The Effect of Bolus Speed of Rapid-Acting Insulin Analog Absorption and Action in Individuals With Type 1 Diabetes

NCT ID: NCT03542682

Last Updated: 2024-02-13

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

11 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-05-30

Study Completion Date

2022-09-23

Brief Summary

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Rapid Action Insulin (RAI) absorption and action measured by time to reach maximum insulin concentration and glucose infusion rate.

Detailed Description

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The investigators hypothesize that RAI absorption and action measured by time to reach maximum insulin concentration and glucose infusion rate during the clamp study will be significantly faster when insulin bolus is delivered using the "Quick Bolus" feature as compared to the "Standard Bolus".

Outcomes were updated at time of results entry.

Conditions

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Type1diabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

This study will be a cross-over, randomized order, single blinded clinical study in subjects with Type 1 Diabetes.
Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

SINGLE

Participants
single blinded

Study Groups

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Individuals given Standard Bolus first, then quick bolus

Individuals with Type 1 Diabetes (T1D) will receive both Standard and Quick Bolus in a randomized cross-over design.

Group Type ACTIVE_COMPARATOR

Quick Bolus

Intervention Type DEVICE

Individuals with Type 1 Diabetes (T1D) given 0.2 units/kg of rapid acting insulin (RAI) via "quick bolus" of 15 units per minute during a euglycemic clamp.

Standard Bolus

Intervention Type DEVICE

Individuals with Type 1 Diabetes (T1D) given 0.2 units/kg of rapid acting insulin (RAI) via "standard bolus" of 1.5 units per minute during a euglycemic clamp.

Individuals given Quick bolus first, then standard bolus

Individuals with Type 1 Diabetes (T1D) will receive both Standard and Quick Bolus in a randomized cross-over design.

Group Type ACTIVE_COMPARATOR

Quick Bolus

Intervention Type DEVICE

Individuals with Type 1 Diabetes (T1D) given 0.2 units/kg of rapid acting insulin (RAI) via "quick bolus" of 15 units per minute during a euglycemic clamp.

Standard Bolus

Intervention Type DEVICE

Individuals with Type 1 Diabetes (T1D) given 0.2 units/kg of rapid acting insulin (RAI) via "standard bolus" of 1.5 units per minute during a euglycemic clamp.

Interventions

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Quick Bolus

Individuals with Type 1 Diabetes (T1D) given 0.2 units/kg of rapid acting insulin (RAI) via "quick bolus" of 15 units per minute during a euglycemic clamp.

Intervention Type DEVICE

Standard Bolus

Individuals with Type 1 Diabetes (T1D) given 0.2 units/kg of rapid acting insulin (RAI) via "standard bolus" of 1.5 units per minute during a euglycemic clamp.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Age 18 - 30 (inclusive)
2. Clinical diagnosis of T1D of at least one year's duration
3. On Continuous Subcutaneous Insulin Infusion (CSII) therapy for at least three months
4. HbA1c \<10%
5. Minimum weight requirement of at least 37.9 kg
6. Ability to comprehend written and spoken English
7. Total daily requirement of insulin between 0.6 and1.2 U/kg/day
8. Not have any other medical condition or disease known to affect insulin action and glucose control aside from T1D or treated hypothyroidism

Exclusion Criteria

1. Medication besides insulin known to alter blood glucose or insulin action
2. Female subjects of reproductive potential that are pregnant or breast feeding, or not consistently using a barrier method or abstinence as contraception.
3. Inability to comprehend written and spoken English
4. Any other condition, which in the judgment of the investigators, would interfere with the subject's ability to provide informed consent or the investigator's ability to perform the study
5. Hematocrit less than 35% or a serum potassium less than 3.4 mmol/L
Minimum Eligible Age

18 Years

Maximum Eligible Age

30 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Yale University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Eda Cengiz, MD

Role: PRINCIPAL_INVESTIGATOR

Yale University

Locations

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Yale University

New Haven, Connecticut, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Other Identifiers

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2000022726

Identifier Type: -

Identifier Source: org_study_id

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