A Research Study of How Faster-acting Insulin Aspart Moves Into, Through, and Out of the Body and How it Works in the Body When Given Through an Insulin Pump to People With Type 1 Diabetes

A Research Study of How Faster-acting Insulin Aspart Moves Into, Through, and Out of the Body and How it Works in the Body When Given Through an Insulin Pump to People With Type 1 Diabetes

A Trial Investigating the Pharmacokinetic and Pharmacodynamic Properties of Faster-acting Insulin Aspart When Administered as a Bolus in a Continuous Subcutaneous Infusion Regimen in Subjects With Type 1 Diabetes

The aim of the study is to compare the pharmacokinetics (i.e. the course of the blood concentrations of the administered trial drug) of faster-acting insulin aspart (faster aspart), and the currently marketed formulation of insulin aspart (NovoRapid®) when given as a bolus using an insulin pump in people with type 1 diabetes. The pharmacodynamic response (i.e. the course of the blood sugar lowering effect of the administered trial drug) and the safety and tolerability of faster aspart and NovoRapid® will also be assessed. The participants will be in the study for approx. 21 days. Each participant will have 5 visits to the clinic, with an overnight stay at both dosing visits. Participants will have a number of tests, and they will have to give blood and urine samples.

Each participant will have 2 dosing visits (faster aspart and insulin aspart), the order decided by lottery

Each participant will have 2 dosing visits (faster aspart and insulin aspart), the order decided by lottery

In a euglycaemic clamp setting each participant will receive a priming dose of 0.08 U/kg body weight, followed by a continuous basal rate of 0.02 U/kg body weight/h and finally a bolus dose of 0.15 U/kg body weight on top of the basal rate

In a euglycaemic clamp setting each participant will receive a priming dose of 0.08 U/kg body weight, followed by a continuous basal rate of 0.02 U/kg body weight/h and finally a bolus dose of 0.15 U/kg body weight on top of the basal rate

Continuous subcutaneous infusion related area under the insulin aspart curve, baseline corrected and based on concentrations from 0 to 30 min

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration measured at 56 times during 24 hours

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration measured at 56 times during 24 hours

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration measured at 56 times during 24 hours

Continuous subcutaneous infusion related area under the insulin aspart curve, baseline corrected and based on concentrations from 0 to 15 min.

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration measured at 56 times during 24 hours

Continuous subcutaneous infusion related area under the insulin aspart curve, baseline corrected and based on concentrations from 0 to 1 hour

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration measured at 56 times during 24 hours

Continuous subcutaneous infusion related area under the insulin aspart curve, baseline corrected and based on concentrations from 0 to 1,5 hour

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration measured at 56 times during 24 hours

Continuous subcutaneous infusion related area under the insulin aspart curve, baseline corrected and based on concentrations from 0 to 2 hours

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration measured at 56 times during 24 hours

Continuous subcutaneous infusion related area under the insulin aspart curve, baseline corrected and based on concentrations from 0 to first time the curve is back to baseline

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration measured at 56 times during 24 hours

Continuous subcutaneous infusion related area under the insulin aspart curve, baseline corrected and based on concentrations from 2 hours to first time the curve is back to baseline

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration measured at 56 times during 24 hours

Continuous subcutaneous infusion related time from bolus to late 50% of max insulin aspart concentration

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration measured at 56 times during 24 hours

Continuous subcutaneous infusion related time from bolus to max baseline corrected insulin aspart concentration

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration measured at 56 times during 24 hours

Continuous subcutaneous infusion related time from bolus administration to 50% of max baseline corrected Glucose Infusion Rate

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration measured at 56 times during 24 hours

Continuous subcutaneous infusion related time from bolus administration to max of baseline corrected Glucose Infusion Rate

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration recorded approximately 57 times during 24 hours

Continuous subcutaneous infusion related area under the glucose infusion rate curve, baseline corrected and based on concentrations from 0 to 30 min

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration recorded approximately 57 times during 24 hours

Continuous subcutaneous infusion related area under the glucose infusion rate curve, baseline corrected and based on concentrations from 0 to 1 hour

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration recorded approximately 57 times during 24 hours

Continuous subcutaneous infusion related area under the glucose infusion rate curve, baseline corrected and based on concentrations from 0 to 1,5 hour

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration recorded approximately 57 times during 24 hours

Continuous subcutaneous infusion related area under the glucose infusion rate curve, baseline corrected and based on concentrations from 0 to 2 hours

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration recorded approximately 57 times during 24 hours

Continuous subcutaneous infusion related area under the glucose infusion rate curve, baseline corrected and based on concentrations from 0 to first time the curve is back to baseline

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration recorded approximately 57 times during 24 hours

Continuous subcutaneous infusion related area under the glucose infusion rate curve, baseline corrected and based on concentrations from 2 hours to first time the curve is back to baseline

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration recorded approximately 57 times during 24 hours

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration recorded approximately 57 times during 24 hours

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration recorded approximately 57 times during 24 hours

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration recorded approximately 57 times during 24 hours

Continuous subcutaneous infusion related time from bolus to late 50% of max baseline corrected glucose infusion rate

Day of dosing: day 1 visit 2, day 1 visit 3 (7-14 days after day 2 of visit 2), based on concentration recorded approximately 57 times during 24 hours

Inclusion Criteria: Male or female aged 18 - 64 years (both inclusive) at the time of signing informed consent. Type 1 diabetes mellitus (as diagnosed clinically) for 12 months or longer. Body mass index 18.5 - 28.0 kg/sqm (both inclusive). Treated with multiple daily insulin injections or continuous subcutaneous insulin infusion (CSII) for 12 months or longer. Exclusion Criteria: Subject who has donated any blood or plasma in the past month or more than 500 mL within 3 months prior to screening. Smoker (defined as a subject who is smoking at least one cigarette, cigar or pipe daily). Not able or willing to refrain from smoking and use of nicotine substitute products during the inpatient period.