New combo aims to outsmart resistant breast cancer

NCT ID NCT07198724

First seen Nov 01, 2025 · Last updated May 14, 2026 · Updated 21 times

Summary

This study tests whether combining two drugs—elacestrant and trastuzumab deruxtecan—can shrink tumors in people with a specific type of advanced breast cancer (HR+/HER2-low) that no longer responds to standard hormone therapy or CDK4/6 inhibitors. About 65 participants will receive the combination to find the safest dose and measure how well it works. The goal is to control the disease, not cure it, as ongoing treatment is needed.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Dana-Farber Cancer Institute

    RECRUITING

    Boston, Massachusetts, 02215, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

Conditions

Explore the condition pages connected to this study.