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Study identifier: NCT06188559 Synced from ClinicalTrials.gov · August 06, 2026
● Study status: Completed

A Study of BB-1701 in Previously Treated Participants With Human Epidermal Growth Factor Receptor 2 (HER2)-Positive or HER2-low Unresectable or Metastatic Breast Cancer

Condition: Breast Cancer  ·  Sponsor: Eisai Inc.

PhasePhase 2
Planned participants56
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

The primary purpose of the Dose Optimization (Part 1) of this study is to assess the safety and tolerability of BB-1701 and to determine the recommended dose (RD) of BB-1701 for Dose Expansion (Part 2). The primary purpose of Dose Expansion (Part 2) is to assess the antitumor activity of BB-1701 at RD in the selected population(s) of breast cancer (BC).

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

Talk to the study team

No contact information is available for this study as per the public registry record.

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Locations (49)

Cancer and Blood Specialty ClinicLos Alamitos, California, United States
UCLA Center for East-West MedicineLos Angeles, California, United States
UCSFSan Francisco, California, United States
Yale New Haven HospitalNew Haven, Connecticut, United States
AdventHealth Cancer Institute - OrlandoOrlando, Florida, United States
Moffitt Cancer CenterTampa, Florida, United States
Fort Wayne Medical Oncology & HematologyFort Wayne, Indiana, United States
Community Cancer Center SouthIndianapolis, Indiana, United States
Mission Blood and CancerDes Moines, Iowa, United States
University of Michigan HospitalAnn Arbor, Michigan, United States
Washington University in St. Louis School of MedicineSt Louis, Missouri, United States
NHO Revive Research Institute LLCLincoln, Nebraska, United States

+ 37 more locations — full list on the registry record.

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