Research Study to Compare Three Doses of Semaglutide Tablets Taken Once Daily in People With Type 2 Diabetes

You may be eligible if

• Male or female, age above or equal to 18 years at the time of signing informed consent.
• Diagnosed with type 2 diabetes mellitus at least 180 days prior to the day of screening.
• HbA1c of 8.0-10.5% (64-91 mmol/mol) (both inclusive).
• BMI equal to or above 25 kg/m\^2
• Stable daily dose(s) for 90 days prior to the day of screening of any of the following treatment regimens:
• No more than 3 of the following oral anti-diabetic drugs and at least 1 marked with a \*:
• * Metformin (equal to or above1500 mg or maximum tolerated or effective dose).
• * Sulfonylureas (SU) (equal to or above half of the maximum approved dose according to local label or maximum tolerated or effective dose).
• * Sodium/glucose cotransporter 2 (SGLT2) inhibitors (maximum tolerated dose).
• Dipeptidyl peptidase-4 (DPP-4) inhibitors (maximally indicated dose as per local label).
• Subjects, on treatment with stable dose of DPP-4 inhibitors at inclusion, must be willing to discontinue DPP-4 inhibitor treatment at randomisation (with no wash-out).
• Renal impairment measured as estimated glomerular filtration rate (eGFR) value of below 30 mL/min/1.73 m\^2 according to Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) creatinine equation as defined by kidney disease improving global outcomes (KDIGO 2012) classification.
• Uncontrolled and potentially unstable diabetic retinopathy or maculopathy. Verified by a fundus examination performed within the past 90 days prior to screening or in the period between screening and randomisation. Pharmacological pupil-dilation is a requirement unless using a digital fundus photography camera specified for non-dilated examination.