This study is looking at metastatic breast cancer with liver dominant disease. Metastatic breast cancer means that the cancer has spread from the breast to other parts of the body. Liver dominant disease means that most of the cancer is located in the liver, or the most serious part of the disease is in the liver. The study is specifically for people with HER2-negative breast cancer, which is a specific type of breast cancer based on certain markers found on the cancer cells. The study will use several different medications: melphalan given through a special delivery system called HDS, eribulin, vinorelbine, and capecitabine. Melphalan is given directly into the blood vessels that supply the liver through a procedure that involves placing a thin tube into blood vessels in the groin area. Eribulin and vinorelbine are given through a vein, while capecitabine is taken by mouth as tablets.
The purpose of the study is to find out if giving melphalan through the special liver delivery system followed by treatment with one of the other medications works better than giving one of those other medications alone in controlling the cancer in the liver. The study will compare how long patients go without their liver cancer getting worse when they receive the combination treatment versus when they receive only one of the single medications. The study will also look at other measures such as how long patients live, how many patients see their tumors shrink, and how long the response to treatment lasts.
Patients in this study will be randomly assigned to one of two treatment groups. One group will first receive melphalan treatment directed to the liver, followed by treatment with either eribulin, vinorelbine, or capecitabine chosen by their doctor. The other group will receive only one of these three medications without the melphalan treatment first. Patients will be monitored with scans such as computed tomography and magnetic resonance imaging to check how the cancer is responding to treatment. The study will follow patients for up to two years of treatment and will continue to track their health outcomes over time.



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