Diabetes technology

Insulin-to-carbohydrate ratio intensification during Ramadan in young people using advanced hybrid closed-loop therapy: A prospective quasi-experimental pilot study

Diabetes Res Clin PractPublished Prospective quasi-experimental pilot study

Main finding · Non-fasting TIR (70-180 mg/dL)Result — go to the resultAdjusted difference 10.4 % 95% CI 5.2–15.5

Authors' conclusion

Prandial insulin intensification may be a safe strategy worthy of further investigation of its potential to improve glycemic control during Ramadan in young people using ACHL therapy.

Study context

Population
Young people with T1D using MiniMed 780G advanced hybrid closed-loop (AHCL), fasting during Ramadan 2025; median age 14.9 years47 analysed
Participants
61 people
Exposure
20% insulin-to-carbohydrate ratio (ICR) intensification from Iftar to Suhoor vs standard care
  • Interventionn = 18
  • Controln = 29reference
Outcome
Non-fasting time in range (TIR) (70-180 mg/dL)
Follow-up
Over Ramadan
Methodological detailspre-specified adjusted linear regression, Post-Ramadan attrition: 47 of 61 enrolled analysed
  • Pre-specified adjusted linear regression
  • Post-Ramadan attrition: 47 of 61 enrolled analysed

Main finding

As reported in the abstract

Adjusted difference

10.4 %

95% CI 5.2–15.5

P = 0.0002

ICR intensificationvs Standard care
adjusted difference 10.4 % (95% CI 5.2–15.5); P = 0.0002

Observational data: associations, not effects.

Safety

Primary safety outcome: non-fasting time below range (TBR) (<70 mg/dL)

Non-fasting TBR remained low and similar between groups, with no evidence of increased hypoglycemia

Original publication

Insulin-to-carbohydrate ratio intensification during Ramadan in young people using advanced hybrid closed-loop therapy: A prospective quasi-experimental pilot study. Diabetes Res Clin Pract. Published 24 May 2026. doi:10.1016/j.diabres.2026.113337

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