Tacrolimus and MMF as Post Grafting Immunosuppression After Conditioning With Flu TBI for HLA Matched Family Donor

Conditioning regimen: 1. Days - 4 to -2: Fludarabine 30 mg/m2/day IV. 2. Day 0: TBI 2.0 Gy at 6-7 cGy/min from a linear accelerator, followed by stem-cell infusion. TBI will preferably be administered between 7:00 a.m. and 1:00 p.m. to avoid proximity to tacrolimus/MMF administration. Immunosuppression: Day -3: Start tacrolimus at 0.06 mg/kg PO BID. Day 0: Start MMF at 15 mg/kg PO b.i.d. from day 0 (PM dose only).