The study will determine the safety, tolerability, recommended Phase 2 dose (RP2D) and preliminary efficacy of BGB-11417 as monotherapy and in combination with azacitidine in participants with acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS)or MDS/myeloproliferative neoplasm (MPN) .
AML, nonacute promyelocytic leukemia
MDS
MDS/MPN
Eastern Cooperative Oncology Group performance status of 0 to 2.
A diagnosis of acute promyelocytic leukemia.
History of prior malignancy, with the exception of either a history of MDS or MDS/MPN that has transformed to AML, or other prior malignancy that was treated with a full curative intent and no evidence of recurrence within the past 2 years (eg, localized skin cancer, superficial bladder cancer, carcinoma in situ of the cervix or breast, or localized Gleason score ≤ 6 prostate cancer)
Antecedent MPN including myelofibrosis, essential thrombocytosis, polycythemia vera, or chronic myelogenous leukemia with or without BCR-ABL1 translocation and AML with BCR-ABL1 translocation.
Prior therapy with a B-cell lymphoma-2 inhibitor