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Economic Implications of Preventing Major Cardiovascular and Limb Events with Rivaroxaban plus Aspirin in Patients with Coronary or Peripheral Artery Disease in the United States.


ABSTRACT:

Background

Patients with chronic coronary artery disease (CAD) and/or peripheral artery disease (PAD) have increased risks for cardiovascular (CV)-related morbidity and mortality. In the Cardiovascular Outcomes for People Using Anticoagulation Strategies (COMPASS) clinical trial of such patients, rivaroxaban plus aspirin demonstrated a significant reduction in major adverse CV events (MACE), a composite of stroke, myocardial infarction, and CV death, and major adverse limb events (MALE), a composite of chronic and acute limb ischemia, and major amputation resulting from vascular events, versus aspirin alone.

Objective

To estimate the 1-year economic implications of preventing MACE and MALE with the use of rivaroxaban plus aspirin versus aspirin alone among patients with chronic CAD and/or PAD in a US commercial health plan.

Method

A cost-consequence model was developed to evaluate the economic impact of rivaroxaban plus aspirin in a hypothetical 1-million-member health plan. The model inputs were taken from the COMPASS study (ie, the efficacy and safety of rivaroxaban plus aspirin vs aspirin), Optum Integrated Database (ie, the prevalence of chronic CAD and/or PAD, incidence rates, and healthcare costs of MACE, MALE, and major bleeding), and the RED BOOK (ie, wholesale drug acquisition costs). The cost inputs were in 2019 US dollars. One-way sensitivity analyses and subgroup analyses were conducted.

Results

A 1-year treatment with rivaroxaban plus aspirin resulted in reductions of MACE and MALE, which balance the increased risk for bleeding versus aspirin alone and indicate a net health benefit for this drug regimen. These reductions were achieved at an incremental per-member per-month (PMPM) cost of $0.16, mainly because of rivaroxaban's acquisition cost. In patients with ?2 MACE or MALE risk factors, the incremental PMPM cost was $0.09, given the increased offset in rivaroxaban's acquisition cost by reduced rates of MACE or MALE.

Conclusions

In an era of emerging thrombocardiology, treatment with rivaroxaban plus aspirin offers an effective thrombotic risk management strategy for healthcare stakeholders in the management of chronic CAD and/or PAD. The contribution of rivaroxaban would be greater in patients with ?2 risk factors for MACE or MALE.

SUBMITTER: Hernandez L 

PROVIDER: S-EPMC7741174 | BioStudies | 2020-01-01

REPOSITORIES: biostudies

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