New imaging method could reveal how well hormone therapy works in breast cancer

NCT ID NCT04692103

First seen Jan 27, 2026 · Last updated May 15, 2026 · Updated 23 times

Summary

This study tests a special PET scan called FES PET/CT to see how breast cancer tumors respond to hormone therapy. It involves 2 adults with estrogen receptor-positive breast cancer that is new, has come back, or spread. The scan measures changes in hormone receptor levels before, during, and after treatment to help doctors better understand if the therapy is working.

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Contacts and locations

Locations

  • Fred Hutch/University of Washington Cancer Consortium

    Seattle, Washington, 98109, United States

Conditions

Explore the condition pages connected to this study.