Performance of an Automated Insulin Delivery System: Results of Early Phase Feasibility Studies.

Automated insulin delivery (AID) systems have demonstrated improvements in time-in-range (TIR, blood glucose 70-180 mg/dL) without increasing hypoglycemia. Testing a closed-loop system in an inpatient environment with supervised challenges allows for initial evaluation of performance and safety of the system. Adults with type 1 diabetes (T1D) were enrolled into two similar studies ( = 10 per study), with 3-day inpatient analysis periods.