Comparing Efficacy and Safety of Insulin Degludec/Insulin Aspart and BIAsp 30 in Subjects With Type 2 Diabetes

Inclusion Criteria:

• Informed consent obtained before any trial-related activities. Trial-relatedactivities are any procedures that are carried out as part of the trial, includingactivities to determine suitability for the trial

• Male or female at least 18 years of age

• Type 2 diabetes mellitus (diagnosed clinically) for at least 6 months

• Insulin treated subjects on current treatment: basal insulin, premixed insulin or aself-mixed insulin regimen, all administered once daily (OD) or BID with or withoutmetformin. The treatment regimen should have remained unchanged for at least 8 weeksprior to randomisation

• HbA1c 7.0-10.0 % (both inclusive) by central laboratory analysis

• Body mass index (BMI) equal or below 40.0 kg/m^2

Exclusion Criteria:

• Treatment with sulphonylureas, meglitinides, DPP-4 inhibitors, alpha-glycosidaseinhibitors within 8 weeks prior to screening (Visit 1) or thiazolidinediones (TZDs) orGLP-1 receptor agonists within 12 weeks prior to screening (Visit 1)

• Anticipated change in concomitant medication known to interfere significantly withglucose metabolism, such as systemic corticosteroids, beta-blockers and monoamineoxidase (MAO) inhibitors

• Anticipated significant lifestyle changes during the trial according to the discretionof the investigator, e.g. shift work (including permanent night/evening shiftworkers), as well as highly variable eating habits

• Cardiovascular disease, within the last 6 months prior to screening (Visit 1), definedas: stroke; decompensated heart failure NYHA1 class III or IV; myocardial infarction;unstable angina pectoris; or coronary arterial bypass graft or angioplasty

• Any clinically significant disease or disorder, except for conditions associated withtype 2 diabetes, which in the investigator's opinion could interfere with the resultsof the trial

• Previous participation in this trial. Participation is defined as screened.

• Known or suspected hypersensitivity to trial products or related products