Abstract
Youth with T1D and high HbA1c are at higher risk of DKA. This study examined whether daily school-supervised basal insulin injections reduced the risk of morning ketosis in youth with high HbA1c. We hypothesized that glargine and degludec would reduce the risk of ketosis, and explored whether the prolonged action of degludec protects from ketosis after 2-4 days unsupervised injections. After a 2-4 week run-in, youth (10-18y) on injections with A1c ≥ 8.5% were randomized to supervised administration of either degludec or glargine for 4 months. School nurses observed daily fasting blood β-hydroxybutyrate (βHB) and glucose checks and basal insulin doses. During COVID closures, our research team is supervising procedures remotely. Twenty-four youth (mean age 14.4 ± 2.4 y, 67% F, HbA1c 11.6% ± 1.9%) were analyzed. Supervised injections of both basal insulins for 1-4 days progressively lowered the % participants with elevated βHB (Figure). The % of participants with elevated βHB after 2 days of unsupervised basal insulin tended to be greater in the glargine group. HbA1c did not change. None had DKA. In high risk youth with T1D, daily supervised insulin administration decreased the probability of elevated ketone levels the following school day, regardless of insulin type. A larger sample is needed to determine if degludec’s longer action profile offers additional protection from ketosis during days off from school. Disclosure L. M. Nally: None. M. A. Van name: None. O. K. Sosnoski: None. J. Sherr: Advisory Panel; Self; Cecelia Health, Insulet Corporation, Medtronic, Consultant; Self; Insulet Corporation, Lexicon Pharmaceuticals, Inc., Lilly Diabetes, Medtronic, Research Support; Self; Dexcom, Inc., Insulet Corporation, Medtronic, Speaker’s Bureau; Self; Lilly Diabetes. E. M. Tichy: None. K. Weyman: None. A. Steffen: None. S. Mccollum: None. V. Shabanova: None. W. V. Tamborlane: Consultant; Self; Medtronic, Sanofi, Other Relationship; Self; Tolerion, Inc. Funding National Institutes of Health (K12DK094714); Novo Nordisk
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