[Closed-loop systems - Update 2020].

Melmer, Andreas; Tripyla, Afroditi; Herzig, David; Laimer, Markus; Stettler, Christoph; Bally, Lia (2020). [Closed-loop systems - Update 2020]. Therapeutische Umschau, 77(7), pp. 312-318. Hogrefe 10.1024/0040-5930/a001197

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Closed-loop systems - Update 2020 Abstract. The artificial pancreas (also referred to as a Closed-loop system) represents the latest development in diabetes therapy. Closed-loop systems autonomously direct subcutaneous insulin infusion via a control algorithm based on real-time continuous glucose monitoring. Closed-loop systems have been tested in clinical studies since 2011, and were shown to improve glucose control by reducing hyper- and hypoglycaemia as well as glucose variability when compared with conventional insulin pump therapy. In 2016, the US regulatory authority approved the first hybrid-closed-loop system for the treatment of type 1 diabetes. Hybrid-closed loop systems are not yet fully automated and still require the user to be actively involved for insulin dosing at mealtimes. In spite of the remarkable progress, the delayed action profile of subcutaneously administered insulin and the need to wear multiple devices on the body remain challenging. The present review article summarizes the current state of the art of closed-loop systems in diabetes care and will address technical aspects, evidence from clinical studies as well as future developments in the field.

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