A Trial to Investigate Different Needle Features Assessed by Comparing Insulin Aspart Pharmacokinetic Profiles

Inclusion Criteria:

• Informed consent obtained before any trial-related activities. Trial-related activities are any procedures that are carried out as part of the trial, including activities to determine suitability for the trial
• Male, age at least 18 years at time of signing informed consent
• Considered generally healthy upon completion of medical history, physical examination, analysis of laboratory safety variables, vital signs and ECG (electrocardiogram), as judged by the investigator
• Body mass index (BMI) 28-39.9 kg/m^2 (overweight to obese)
• Caucasian

Exclusion Criteria:

• Male of reproductive age who or whose partner(s) is not using adequate contraceptive methods (adequate contraceptive measures as required by local regulation or practice)
• Non-fasting blood glucose test with blood glucose values above 11.1 millimol per liter (mmol/L)
• HbA1c (Glycosylated Haemoglobin) equal to or above 6.5%
• Known active or in-active skin disease in the injection area or that could affect pain perception
• History of deep leg vein thrombosis or repeated episodes of deep leg vein thrombosis in 1st degree relatives (parents, siblings or children) as judged by the investigator
• Use of any prescription or non-prescription medication, including herbal products and nonroutine vitamins, within the last 2 weeks before screening
• Smoker (defined as a subject who is smoking more than 5 cigarettes or the equivalent per day) who is not able or willing to refrain from smoking or use of nicotine gum or transdermal nicotine patches during the inpatient period
• Known or suspected abuse of alcohol (defined as regular intake of more than 14 units weekly for men where 1 unit equals 300 milliliter (mL) of beer, 100 mL of wine, or 25 mL of distilled spirits)
• Positive result of an alcohol breath test
• Known or suspected drug/chemical substance abuse within 1 year from screening