The present invention includes methods for treating a FLT3 mutated proliferative disorder comprising: measuring expression of a mutated FLT3 and a one or more driver mutations in a
nuclear transport protein that results in a loss of localization of the
nuclear transport protein in a sample obtained from a
tumor sample obtained from the patient, wherein the presence of the one or more genetic abnormalities indicates that the patient has a
poor prognosis; and administering to the patient a therapeutically effective amount of Crenolanib or a pharmaceutically acceptable salt thereof, wherein the Crenolanib increases a chance of survival of the patient having both the mutated FLT3 and
mutation in NPM1 or NUP98, wherein the Crenolanib, as shown below, is administered to a subject suffering from said disorder: