Pharmacokinetics of Vildagliptin in Mild, Moderate and Severe Renal Impaired Patients

Inclusion Criteria: * Patients with mild (CrCl from 50 to ≤80 ml/min), moderate (CrCl from 30 to \<50 ml/min) and severe (CrCl of \<30 ml/min) renal function, preferably type 2 diabetic and matching healthy volunteers CrCl of \>80 ml/min Exclusion Criteria: * Type 1 diabetes, diabetes that is a result of pancreatic injury, or secondary forms of diabetes, acute metabolic diabetic complications, treatment of a DPP-4 inhibitor 30 days prior to baseline, renal transplant history Other protocol-defined inclusion/exclusion criteria may apply