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Absorption of Insulin Following Subcutaneous Bolus Administration With Different Bolus Durations

Type 1 Diabetes Clinical Trial

Official title:
Subcutaneous Insulin Absorption Following Bolus Administrations With an Insulin Pump - Comparison of Bolus Administrations With Different Bolus Durations

Clinical Trial Summary

To cover meal-related insulin requirements, insulin pumps allow insulin to be delivered at high rates over a short period of time (bolus delivery). The length of this period (bolus duration) usually depends on the chosen bolus size and on the used insulin pump model. This study will evaluate the impact of different bolus durations (i.e., durations commonly employed in commercially available insulin pumps: 2 and 40 seconds for delivering 1 Unit of insulin) on the pharmacokinetic and pharmacodynamic properties of an rapid-acting insulin analogue.

Objective: To evaluate in type 1 diabetic patients the pharmacodynamics and pharmacokinetics of rapid-acting insulin (insulin lispro) administered as subcutaneous boluses with different bolus durations.

Study design: Single-center, randomized, controlled, two-arm cross-over intervention study

Population: Twenty type 1 diabetic subjects

Intervention: The investigational treatment is the subcutaneous administration of insulin lispro either as one bolus of 15 IU over a period of 30s or as one bolus of 15 IU over a period of 10 min. 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 glucose infusion rate

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 NCT01792323
Study type Interventional
Source Medical University of Graz
Contact
Status Completed
Phase Phase 1
Start date August 2011
Completion date January 2014
View Details
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