Research Study to Compare a New Medicine "Fast-acting Insulin Aspart" to Another Medicine "Insulin Aspart" in Chinese People With Diabetes

Inclusion Criteria

• •Male or female, age above or equal to 18 years at the time of signing informed consent
• •Diagnosed with Diabetes Mellitus, Type 1 (T1DM) at least or equal to 1 year prior to screening or diagnosed with Diabetes Mellitus, Type 2 (T2DM) at least or equal to 5 years prior to screening
• •Treated with a basal-bolus insulin regimen or a premix insulin regimen at least or equal to 1 year prior to screening. Insulin regimen must be unchanged within 60 days prior to screening. A basal-bolus insulin regimen is defined as basal insulin once or twice daily and bolus insulin taken with meals at least thrice daily. A premix insulin regimen is defined as premix insulin twice or thrice daily
• •For subjects with T1DM: not treated with any oral anti-diabetes drugs (OADs) for at least 90 days prior to screening. For subjects with T2DM: not treated with any OADs or treated with 1-2 OADs within 90 days prior to screening. Allowed OADs are metformin, alpha-glucosidase inhibitor, sodium-glucose co-transporter-2 inhibitors (SGLT2i) and dipeptidyl peptidase-4 inhibitors (DPP4i). Change in OAD and dose prior to screening is allowed.
• •HbA1c 7.5-9.5% (both inclusive) as assessed by central laboratory at screening
• •Anticipated initiation or change in concomitant medications (for more than 14 consecutive days) known to affect weight or glucose metabolism (e.g. treatment with orlistat, thyroid hormones, or corticosteroids)