On the second day at the Annual Meeting of the American Society of Hematology 2014, Francois-Xavier Mahon, MD, PhD, Bordeaux Hospital, INSERM 1035, Bordeaux, France, shared the results from the European LeukemiaNet Stop TKI (EURO-SKI) study; the trial used tyrosine kinase inhibitors (TKIs) in CML to define prognostic markers to increase the rate of patients in durable deep molecular response after stopping TKI.