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Six Months of Hybrid Closed-Loop Therapy Enhances Diabetes Well-Being and Reduces Distress: A Secondary Analysis of a Randomized Controlled Trial

BMJ open diabetes research & care
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Jennifer A Halliday, Sienna Russell-Green, Benjamin Lam, Steven Trawley, Sybil A McAuley, Leon A Bach, Morton G Burt, Neale D Cohen, Peter G Colman, Elizabeth A Davis, Deborah Jane Holmes-Walker, Alicia J Jenkins, Joey Kaye, Anthony C Keech, Melissa H Lee, Roland W McCallum, Barbora Paldus, Stephen N Stranks, Vijaya Sundararajan, Glenn Ward, Timothy W Jones, David O'Neal, Jane Speight, Christel Hendrieckx,

In a significant advancement for diabetes care, Australian researchers have revealed the psychological benefits of hybrid closed-loop (HCL) therapy for adults with type 1 diabetes (T1D). This innovative approach not only improves positive well-being but also reduces distress, marking a notable leap forward in diabetes management.


Key Findings

  • Enhanced Well-Being: Participants using HCL therapy reported improved diabetes-specific positive well-being compared to those on standard therapy at both 13 and 26 weeks.

  • Decreased Distress: The HCL group experienced a marked reduction in diabetes-related distress and fear of hypoglycemia at the 26-week mark.

  • Consistent Benefits: These psychological improvements were evident at 13 weeks and persisted through 26 weeks.

"HCL therapy offers significant psychological benefits, particularly in enhancing positive well-being and reducing distress," said Jennifer A. Halliday, lead author of the study.

Why It Matters

Living with type 1 diabetes requires constant vigilance and management, often leading to psychological challenges such as distress and fear of hypoglycemia. HCL therapy, which automates insulin delivery, not only supports physical health management but also significantly enhances mental well-being. This breakthrough is vital for improving the quality of life for individuals managing this chronic condition.

The study, conducted by Deakin University and other Australian institutions, emphasizes the importance of integrating psychological outcomes into diabetes management strategies. By addressing both physical and mental health, HCL therapy provides a comprehensive approach to diabetes care.


Research Details

This multicenter, open-label, randomized controlled trial involved 120 participants with T1D, divided into two groups. One group utilized the MiniMed™ 670G HCL system, while the control group continued with standard therapy methods, such as insulin pumps or multiple daily injections without real-time continuous glucose monitoring.

Psychological outcomes were assessed at enrollment, mid-trial (13 weeks), and end-trial (26 weeks) through online surveys. The study focused on key metrics, including diabetes-specific positive well-being, diabetes distress, and fear of hypoglycemia.

"The ability to reduce diabetes distress and fear of hypoglycemia significantly enhances the quality of life for those managing type 1 diabetes," said Sienna Russell-Green, co-author of the study.

The analysis indicated that participants using HCL therapy consistently experienced improvements in positive well-being and reductions in distress and fear of hypoglycemia compared to those on standard therapy.


Looking Ahead

The promising results of this study pave the way for broader adoption of HCL systems in diabetes management. The psychological benefits observed suggest that incorporating advanced technology into diabetes care can lead to substantial improvements in patients' quality of life.

As the research community continues to explore the potential of HCL therapy, future studies may focus on long-term impacts and the integration of such systems into everyday diabetes management. The findings also encourage healthcare providers to consider psychological outcomes as integral to treatment plans, ensuring a holistic approach to diabetes care.

"This research highlights the transformative potential of technology in managing diabetes and improving lives," said Benjamin Lam, co-author of the study.

The study, registered with the Australian New Zealand Clinical Trials Registry (ACTRN12617000520336), represents a pivotal step in understanding and enhancing the lived experiences of individuals with type 1 diabetes through innovative therapies.

Diabetes