Safety and Efficacy of S-707106 in Subjects With Type 2 Diabetes Mellitus and Inadequate Glycemic Control With Metformin Therapy

Serial pharmacokinetic (PK) assessments

Serial pharmacokinetic sampling at Visit 6 prior to dosing, at Visit 7 prior to dosing and at 0.5, 1, 2, 3, 4, 6, 8 and 24 hours after dosing, at Visit 8, at Visit 9, and Early Termination Visit

Time frame: 5 days

Sparse pharmacokinetic assessments

Sparse pharmacokinetic sampling at Visit 6 and Visit 7 prior to dosing, at Visit 6 or Visit 7 one additional post-dose sample, at Visit 8, at Visit 9, and Early Termination Visit

Time frame: 5 days

Percent of subjects with Hemoglobin A1c < 7.0% at Week 12

Hemoglobin A1c

Time frame: 12 weeks

Change from Baseline at Week 12 in: Fasting plasma glucose, 1,5-Anhydroglucitol, Fructosamine, Glycoalbumin, C-peptide, Beta-cell function and insulin resistance indices using Homeostatic Model Assessment, and Postprandial glucose test

Fasting plasma glucose, 1,5-Anhydroglucitol, Fructosamine, Glycoalbumin, C-peptide, Beta-cell function and insulin resistance indices using Homeostatic Model Assessment, and Postprandial glucose test

Time frame: Baseline and at 12 weeks

Safety assessments

Safety will be assessed by monitoring of treatment-emergent adverse events, serious adverse events, treatment-emergent adverse events leading to study drug discontinuation, clinical laboratory evaluations, vital signs, 12-lead electrocardiograms (ECGs), adrenal axis hormones, and treatment-emergent adverse events of hypoglycemia, hyperglycemia, confirmed hypoglycemia or hyperglycemia