Hormone therapy before surgery for breast cancer
Treatments studied
Part of Cancer, Skin clinical trials.
This study looks at how a hormone-blocking medicine (endocrine therapy) given before surgery affects a marker called Ki67 in your breast cancer cells. The goal is to see if the medicine can slow the growth of the cancer, which may help doctors choose the best treatment for you.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are a woman age 18 or older and have gone through menopause (no period for at least 12 months or ovaries removed).
- You have been diagnosed with invasive breast cancer that has not spread to distant organs (stage I, II, or III).
- Your cancer is ER-positive and HER2-negative (meaning it grows in response to estrogen and does not have too much HER2 protein).
- You are scheduled to have surgery first, before any chemotherapy or hormone therapy.
- You have never had breast cancer before, and have not taken hormone therapy for risk reduction in the last 3 months.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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