Best Timing of Insulin Bolus Before Meals of Different Contents

February 21, 2013 updated by: Amnon Zung, Kaplan Medical Center

The Effect of Food Content and Optimal Timing of Pre-meal Insulin Bolus on the Postprandial Glycemic Control in Children With Type 1 Diabetes

Post-meal glucose excursions may contribute to the development of diabetes-related complications. These glucose excursions are affected by the food content of the meal and the timing of insulin injection (or insulin pump-bolus) before meal. The best timing for insulin bolus (by pump) is controversial.

The aim of the study is to examine three different timings of insulin bolus in three types of breakfast meals that contain carbohydrates, carbohydrates + proteins and carbohydrate+ fat. The 3h post-meal glucose excursions will be recorded by continuous glucose monitoring system. The results obtained in the diabetic patients will be compared to those obtained in a group of healthy individuals that will consume similar meals.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

24

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • Israel
      • Rehovot, Israel, 76100
        • Recruiting
        • Pediatric Endocrinology Unit, Kaplan Medical Center
        • Principal Investigator:
          • Amnon Zung, MD
        • Contact:
        • Sub-Investigator:
          • Nitza Vazana, RN
        • Sub-Investigator:
          • Lilach Hofi, R.Nutr

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

8 years to 30 years (Child, Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

Diabetes patients:

  • Type 1 diabetes
  • Age 8 to 20 years
  • Both genders

Control group:

  • Age 18 to 30 years
  • Both genders

Exclusion Criteria:

Diabetes patients:

  • Less than a year from the diagnosis of type 1 diabetes
  • Less than 6 months from the time of insulin pump introduction

Control group:

  • Pregnancy
  • Any diagnosed or suspected chronic diseases
  • Current or recent (within 1 month) use of drugs (not including oral contraceptives and inhaled steroids for asthma).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Timing of insulin administration
Drug: insulin
Three different timings of insulin delivered by a pump
Other Names:
  • Insulin Humalog (generic name Lispro)
  • By Elli Lilly, USA

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Post-prandial blood glucose excursions following three different meals and three different timings of insulin bolus.
Time Frame: outcome measures will be assessed for each particiapant after a week; the overall timeframe for all participants is 18 months

Each diabetes patient will be assigned for one of three breakfast meals, differed by their content: carbohydrates, carbohydrates + proteins or carbohydrates + fat. Post-meal blood glucose excursions will be recoded by continuous blood glucose monitoring at three different days. In each day insulin bolus will be administrated at a different timing before meal.

Each healthy participant will consume the three types of breakfast meals at three different days, and post-meal blood glucose excursions will be recoded by continuous blood glucose monitoring.
outcome measures will be assessed for each particiapant after a week; the overall timeframe for all participants is 18 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Kaplan Medical Center

Investigators

  • Principal Investigator: Amnon Zung, MD, Pediatric Endocrinology Unit, Kaplan Medical Center, affiliated with the Hebrew University of Jerusalem

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2011

Primary Completion (Anticipated)

October 1, 2013

Study Completion (Anticipated)

December 1, 2013

Study Registration Dates

First Submitted

June 16, 2011

First Submitted That Met QC Criteria

July 29, 2011

First Posted (Estimate)

August 1, 2011

Study Record Updates

Last Update Posted (Estimate)

February 22, 2013

Last Update Submitted That Met QC Criteria

February 21, 2013

Last Verified

February 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • PP1

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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