Ruxolitinib Prior to Transplant in Patients With Myelofibrosis

Ruxolitinib (INC424) tablets will be started 60 days (day -65) prior to start of conditioning chemotherapy. The starting dose of Ruxolitinib will be determined according to baseline platelet count and will be modified according to platelet count at follow-up. The drug will be given in the maximum tolerated dose as defined in the protocol for 56 days, followed by 4 days of taper, and will be stopped completely at the planned start of conditioning therapy (starting on day -5) i.e. 5 days prior to stem cell infusion. The drug will be supplied as 5 mg tablets.