DOES CLOSED-LOOP CONTROL (CLC) IMPROVE SLEEP IN VULNERABLE POPULATIONS WITH TYPE 1 DIABETES (T1D)?
- Alessandro Bisio, United States of America
- Alessandro Bisio, United States of America
- Sue A. Brown, United States of America
- Ryan Mcfadden, United States of America
- Heather Bonner, United States of America
- Pearl L. Yu, United States of America
- Daniel Chernavvsky, United States of America
- Omar Khurshid, United States of America
- Mary C. Oliveri, United States of America
- Nicole Kurtz, United States of America
- Michael Pajewski, United States of America
- Christian Wakeman, United States of America
- Linda Gonder-frederick, United States of America
Abstract
Background and Aims
Studies have increasingly identified sleep disturbances in people with T1D. Older adults and young children may be a particularly vulnerable population to sleep disturbances. Anecdotally, it is reported that use of CLC improves sleep quality and quantity, but objective data on this effect are not available. This study assesses sleep outcomes of CLC compared to sensor-augmented pump therapy (SAP).
Methods
Participants with T1D on insulin pump therapy were enrolled in two age groups: older adults (ages 65+) and young children (ages 6-10). Participants completed an initial 4-week study with SAP using their own pump and a study CGM (Dexcom G6) followed by a 4-week phase of CLC (Control-IQ, Tandem Diabetes Care). Sleep was assessed using Actigraphy watches worn the last 10 days of each study phase. The Pittsburgh Sleep Quality Index (PSQI) questionnaire was administered at baseline and following each study phase.
Results
A total of 18 older adults (mean age 69) and 15 children (mean age 9) and their parents were enrolled in this ongoing study. Preliminary data analysis was performed on a subset of 4 older male adults. Sleep duration increased an average of 19 minutes during CLC in 2 subjects and remained virtually unaltered in the others. Sleep efficiency did not change. PSQI score improved in the two participants with worse scores on SAP. Results for each participant are shown below.
Conclusions
Though preliminary, these results suggest that the use of CLC may have a positive impact on the quality of sleep for some older adults with T1D.