The cost-effectiveness of rivaroxaban with or without aspirin in the COMPASS trial.

Abstract

AIMS:

The Cardiovascular Outcomes for People Using Anticoagulation Strategies (COMPASS) trial demonstrated that rivaroxaban 2.5 mg BID with aspirin 100 mg was more effective than aspirin 100 mg daily alone for the prevention of cardiovascular (CV) death, stroke, or myocardial infarction in patients with stable coronary artery disease (CAD) or peripheral artery disease (PAD). We aimed to examine the cost-effectiveness of rivaroxaban using patient-level data from the COMPASS trial.

METHODS AND RESULTS:

We performed an in-trial analysis and extrapolated our results for 33 years using a two-state Markov model with a 1-year cycle length. Hospitalization events, procedures, and study drugs were documented for patients. We applied country-specific (Canada, France, and Germany) direct healthcare system costs (in USD) to healthcare resources consumed by patients. Average cost per patient during the trial (mean follow-up of 23 months), quality-adjusted life years (QALYs), and lifetime cost-effectiveness were calculated. Costs of events and procedures were reduced with rivaroxaban 2.5 mg BID with aspirin. The addition of rivaroxaban 2.5 mg BID increased total costs for the combination group. Over a lifetime horizon (in trial +33 years), rivaroxaban plus aspirin was associated with 1.17 QALYs gained, yielding an incremental cost-effectiveness ratio (ICER) of $3946/QALY, $9962/QALY, and $10 264/QALY in Canada, France, and Germany, respectively. PAD and polyvascular disease subgroups had lower ICERs.

CONCLUSION:

Rivaroxaban 2.5 mg twice daily plus aspirin compared with aspirin alone reduces direct healthcare costs. After acquisition costs of rivaroxaban, the lifetime cost-effectiveness of 2.5 mg twice daily plus aspirin is highly cost-effective in Canada, France, and Germany.(COMPASS ClinicalTrials.gov identifier: NCT01776424).

• Authors: Andre Lamy, John Eikelboom, Wesley Tong, Fei Yuan, Shrikant I Bangdiwala, Jackie Bosch, Stuart Connolly, Eva Lonn, Gilles R Dagenais, Kelley R H Branch, Wei-Jhih Wang, Deepak L Bhatt, Jeff Probstfield, Georg Ertl, Stefan Störk, P Gabriel Steg, Victor Aboyans, Isabelle Durand-Zaleski, Lars Ryden, Salim Yusuf
• Journal: European heart journal. Quality of care & clinical outcomes (Eur Heart J Qual Care Clin Outcomes) Vol. 9 Issue 5 Pg. 502-510 (08 07 2023) ISSN: 2058-1742 [Electronic] England
• PMID: 36001989 (Publication Type: Clinical Trial, Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: © The Author(s) 2022. Published by Oxford University Press on behalf of the European Society of Cardiology.

Chemical References

• Aspirin
• Factor Xa Inhibitors
• Rivaroxaban

Topics

• Humans
• Aspirin (therapeutic use)
• Cost-Benefit Analysis
• Drug Therapy, Combination
• Factor Xa Inhibitors (therapeutic use)
• Peripheral Arterial Disease (drug therapy)
• Rivaroxaban (therapeutic use)