This study will be conducted to look at the effect of decreased kidney function when getting one dose of insulin 287 and to guide dosing recommendations in people who have altered kidney function. Insulin 287 works in the body for a long time (long-acting). It is taken once a day by injecting under the skin. The main target patient group for insulin 287 is people with type 2 diabetes. Participants will get just one injection. The study will last for up to 80 days. Participants will have 11 out-patient visits with the study doctor and one in-house visit of 3 days and 2 nights. Participants will have some assessments like several blood draws, electrocardiograms (ECGs), urine collections and capillary blood sugar tests. Participants cannot take part if they are hypersensitive to the study medicine, if they received any investigational product within 90 days before screening, or if they have certain diseases e.g. HIV or hepatitis or heart problems. Participants have to take photos if they experience any allergic reactions and send them to their study doctor. Participants' kidney function will be examined by a so called "Iohexol test".

Inclusion Criteria:

• Male or female, aged 18-75 years (both inclusive) at the time of signing informed consent.
• Body mass index between 18.5 and 32.0 kg/sqm (both inclusive).
• Meeting the pre-defined Glomerular Filtration Rate (GFR) values based on a measured GFR using an exogenous substance as tracer (renal group 1-4) or being in treatment with haemodialysis (renal group 5).

Exclusion Criteria:

• Known or suspected hypersensitivity to trial product or related products.
• Impaired liver function defined as Alanine Aminotransferase (ALT) greater than or equal to 2.5 times or Bilirubin greater than 1.5 times upper limit of normal at screening.
• Drugs known to affect creatinine clearance including cephalosporin and aminoglycoside antibiotics, flucytosine, cisplatin, cimetidine and trimethoprim within 14 days or 5 half-lives prior to the day of dosing of IMP.
• Renal group 1 (healthy subjects) exclusively: Unwilling to avoid use of prescription medicinal products or non-prescription drugs, except routine use of vitamins, occasional use of paracetamol, topical medication and contraceptives, within 14 days prior to the day of dosing.
• Renal Group 2-5 (renal impairment) exclusively: 1) Any disorder, except for conditions associated with renal impairment in the groups of subjects with reduced renal function, which in the investigator's opinion might jeopardise subject's safety, evaluation of results, or compliance with the protocol. Subjects with heart failure of functional class III-IV according to New York Heart Association (NYHA), subjects with Chronic obstructive pulmonary disease (COPD) grade 4 according to Global Initiative on Obstructive Lung Disease (GOLD), subjects with asthma step 5 according to Global Initiative for Asthma (GINA), subjects diagnosed with diabetes, subjects with uncontrolled treated/untreated hypertension (systolic blood pressure greater than or equal to 180 mmHg and /or diastolic blood pressure greater than or equal to 100 mmHg assessed in supine position) and other co-morbidities in terminal stages or which are decompensated or unstable should not be included in the study. 2) Subject requiring haemodialysis treatment unable or unwilling to undergo haemodialysis scheduled according to the standard clinical regimen throughout the trial period.

According to the Novo Nordisk disclosure commitment on novonordisk-trials.com