Closing the loop: 780G system
HJ Aanstoot, P Winterdijk, S Bovenberg, P Dekker, M De Vries, T Sas, D Mul, I Bliek, S Huijbers, M Alkemade, L Olierook, H Veeze
Effect of remote education in switching to a new advanced hybrid closed-loop system: improved time in range, sustained auto mode and better average glucose levels. 14th International Conference on Advanced Technologies and Treatments for Diabetes, 2-5 June 2021, online. Abstract: #319.
Outcome of type 1 diabetes can only be improved by further automation of insulin delivery. As part of a real-life technical evaluation of a new advanced hybrid closed-loop system, and in the middle of COVID-19 pandemic, we analyzed outcomes after 5 weeks of use.
Thirty-five people with type 1 diabetes , who were already using a Medtronic Minimed (MM)670G hybrid closed-loop in Auto Mode for >3 months, were invited for real-life evaluation of the MM780G advanced hybrid closed-loop system. Due to COVID-19, education and change between systems were largely done by remote video sessions.
We used CareLink-generated reports to compare the last week of 670G system use with the 5th week of 780G system use.
Key findings:
- Participants successfully completed education and switched to SmartGuard (auto mode)
- Time In Range (TIR) during last week of 670G improved
- Time Below Range (TBR) was similar
- Time Above Range (TAR) decreased
- Average glucose improved
These results indicate the feasibility of switching from a MM670G to an MM780G system in remote education sessions under COVID-19 circumstances. A strong improvement of important glucometric data was seen in a relatively short timeframe, even in a selected group of people with type 1 diabetes with good baseline diabetes regulation.