Efficacy and Safety of Liraglutide Versus Sulphonylurea Both in Combination With Metformin During Ramadan in Subjects With Type 2 Diabetes

Inclusion Criteria: * \- Subjects diagnosed with T2DM and treated with metformin equal to or above 1000 mg/day and SU (gliclazide, glipizide or glyburide/glibenclamide at maximum tolerated dose (at least half maximum approved dose) or glimepiride at maximum tolerated dose (at least 2 mg/day)), both at a stable dose for at least 90 days prior to screening. Stable is defined as unchanged medication and dose * \- HbA1c 7.0-10.0% (53- 86 mmol/mol) (both inclusive) * \- Body Mass Index (BMI) equal to or above 20 kg/m\^2 * \- Subjects who have expressed their intention to fast (daytime, i.e. between sunrise and sunset) during Ramadan after receiving medical counselling regarding the risk of fasting Exclusion Criteria: * \- Any contraindication for successful and sustained fasting from a medical perspective at the discretion of the investigator (such as acute illness, severe hypoglycaemia within 90 days prior to screening, a history of recurrent hypoglycaemia, hypoglycaemia unawareness, ketoacidosis within 90 days prior to screening, hyperosmolar hyperglycaemic coma within 90 days prior to screening, subjects performing intense physical labour) * \- Any chronic disorder or severe disease which, in the opinion of the investigator might jeopardise subject's safety or compliance with the protocol * \- History of chronic pancreatitis or idiopathic acute pancreatitis * \- Screening calcitonin value equal to or above 50 ng/L * \- Personal or family history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia syndrome type 2 (MEN 2) * \- Impaired liver function, defined as alanine aminotransferase (ALAT) equal to or above 2.5 times upper normal limit (UNL) * \- Impaired renal function defined as estimated glomerular filtration rate (eGFR) below 60 mL/min/1.73 m\^2 per Modification of Diet in Renal Disease (MDRD) formula) * \- Any episode of unstable angina, acute coronary event, cerebral stroke/transient ischemic attack (TIA) or other significant cardiovascular event as judged by the investigator within 90 days prior to screening * \- Diagnosis of malignant neoplasm in the previous 5 years (except basal cell skin cancer or squamous cell skin cancer)