Cancer Type: Breast

For more information about any of the clinical trials listed on this site, call 314-747-7222 or 800-600-3606 toll free or email Patient_Care_Coordination_Center@bjc.org.

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202211202

Brief Summary The purpose of this clinical trial is to learn about the safety and effects of the study medicine (called ARV-471) when given together with other medicines for the potential treatment of advanced or metastatic breast cancer.

202212154

Brief Summary This open-label research study is studying (Z)-endoxifen as a possible treatment for pre-menopausal (still having periods) women with ER+/HER2- breast cancer. This study includes a pharmacokinetic part (PK, how the drug works in your body) and a treatment part. The primary purpose of the study is to see how (Z)-endoxifen works on tumor cell growth by taking a biopsy after 4 weeks of treatment to measure Ki-67. Ki-67 is a cancer marker that indicates how well the treatments work to slow cancer cell growth. Overall, this study will help determine if (Z)-endoxifen can effectively treat premenopausal women with ER+/HER2- breast cancer without the need for monthly injections of goserelin which is a medication given to block the ovaries from making estrogen (also called ovarian suppression). Studies have shown harmful long-term effects of ovarian suppression in premenopausal women.