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ClinicalTrials.gov public records Last synced Jul 21, 2026, 11:24 AM EDT

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Showing 1–24 of 67 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: HER2 Low Breast Cancer Clear all
Active, not recruiting Phase 2Phase 3 Interventional

Study in Metastatic Breast Cancer Patients Receiving Eftilagimod Alpha or Placebo in Combination with Paclitaxel Chemotherapy

NCT05747794
View directory record Official record
Conditions
Breast Carcinoma
Interventions
eftilagimod alpha, Paclitaxel, placebo
Biological · Drug · Other
Lead sponsor
Immutep S.A.S.
Industry
Eligibility
18 Years and older
Enrollment
849 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
5
States / cities
Whittier, California • Washington D.C., District of Columbia • Rock Hill, South Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Dec 16, 2024 · Synced Jul 21, 2026, 11:24 AM 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, 11:24 AM EDT
Terminated Phase 2 Interventional Results available

Clinical Study for the Treatment of Breast Cancer: the Patient Will Receive Afatinib Plus Letrozole or Letrozole Alone

NCT02115048
View directory record Official record
Conditions
Breast Neoplasms
Interventions
Letrozole, Afatinib
Drug
Lead sponsor
Translational Research in Oncology
Other
Eligibility
18 Years and older · Female only
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
9
States / cities
Fullerton, California • Los Angeles, California • Northridge, California + 6 more
Source: ClinicalTrials.gov public record
Updated Dec 25, 2019 · Synced Jul 21, 2026, 11:24 AM EDT
Recruiting Phase 1Phase 2 Interventional

ERADICATE: A Phase Ib/II Study of Elacestrant Plus Trastuzumab Deruxtecan in Patients With CDK4/6 Inhibitor and Endocrine-resistant HR+/HER2-low or HER2-ultralow Metastatic Breast Cancer

NCT07198724
View directory record Official record
Conditions
Metastatic Breast Cancer, HER2 Low Breast Carcinoma, HER2-negative Breast Cancer, Breast Cancer, Breast Cancer Female
Interventions
Elacestrant, Trastuzumab Deruxtecan
Drug
Lead sponsor
Kristina A. Fanucci
Other
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2038
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Jul 21, 2026, 11:24 AM EDT
Active, not recruiting Phase 3 Interventional

A Phase III Randomised Study to Evaluate Dato-DXd and Durvalumab for Neoadjuvant/Adjuvant Treatment of Triple-Negative or Hormone Receptor-low/HER2-negative Breast Cancer

NCT06112379
View directory record Official record
Conditions
Breast Cancer
Interventions
Dato-DXd, Durvalumab, Pembrolizumab, Doxorubicin, Epirubicin, Cyclophosphamide, Paclitaxel, Carboplatin, Capecitabine, Olaparib
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
1,902 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2032
U.S. locations
58
States / cities
Daphne, Alabama • Prescott, Arizona • Jonesboro, Arkansas + 53 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Jul 21, 2026, 11:24 AM EDT
Completed Phase 2 Interventional Results available

Evaluate Trastuzumab Plus Standard Chemotherapy Given Before Surgery in Breast Cancer Patients With Low HER 2 Expression

NCT00944047
View directory record Official record
Conditions
Breast Cancer
Interventions
nab-paclitaxel, trastuzumab, Doxorubicin, cyclophosphamide, Growth Factor Support, Surgery
Drug · Biological · Procedure
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2017
U.S. locations
2
States / cities
Hays, Kansas • Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 22, 2018 · Synced Jul 21, 2026, 11:24 AM EDT
Recruiting Phase 1Phase 2 Interventional

Gene Therapy for HER-Positive Cancer (SENTRY-HER2)

NCT07192432
View directory record Official record
Conditions
HER2 Expressing Solid Tumors
Interventions
Dose Level 1, VNX-202, Dose Level 2, VNX-202, Dose Level 3, VNX-202, Dose Level 4, VNX-202
Genetic
Lead sponsor
Vironexis Biotherapeutics Inc.
Industry
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2033
U.S. locations
10
States / cities
Los Angeles, California • Denver, Colorado • Jacksonville, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Jul 21, 2026, 11:24 AM EDT
Recruiting No phase listed Observational

QuantifyHER: Quantitative Immunofluorescence and/or RT-qPCR for Measuring HER2 in HER2-low Metastatic Breast Cancer

NCT06551116
View directory record Official record
Conditions
HER2-positive Metastatic Breast Cancer
Interventions
CE-10-IVD
Diagnostic Test
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
37
States / cities
San Francisco, California • Derby, Connecticut • Fairfield, Connecticut + 27 more
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Jul 21, 2026, 11:24 AM EDT
Completed Phase 2 Interventional Results available

Combination Immunotherapy With Herceptin and the HER2 Vaccine NeuVax

NCT01570036
View directory record Official record
Conditions
Breast Cancer
Interventions
Herceptin, NeuVax vaccine, GM-CSF
Drug
Lead sponsor
George E. Peoples
Industry
Eligibility
18 Years and older · Female only
Enrollment
275 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
29
States / cities
Beverly Hills, California • Santa Monica, California • Santa Rosa, California + 22 more
Source: ClinicalTrials.gov public record
Updated Dec 1, 2020 · Synced Jul 21, 2026, 11:24 AM EDT
Terminated Phase 1 Interventional

Intrathecal Pertuzumab and Trastuzumab in Patients With New Untreated Asymptomatic or Low Symptomatic Brain Metastasis in HER2 Positive Breast Cancer

NCT02598427
View directory record Official record
Conditions
HER2 Positive Untreated Metastatic Breast Cancer, Asymptomatic or Low Symptomatic Brain Metastasis in Breast Cancer
Interventions
Pertuzumab, Trastuzumab
Drug
Lead sponsor
Kimberly Blackwell
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 27, 2018 · Synced Jul 21, 2026, 11:24 AM EDT
Active, not recruiting Phase 3 Interventional

Study of Sacituzumab Govitecan Versus Treatment of Physician's Choice in Patients With Hormone Receptor-positive/Human Epidermal Growth Factor Receptor 2 Negative (HR+/HER2-) Metastatic Breast Cancer Who Have Received Endocrine Therapy

NCT05840211
View directory record Official record
Conditions
Locally Advanced or Unresectable Metastatic Breast Cancer, Stage IV Breast Cancer
Interventions
Sacituzumab Govitecan-hziy, Paclitaxel, Nab-paclitaxel, Capecitabine
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
654 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
30
States / cities
Chandler, Arizona • Los Angeles, California • Palo Alto, California + 25 more
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Jul 21, 2026, 11:24 AM EDT
Active, not recruiting Phase 1 Interventional

Phase 1b Study of EZH1/2 Inhibitor Valemetostat in Combination With Trastuzumab Deruxtecan in Subjects With HER2 Low/Ultra-low/Null Metastatic Breast Cancer

NCT05633979
View directory record Official record
Conditions
Breast Cancer
Interventions
Trastuzumab deruxtecan, Valemetostat
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2032
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Jul 21, 2026, 11:24 AM EDT
Active, not recruiting Phase 1 Interventional

Cyclophosphamide and Veliparib in Treating Patients With Locally Advanced or Metastatic Breast Cancer

NCT01351909
View directory record Official record
Conditions
Locally Advanced Unresectable Breast Carcinoma, Metastatic Breast Carcinoma, Recurrent Breast Carcinoma, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Cyclophosphamide, Laboratory Biomarker Analysis, Veliparib
Drug · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2027
U.S. locations
5
States / cities
New York, New York • The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Jul 21, 2026, 11:24 AM EDT
Completed Phase 1 Interventional

A First in Human Study of BAY2701439 to Look at Safety, How the Body Absorbs, Distributes and Excretes the Drug, and How Well the Drug Works in Participants With Advanced Cancer Expressing the HER2 Protein

NCT04147819
View directory record Official record
Conditions
Cancers With HER2 Expression
Interventions
BAY2701439
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
4
States / cities
Baltimore, Maryland • St Louis, Missouri • New York, New York + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 26, 2024 · Synced Jul 21, 2026, 11:24 AM EDT
Recruiting Phase 3 Interventional

Testing Whether Hormone Therapy With Ribociclib is as Effective as Chemotherapy Followed by Hormone Therapy With Ribociclib for the Treatment of High Anatomic Stage Breast Cancer With Low Recurrence Risk, The RxFINE-Low Trial

NCT07391774
View directory record Official record
Conditions
Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage IIIA Breast Cancer AJCC v8, Anatomic Stage IIIC Breast Cancer AJCC v8, Estrogen Receptor-Positive Breast Carcinoma, HER2-Negative Breast Carcinoma
Interventions
Anastrozole, Biospecimen Collection, Bone Scan, Chemotherapy, Computed Tomography, Exemestane, Letrozole, Oncotype DX Breast Cancer Assay, Positron Emission Tomography, Ribociclib Succinate
Drug · Procedure
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
1,978 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2029
U.S. locations
67
States / cities
Jonesboro, Arkansas • Berkeley, California • Palo Alto, California + 52 more
Source: ClinicalTrials.gov public record
Updated Jul 19, 2026 · Synced Jul 21, 2026, 11:24 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Study BT8009-100 in Subjects With Nectin-4 Expressing Advanced Malignancies

NCT04561362
View directory record Official record
Conditions
Urinary Bladder Neoplasm, Triple Negative Breast Neoplasms, Hormone Receptor Positive, HER2-negative Neoplasms, Hormone Receptor Positive, HER2-low Neoplasms, Breast Neoplasms, Non-Small-Cell Lung Neoplasms, Ovarian Neoplasm, Advanced Solid Tumor
Interventions
BT8009, Pembrolizumab
Drug
Lead sponsor
BicycleTx Limited
Industry
Eligibility
18 Years and older
Enrollment
329 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
9
States / cities
Denver, Colorado • Ocala, Florida • Orlando, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Jul 21, 2026, 11:24 AM EDT
Terminated Phase 2 Interventional

Therapeutic Cancer Vaccine (AST-301, pNGVL3-hICD) in Patients With Breast Cancer

NCT05163223
View directory record Official record
Conditions
Breast Cancer
Interventions
AST-301(pNGVL3-hICD), rhuGM-CSF, Placebo, Pembrolizumab, Capecitabine
Biological · Drug
Lead sponsor
Aston Sci. Inc.
Industry
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
10
States / cities
Chandler, Arizona • La Jolla, California • Tampa, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 16, 2024 · Synced Jul 21, 2026, 11:24 AM EDT
Completed No phase listed Observational

Estimation of the Prevalence of HER2 Low and Describe the SoC, Treatment Patterns, and Outcome in Real-world Practice Among Unresectable and/or Metastatic Breast Cancer Patients With HER2 Low Status

NCT04807595
View directory record Official record
Conditions
Breast Cancer
Interventions
None (Observational study)
Other
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 130 Years
Enrollment
798 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 5, 2023 · Synced Jul 21, 2026, 11:24 AM EDT
Active, not recruiting Phase 2 Interventional

A Study of Disitamab Vedotin With Other Anticancer Drugs in Solid Tumors

NCT06157892
View directory record Official record
Conditions
Breast Neoplasms, Gastroesophageal Junction Adenocarcinoma, HER2 Low Breast Neoplasms, HER2 Positive Breast Neoplasms, Stomach Neoplasms, Triple Negative Breast Neoplasms, Metastatic Breast Cancer, Metastatic Gastric Cancer, Advanced Breast Cancer, Advanced Gastric Cancer
Interventions
disitamab vedotin, tucatinib
Drug
Lead sponsor
Seagen, a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2029
U.S. locations
79
States / cities
Tucson, Arizona • Orange, California • San Francisco, California + 40 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Jul 21, 2026, 11:24 AM EDT
Completed No phase listed Observational

Study of Predictors of Clinical Outcomes in Patients With HR+ and HER2-low/Negative Breast Cancer

NCT06040593
View directory record Official record
Conditions
Hormone-receptor-positive Breast Cancer, HER2-low Breast Cancer, HER2-negative Breast Cancer
Interventions
No drug
Other
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
927 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 25, 2024 · Synced Jul 21, 2026, 11:24 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Use of Trastuzumab to Induce Increased ER Expression in ER-negative/Low, Her-2/Neu Positive Breast Cancer

NCT00726180
View directory record Official record
Conditions
Breast Cancer
Interventions
trastuzumab (Herceptin®)
Drug
Lead sponsor
University of Michigan Rogel Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 14, 2013 · Synced Jul 21, 2026, 11:24 AM EDT
Active, not recruiting Phase 3 Interventional Results available

Study of Trastuzumab Deruxtecan (T-DXd) vs Investigator's Choice Chemotherapy in HER2-low, Hormone Receptor Positive, Metastatic Breast Cancer

NCT04494425
View directory record Official record
Conditions
Advanced or Metastatic Breast Cancer
Interventions
Trastuzumab deruxtecan, Capecitabine, Paclitaxel, Nab-Paclitaxel
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 105 Years
Enrollment
866 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
27
States / cities
Scottsdale, Arizona • Springdale, Arkansas • Duarte, California + 23 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Jul 21, 2026, 11:24 AM EDT
Completed Phase 2 Interventional

Folate Receptor Alpha Peptide Vaccine With GM-CSF in Patients With Triple Negative Breast Cancer

NCT02593227
View directory record Official record
Conditions
Breast Cancer
Interventions
Low dose FRα vaccine, Cyclophosphamide, High dose FRα vaccine
Biological · Drug
Lead sponsor
Marker Therapeutics, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
11
States / cities
Tampa, Florida • Westwood, Kansas • Baltimore, Maryland + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2021 · Synced Jul 21, 2026, 11:24 AM EDT
Active, not recruiting Phase 1 Interventional

A Phase 1b Study of T-DXd Combinations in HER2-low Advanced or Metastatic Breast Cancer

NCT04556773
View directory record Official record
Conditions
Metastatic Breast Cancer
Interventions
Trastuzumab deruxtecan, Durvalumab, Paclitaxel, Capivasertib, Anastrozole, Fulvestrant, Capecitabine
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
138 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
9
States / cities
Commack, New York • Harrison, New York • New York, New York + 5 more
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Jul 21, 2026, 11:24 AM EDT