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Trastuzumab clinical trials

Directory of U.S. ClinicalTrials.gov public records that list Trastuzumab as a study intervention. Browse Trastuzumab recruiting trials, filter by phase, sponsor, or location, and open the official ClinicalTrials.gov study record for each result.

ClinicalTrials.gov public records Last synced Oct 19, 2026, 9:30 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

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Trastuzumab
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Showing 241–252 of 678 matching trials for Trastuzumab.
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Completed Phase 3 Interventional Results available

Chemotherapy With or Without Trastuzumab After Surgery in Treating Women With Invasive Breast Cancer

NCT01275677
View directory record Official record
Conditions
HER2/Neu Positive, Progesterone Receptor Positive, Recurrent Breast Carcinoma, Stage IA Breast Cancer AJCC v7, Stage IB Breast Cancer AJCC v7, Stage IIA Breast Cancer AJCC v6 and v7, Stage IIB Breast Cancer AJCC v6 and v7, Stage IIIA Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7
Interventions
Cyclophosphamide, Docetaxel, Doxorubicin, Doxorubicin Hydrochloride, Laboratory Biomarker Analysis, Paclitaxel, Quality-of-Life Assessment, Trastuzumab
Drug · Other · Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
3,270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2025
U.S. locations
1259
States / cities
Anniston, Alabama • Mobile, Alabama • Anchorage, Alaska + 797 more
Source: ClinicalTrials.gov public record
Updated Jul 14, 2025 · Synced Oct 19, 2026, 9:30 AM EDT
Completed No phase listed Observational

Real-world Outcomes of Patients With HER2+ Metastatic Breast Cancer After Treatment With Trastuzumab Deruxtecan

NCT06833268
View directory record Official record
Conditions
HER2-positive Breast Cancer
Interventions
No drug
Other
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
228 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 8, 2025 · Synced Oct 19, 2026, 9:30 AM EDT
Completed Phase 1 Interventional Results available

MEN1611 With Trastuzumab (+/- Fulvestrant) in Metastatic Breast Cancer

NCT03767335
View directory record Official record
Conditions
Advanced or Metastatic Breast Cancer
Interventions
MEN1611, Trastuzumab, Fulvestrant
Drug
Lead sponsor
Menarini Group
Industry
Eligibility
18 Years and older
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
3
States / cities
Fort Lauderdale, Florida • Farmington Hills, Michigan • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 26, 2025 · Synced Oct 19, 2026, 9:30 AM EDT
Terminated Phase 2 Interventional Results available

A Study of DS-8201a in Metastatic Breast Cancer Previously Treated With Trastuzumab Emtansine (T-DM1)

NCT03248492
View directory record Official record
Conditions
Breast Cancer
Interventions
DS-8201a
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
253 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
36
States / cities
Anchorage, Alaska • Tucson, Arizona • Los Angeles, California + 26 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2025 · Synced Oct 19, 2026, 9:30 AM EDT
Completed Phase 2 Interventional Results available

Incidence and Severity of Diarrhea in Patients With HER2 Positive Breast Cancer Treated With Trastuzumab and Neratinib

NCT03094052
View directory record Official record
Conditions
HER2-positive Breast Cancer, Breast Adenocarcinoma, Stage II Breast Cancer AJCC v6 and v7, Stage IIA Breast Cancer AJCC v6 and v7, Stage IIB Breast Cancer AJCC v6 and v7, Stage III Breast Cancer AJCC v7, Stage IIIA Breast Cancer AJCC v7, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7
Interventions
Neratinib, Trastuzumab, Loperamide, Crofelemer, Diphenoxylate/Atropine
Drug · Biological
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 26, 2025 · Synced Oct 19, 2026, 9:30 AM EDT
Completed Phase 3 Interventional Results available

Radiation Therapy With or Without Trastuzumab in Treating Women With Ductal Carcinoma In Situ Who Have Undergone Lumpectomy

NCT00769379
View directory record Official record
Conditions
Breast Ductal Carcinoma In Situ
Interventions
Laboratory Biomarker Analysis, Trastuzumab, Whole Breast Irradiation
Other · Biological · Radiation
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Female only
Enrollment
2,014 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2025
U.S. locations
1249
States / cities
Anniston, Alabama • Mobile, Alabama • Anchorage, Alaska + 764 more
Source: ClinicalTrials.gov public record
Updated Jun 12, 2025 · Synced Oct 19, 2026, 9:30 AM EDT
Completed Phase 2Phase 3 Interventional Results available

Combination Margetuximab, Retifanlimab, Tebotelimab, and Chemotherapy Phase 2/3 Trial in HER2+ Gastric/GEJ Cancer

NCT04082364
View directory record Official record
Conditions
Gastric Cancer, Gastroesophageal Junction Cancer, HER2-positive Gastric Cancer
Interventions
margetuximab, Retifanlimab, Tebotelimab, Trastuzumab, Chemotherapy
Biological · Other
Lead sponsor
MacroGenics
Industry
Eligibility
18 Years and older
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
28
States / cities
Scottsdale, Arizona • Duarte, California • Los Angeles, California + 25 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2025 · Synced Oct 19, 2026, 9:30 AM EDT
Terminated Phase 2 Interventional Results available

DS-8201a in Human Epidermal Growth Factor Receptor 2 (HER2)-Expressing or -Mutated Non-Small Cell Lung Cancer

NCT03505710
View directory record Official record
Conditions
Non-Small Cell Lung Cancer
Interventions
Trastuzumab deruxtecan
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
9
States / cities
La Jolla, California • Aurora, Colorado • Tampa, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated May 30, 2025 · Synced Oct 19, 2026, 9:30 AM EDT
Terminated Phase 1 Interventional

Direct Tumor Microinjection and FDG-PET in Testing Drug Sensitivity in Patients With Relapsed or Refractory Non-Hodgkin Lymphoma, Hodgkin Lymphoma, or Stage IV Breast Cancer

NCT03432741
View directory record Official record
Conditions
Breast Adenocarcinoma, Metastatic Breast Carcinoma, Recurrent Breast Carcinoma, Recurrent Hodgkin Lymphoma, Recurrent Mycosis Fungoides, Recurrent Non-Hodgkin Lymphoma, Recurrent Primary Cutaneous T-Cell Non-Hodgkin Lymphoma, Refractory Breast Carcinoma, Refractory Hodgkin Lymphoma, Refractory Mycosis Fungoides, Refractory Nodal Marginal Zone Lymphoma, Refractory Non-Hodgkin Lymphoma, Refractory Primary Cutaneous T-Cell Non-Hodgkin Lymphoma, Stage IV Breast Cancer AJCC v6 and v7
Interventions
Belinostat, Carfilzomib, Copanlisib Hydrochloride, Daratumumab, Fludeoxyglucose F-18, Gemcitabine Hydrochloride, Laboratory Biomarker Analysis, Nivolumab, Obinutuzumab, Pembrolizumab, Positron Emission Tomography, Rituximab, Romidepsin, Saline, Trastuzumab
Drug · Biological · Other + 1 more
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 26, 2025 · Synced Oct 19, 2026, 9:30 AM EDT
Recruiting Phase 2Phase 3 Interventional

Adjuvant Chemoradiation and Biomarkers of Response in High-risk Breast Cancer

NCT05288777
View directory record Official record
Conditions
Breast Cancer, Breast Cancer Stage I, Breast Cancer Stage II, Breast Cancer Stage III
Interventions
T-DM1, Capecitabine, External Beam Radiation Therapy 0, External Beam Radiation Therapy 1
Drug · Radiation
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2029
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 18, 2025 · Synced Oct 19, 2026, 9:30 AM EDT
Completed Phase 2 Interventional Results available

A Study to Assess the Efficacy and Safety of Enzalutamide With Trastuzumab in Patients With Human Epidermal Growth Factor Receptor 2 Positive (HER2+), Androgen Receptor Positive (AR+) Metastatic or Locally Advanced Breast Cancer

NCT02091960
View directory record Official record
Conditions
HER2 Amplified, Advanced Breast Cancer, Human Epidermal Growth Factor Receptor 2 (HER2)
Interventions
Enzalutamide, Trastuzumab
Drug
Lead sponsor
Astellas Pharma Global Development, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2024
U.S. locations
16
States / cities
Anaheim, California • Los Angeles, California • San Francisco, California + 12 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2025 · Synced Oct 19, 2026, 9:30 AM EDT
Completed Phase 2 Interventional Results available

DS-8201a in HER2-positive Gastric Cancer That Cannot Be Surgically Removed or Has Spread (DESTINY-Gastric02)

NCT04014075
View directory record Official record
Conditions
Adenocarcinoma Gastric Stage IV With Metastases, Adenocarcinoma - GEJ
Interventions
Trastuzumab deruxtecan
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
20
States / cities
Duarte, California • Los Angeles, California • Monterey, California + 15 more
Source: ClinicalTrials.gov public record
Updated Apr 3, 2025 · Synced Oct 19, 2026, 9:30 AM EDT

About this Trastuzumab clinical trials directory page

What this page lists
U.S. ClinicalTrials.gov public records that list Trastuzumab as a study intervention, including recruiting, not yet recruiting, and active not recruiting trials.
How to narrow results
Use the filters above to scope by condition, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, age, or NCT ID within Trastuzumab.
Where the data comes from
Records are sourced from the official ClinicalTrials.gov public API. Each result links back to the official study page, which is the source of truth for eligibility, enrollment, and contact information.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, ranking of trials by quality, or AI-generated medical summaries.

Related: all therapy pages, browse by condition, browse by U.S. city, browse by sponsor, or open the full search for Trastuzumab.