Effect of Dapagliflozin on 24-hour Blood Glucose in T2DM Patients Inadequately Controlled With Either Metformin Or Insulin

Inclusion Criteria: * Type 2 diabetes mellitus (T2DM) * Treated with either stable dose of metformin alone \> or = to 1500mg/day or stable dose of insulin \> or = to 30 units/day and up to 2 OAD medications for at least 8 weeks * Hemoglobin A1c (HbA1c) 7.5% to 10.5% at screening * Body mass index (BMI) \< or = to 45 kg/m2 Exclusion Criteria: * For patients who enter the study taking a stable dose of metformin, history of taking OAD medications other than metformin during the 8 weeks prior to screening or have been on insulin therapy within 1 year of screening * For patients who enter the study taking insulin, history of taking any other therapy outside of the stable insulin and up to 2 OAD medications for 8 weeks prior to screening. * Use of sulfonylureas during the 8 weeks prior to screening * Prior exposure to dapagliflozin or any sodium-glucose co-transporter 2 (SGLT-2) inhibitor * Ingestion of any medication know to affect glucose metabolism for \>7 consecutive days during the 3 months prior to screening * Ingestion of prescription or over the counter weight loss medication during 3 months prior to screening