Abstract

Background: The objective of this study was to evaluate glycemic outcomes using a structured initiation protocol for Hybrid Closed Loop (HCL) MiniMed 670G and Advanced Hybrid Closed Loop (AHCL) Minimed 780G system in children and adolescents with Type 1 Diabetes (T1D) previously treated with Multiple Daily Injections. Methods: The data from two separate (HCL and AHCL system) investigations were analyzed in individuals (aged 7-18 years) with T1D on MDI therapy, both followed a structured initiation protocol. Time in Ranges, HbA1c and system characteristics were analyzed between two systems at 3 and 6 months of Automated Insulin Delivery (AID) . Results: 30 children (age 10.24 ± 2.6 years, HbA1c 8.2±1.4% (66±15.3 mmol/mol)) with HCL system and 34 children (12.5 ± 3.7 years, 8.6±1.7% (70±18.6 mmol/mol)) with AHCL system completed the planned 12 weeks of AID. TIR (70-180mg/dl) of 73.4±8.9% with HCL and 78.2±4.3% with AHCL (p=0.01) was achieved at 6 months of AID. No episodes of severe hypoglycemia or DKA were reported using both systems. Conclusion: Individuals using AHCL MiniMed 780G system had more stringent system settings, spent more time in AID with less exits, which possibly lead to further improvements of glycemic control compared to HCL MiniMed 670G system using the same structured protocol. Disclosure G.Petrovski: None. J.Campbell: Advisory Panel; Medtronic. F.Alkhalaf: None. K.Hussain: None.

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