Diabetes technology

Impact of Ultra-Rapid Insulin on Boost and Ease-Off in the Cambridge Hybrid Closed-Loop System for Individuals With Type 1 Diabetes

J Diabetes Sci TechnolPublished Secondary analysis of two randomised crossover hybrid closed-loop studies

Authors' conclusion

The use of Fiasp and Lyumjev during Boost or Ease-off resulted in comparable safety and efficacy to using insulin aspart and lispro.

Study context

Population
Individuals with T1D using the Cambridge hybrid closed-loop system; Fiasp vs aspart study and Lyumjev vs lispro study2 crossover studies · Fiasp vs aspart study 25 · Lyumjev vs lispro study 26
Comparison
Ultra-rapid insulins (Fiasp, Lyumjev) vs standard insulins (insulin aspart, insulin lispro) during Boost and Ease-off of the Cambridge hybrid closed-loop system
Methodological detailsdouble-blind, randomized
  • Double-blind
  • Randomized

Primary result

As reported in the abstract

Duration of Boost use

P = 0.01

Further findings

OutcomeFiaspInsulin aspartP value
Mean glucose on Boost initializationFiasp vs Insulin aspartmean 238 ± 62 mg/dLmean 218 ± 45 mg/dLP = 0.08
Glucose change 120 minutes after Boost initializationFiasp vs Insulin aspart · greater reduction with Fiaspmean −59 ± 34 mg/dLmean −43 ± 31 mg/dLP = 0.02

Sensor glucose endpoints during Boost or Ease-off

No statistically significant differences between Fiasp and aspart
No statistically significant differences between Lyumjev and insulin lispro

Safety

No safety issues using Boost and Ease-off with ultra-rapid insulins

Original publication

Impact of Ultra-Rapid Insulin on Boost and Ease-Off in the Cambridge Hybrid Closed-Loop System for Individuals With Type 1 Diabetes. J Diabetes Sci Technol. Published 18 October 2024. doi:10.1177/19322968241289963

Composed by AI from the published abstract and checked against it. How Briefs are made →

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