NNC0471-0119

The study is looking at the effect and safety of a new fast-acting insulin (NNC0471 0119) to people with type 1 diabetes when given by an insulin pump. The study tests how fast insulin NNC0471-0119 enters your bloodstream, how long it stays there and how much it lowers blood sugar. The new insulin NNC0471-0119 will be compared to insulin aspart. The participants will get each study medicine administered at separate clinic visits. The study will last for about 1-3 months.

This study is looking at the effect and safety of 3 formulations of the new rapid-acting insulin analogue NNC0471-0119, for the treatment of type 1 diabetes when given by insulin pump.
The study will test how 3 different formulations of insulin NNC0471-0119 are tolerated by the body, how they are transported in participants bloodstream, how long they stay there and how the blood sugar is lowered.
The 3 formulations of insulin NNC0471-0119 are given as one bolus on top of a constant insulin basal rate and compared to Faster Aspart (Fiasp®).
Participants will get 3 formulations of insulin NNC0471-0119 and Faster Aspart (Fiasp®) Insulin NNC0471-0119 is a new rapid-acting insulin designed to be used in an insulin pump. Faster Aspart (Fiasp®) is a globally used medication for the treatment of diabetes.
Participants will have each study medicine administered once via pump at separate study visits. This mean that participants will have a total of 4 dosing visits where participants will get a study medicine. Which study medicine participants get at what visit will be decided by chance.
The study will last 1-4 months. Participants will have 7 visits at the clinic, 4 of them will require an in-house stay of 3 consecutive days each.
During the in-house visits 2 intravenous (into the vein) cannulas will be inserted for blood sampling and infusions.
Women: Women cannot take part if they are of childbearing potential.