- The study will include a screening period (from Day 0-14) with two visits at least 7 days apart to assess eligibility of patients that are chelation naïve or on a prior iron chelator treatment other than DFX. For Patients on DFX treatment prior to study entry only one screening visit (screening visit 1) will occur to determine eligibility. Any current chelation therapy except deferasirox will be discontinued to undergo a 5-day washout period prior to commencing a 24 week treatment period with crushed deferasirox FCT.