Study design.
Abbreviations: PAN, panobinostat; IDA, idarubicin; Ara-C, cytarabine; D, day; MWF, Monday Wednesday and Friday; MTD, maximum tolerated dose; R2PD, recommended dose for phase 2 studies; CR, complete remission; CRi, complete remission with incomplete blood count recovery.
Primary AML was defined as newly diagnosed disease according to World Health Organization criteria of with ≥ 20% of bone marrow blasts by bone marrow aspiration or biopsy and the patient had not been treated for AML.
Secondary AML was defined as treatment-related AML, or AML arising from previously diagnosed myelodysplasia (MDS) or other antecedent hematologic disorders (AHDs).