- Patient has not been administered any other systemic chemotherapeutic drug (including Mylotarg) within 21 days prior to trial enrollment. (Hydroxyurea is permitted if indicated to control induction refractory disease, and intrathecal (IT) chemotherapy is allowed if indicated as maintenance treatment for previously diagnosed leptomeningeal disease (LMD), that has been in remission for at least 3 months prior to enrollment on this study).