Postprandial Glucose Control Using an Extended Bolus for High-fat High Protein Meals in a Closed-loop System in Patients With Type 1 Diabetes
University of California, San Francisco
Summary
This study aims to evaluate whether the use of an extended bolus will improve glucose control with high-fat high protein meals using a closed-loop system. The new knowledge gained from this study may provide a method to allow for the proper administration of insulin over an extended period to mitigate the risk of prolonged hyperglycemia or early hypoglycemia.
Eligibility
- Age range
- 13–19 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria * Age between 13 and 19 years old, A1C \> 6% at screening * Diagnosed with type 1 diabetes for at least one year * Total daily dose (TDD) of insulin ≥ 0.3 units/kg/day * Currently using the Control IQ closed-loop system * Willing to abide by meal recommendations and study procedures * Willing and able to sign the Informed Consent Form (ICF) and/or has a parent or guardian willing and able to sign the ICF * Use an Android or Apple smartphone * Willingness not to start any new non-insulin glucose-lowering agent during the course of the trial * Participant and parent(s)/guardi…
Interventions
- DrugExtended bolus of insulin then standard bolus of insulin
For a standardized HFHP breakfast, participants will receive an extended meal bolus of insulin on the first morning and a standard meal bolus of insulin on the second morning of the study.
- DrugStandard bolus of insulin then extended bolus of insulin
For a standardized HFHP breakfast, participants will receive a standard bolus of insulin on the first morning and an extended bolus of insulin on the second morning of the study.
Location
- University of California San FranciscoSan Francisco, California