IDH2 and acute myeloid leukemia: In a similar trial of enasidenib for IDH2-mutated, relapsed/refractory AML that enrolled 29 patients following allo-HCT, the overall response rate (CR, CRi, CRp, or bone marrow CR) among post-transplant patients was 34.5% compared to 39.5% among patients without a history of transplant (86).