Adults w/ chronic, accelerated or blast phase chronic myeloid leukaemia who are resistant to dasatinib or nilotinib; who are intolerant to dasatinib or nilotinib & for whom subsequent treatment w/ imatinib is not clinically appropriate; or who have T315I mutation. Adults w/ Philadelphia chromosome +ve acute lymphoblastic leukaemia who are resistant to dasatinib; who are intolerant to dasatinib & for whom subsequent treatment w/ imatinib is not clinically appropriate; or who have T315I mutation.