Wenjin Yin

This study looks at whether taking CDK4/6 inhibitor pills after surgery can help prevent breast cancer from returning in people with hormone receptor-positive, HER2-negative breast cancer. About 229 adults will take these drugs as part of their standard follow-up care. The goal i…

This study compares taking pyrotinib every day versus taking it on a schedule with breaks for people with advanced HER2-positive breast cancer. About 186 adults whose cancer has spread or cannot be removed by surgery will participate. The goal is to see which approach works bette…

This study tests a new drug called QL1706 in people with a certain type of advanced breast cancer (HR+/HER2-). The goal is to see if it can help keep the cancer from growing longer than standard treatments. About 123 women will take part, and researchers will also monitor for sid…

This study compares a combination of two chemotherapy drugs (capecitabine and cyclophosphamide) against the doctor's choice of treatment as maintenance therapy for people with advanced breast cancer whose disease is currently under control. The goal is to see if the drug combo ca…