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Study identifier: NCT07060807 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

A Clinical Study of Patritumab Deruxtecan to Treat Breast Cancer (MK-1022-016)

Condition: Breast Neoplasms  ·  Sponsor: Merck Sharp & Dohme LLC

PhasePhase 3
Planned participants1000
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

Researchers are looking for other ways to treat breast cancer (BC) that is hormone receptor-positive and human epidermal growth factor receptor 2-negative (HR+/HER2-) and either unresectable locally advanced or metastatic. * HR positive (HR+) means the cancer cells have proteins that attach to estrogen or progesterone (hormones) which help the cancer to grow and spread * HER2 negative (HER2-) means the cancer cells have a low amount of a protein called HER2 * Unresectable locally advanced means the cancer cannot be completely removed by surgery and has spread into nearby tissue or muscles * Metastatic means the cancer has spread to other parts of the body Treatment for this type of breast cancer usually includes endocrine therapy (ET) and sometimes a second treatment. The main goal of this study is to learn if people who receive patritumab deruxtecan (also known as HER3-DXd and MK-1022) live longer overall or without the cancer growing/spreading, compared to people who receive chemotherapy or a different drug called trastuzumab deruxtecan.

This description comes directly from the study's public registry record.

Talk to the study team

Toll Free Number  ·  1-888-577-8839  ·  Trialsites@msd.com

Always discuss trial participation with your own doctor first.

Locations (195)

Southern Cancer Center (SCC) ( Site 8000)Daphne, Alabama, United StatesRecruiting
The University of Arizona Cancer Center - North Campus ( Site 0055)Tucson, Arizona, United StatesRecruiting
Los Angeles Hematology Oncology Medical Group ( Site 0026)Los Angeles, California, United StatesRecruiting
Hoag Memorial Hospital Presbyterian ( Site 0025)Newport Beach, California, United StatesRecruiting
St. Marys Hospital and Regional Medical Center-SCL Health Cancer Centers of Colorado ( Site 0021)Grand Junction, Colorado, United StatesRecruiting
Medical Oncology Hematology Consultants (MOHC) ( Site 8002)Newark, Delaware, United StatesRecruiting
AdventHealth Medical Group Oncology and Hematology at Altamonte ( Site 0024)Altamonte Springs, Florida, United StatesRecruiting
Comprehensive Hematology Oncology ( Site 0060)St. Petersburg, Florida, United StatesRecruiting
Baptist Health Lexington ( Site 0050)Lexington, Kentucky, United StatesRecruiting
Baptist Health Hamburg ( Site 0071)Lexington, Kentucky, United StatesRecruiting
John Theurer Cancer Center at Hackensack University Medical Center ( Site 0001)Hackensack, New Jersey, United StatesRecruiting
Rutgers Cancer Institute of New Jersey ( Site 0033)New Brunswick, New Jersey, United StatesRecruiting

+ 183 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT07060807