Research progress of dalpiciclib in treatment of breast cancer
As the first domestically originated cell cycle protein-dependent kinase 4/6 inhibitor,dalpiciclib has been approved by the State Drug Ad-ministration for the treatment of hormone recep-tor-positive/human epidermal growth factor recep-tor 2-negative advanced or metastatic breast can-cer in combination with fulvestrant or aromatase inhibitors.This article focuses on the progress of dalpiciclib research in breast cancer,summarizing the drug's mechanism of action,phase Ⅰ-Ⅲ clinical trials,and drug safety issues.