- Patients with T2DM with inadequate glycemic control (based upon fasting glucose measurements >=130 mg/dL and <=250 mg/dL) on metformin monotherapy or on metformin in dual combination with other glucose lowering agents (sulphonylurea [SU] or a meglitinide or a dipeptidyl peptidase-4 [DPP-4] inhibitor) are eligible for enrollment in the study.