The purpose of this study is to address the pharmacokinetic (PK) profiles of everolimus and tacrolimus in combination in de novo kidney transplant recipients, comparing 1.5 and 3 mg per day of everolimus in fixed doses. For comparison purposes, pharmacokinetic profiles will be performed at first dose (abbreviated), 4th day, 14th day, and 42nd day post-transplantation.

To address the pharmacokinetic profiles of everolimus and tacrolimus in combination in de novo kidney transplant recipients, comparing 1.5 and 3 mg per day of everolimus in fixed doses. For comparison purposes, pharmacokinetic profiles will be performed at first dose (abbreviated), 4th day, 14th day, and 42nd day post-transplantation. Patients will receive triple therapy steroids, tacrolimus and everolimus. Tacrolimus will be administered at a dose of 0.15 mg/kg/day to achieve 10-15 ng/ml 14 days, and 5-10 thereafter. During the first 6 weeks (the PK study period) everolimus will be assigned to fixed dose of 0.75 or 1.5 mg bid. After day 42, everolimus will be adjusted for 3-8 ng/ml and tacrolimus minimized to optimize graft function. Efficacy and safety parameters at 6 months post-transplantation will be secondary endpoints.

Inclusion Criteria:

• Kidney transplant recipients aged 18-65 years old with a presumed immediately functioning graft

Exclusion Criteria:

• Non-functioning kidneys