Common drug may shield hearts during breast cancer radiation

NCT ID NCT05607017

First seen Apr 17, 2026 · Last updated May 16, 2026 · Updated 2 times

Summary

This small early-phase study tested whether losartan, a common blood pressure medication, could prevent early signs of heart damage caused by radiation therapy in breast cancer patients. Five women with left-sided breast cancer who were scheduled for standard radiation took losartan. The study measured heart changes using MRI scans and blood tests to see if the drug could reduce radiation-induced fibrosis.

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Contacts and locations

Locations

  • Massachusetts General Hospital Cancer Center

    Boston, Massachusetts, 02114, United States

Conditions

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