Comparison of Clinical Efficacy Between Letrozole + Ribociclib and Fulvestrant + Letrozole + Ribociclib in Hormone Receptor Positive, HER2 Negative Metastatic Breast Cancer
Status: RECRUITING
Study type: INTERVENTIONAL
Conditions: Metastatic Breast Cancer
Interventions: DRUG: Fulvestrant plus AI plus ribociclib|DRUG: AI plus ribociclib
Sponsor: Korea University Guro Hospital