A Real-world Study Observing Treatment Patterns and Clinical Results for Patients in China With Hormone Receptor-positive, HER2-negative Metastatic Breast Cancer.
The study aims to describe demographics, clinical characteristics, genetic test diagnosis, treatment patterns, and clinical outcomes in HR+/HER2- (including HER2-low, HER2-ultralow, and HER2-null) unresectable or metastatic breast cancer patients in China; and exploratory describe clinical outcomes by treatment regimens, also report the QoL and other patient-report outcomes (PRO) and to assess healthcare resource utilization (HCRU) and costs overall and by LoT.