Baseline Characteristics N %
Patients enrolled 32  
Age at enrollment, years Mean Range 70 35-92  
Race/Ethnicity White 100
ECOG Performance Status 0 1 2 2 11 19 6 35 59
Sites of metastatic disease Bone only Visceral with/without bone 12 20 37 63
Hormone receptor status ER +/PR + ER +/PR - 25 7 78 22
Histology Lobular Non-Lobular 8 24 25 75
Prior metastatic therapy (endocrine and non-endocrine) Mean Range 2 2-6  
Prior endocrine therapy (non-AI) 25 78
Table 1: Baseline Characteristics of Patients.