Could estrogen fight breast cancer? new study targets resistant tumors
NCT ID NCT05716516
First seen Jan 17, 2026 · Last updated May 13, 2026 · Updated 20 times
Summary
This study tests if a form of estrogen (estradiol) can help control advanced breast cancer that is hormone-receptor-positive (ER+). It includes 36 post-menopausal women whose cancer has spread or returned and who have already tried other hormone therapies. The goal is to see if women with a specific gene change (ESR1 mutation) respond better than those without it.
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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.
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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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Dartmouth-Hitchcock Medical Center
RECRUITINGLebanon, New Hampshire, 03756, United States
Conditions
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