Appearance of Do-It-Yourself closed-loop systems to manage type 1 diabetes.

Access to proprietary closed-loop insulin pump systems is limited. The use of Do-It-Yourself closed-loop systems in Australia is growing. A 2017 Facebook group survey indicated that 20 individuals were actively looping with another 38 yet to commence despite the lack of regulatory body approval. Improved glycaemic control with less hypoglycaemia and better sleep were the main benefits. Local health professionals need to be aware of this technology.