Treatment Patterns in Castrate Resistant Prostate Cancer Patients With Bone Metastases in a Medicare Population

Inclusion Criteria:

First diagnosis for bone metastases for members diagnosed with prostate cancer found in the claims data during the identification period
Members age ≥ 55 to 89 years at index
Medicare members with medical and pharmacy coverage; and
Continuously enrolled during the pre- and post-index periods.

Exclusion Criteria:

Member with diagnosis of any other cancer (excluding melanoma (ICD-9 172.x) and other metastases (ICD-9 198.x)) before the index date; and
Members age ≥ 89 years of age at index date