Is there a utility to initiating maintenance azacitidine therapy for a patient with a history of refractory AML who is now post-transplant?  

This is an interesting question and unfortunately, there is no solid answer for it. There have been some studies of aza post-SCT for adults with AML or MDS. Most of these were small and not randomized, and different dosing schedules were used, so it's hard to draw firm conclusions. The balance of th...