Comparing glycemic outcomes after missed meal bolus in children with type 1 diabetes using different hybrid closed loop systems

How do the Currently Available HCL Systems Manage Missed Meal Bolus? The Comparison of Glycemic Outcomes After Missed Meal Bolus Between MiniMed 780G, Tandem Control-IQ and Ypsomed CamAPS

Not applicable Interventional University Hospital, Motol · NCT06230276

This study is testing how different hybrid closed loop systems affect blood sugar levels in children with type 1 diabetes when they miss their meal insulin doses.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment45 (estimated)
Ages9 Years to 19 Years
SexAll
SponsorUniversity Hospital, Motol Academic / other
Locations1 site (Prague)
Trial IDNCT06230276 on ClinicalTrials.gov

What this trial studies

This interventional study aims to evaluate glycemic outcomes in children and adolescents with type 1 diabetes who miss meal boluses while using different hybrid closed loop (HCL) systems, specifically the Medtronic MiniMed 780G, Tandem Control-IQ, and Ypsomed CamAPS. Participants will receive a controlled amount of enteral nutrition for breakfast on eight different days, with premeal boluses administered for only half of the meals. The study will assess how glycemic responses vary based on the type of HCL system and the insulin analog used. Key metrics include changes in glucose concentration and continuous glucose monitoring parameters.

Who should consider this trial

Good fit: Ideal candidates are children and adolescents aged 9 to 18 years with type 1 diabetes who have been using a hybrid closed loop system for over three months.

Not a fit: Patients who are not using continuous glucose monitoring or those with significant comorbidities affecting glycemia may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve management strategies for missed meal boluses in children with type 1 diabetes, leading to better glycemic control.

How similar studies have performed: Other studies have explored glycemic outcomes in type 1 diabetes management, but this specific comparison of HCL systems after missed meal boluses is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* children with type 1 diabetes (CwD) 9.00-18.99 years old
* use of continuous glucose monitoring (CGM) \>70% of the time 14 days before a regular check-up in the outpatient clinic
* HCL use (MiniMed 780G, Tandem Control-IQ or Ypsomed CamAPS) \>3 months
* duration of T1D \>2 years
* baseline HbA1c level \<58 mmol/mol (7.5%)
* weight \> 30 kilograms
* without any medication influencing glycemia (f.e. gliflozins, systemic corticosteroids...)
* signed informed consent form with the study

Where this trial is running

Prague

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Diabetes Mellitus, Type 1
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.