Efficacy and Safety of Semaglutide Once-weekly Versus Placebo in Drug-naïve Subjects With Type 2 Diabetes

Inclusion criteria

- For Japan only: Male or female, age above or equal to 20 years at the time of signing inform consent - Subjects diagnosed with type 2 diabetes and treated with diet and exercise for at least 30 days before screening - HbA1c 7.0 - 10.0 % (53 - 86 mmol/mol) (both inclusive) Exclusion Criteria: - Female who is pregnant, breast-feeding or intends to become pregnant or is of child-bearing potential and not using adequate contraceptive method (adequate contraceptive measures as required by local regulation or practice) throughout the trial including the 5 week follow-up period. United Kingdom: Adequate contraceptive measures are defined as established use of oral, injected or implanted hormonal methods of contraception, placement of an intrauterine device or intrauterine system, barrier methods of contraception (condom or occlusive cap with spermicidal foam/gel/film/cream/suppository), male sterilisation (where partner is sole partner of subject), or true abstinence (when in line with preferred and usual lifestyle) - Any chronic disorder or severe disease which, in the opinion of the investigator, might jeopardise subject's safety or compliance with the protocol - Treatment with any glucose lowering agent(s) in a period of 90 days prior to screening. An exception is short-term treatment (no longer than 7 days in total) with insulin in connection with inter-current illness - History of chronic or idiopathic acute pancreatitis - Screening calcitonin value above or equal to 50 ng/L (pg/mL) - Personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia syndrome type 2 (MEN 2) - Impaired renal function defined as eGFR (estimated glomerular filtration rate ) below 30 mL/min/1.73 m^2 per modification of diet in renal disease (MDRD) formula (4 variable version) - Acute coronary or cerebrovascular event within 90 days before randomisation - Heart failure, New York Heart Association class IV