The Efficacy of Insulin Degludec/Liraglutide as add-on Therapy in Controlling Glycaemia in Adults With Type 2 Diabetes Inadequately Controlled on Sulphonylurea With or Without Metformin Therapy

Inclusion Criteria:

• Subjects with type 2 diabetes mellitus

• HbA1c 7.0-9.0% (53-75 mmol/mol) (both inclusive)

• Subjects on stable daily dose of sulphonylurea (above or equal to half of the maxapproved dose according to local label) with or without metformin (above or equal to 1500 mg or max tolerated dose) for at least 90 days prior to screening visit (Visit 1)

• Body Mass Index (BMI) below or equal to 40 kg/m^2

Exclusion Criteria:

• Any use of oral anti-diabetic drugs (OADs) (other than SU in monotherapy or incombinationwith metformin) below or equal to 90 days prior to screening visit (Visit

• Use of any drug (other than SU in monotherapy or in combination with metformin), whichin the Investigators opinion could interfere with the blood glucose level (e.g.systemic corticosteroids)

• Previous treatment with glucagon-like peptide-1 (GLP-1) receptor agonist (e.g.exenatide, liraglutide)

• Treatment with any insulin regimen (short term treatment due to intercurrent illnessincluding gestational diabetes is allowed at the discretion of the Investigator)

• Screening calcitonin above or equal to 50 ng/l

• Personal or family history of medullary thyroid carcinoma (MTC) or multiple endocrineneoplasia type 2 (MEN2)

• Cardiovascular disorders defined as: congestive heart failure (New York HeartAssociation (NYHA) class III-IV), diagnosis of unstable angina pectoris, cerebralstroke and/or myocardial infarction within the past 52 weeks prior to screening visit (Visit 1) and/or planned coronary,carotid or peripheral artery revascularisationprocedures

• Proliferative retinopathy requiring acute treatment or maculopathy (macular oedema)according to the Investigator's opinion

• Subjects with a clinical significant, active (during the past 12 months) disease ofthe gastrointestinal, pulmonary, endocrinological (except for the Type 2 DiabetesMellitus),neurological, genitourinary or haematological system that in the opinion ofthe Investigator,may confound the results of the trial or pose additional risk inadministering trial product

• History of chronic pancreatitis or idiopathic acute pancreatitis