To compare renal function (51Cr-EDTA clearance) 12 months posttransplant, in primary renal allograft recipients (from cadaveric donor) at low immunogenic risk, 0 DR mis-match, receiving immunosuppressive therapy with A) Zenapax® (5 doses), CellCept® (1.5 g bid., aiming for TDM for total trough concentrations of 2-6 mg/L) and prednisolone or B) Sandimmun Neoral® (full dose), CellCept® (1.0 g bid.) and prednisolone.