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Published on: June 11, 2012
Closed-loop insulin delivery systems in children and adolescents with type 1 diabetes
Klemen Dovc1,2, Tadej Battelino1,2
1Department of Paediatric Endocrinology, Diabetes and Metabolic Diseases, UMC - University Children's Hospital, Ljubljana, Slovenia.
Insights
Closed-loop systems improve glycemic control in children with type 1 diabetes. Recent advances show significant time in target range and reduced hypoglycemia in real-world settings.
Area of Science:
- Endocrinology
- Biomedical Engineering
Background:
- Type 1 diabetes management in children requires optimal glycemic control, which is difficult due to insulin variability.
- Glucose-responsive insulin delivery systems offer a potential solution.
Purpose of the Study:
- To review recent advances in closed-loop systems for pediatric type 1 diabetes.
- To assess outcomes like time in target glucose range and hypoglycemia.
Main Methods:
- Review of single- and dual-hormone closed-loop systems.
- Analysis of unsupervised, free-living randomized controlled trials.
- Focus on time in target range (70-180 mg/dl) and hypoglycemia (<70 mg/dl).
Main Results:
- Significant progress has been made in translating experimental findings to home settings.
- The first hybrid closed-loop system has been approved for pediatric use.
- Several advanced devices are in development.
Conclusions:
- Closed-loop systems demonstrate clinically meaningful improvements in glycemic control for children with type 1 diabetes.
- Ongoing trials aim to facilitate wider clinical adoption of these advanced systems.
Abstract:
Introduction: Optimal glycemic control remains challenging in children and adolescents with type 1 diabetes due to highly variable day-to-day and night-to-night insulin requirements. This hurdle could be addressed by glucose-responsive insulin delivery based on real-time continuous glucose measurements.Areas covered: This review summaries recent advances of closed-loop systems in children and adolescents with type 1 diabetes, using both single- and dual-hormone closed-loop systems. The main outcomes, proportions of time spent in target range 70-180 mg/dl, and time spent in hypoglycemia below 70 mg/dl, are assessed particularly during unsupervised free-living randomized controlled trials.Expert opinion: Noteworthy and clinically meaningful translation of experimental investigations from controlled in-hospital settings to unrestricted home studies have been achieved over the past years, resulting in the regulatory approval of the first hybrid closed-loop system also in the pediatric population and with several other advanced devices in the pipeline. Large multinational and pivotal clinical trials including broad age populations are underway to facilitate the use of closed-loop systems in routine clinical practice.
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