Cost-Effectiveness of FreeStyle Libre for Glucose Self-Management Among People with Diabetes Mellitus: A Canadian Private Payer Perspective.

Abstract

For people living with diabetes, effective glucose monitoring is a key component in diabetes care, helping to reduce disease burden, complications, and healthcare utilization. Sensor-based glucose monitoring systems, which can provide more comprehensive information about glucose levels than capillary-based self-monitoring of blood glucose (SMBG), are becoming established among people living with diabetes. The objective of this study was to assess the cost-effectiveness of glucose monitoring with FreeStyle Libre systems, compared with SMBG, from the perspective of a Canadian private payer. The analysis used the validated, person-level microsimulation model DEDUCE (Determination of Diabetes Utilities, Costs, and Effects). Analyses were conducted separately for populations of people with type 1 and type 2 diabetes mellitus (T1DM; T2DM), with time horizons of 40 and 25years, respectively. T2DM treatment was assumed to be 84% non-insulin, 10% basal insulin, and 6% multiple daily injections of insulin. The effect of FreeStyle Libre was modeled as reductions versus SMBG in glycated hemoglobin level (T1DM, - 0.42%; insulin-treated T2DM, - 0.59%; non-insulin-treated T2DM, - 0.3%) and in acute diabetic events (hypoglycemia and diabetic ketoacidosis). Costs (in 2023Canadian dollars (Can$)) and utilities were discounted at 1.5%. Outcomes were assessed as costs andquality-adjusted life years (QALYs). In both populations, FreeStyle Libre was dominant to SMBG, providing more QALYs at a lower cost (T1DM: + 1.25 QALYs, - Can$32,287 costs; T2DM: + 0.48 QALYs, - Can$8091 costs). Reductions were seen in the cumulative incidence of all complications (except blindness in the T1DM analysis). FreeStyle Libre was dominant to SMBG in all scenarios tested. Probabilistic sensitivity analysis showed that FreeStyle Libre had a 100% probability of being dominant to SMBG for T1DM and a 91% probability of being dominant for T2DM. This economic analysis shows that, from a Canadian private payer perspective, FreeStyle Libre is cost-effective compared with SMBG for all people living with diabetes.