Abstract
Hybrid closed loop (HCL) insulin pump systems and intermittently scanned continuous glucose monitoring (IS-CGM) are increasingly used by individuals with type 1 diabetes (T1D). The aim of the analysis was to compare the long-term cost-effectiveness of the MiniMed 670G HCL system versus IS-CGM plus multiple daily injections of insulin (MDI) or continuous subcutaneous insulin infusion (CSII) in adults with T1D in the Netherlands. The analysis was performed using the IQVIA CORE Diabetes Model with clinical input data sourced from observational studies. Simulated patients were assumed to have a baseline HbA1c of 7.8%. Use of the MiniMed 670G system was assumed to reduce HbA1c by 0.4% and confer a quality-of-life (QoL) benefit through reduced fear of hypoglycemia (FoH). The analysis was performed from a societal perspective over a lifetime time horizon; future costs and clinical outcomes pertaining to the Netherlands were used and discounted at 4% and 1.5% per annum, respectively. Use of the MiniMed 670G HCL system was projected to improve mean quality-adjusted life expectancy by 2.231 quality-adjusted life years (QALYs) versus IS-CGM. Total mean lifetime costs were EUR13,683 higher with the MiniMed 670G system resulting in an ICER of EUR6133 per QALY gained. Sensitivity analyses revealed findings to be sensitive to changes in assumptions around severe hypoglycemic event rates and the (QoL) benefit associated with reduced FoH. Over patient lifetimes, for adults with long-standing T1D in the Netherlands, use of the MiniMed 670G system is projected to be cost-effective versus IS-CGM plus MDI or CSII.
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