3. Physical and Laboratory Test Findings a) Fasting plasma glucose (FPG) > 255 mg/dL (14.2 mmol/L) at screening will exclude the patient. b) Diabetic ketoacidosis (DKA) within 6 months of study entr1) Target Disease Exceptions a) Current use of the following medications : i) Six months: insulin. ii) Four months: thiazolidinediones. iii) Two months: any other antidiabetic treatment iv) Any previous use of DPP4-inhibitor and/or incretin mimetics b) Current use of prescription or non-prescription weight loss drugs and their use within 3 months of screening.