Comparing three-day and seven-day insulin infusion sets for children with Type 1 Diabetes

A Randomized Controlled Trial Testing the Influence of Three- and Seven-days Insulin Infusions and Two Types of Insulin on Hyperechogenicity in Subcutis and Glycemic Variables in Children and Adolescents With Type 1 Diabetes

Not applicable Interventional Steno Diabetes Center Copenhagen · NCT06532461

This study tests whether using insulin infusion sets for three days or seven days helps kids with Type 1 Diabetes avoid skin problems and works better with different types of insulin.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment80 (estimated)
Ages7 Years to 18 Years
SexAll
SponsorSteno Diabetes Center Copenhagen Academic / other
Locations1 site (Herlev, Capital)
Trial IDNCT06532461 on ClinicalTrials.gov

What this trial studies

This study investigates the effects of using three-day versus seven-day insulin infusion sets in children and adolescents with Type 1 Diabetes. It aims to determine which duration of infusion set use is more effective in preventing skin complications such as hyperechogenicity and eczema. Participants will be using the Medtronic 780G hybrid closed-loop system, and the study will also compare the effects of two types of insulin: Novorapid and Humalog. The research will involve monitoring skin conditions and insulin absorption over the specified periods.

Who should consider this trial

Good fit: Ideal candidates are children and adolescents aged 7 to 18 years with Type 1 Diabetes who have been using a hybrid closed-loop insulin delivery system for at least six months.

Not a fit: Patients who cannot read or understand Danish or have cognitive impairments that affect their ability to participate will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved skin health and insulin absorption for children and adolescents using insulin pumps.

How similar studies have performed: Previous studies have shown varying results regarding insulin absorption and skin complications with different infusion set durations, making this approach both relevant and necessary.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Diagnosed with T1D
* Diabetes duration of more than 6 months prior to inclusion.
* Currently using the CE-marked hybrid closed-loop system - Medtronic 780G pump and the corresponding sensor with automated insulin delivery.
* Planning to using the CE-marked hybrid closed-loop system - Medtronic 780G pump and the corresponding sensor with automated insulin delivery.
* Being between 7 and 18 years of age prior to inclusion
* Insulin needs per day above 8 units

Exclusion Criteria:

* Those who are unable to read and understand Danish
* Those with impaired cognitive development that may interfere with the ability to answer questionnaires in Danish and/or be reached by phone or videocall

Where this trial is running

Herlev, Capital

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 Type 1 DiabetesUltrasoundElectric Bioimpedance Spectroscopytissue viability imagingHyperechogenicityLipohypertrophy
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.