- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00475345
Impact of Optimized Titration and Delivery of Bedtime Insulin on Prevention of Nocturnal Hypoglycemia
Impact of Optimized Titration and Delivery of Bedtime Insulin on Prevention of Nocturnal Hypoglycemia in Adults With Type 1 Diabetes Undergoing Intensive Management
The purpose of this study is to determine whether or not bedtime snacks are necessary to prevent overnight low blood glucose reactions (nocturnal hypoglycemia) in adults with type 1 diabetes who are using intensive insulin therapies, either multiple injections of insulin or insulin pump.
We hypothesize that a bedtime snack is not necessary if the bedtime insulin is very well adjusted and delivered, especially by use of insulin pump which is considered the "gold standard" for overnight blood glucose control.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Nocturnal hypoglycemia is a significant side effect of insulin replacement therapy and can lead to many problems including coma and death in the most extreme cases and deterioration of glycemic control. Strategies to prevent nocturnal hypoglycemia include development of newer insulins and delivery systems and the use of specific bedtime snack compositions. Detection of nocturnal hypoglycemia, as it occurs in everyday life, has been a problem since most episodes go unnoticed and therefore untreated leading to a very dangerous situation. With the recent availability of technology which allows for continuous glucose monitoring , it has been made possible to detect nocturnal hypoglycemia as it occurs in daily life. As well, this technology allows for the possibility of better titration of therapy.
Therefore, the goal of our study was to use continuous glucose monitoring technology as a tool to optimize titration of insulin therapy and as a means to detect nocturnal hypoglycemia as it occurs in daily life. Specifically, we sought to compare the use of insulin pump therapy with no bedtime snacks and using a new type of insulin called an analogue(lispro) versus multiple daily injections of insulin, using the same type of insulin analogue, and with and without bedtime snacks. Therefore, we compared 3 groups: 1) insulin pump with no bedtime snacks; 2) multiple injections with bedtime snacks and 3) multiple injections with no bedtime snacks. The groups were primarily compared for the occurrence and frequency of nocturnal hypoglycemia. Other comparisons included: long term glycemic control (A1c), weight and body composition and quality of life.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
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Quebec
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Montreal, Quebec, Canada, H3A-1A1
- Royal Victoria Hospital
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Adults with type 1 diabetes for more than 3 years duration and on intensive insulin therapy using multiple daily injections of insulin (MDI) for at least 1 year prior to study.
Exclusion Criteria:
- Pregnant women or intending to become pregnant in next year,
- Significant hepatic or renal disease,
- Active cancer,
- Abuse of alcohol or drugs.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Incidence of nocturnal hypoglycemia (< 4mmol/L) occurring between 11pm and 7am, as determined with the Continuous Glucose Monitoring System (CGMS) and hemoglobin A1c
Time Frame: end of 3 months for each group
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end of 3 months for each group
|
Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Nadir nocturnal BG, timing and duration of nocturnal hypoglycemia, fasting BG, lipid profile, psychosocial factors, total insulin dose, insulin sensitivity and body composition (weight, BMI, % fat, waist circumference).
Time Frame: end of 3 months for each group
|
end of 3 months for each group
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Jean_Francois Yale, MD, McGill Nutrition and Food Science Centre
Study record dates
Study Major Dates
Study Start
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- A05-M27-00
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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