A Study to Evaluate the Efficacy and Safety of Sitagliptin and MK0431A in Comparison to a Commonly Used Medication in Patients With Type 2 Diabetes (0431-068)(COMPLETED)

A Phase III Randomized, Active-Comparator (Pioglitazone) Controlled Clinical Trial to Study the Efficacy and Safety of Sitagliptin and MK0431A (A Fixed-Dose Combination Tablet of Sitagliptin and Metformin) in Patients With Type 2 Diabetes Mellitus

The purpose of this study is to evaluate the efficacy and safety of sitagliptin and MK0431A in comparison to a commonly used medication in patients with type 2 diabetes.

Inclusion Criteria:

• Patients between the ages of 18 and 78 with type 2 diabetes mellitus
• Patient has not been on any antihyperglycemic agent (Insulin or oral) in the last 3 months

Exclusion Criteria:

• Patient has a history of type 1 diabetes mellitus or a history of ketoacidosis
• Patient has previously been treated with sitagliptin or has previously been in a study using a DPP-4 inhibitor