Effects of Optimizing Nocturnal Glycemic Control on Sleep Parameters in Type 1 Diabetes

Study Overview
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Brief Summary
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Sleep is crucial for physical and mental health. Environmental, social, or professional pressures can cause sleep duration to fall below the recommended 7-9 hours of sleep per night. Young adults with type 1 diabetes, have additional interference with fear, control and management of hypo/hyperglycemia management, alarms from their devices, which delay bedtime, disrupt sleep and generate multiple awakenings and difficulty returning to sleep. Sleep disturbance is correlated with blood glucose variability as recently demonstrated by a coupled analysis of sleep and glucose level collected by Continuous Glucose Monitoring (CGM). In this study, higher glucose variability predicted impaired sleep at the individual level. Automated insulin infusion has shown impressive results in clinical and real-life studies, with more than 90% of patients achieving good glycemic control. Il seems to improve sleep quality in subjects after 4 weeks in hybrid closed-loop, self-administered studies compared to a control group. The main objective of our study is to measure the positive influence of a better glycemic control on the different sleep parameters in subjects with type 1 diabetes at the time of the passage in hybrid closed-loop and in comparison to an identical period in open-loop.

Official Title
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Effects of Optimizing Nocturnal Glycemic Control on Sleep Parameters in Type 1 Diabetes

Conditions
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Type 1 Diabetes

Intervention / Treatment
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* Other: Sleep parameters data collection


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients usually followed by the Diab-eCare service (HCL), male or female, between 18 and 50 years old, Confirmed diagnosis of type 1 diabetes for more than 1 year regardless of age of diagnosis, Eligible according to current recommendations and the center's practices for a hybrid closed-loop solution including all Dexcom G6, On pump, whatever the device used, for at least 6 months and with a Dexcom G6 CGM sensor for at least one month with more than 95% of data obtained, BMI<30 kg/m2, HbA1C <10%, Do not oppose to the said research. Exclusion Criteria: Patients with type 2 diabetes, Patients with a cause other than diabetes that could disrupt sleep: Known or suspected sleep apnea syndrome with high risk according to the Berlin questionnaire, And/or Presence of risk factors such as severe retinopathy, nephropathy, hypertension, autonomic neuropathy, chronic psychiatric disorders, endocrine or metabolic pathologies that have not been stabilized, therapeutics that may alter sleep (i.e. sleeping pills, corticosteroids, antidepressants, anxiolytics, antihistamines), regular use of cannabis, abusive use of alcohol (regularly > 3 drinks per day for a man and > 2 drinks for a woman) And/or Night or shift work, Inability to collect data and/or understand the objectives of the study according to the investigator, Persons under legal protection, Persons not affiliated with a social security system

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 50 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Adult patients with type 1 diabetes<br>Adult patients with type 1 diabetes treated with insulin pumps according to current recommendations with an indication to switch to a hybrid closed-loop pump | Other: Sleep parameters data collection<br>* Sleep parameters collected before and after hybrid close-loop pump activation. Data collected with adequate devices (i.e. actigraph and Dreem Band).<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Sleep efficiency | To evaluate if the optimization of glycemic control after 1 month of use of a hybrid closed loop improves sleep efficiency, i.e. the change of ratio of measured sleep time to time in bed * 100, evaluated by the actiwatch 2 (AW2) actigraph from inclusion (before the switch to the hybrid closed loop) to 1 month after the switch. | Change between inclusion and 1 month after the switch to the hybrid closed loop | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Type 1 Diabetes, Sleep, nocturnal glycemic control