A Study of BL0175 Injection in Postmenopausal Female Adults With HR-positive, Locally Advanced or Metastatic Cancer

"BL0175 is a nano-medicine for cancer therapy. Nano-medicine means the tiny size of this study drug allows it to enter and concentrate into the tumor tissue. This is a new way of delivering an active drug (an estrogen receptor down regulator) for the treatment of tumor directly into tumor tissue."