Diabetes technology

A Simple Meal Bolus Strategy is Effective in Adolescents and Young Adults with Type 1 Diabetes on Multiple Automated Insulin Delivery Systems

Diabetes Technol TherPublished Randomised crossover trial

Primary result · TIR 70-180 mg/dLResult — go to the resultDifference −1.8% 95% CI lower limit −3.9

Authors' conclusion

Precise CC may be an unnecessary burden for T1D adolescents using AID, and requiring it could impact success with or access to these systems.

Study context

Population
Adolescents and young adults aged 14–26 with T1D using automated insulin delivery (AID); mean 17.4 years, 51.6% female, T1D duration 8.3 years, baseline time in range (TIR) 64.1%crossover
Participants
31 adolescents
Comparison
Simple meal boluses vs carbohydrate counting
Primary endpoint
TIR 70-180 mg/dL, noninferiority margin 5%
Follow-up
4 weeks per period
Methodological detailsnoninferiority
  • Noninferiority

Primary result

TIR 70-180 mg/dL

Difference

−1.8%

95% CI lower limit −3.9

P = 0.008 indicating noninferiority

By group

Simplevs CC
difference −1.8% (95% CI lower limit −3.9); P = 0.008 indicating noninferiority

As reported in the abstract

Further findings

% time >250 mg/dL · 4 weeks per period

No difference in % time >250 mg/dL between periods (difference, P = 0.3)
1.2%
  • Crossover

Preferred meal bolus method after study

Preferred carbohydrate counting (CC)
31.3%
Preferred simple boluses
40.6%
Preferred prestudy method
28.1%

Safety

% time <70 mg/dL · 4 weeks per period

No difference in % time <70 mg/dL between periods (difference, P = 0.9)
−0.02%
  • Crossover

Original publication

A Simple Meal Bolus Strategy is Effective in Adolescents and Young Adults with Type 1 Diabetes on Multiple Automated Insulin Delivery Systems. Diabetes Technol Ther. Published 15 July 2026. doi:10.1177/15209156261467128

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

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