Treatment Patterns and Outcomes of Patients With Metastatic ER+/HER-2− Breast Cancer: A Multicountry Retrospective Medical Record Review

Patients prescribed endocrine therapy had longer TTP and OS than patients prescribed chemotherapy in the first- and second-line settings. Disease progression was less than a year regardless of treatment type and line of therapy, indicating a need for treatments that delay progression without affecting quality of life among these patients.