Abstract
Objective: Most insulin infusion sets (ISs) are labeled for 2- or 3-days use. The Medtronic EWIS is designed to increase wear time up to 7 days. This study reports on EWIS survival and performance during the pivotal trial (ClinicalTrials.gov: NCT04113694).Method: This multi-center (15), single-arm, non-randomized, non-inferiority trial in 259 participants (18-80yrs) with T1D using the MiniMed™ 670G system (with Humalog™ or Novolog™ insulin) involved wearing a 2- or 3-day IS for 2 weeks (run-in) followed by 12 consecutive EWIS wears (study phase). The latter was worn for ≥174 hours or until set failure. Safety and performance (i.e., a priori target of <16% failure rate due to unexplained hyperglycemia) were evaluated. Exploratory analysis of glycemic control (e.g., A1C, sensor glucose and time spent at glucose ranges) and insulin use during 3-day IS and EWIS wear were also evaluated.Result: The EWIS survival rate was 74.8% versus the 67.7% rate of 2- or 3-day ISs (p<0.05). The EWIS rate was 77.8% when excluding inadvertent early removals. Glycemic control outcomes were improved during EWIS use (Table) and there were no episodes of EWIS-related severe hypoglycemia or DKA.Conclusion: The 7-day EWIS was safe and its performance was superior at ≥174 hours compared to the performance observed for 2- or 3-day infusion sets.View largeDownload slideView largeDownload slide DisclosureB. A. Buckingham: Advisory Panel; Self; Medtronic, Tolerion, Inc., Research Support; Self; Beta Bionics, Inc., Insulet Corporation, Medtronic, Tandem Diabetes Care. B. Horowitz: Research Support; Self; Abbott Laboratories, BD, Celgene, Crinetics Pharmaceuticals, Gan & Lee Pharmaceuticals, Medtronic, Speaker’s Bureau; Self; AstraZeneca, Lilly Diabetes, Merck & Co., Inc., Novo Nordisk Inc. K. B. Kaiserman: Advisory Panel; Self; Medtronic, Consultant; Self; Medtronic, Employee; Self; MannKind Corporation, Research Support; Self; Medtronic, Speaker’s Bureau; Self; Medtronic, Stock/Shareholder; Self; MannKind Corporation. S. Huang: None. V. Chen: Employee; Self; Medtronic. G. Zhang: Employee; Self; Medtronic. S. Chattaraj: Employee; Self; Medtronic. J. Shin: Employee; Self; Medtronic. R. Vigersky: Employee; Self; Medtronic. R. L. Brazg: Research Support; Self; Abbott Diabetes, Ascensia Diabetes Care, Lexicon Pharmaceuticals, Inc., Lilly Diabetes, Medtronic, Pfizer Inc., Roche Diagnostic USA, Senseonics. T. S. Bailey: Consultant; Self; Abbott Diabetes, LifeScan, Novo Nordisk, Sanofi, Research Support; Self; Abbott, Abbott Diabetes, Biolinq, Capillary Biomedical, Inc., Dexcom, Inc., Eli Lilly and Company, Kowa Research Institute, Inc., Lexicon Pharmaceuticals, Inc., Livongo, Medtronic, Medtrum Technologies, Novo Nordisk, REMD Biotherapeutics, Sanofi, Sanvita, Viacyte, Inc., vTv Therapeutics, Zealand Pharma A/S, Speaker’s Bureau; Self; BD, Medtronic, Sanofi. Y. C. Kudva: Research Support; Self; Dexcom, Inc. S. K. Garg: Advisory Panel; Self; Eli Lilly and Company, Medtronic, Novo Nordisk Inc., Zealand Pharma A/S, Research Support; Self; Dexcom, Inc., Eli Lilly and Company, Medtronic. G. Grunberger: Research Support; Self; Medtronic, Speaker’s Bureau; Self; Abbott Diabetes, Eli Lilly and Company, Novo Nordisk. J. Thrasher: Advisory Panel; Self; Medtronic, Board Member; Self; Medtronic, Consultant; Self; Medtronic, Research Support; Self; Eli Lilly and Company, Lexicon Pharmaceuticals, Inc., Medtronic, Mylan N. V., Novo Nordisk, Sanofi, Speaker’s Bureau; Self; AstraZeneca, Janssen Pharmaceuticals, Inc., Medtronic, Sanofi. A. Cavale: Research Support; Self; Eli Lilly and Company, Medtronic. A. Bhargava: Research Support; Self; Abbott, AbbVie Inc., Amgen Inc., Boehringer Ingelheim Pharmaceuticals, Inc., Boston Therapeutics, Inc., Covance Inc., Dexcom, Inc., Eli Lilly and Company, Gan & Lee Pharmaceuticals, Insulet Corporation, Janssen Research & Development, LLC, Kowa Pharmaceuticals America, Inc., Madrigal Pharmaceuticals, Inc., Medtronic, Merck & Co., Inc., Mylan N. V., Novo Nordisk, Poxel SA, Quintiles, Sanofi, Senseonics, Tolerion, Inc., Viking Therapeutics.
Published Version
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