A Randomized, Open-Label Comparison of Once-Weekly #Insulin Icodec Titration Strategies Versus Once-Daily Insulin Glargine U100

Insulin icodec is a novel once-weekly basal insulin analog. This trial investigated the efficacy and safety of icodec using different once-weekly titration algorithms.

RESEARCH DESIGN AND METHODS This was a phase 2, randomized, open-label, 16-week, treat-to-target study. Insulin-naïve adults (n = 205) with type 2 diabetes and HbA1c 7–10% while treated with oral glucose-lowering medications initiated once-weekly icodec titrations A (prebreakfast self-measured blood glucose target 80–130 mg/dL; adjustment ±21 units/week; n = 51), B (80–130 mg/dL; ±28 units/week; n = 51), or C (70–108 mg/dL; ±28 units/week; n = 52), or once-daily insulin glargine U100 (IGlar U100) (80–130 mg/dL; ±4 units/day; n = 51), all titrated weekly. Percentage of time in range (TIR) (70–180 mg/dL) during weeks 15 and 16 was measured using continuous glucose monitoring.

RESULTS TIR improved from baseline (means: A, 57.0%; B, 55.2%; C, 51.0%; IGlar U100, 55.3%) to weeks 15 and 16 (estimated mean: A, 76.6%; B, 83.0%; C, 80.9%; IGlar U100, 75.9%). TIR was greater for titration B than for IGlar U100 (estimated treatment difference 7.08%-points; 95% CI 2.12 to 12.04%; P = 0.005). No unexpected safety signals were observed. Level 2 hypoglycemia (<54 mg/dL) was low in all groups (0.05, 0.15, 0.38, 0.00 events per patient-year of exposure for icodec titrations A, B, and C and IGlar U100, respectively), with no episodes of severe hypoglycemia.

CONCLUSIONS Once-weekly icodec was efficacious and well tolerated across all three titration algorithms investigated. The results for icodec titration A (80–130 mg/dL; ±21 units/week) displayed the best balance between glycemic control and risk of hypoglycemia.

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