A Research Study to See How Much CagriSema Lowers Blood Sugar and Body Weight Compared to Tirzepatide in People With Type 2 Diabetes Treated With Metformin, SGLT2 Inhibitor or Both

Inclusion Criteria

• •Male or female (sex at birth).
• •Age 18 years or above at the time of signing the informed consent.
• •Diagnosed with type 2 diabetes mellitus greater than or equal to (\>=) 180 days before screening.
• •Stable daily dose(s) \>= 90 days before screening of any of the following antidiabetic drug(s) or combination regimen(s) at effective or maximum tolerated dose as judged by the investigator:
• •Metformin
• •sodium-glucose co-transporter 2 inhibitor (SGLT2i)
• •Glycated haemoglobin (HbA1c) 7.0-10.5 percent (53-91 millimoles per mol \[mmol/mol\]) (both inclusive) as determined by central laboratory at screening.
• •Body mass index (BMI) \>= 30 kilogram per square meter (kg/m\^2) at screening. BMI will be calculated in the electronic case report form (eCRF) based on height and body weight at screening.
• •Uncontrolled and potentially unstable diabetic retinopathy or maculopathy. Verified by an eye examination performed within 90 days before 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.