Economic impact associated with dronedarone use in patients with atrial fibrillation.

Objective/aim: In 2009, dronedarone was approved by the United States Food and Drug Administration based on results from the ATHENA trial (NCT00174785), which showed significant reduction of cardiovascular (CV) hospitalization and death in patients with atrial fibrillation (AF) randomized to dronedarone versus placebo. In 2020, a retrospective study by Goehring et al. showed CV hospitalizations and deaths were lower in clinical practice following initiation of dronedarone compared to other antiarrhythmic drugs (AADs) in patients with AF and atrial flutter. However, the economic impact associated with dronedarone use has not been fully assessed. The objective of this study was to estimate the cost associated with CV outcomes reported by Goehring et al. (2020).

Methods: National average Medicare payments in the Centers for Medicare and Medicaid Services (CMS) database (www.data.CMS.gov) were used to assign cost estimates to CV outcomes evaluated in Goehring et al. (2020) by diagnosis-related grouping. When costs were unavailable in the CMS database, a literature search was performed to identify publications reporting hospitalization costs.

Results: The weighted average cost for CV hospitalization was calculated to be $20,508. When multiplied by the event rate reported in Goehring et al. (2020), cost per person year for CV hospitalization was 14% lower with dronedarone versus other AADs ($3,679 vs $4,272, respectively). For hospitalizations due to heart failure, cost was 31% lower with dronedarone compared with other AADs ($324 vs $472, respectively).

Limitations: Costs have been calculated based on national averages reported by CMS (Medicare perspective) and are estimates. Regional differences may be present.

Conclusions: Patients with AF taking dronedarone had lower costs associated with CV hospitalization compared with patients taking other AADs.