This is a single-center, retrospective cohort review that included patients aged 18 years or greater with a diagnosis of AML that received azacitidine or decitabine with or without VEN between June 1, 2017 and December 5, 2019 at The Ohio State University Comprehensive Cancer Center - The James Cancer Hospital. To be eligible for inclusion in the efficacy analysis, patients had to receive either 28 days of VEN or reach cycle 2, day 1 of azacitidine or decitabine. To be eligible for inclusion in the safety analysis, patients had to receive at least one dose of either azacitidine or decitabine and VEN, if applicable. Protected populations including pregnant or imprisoned patients, and patients enrolled on a clinical trial were excluded. This study protocol was approved by the Institutional Review Board. This study was conducted in compliance with the ethical standards of the responsible institution on human subjects as well as with the Helsinki Declaration.