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Investigation of the Impact of Different Application Volumes of Insulin Aspart in Subjects With Type 1 Diabetes

Type 1 Diabetes Clinical Trial

Official title:
A Single-center, Randomized, Controlled, 2-period Cross-over, Open-labelled Trial to Evaluate the Impact of Different Application Volumes on Pharmacokinetic and Pharmacodynamic Properties of Insulin Aspart in Subjects With Type 1 Diabetes

Clinical Trial Summary

Rationale: For the development of a closed loop system, faster insulin absorption after bolus administration could help to reduce the system's delay and thus increase patient safety. It has been shown that regular insulin absorption is faster when injecting insulin with a sprinkler needle (containing holes in the walls and being sealed at the tip). The current study will evaluate the impact of different application volumes on pharmacokinetic and pharmacodynamic properties of rapid acting insulin analogue (insulin aspart).

Objective: To compare the pharmacokinetic response (based on the time to maximum observed serum insulin concentration) and pharmacodynamic properties of rapid acting insulin aspart after subcutaneous injection of a defined dose (volume) at 1 versus 9 injection sites in patients with type 1 diabetes.

Study design: Monocentric, randomised, controlled, two-arm cross-over intervention study.

Population: Twelve type 1 diabetic subjects

Intervention: The investigational treatment is the subcutaneous administration of insulin aspart either as one bolus of 18 IU at one injection site or as 9 separately and simultaneously applied bolus of 2 IU each at 9 separate injection sites. Serum and plasma samples to assess pharmacodynamic and pharmacokinetic properties will be taken during an 8-hour clamp experiment. Patients will undergo both investigational treatments in a randomized order; between the two clamp visits there will be a wash-out period of 5-21 days.

Main study endpoint: Time to maximum observed serum insulin aspart concentration.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Pharmacokinetics/Dynamics Study, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Basic Science

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01399346
Study type Interventional
Source Medical University of Graz
Contact
Status Completed
Phase Phase 1
Start date April 2011
Completion date June 2011
View Details
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