Breast tumor luminal A or B

This study is for women with early-stage luminal breast cancer that has spread to 1 or 2 lymph nodes. Instead of removing many lymph nodes from the armpit, surgeons will remove only the marked suspicious node and the sentinel nodes. If fewer than 3 nodes are positive, full lymph …

This study tests whether adding retinoic acid (a vitamin A derivative) to an immune checkpoint inhibitor can help shrink tumors or slow disease progression in people with HER2-negative breast cancer whose cancer stopped responding to prior immunotherapy. About 10 participants wil…

This study is testing whether women with early-stage luminal breast cancer can follow a special diet (ketogenic or protein-restricted) for about 9 days before their surgery. The main goal is to see if patients can stick to the diet. Researchers will also look at how the diet affe…