Can we predict breast cancer resistance to hormone therapy?

NCT ID NCT06361940

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at why some hormone-receptor-positive breast cancers stop responding to hormone therapy. About 100 women with early-stage breast cancer will receive standard hormone treatment for 4-12 weeks before surgery. Researchers will analyze tumor samples to find changes in certain proteins that may signal resistance, aiming to improve future treatment choices.

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm hormone receptor-positive breast cancer

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

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

Locations

  • Froedtert Hospital and the Medical College of Wisconsin

    RECRUITING

    Milwaukee, Wisconsin, 53226, United States

    Contact Email: •••••@•••••