Adult patient w/ newly diagnosed Philadelphia chromosome +ve (Ph+) chronic myeloid leukemia (CML) in chronic phase; chronic, accelerated, myloid or lymphoid blast phase CML w/ resistance or intolerance to prior therapy including imatinib; Philadelphia chromosome +ve acute lymphoblastic leukemia (Ph+ ALL) w/ resistance or intolerance to prior therapy. Ped patients w/ newly diagnosed Ph+ CML in chronic phase or Ph+ CML-CP resistant or intolerant to prior therapy including imatinib; newly diagnosed Ph+ ALL in combination w/ chemotherapy.