A 72-year old woman was diagnosed with sAML...Molecular analysis identified a new JAK2 V617F mutation….She was started on 5-azacitidine and venetoclax... During the first cycle of the combination she rapidly cleared her PB blasts. Treatment was continued with a second cycle....AML and underlying MDS/MPN reported here showed rapid responses to the combination of 5-azacitidine and venetoclax even with slow ramp-up.