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Multicenter Evaluation of Ultra-Rapid Lispro (URLi) Insulin with Control-IQ Technology in Adults, Adolescents and Children with Type 1 Diabetes.
Diabetes Technology & Therapeutics 2024 May 3
OBJECTIVE: To evaluate the safety and explore the efficacy of use of ultra-rapid lispro (URLi, Lyumjev) insulin in the Tandem t:slim X2 insulin pump with Control-IQ 1.5 technology in children, teens and adults living with type 1 diabetes (T1D).
METHODS: At 14 U.S. diabetes centers, youth and adults with T1D completed a 16-day lead-in period using lispro in a t:slim X2 insulin pump with Control-IQ 1.5 technology followed by a 13-week period in which URLi insulin was used in the pump.
RESULTS: The trial included 179 individuals with type 1 diabetes (T1D) age 6 to 75 years. With URLi, 1.7% (3 participants) had a severe hypoglycemia event over 13 weeks attributed to override boluses or a missed meal. No DKA events occurred. Two participants stopped URLi use due to infusion site discomfort and one stopped after developing a rash. Mean time 70-180 mg/dL (TIR) increased from 65%±15% with lispro to 67%±13% with URLi (P=0.004). Mean insulin treatment satisfaction questionnaire (ITSQ) score improved from 75±13 at screening to 80±11 after 13 weeks of URLi use (mean difference = 6; 95% CI 4 to 8; P<0.001), with the greatest improvement reported for confidence avoiding symptoms of high blood sugar. Mean treatment related impact measure-diabetes (TRIM-D) score improved from 74±12 to 80±12 (P<0.001), and mean TRIM-Diabetes Device (TRIM-DD) score improved from 82±11 to 86±12 (P<0.001).
CONCLUSIONS: URLi use in the Tandem t:slim X2 insulin pump with Control-IQ 1.5 technology was safe for adult and pediatric participants with type 1 diabetes, with quality of life benefits of URLi use perceived by the study participants.
METHODS: At 14 U.S. diabetes centers, youth and adults with T1D completed a 16-day lead-in period using lispro in a t:slim X2 insulin pump with Control-IQ 1.5 technology followed by a 13-week period in which URLi insulin was used in the pump.
RESULTS: The trial included 179 individuals with type 1 diabetes (T1D) age 6 to 75 years. With URLi, 1.7% (3 participants) had a severe hypoglycemia event over 13 weeks attributed to override boluses or a missed meal. No DKA events occurred. Two participants stopped URLi use due to infusion site discomfort and one stopped after developing a rash. Mean time 70-180 mg/dL (TIR) increased from 65%±15% with lispro to 67%±13% with URLi (P=0.004). Mean insulin treatment satisfaction questionnaire (ITSQ) score improved from 75±13 at screening to 80±11 after 13 weeks of URLi use (mean difference = 6; 95% CI 4 to 8; P<0.001), with the greatest improvement reported for confidence avoiding symptoms of high blood sugar. Mean treatment related impact measure-diabetes (TRIM-D) score improved from 74±12 to 80±12 (P<0.001), and mean TRIM-Diabetes Device (TRIM-DD) score improved from 82±11 to 86±12 (P<0.001).
CONCLUSIONS: URLi use in the Tandem t:slim X2 insulin pump with Control-IQ 1.5 technology was safe for adult and pediatric participants with type 1 diabetes, with quality of life benefits of URLi use perceived by the study participants.
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