A Prospective Observational Study to Describe Clinical Outcomes, Treatment Patterns, Patients Characteristics Among Patients With HR+/HER2- Advanced BC Initiating Treatment With Risarg®, Piqray®, Endocrine Therapy or Chemotherapy in Routine Clinical Practice in Russia

This study was planned as a prospective multicenter NIS. This study was observational in nature and did not impose a therapy protocol, diagnostic/therapeutic interventions or a visit schedule. Patients with HR+/ HER2- advanced or metastatic BC that initiated treatment with ribociclib, alpelisib, mono endocrine therapy or chemotherapy were included in the study across seven Russian districts.