MAGE of Anagliptin Compared With Sitagliptin With Type 2 Diabetes Mellitus

Inclusion Criteria: * Type 2 DM * Metformin monotherapy for more than 8 weeks and metformin ≥ 1000 mg daily for more than 8 weeks. * 6.5% ≤HbA1c\< 8.5% * Agreed Therapeutic Lifestyle change during the study period * Obtained Informed Consent Form Exclusion Criteria: * Type 1 diabetes mellitus, * History of intestinal obstruction * NYHA class III to IV congestive heart failure, * Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) \> 3 X upper limit of normal (ULN) or Total bilirubin \> 3 X ULN * Creatinine clearance (CrCl)\* \< 50 mL/min * Thyroid-stimulating hormone (TSH) ≥ 1.5 X ULN * Allergic history for Anagliptin 또는 sitagliptin * Being pregnant or nursing or suspected of being pregnant, or * History of participation in other clinical studies in the preceding 3 months.