A Trial Investigating the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of Subcutaneous NNC0143-0406 A 0.6 mmol/L in Subjects With Type 1 Diabetes

Inclusion criteria

• Male, aged 18-55 years (both inclusive) at the time of signing informed consent
• Subjects diagnosed (clinically) with type 1 diabetes mellitus at least 365 days prior to the day of screening
• Body mass index between 18.5 and 28.0 kg/m^2 (both inclusive)

Exclusion criteria

• Known or suspected hypersensitivity to trial product(s) or related products.
• Males who are sexually active and not surgically sterilised (vasectomy or otherwise) and their partners that are not using a highly effective contraception method, from randomisation until 90 days after dosing, such as double barrier contraception (e.g. condom and spermicide) or combination of either an oral contraceptive, a contraceptive patch, a diaphragm or intrauterine device, together with a physical barrier such as condom. Malesubjects must also agree to refrain from sperm donation from randomisation until 90 days after dosing
• History or presence of any clinically relevant respiratory, metabolic (including dyslipidaemia), renal, hepatic, gastrointestinal, endocrinological conditions (except conditions associated with diabetes mellitus)
• Subject who has donated any blood or plasma in the past month or more than 500 mL within 90 days prior to 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 in-patient period
• Recurrent severe hypoglycaemia (more than 1 severe hypoglycaemic event during the past 180 days) or hypoglycaemic unawareness as judged by the investigator or hospitalisation for diabetic ketoacidosis within the last 180 days