Closing the Loop in Adults With Type 1 Diabetes Under Free Living Conditions. A Double-blinded, Single Centre, Randomised, Two-period, Crossover Extension Phase to Evaluate Home Use of Closed-loop Applying Ultra-rapid Insulin Lispro Versus Standard Insulin Lispro (Phase 4).

Detailed Summary

The main objective of this study is to determine whether home use of day and night closed loop insulin delivery under free living conditions applying ultra-rapid insulin lispro (Lyumjev) is superior to home use of closed-loop applying standard insulin lispro (Humalog). This is a double-blind, single-centre, randomised, crossover design study, involving a run-in period followed by two study periods during which glucose levels will be controlled either by an automated closed-loop system using standard rapid acting Humalog or by an automated closed-loop system using ultra-rapid Lispro in random order. Subjects will receive appropriate training in the safe use of closed-loop insulin delivery system. Subjects will have regular contact with the study team during the home study phase including 24/7 telephone support. The primary outcome is time spent in target range between 3.9 and 10.0 mmol/L as recorded by CGM during home stay. Secondary outcomes include time spent with glucose levels above and below target, as recorded by CGM, and other CGM based metrics.

Study Details

Timeline

Interventions