New drug combo shows promise in shrinking aggressive breast tumors before surgery

NCT ID NCT02326974

First seen Apr 23, 2026 · Last updated Apr 28, 2026 · Updated 1 time

Summary

This study tests whether giving two targeted drugs (T-DM1 and pertuzumab) before surgery can eliminate all signs of cancer in women with early-stage HER2-positive breast cancer. About 164 participants with stage II or III disease will receive the combination, and doctors will check if the tumor completely disappears by the time of surgery. The goal is to improve treatment and understand how different levels of the HER2 protein affect response.

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Contacts and locations

Locations

  • Dana Farber Cancer Institute

    Boston, Massachusetts, 02215, United States

  • Massachusetts General Hospital

    Boston, Massachusetts, 02114, United States

  • Tennessee Oncology/Sarah Cannon Research Institute

    Nashville, Tennessee, 37203, United States

  • Vanderbilt-Ingram Cancer Center

    Nashville, Tennessee, 37232, United States

Conditions

Explore the condition pages connected to this study.