1. Diagnosis of one of the following: 1) Patients >/= 60 years of age with previously untreated Ph-positive ALL [either t(9;22) and/or BCR-ABL positive] (includes patients initiated on first course of hyper-CVAD before cytogenetics known) or 2) Patients >/= 60 years of age with previously treated Ph-positive ALL, after 1-2 courses of chemotherapy with or without other TKIs. If they achieved CR, they are assessable only for event-free and overall survival, or If they failed to achieve CR, they are assessable for CR, event-free, and overall survival or 3) Patients >/= 18 years of age with relapsed/refractory Ph-positive ALL