Graft loss was defined as either functional loss or physical loss (nephrectomy). Functional loss was defined as a sustained level of serum creatinine (SCr) ≥ 6.0 milligrams per deciliter (mg/dL) or 530 micromolar per liter (μmol/L) as determined by the central laboratory for ≥ 4 weeks or ≥ 56 consecutive days of dialysis or impairment of renal function to such a degree that the participant underwent retransplant.

Measured glomerular filtration rate (mGFR) is the direct measurement of renal function and was assessed by measurement of the clearance of a true glomerular filtration marker (non-radiolabeled iothalamate) using a validated procedure. A GFR of 60 mL/min/1.73 m\^2 was used as the approximate equal of the threshold values of serum creatinine (SCr) of 1.5 mg/dL. A change in GFR of at least 10 mL/min/1.73 m\^2 was used as the approximate change in SCr of at least 0.3 mg/dL. The change component of the composite renal endpoint was assessed from Month 3 to Month 12, since post-transplant renal function is largely stable by Month 3.

Acute rejection was defined as a clinico-pathological event requiring clinical evidence and biopsy confirmation. Clinical evidence was defined if either a or b was satisfied: a: an unexplained rise of serum creatinine ≥ 25% from baseline creatinine; b: an unexplained decreased urine output; or fever and graft tenderness; or a serum creatinine that remains elevated within 14 days post-transplantation and clinical suspicion of acute rejection exists. Allograft biopsies were evaluated by a blinded central independent pathologist using Banff 97 working classification of kidney transplant pathology. Banff 97 diagnostic category for renal allograft biopsies is an international standardized histopathological classification. AR was defined by a renal biopsy demonstrating a Banff 97 classification of Grade IA or greater, with higher scores indicating more severe rejection. Only the episode with the highest Banff grade for each participant was counted.