initial dose of imatinib (dose level 1) was 400 mg bid was administered orally on a continuous daily schedule and was not escalated during the study

six possible doses of Nilotinib (100 mg once daily (qd), 200 mg qd, 400 mg qd, 200 mg bid, 300 mg bid, and 400 mg bid). four possible doses of Imatinib (0 mg, 400 mg qd, 600 mg qd, and 400 mg bid).the initial dose of nilotinib (dose level 1) was 200 mg qd and could have been escalated up to 400 mg bid

Nilotinib 50 mg and 200 mg gelatin capsules and Imatinib 100 mg and 400 mg film-coated tablets in bottles.. Medication labels for each study drug complied with the legal requirements of each country, were printed in the local language.

Assessed by AE evaluation, including safety laboratory and cardiac safety (ECG, cardiac enzymes, ECHO) measures.

Assessment of tumor response will be made based on modified RECIST criteria.