A Study of BL0175 Injection in Postmenopausal Female Adults With HR-positive, Locally Advanced or Metastatic Cancer
The goal of this clinical trial is to learn if the investigational drug BL0175 works to treat adult postmenopausal women with hormone receptor (HR)-positive, human epidermal growth factor receptor (HER2)-negative locally advanced or metastatic breast cancer, ovarian cancer and endometrial cancer. It will also learn about the safety of BL0175. The main questions it aims to answer are:
* Does the investigational drug BL0175 is safe for participants after dosed -multiple times?
* Which is the highest safety dose of BL0175 after multiple dose?
* What medical problems do participants have when usi