A Study of SHR6390 in Combination With Letrozole or Anastrozole in Patients With HR Positive and HER2 Negative Advanced Breast Cancer
Status: UNKNOWN
Study type: INTERVENTIONAL
Conditions: Advanced Breast Cancer
Interventions: DRUG: SHR6390 Tablets|DRUG: Placebo Tablets|DRUG: Letrozole or Anastrozole Tablets
Sponsor: Jiangsu HengRui Medicine Co., Ltd.