The primary aim of the study was to compare the efficacy of the procedure in terms of event-free survival between patients receiving cyclosporine (CsA) plus either alemtuzumab (CAMPATH-1H ) or methotrexate (MTX) after matched related donor allo-reduced intensity conditioning. Secondary aims were: 1. To compare the incidence of infections and transplant-related mortality between the two arms; 2. to compare the incidence of acute and chronic GVHD 3. to evaluate hematologic and immunologic reconstitution and evolution of chimerism and residual disease.