Radiation Therapy, Laboratory Biomarker Analysis, Quality-of-Life Assessment
Procedure · Radiation · Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
50 Years and older · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Jul 7, 2017 · Synced Oct 10, 2026, 1:52 AM EDT
Recruiting Not applicable Interventional

Acutherapy to Prevent Aromatase Inhibitor-Associated Arthralgias in Non-Hispanic Black Postmenopausal Women With Early-Stage Breast Cancer

NCT06534125
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
Interventions
Acupressure Therapy, Acupuncture Therapy, Aromatase Inhibition Therapy, Discussion, Survey Administration
Procedure · Device · Drug + 1 more
Lead sponsor
Emory University
Other
Eligibility
18 Years and older · Female only
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
4
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 29, 2026 · Synced Oct 10, 2026, 1:52 AM EDT
Completed Phase 3 Interventional

Efficacy and Safety Study of EG12014 Compared With Herceptin in Subjects With HER2 Positive Early Breast Cancer

NCT03433313
View directory record Official record
Conditions
Breast Cancer
Interventions
EG12014, Herceptin
Drug
Lead sponsor
EirGenix, Inc.
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
807 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
2
States / cities
Farmington Hills, Michigan • Canton, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 20, 2023 · Synced Oct 10, 2026, 1:52 AM EDT
Recruiting Phase 2 Interventional

A Phase 2 Neoadjuvant Study of Zanidatamab in Combination With Chemotherapy in Participants With HER2-positive Breast Cancer

NCT07102381
View directory record Official record
Conditions
HER2-positive Breast Cancer, Breast Cancer
Interventions
Zanidatamab, Paclitaxel, Docetaxel, Carboplatin, Trastuzumab, Pertuzumab
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
29
States / cities
Long Beach, California • Los Alamitos, California • Denver, Colorado + 25 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2026 · Synced Oct 10, 2026, 1:52 AM EDT
Recruiting Phase 2 Interventional

I-SPY TRIAL: Neoadjuvant and Personalized Adaptive Novel Agents to Treat Breast Cancer

NCT01042379
View directory record Official record
Conditions
Breast Neoplasms, Breast Cancer, Breast Tumors, Angiosarcoma, TNBC - Triple-Negative Breast Cancer, HER2-positive Breast Cancer, HER2-negative Breast Cancer, Hormone Receptor Positive Tumor, Hormone Receptor Negative Tumor, Early-stage Breast Cancer, Locally Advanced Breast Cancer
Interventions
Standard Therapy, AMG 386 with or without Trastuzumab, AMG 479 (Ganitumab) plus Metformin, MK-2206 with or without Trastuzumab, AMG 386 and Trastuzumab, T-DM1 and Pertuzumab, Pertuzumab and Trastuzumab, Ganetespib, ABT-888, Neratinib, PLX3397, Pembrolizumab - 4 cycle, Talazoparib plus Irinotecan, Patritumab and Trastuzumab, Pembrolizumab - 8 cycle, SGN-LIV1A, Durvalumab plus Olaparib, SD-101 + Pembrolizumab, Tucatinib plus trastuzumab and pertuzumab, Cemiplimab, Cemiplimab plus REGN3767, Trilaciclib with or without trastuzumab + pertuzumab, SYD985 ([vic-]trastuzumab duocarmazine), Oral Paclitaxel + Encequidar + Dostarlimab (TSR-042) + Carboplatin with or without trastuzumab, Oral Paclitaxel + Encequidar + Dostarlimab (TSR-042) with or without trastuzumab, Amcenestrant, Amcenestrant + Abemaciclib, Amcenestrant + Letrozole, ARX788, ARX788 + Cemiplimab, VV1 + Cemiplimab, Datopotamab deruxtecan, Datopotamab deruxtecan + Durvalumab, Zanidatamab, Lasofoxifene, Z-endoxifen, ARV-471, ARV-471 + Letrozole, ARV-471 + Abemaciclib, Endoxifen + Abemaciclib, Rilvegostomig + TDXd, Dan222 + Niraparib, Sarilumab + Cemiplimab + Paclitaxel, GSK 5733584, GSK 5733584 + Dostarlimab, Ivonescimab (20mg/kg Q3W)
Drug
Lead sponsor
QuantumLeap Healthcare Collaborative
Other
Eligibility
18 Years and older
Enrollment
5,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2031
U.S. locations
42
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Tucson, Arizona + 36 more
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Oct 10, 2026, 1:52 AM EDT
Withdrawn Phase 2 Interventional

Feasibility of Chemotherapy De-escalation in Early-Stage HER2 Positive Breast Cancer

NCT04419181
View directory record Official record
Conditions
HER2-positive Breast Cancer
Interventions
Docetaxel, Carboplatin, Trastuzumab, Pertuzumab, Trastuzumab emtansine
Drug
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Oct 14, 2025 · Synced Oct 10, 2026, 1:52 AM EDT
Active, not recruiting No phase listed Observational

Use of Sentinel Lymph Node Biopsy in Patients With Early-Stage, Palpable Node-Positive HR+/HER2- Breast Cancer Having Upfront Surgery and Adjuvant Radiation

NCT04854005
View directory record Official record
Conditions
Breast Cancer
Interventions
Breast surgery
Procedure
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
10
States / cities
Hartford, Connecticut • Ann Arbor, Michigan • Basking Ridge, New Jersey + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Oct 10, 2026, 1:52 AM EDT
Active, not recruiting Phase 3 Interventional Results available

PALbociclib CoLlaborative Adjuvant Study

NCT02513394
View directory record Official record
Conditions
Breast Cancer
Interventions
Palbociclib, Standard Adjuvant Endocrine Therapy
Drug
Lead sponsor
Alliance Foundation Trials, LLC.
Other
Eligibility
18 Years and older
Enrollment
5,796 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2028
U.S. locations
192
States / cities
Mobile, Alabama • Anchorage, Alaska • Phoenix, Arizona + 138 more
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Oct 10, 2026, 1:52 AM EDT
Recruiting Phase 2 Interventional

Study of Patritumab Deruxtecan Plus Pembrolizumab With Other Anticancer Agents in Participants With High-Risk Early-Stage Triple-Negative or Hormone Receptor-Low Positive/HER-2 Negative Breast Cancer (MK-1022-010, HERTHENA-Breast-03)

NCT06797635
View directory record Official record
Conditions
Breast Neoplasms, Breast Cancer
Interventions
Patritumab deruxtecan, Pembrolizumab, Paclitaxel, Carboplatin, Doxorubicin hydrochloride, Epirubicin hydrochloride, Cyclophosphamide, Capecitabine, Olaparib
Biological · Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years and older
Enrollment
372 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2034
U.S. locations
8
States / cities
Santa Monica, California • Skokie, Illinois • Billings, Montana + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Oct 10, 2026, 1:52 AM EDT
Completed No phase listed Observational

Prospective Observational Study Evaluating Treatment Decision Impact of Prosigna® in Early Stage Breast Cancer Patients

NCT02625935
View directory record Official record
Conditions
Breast Cancer
Interventions
Not listed
Lead sponsor
NanoString Technologies, Inc.
Industry
Eligibility
Female only
Enrollment
206 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
4
States / cities
Fort Myers, Florida • Scarborough, Maine • Bethesda, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2017 · Synced Oct 10, 2026, 1:52 AM EDT
Completed Phase 3 Interventional Results available

A Study Of PF-05280014 Or Trastuzumab Plus Taxotere® And Carboplatin In HER2 Positive Breast Cancer In The Neoadjuvant Setting (REFLECTIONS B327-04)

NCT02187744
View directory record Official record
Conditions
Early Breast Cancer
Interventions
PF-05280014, Taxotere®, Paraplatin®, Trastuzumab-EU
Biological · Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older · Female only
Enrollment
226 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
4
States / cities
Fountain Valley, California • Kingwood, Texas • Shenandoah, Texas
Source: ClinicalTrials.gov public record
Updated Jan 8, 2019 · Synced Oct 10, 2026, 1:52 AM 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 18, 2013 · Synced Oct 10, 2026, 1:52 AM EDT
Terminated Phase 2 Interventional Results available

Talazoparib For Neoadjuvant Treatment Of Germline BRCA1/2 Mutation Patients With Early Human Epidermal Growth Factor Receptor 2 Negative Breast Cancer

NCT03499353
View directory record Official record
Conditions
Early Breast Cancer
Interventions
TALAZOPARIB
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
97
States / cities
Gilbert, Arizona • Fayetteville, Arkansas • Rogers, Arkansas + 64 more
Source: ClinicalTrials.gov public record
Updated Nov 9, 2021 · Synced Oct 10, 2026, 1:52 AM EDT
Active, not recruiting Phase 3 Interventional

Phase III Study to Assess AZD9833+ CDK4/6 Inhibitor in HR+/HER2-MBC With Detectable ESR1m Before Progression (SERENA-6)

NCT04964934
View directory record Official record
Conditions
ER-Positive HER2-Negative Breast Cancer
Interventions
AZD9833, AZD9833 Placebo, Anastrozole, Anastrozole placebo, Letrozole, Letrozole placebo, Palbociclib, Abemaciclib, Luteinizing hormone-releasing hormone (LHRH) agonist, Ribociclib
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
315 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
64
States / cities
Phoenix, Arizona • Hot Springs, Arkansas • Little Rock, Arkansas + 56 more
Source: ClinicalTrials.gov public record
Updated Sep 23, 2026 · Synced Oct 10, 2026, 1:52 AM EDT