A Study to Assess the Safety and Efficacy of ASP1941 in Combination With Dipeptidyl Peptidase-4 (DPP-4) Inhibitor in Type 2 Diabetic Patients

A Study to Assess the Safety and Efficacy of ASP1941 in Combination With Dipeptidyl Peptidase-4 (DPP-4) Inhibitor in Type 2 Diabetic Patients