The FMS-like tyrosine kinase 3 internal tandem duplication (FLT3-ITD) gene is one of the most frequently observed genetic alterations in acute myeloid leukemia (AML), with an incidence of about 20% to 30%. FLT3-ITD is significantly associated with a poor outcome, and offering an allogeneic hematopoietic cell transplantation (allo-HCT) is recommended for patients harboring this mutation. Sorafenib is a tyrosine kinase inhibitor active against RAF, VEGF, and FLT3-ITD. It has been used in an off-label fashion in FLT3-ITD AML.