Healthcare Resource Utilization and Associated Costs in New Users of Empagliflozin versus DPP-4 Inhibitors and GLP-1 Agonists: A Comparative Analysis Based on Retrospective Real-World Data from German Sickness Funds

Abstract

Purpose: Achieving good glycemic control in type 2 diabetes (T2DM) may require individualized pharmacological approaches. We aimed to compare direct healthcare costs in patients treated with empagliflozin (EMPA) compared to dipeptidyl peptidase-4 inhibitors (DPP-4i) or glucagon-like peptide-1 receptor agonists (GLP-1-RA). Patients and Methods: This German claims data study included continuously insured persons with at least two outpatient diagnoses and/or one inpatient diagnosis of T2DM if they started EMPA, DPP-4i, or GLP-1-RA in 2015– 2018. Healthcare costs were assessed from therapy initiation until the end of data availability, death, or therapy discontinuation and compared among propensity score-matched cohorts. Results: Of 24,465 patients included, 3285 received EMPA, 19,443 DPP-4i, and 1747 GLP-1-RA. Matched cohorts were balanced on baseline characteristics (EMPA versus DPP-4i: n 1 /n 2 = 3100/3100 and EMPA versus GLP-1-RA: n 3 /n 4 = 1346/1346). Mean total costs after start of DPP-4i were € 7009 (95%-CI: 6573– 7444) versus € 4274 (3982– 4566) for EMPA. Costs associated with GLP-1-RA treatment were also significantly higher compared with EMPA (€ 6851 [6183– 7518] versus € 4895 [4345– 5445]). Conclusion: Although the individual clinical patient profile and physician assessment are paramount in treatment decisions, substantial differences in the economic impact of different antidiabetic therapies should be considered. Keywords: type 2 diabetes mellitus, sodium-glucose cotransporter-2 inhibitor, DPP-4 inhibitors, GLP-1 receptor agonists, healthcare costs