New study explores letrozole's effects on breast cancer before surgery
NCT ID NCT04568616
First seen Jan 20, 2026 · Last updated Jun 05, 2026 · Updated 21 times
Summary
This study tests the drug letrozole in postmenopausal women with early-stage ER+ breast cancer. Participants take letrozole for 4 to 24 weeks before surgery to see how the tumor changes and to check if they take the medication as prescribed. The goal is to improve treatment for this type of breast cancer.
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the original study
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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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Contacts and locations
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Locations
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Dartmouth Hitchcock Medical Center
Lebanon, New Hampshire, 03756, United States
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Dartmouth-Hitchcock Medical Center
Lebanon, New Hampshire, 03756, United States
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.