Efficacy and Safety of FIAsp in a Basal-bolus Regimen Versus Basal Insulin Therapy, Both in Combination With Metformin in Adult Subjects With Type 2 Diabetes

Inclusion criteria

• Type 2 diabetes (diagnosed clinically) for at least 6 months prior to the screening visit (Visit 1)
• Current treatment with once daily insulin detemir, insulin glargine or human isophane insulin, NPH for at least 3 months prior to the screening visit (Visit 1)
• Current treatment with a) metformin with unchanged dosing for at least 3 months prior to screening (visit 1). The metformin dose must be at least 1000 mg or b) metformin in combination with sulfonylurea (SU) or glinide or Dipeptidyl peptidase-IV inhibitors and/or alpha-glucosidase inhibitors (AGI) with unchanged dosing for at least 3 months prior to screening (visit 1). The metformin dose must be at least 1000 mg
• HbA1c by central laboratory a) 7.5-9.5% (58 - 80 mmol/mol) (both inclusive) in the metformin group at the screening visit (Visit 1) or b) 7.5-9.0% (58 - 75 mmol/mol) (both inclusive) in the metformin + other oral antidiabetic drug (OAD) (sulphonylurea (SU), glinide, dipeptidyl peptidase-IV (DDP-IV) inhibitors, alpha-glucosidase inhibitors (AGI) combination group at the screening visit (Visit 1)
• Body mass index (BMI) equal or less than 40.0 kg/m^2

Exclusion criteria

• Any use of bolus insulin, except short-term use due to intermittent illness (no longer than 14 days of consecutive treatment) and not within 3 months prior to the screening visit (Visit 1)
• Use of Glucagon-like peptide-1 (GLP-1) agonists and/or Thiazolidinediones (TZD) within the last 3 months prior to screening (visit 1)
• Recurrent severe hypoglycaemia (more than one severe hypoglycaemic event during the last 12 months) or hypoglycaemic unawareness as judged by the Investigator, or hospitalisation for diabetic ketoacidosis during the previous 6 months prior to screening (Visit 1)