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ClinicalTrials.gov public records Last synced Jul 24, 2026, 2:05 AM EDT

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Showing 1–24 of 81 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: HER2-Positive Early Stage Breast Cancer Clear all
Recruiting Phase 3 Interventional

Phase IIIb Study of Ribociclib + ET in Early Breast Cancer

NCT05827081
View directory record Official record
Conditions
Early Breast Cancer
Interventions
Ribociclib, Letrozole, Ansastrozole, Goserelin, Leuprolide, Exemestane
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 100 Years
Enrollment
1,400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2030
U.S. locations
85
States / cities
Birmingham, Alabama • Anchorage, Alaska • Goodyear, Arizona + 74 more
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Jul 24, 2026, 2:05 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 Jun 4, 2026 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Phase 3 Interventional Results available

Study Evaluating The Effects Of Neratinib After Adjuvant Trastuzumab In Women With Early Stage Breast Cancer

NCT00878709
View directory record Official record
Conditions
Breast Cancer
Interventions
neratinib, placebo
Drug · Other
Lead sponsor
Puma Biotechnology, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
2,840 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2019
U.S. locations
185
States / cities
Anniston, Alabama • Birmingham, Alabama • Phoenix, Arizona + 147 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2021 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Phase 2 Interventional Results available

Preoperative Herceptin/Navelbine Versus Taxotere/Carboplatin/Herceptin in HER-2 Positive Breast Cancer

NCT00148668
View directory record Official record
Conditions
Breast Cancer
Interventions
Herceptin, Navelbine, Taxotere, Carboplatin
Drug
Lead sponsor
Eric Winer, MD
Other
Eligibility
18 Years and older
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2011
U.S. locations
4
States / cities
New Haven, Connecticut • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 8, 2013 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Phase 2 Interventional Results available

A Trial Using ARV-471 or Anastrozole in Post-Menopausal Women With Breast Cancer Prior to Surgery

NCT05549505
View directory record Official record
Conditions
Breast Cancer
Interventions
ARV-471, Anastrozole, Surgical resection of breast tumor
Drug · Procedure
Lead sponsor
Arvinas Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
152 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
13
States / cities
Springdale, Arkansas • Los Angeles, California • Torrance, California + 10 more
Source: ClinicalTrials.gov public record
Updated Aug 28, 2025 · Synced Jul 24, 2026, 2:05 AM EDT
Active, not recruiting Phase 2 Interventional

Neoadjuvant Endocrine Therapy in ER-positive, HER2-negative Early Stage Breast Cancer

NCT05150652
View directory record Official record
Conditions
Breast Cancer, HER2-negative Breast Cancer, Node-negative Breast Cancer, Breast Carcinoma
Interventions
Anastrozole 1mg, Letrozole 2.5mg, Exemestane 25 mg, Tamoxifen
Drug
Lead sponsor
Irada Ibrahim-zada
Other
Eligibility
18 Years to 99 Years · Female only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jan 6, 2026 · Synced Jul 24, 2026, 2:05 AM EDT
Not listed Phase 2 Interventional

Evaluating the Efficacy of Neratinib on Live Cell HER2 Signaling Transduction Analysis Positive Triple Negative Breast

NCT03812393
View directory record Official record
Conditions
Triple Negative Breast Cancer, Early-stage Breast Cancer, HER2-positive Breast Cancer
Interventions
Neratinib
Drug
Lead sponsor
West Cancer Center
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Germantown, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 17, 2023 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Phase 3 Interventional Results available

A Study to Evaluate the Pharmacokinetics, Efficacy, and Safety of Subcutaneous Administration of the Fixed-Dose Combination of Pertuzumab and Trastuzumab in Combination With Chemotherapy in Participants With HER2-Positive Early Breast Cancer

NCT03493854
View directory record Official record
Conditions
Early Breast Cancer
Interventions
Cyclophosphamide, Doxorubicin, Docetaxel, Paclitaxel, Pertuzumab IV, FDC of Pertuzumab and Trastuzumab SC, Trastuzumab IV, Trastuzumab SC, Surgery, Post-operative Radiotherapy, Hormone Therapy
Drug · Procedure · Radiation
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
4
States / cities
Rockville, Maryland • Farmington, New Mexico • Charlotte, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 25, 2024 · Synced Jul 24, 2026, 2:05 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 24, 2026, 2:05 AM EDT
Completed Phase 2 Interventional Results available

Adj TC + Herceptin Early Stage Breast Cancer

NCT00493649
View directory record Official record
Conditions
Breast Cancer
Interventions
Taxotere, Cytoxan, Herceptin
Drug
Lead sponsor
US Oncology Research
Industry
Eligibility
18 Years to 70 Years · Female only
Enrollment
493 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
69
States / cities
Birmingham, Alabama • Phoenix, Arizona • Sedona, Arizona + 62 more
Source: ClinicalTrials.gov public record
Updated Nov 2, 2016 · Synced Jul 24, 2026, 2:05 AM 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 24, 2026, 2:05 AM EDT
Completed Phase 1 Interventional

Safety and Pharmacokinetics of Atezolizumab Combination Treatments in Participants With HER2-Positive and HER2-Negative Breast Cancer

NCT02605915
View directory record Official record
Conditions
HER2-Positive Metastatic Breast Cancer, HER2-Negative Metastatic Breast Cancer, Locally Advanced or Early Breast Cancer
Interventions
Atezolizumab, Carboplatin, Docetaxel, Pertuzumab, Trastuzumab, Trastuzumab emtansine, Doxorubicin, Cyclophosphamide
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
20
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Joliet, Illinois + 17 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2020 · Synced Jul 24, 2026, 2:05 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 17, 2019 · Synced Jul 24, 2026, 2:05 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 10, 2025 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Phase 2 Interventional Results available

Adjuvant Ribociclib With Endocrine Therapy in Hormone Receptor+/HER2- High Risk Early Breast Cancer

NCT03078751
View directory record Official record
Conditions
Breast Cancer
Interventions
Ribociclib, Adjuvant endocrine therapy, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
33
States / cities
Tucson, Arizona • Fayetteville, Arkansas • Bakersfield, California + 28 more
Source: ClinicalTrials.gov public record
Updated Oct 10, 2021 · Synced Jul 24, 2026, 2:05 AM EDT
Active, not recruiting Phase 2 Interventional

Levels of Circulating Tumor DNA as a Predictive Marker for Early Switch in Treatment for Patients With Metastatic (Stage IV) Breast Cancer

NCT05826964
View directory record Official record
Conditions
Breast Cancer, ER-positive Breast Cancer, HER2-negative Breast Cancer, Metastatic Breast Cancer
Interventions
AI+CDK4/6i, SERD+CDK4/6i, mTOR inhibitor + AI, mTOR inhibitor + SERD, mTOR inhibitor + Selective estrogen receptor modulator, PI3K inhibitor + SERD, PI3K inhibitor + AI, Chemotherapy, Oral SERD, PARPi, AKT inhibitor, Step 3 Arm 2
Drug · Other
Lead sponsor
University of Miami
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Jul 24, 2026, 2:05 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 19, 2023 · Synced Jul 24, 2026, 2:05 AM 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 Dec 21, 2025 · Synced Jul 24, 2026, 2:05 AM EDT
Recruiting Phase 1 Interventional

RADIANT: Pre-op Radiation With Abemaciclib and Letrozole

NCT06139107
View directory record Official record
Conditions
Breast Cancer
Interventions
Abemaciclib, Letrozole
Drug
Lead sponsor
Mridula George, MD
Other
Eligibility
60 Years and older · Female only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2032
U.S. locations
4
States / cities
Belleville, New Jersey • Livingston, New Jersey • New Brunswick, New Jersey + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Jul 24, 2026, 2:05 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 14, 2026 · Synced Jul 24, 2026, 2:05 AM 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 Jul 24, 2026, 2:05 AM EDT
Withdrawn Not applicable Interventional

Circulating Tumor DNA Based Minimal Residual Disease Detection for Patients With Early-Stage Breast Cancer

NCT07136493
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, Estrogen Receptor-Positive Breast Carcinoma, HER2-Negative Breast Carcinoma, HER2-Positive Breast Carcinoma, Triple-Negative Breast Carcinoma
Interventions
Biospecimen Collection, Electronic Health Record Review, Survey Administration
Procedure · Other
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
5
States / cities
Goodyear, Arizona • Duarte, California • Irvine, California + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Phase 2 Interventional Results available

A Study Evaluating Pertuzumab (Perjeta) Combined With Trastuzumab (Herceptin) and Standard Anthracycline-based Chemotherapy in Participants With Human Epidermal Growth Factor Receptor 2 (HER2)-Positive Locally Advanced, Inflammatory, or Early-stage Breast Cancer

NCT02132949
View directory record Official record
Conditions
Breast Cancer
Interventions
5-Fluorouracil, Cyclophosphamide, Docetaxel, Doxorubicin, Epirubicin, Paclitaxel, Pertuzumab, Trastuzumab
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
18 Years and older
Enrollment
401 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
24
States / cities
Mobile, Alabama • Greenbrae, California • San Francisco, California + 19 more
Source: ClinicalTrials.gov public record
Updated Sep 16, 2021 · Synced Jul 24, 2026, 2:05 AM EDT
Terminated Not applicable Interventional Results available

Preoperative Stereotactic Ablative Body Radiotherapy (SABR) for Early-Stage Breast Cancer

NCT03137693
View directory record Official record
Conditions
Breast Cancer, Breast Cancer Female, Breast Adenocarcinoma
Interventions
Standard of Care Schedule Variation: SABR, Breast-conserving Surgery
Other · Procedure
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
50 Years and older · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Feb 22, 2023 · Synced Jul 24, 2026, 2:05 AM EDT