Safety and Efficacy Study of JTT-130 in Obese Type 2 Diabetic Patients

Inclusion Criteria: 1. Have type 2 diabetes; 2. Body mass index (BMI) of \> 27.0 kg/m2 and ≤ 45.0 kg/m2; 3. Are either drug naïve with respect to hypoglycemic agents OR are currently being treated with metformin alone or in combination with a sulfonylurea. Metformin and sulfonylurea dosing must be stable. Exclusion Criteria: 1. Females who are pregnant or breast-feeding 2. Known medical history or presence of type 1 diabetes, pancreatitis, unstable or rapidly progressing retinopathy, nephropathy or neuropathy; 3. Acute coronary syndrome or uncontrolled hypertension; 4. Does not meet medication restriction criteria, as described in the protocol.