Comparative Real World Tumor Response in Pre-menopausal Metastatic Breast Cancer Patients Treated With Palbociclib + Aromatase Inhibitor or Aromatase Inhibitor Alone
Status: COMPLETED
Study type: OBSERVATIONAL
Conditions: Metastatic Breast Cancer
Interventions: DRUG: Palbociclib + aromatase inhibitor|DRUG: Aromatase inhibitor
Sponsor: Pfizer