Mortality Benefit of Rivaroxaban Plus Aspirin in Patients With Chronic Coronary or Peripheral Artery Disease

Abstract

Background: The combination of 2.5 mg rivaroxaban twice daily and 100 mg aspirin once daily compared with 100 mg aspirin once daily reduces major adverse cardiovascular (CV) events in patients with chronic coronary artery disease (CAD) or peripheral artery disease (PAD).

Objectives: The aim of this work was to report the effects of the combination on overall and cause-specific mortality.

Methods: The COMPASS trial enrolled 27,395 patients of whom 18,278 were randomized to the combination (n = 9,152) or aspirin alone (n = 9,126). Deaths were adjudicated by a committee blinded to treatment allocation. Previously identified high-risk baseline features were polyvascular disease, chronic kidney disease, mild or moderate heart failure, and diabetes.

Results: During a median of 23 months of follow-up (maximum 47 months), 313 patients (3.4%) allocated to the combination and 378 patients (4.1%) allocated to aspirin alone died (hazard ratio [HR]: 0.82; 95% confidence interval [CI]: 0.71-0.96; P = 0.01). Compared with aspirin, the combination reduced CV death (160 [1.7%] vs 203 [2.2%]; HR: 0.78; 95% CI: 0.64-0.96; P = 0.02) but not non-CV death. There were fewer deaths following MI, stroke, and CV procedures, as well as fewer sudden cardiac, other, and unknown causes of CV deaths and coronary heart disease deaths. Patients with 0, 1, 2, and 3 or 4 high-risk features at baseline had 4.2, 4.8, 25.0, and 53.9 fewer deaths, respectively, per 1000 patients treated for 30 months.

Conclusions: The combination of rivaroxaban and aspirin compared with aspirin reduced overall and CV mortality with consistent reductions in cause specific CV mortality in patients with chronic CAD or PAD. The absolute mortality benefits are greater with increasing baseline risk. (Cardiovascular Outcomes for People Using Anticoagulant Strategies [COMPASS]; NCT01776424).

Keywords: aspirin; coronary artery disease; mortality; peripheral artery disease; rivaroxaban.

Conflict of interest statement

Funding Support and Author Disclosures The COMPASS study was sponsored by Bayer. Dr. Eikelboom has received consulting fees and grant support from AstraZeneca, Bayer, Boehringer Ingelheim, Bristol Myers Squibb, Daiichi-Sankyo, Eli-Lilly, GlaxoSmithKline, Pfizer, Janssen, Sanofi, and Servier. Dr. Bhatt discloses the following relationships: Advisory Board: Cardax, CellProthera, Cereno Scientific, Elsevier Practice Update Cardiology, Level Ex, Medscape Cardiology, MyoKardia, PhaseBio, PLx Pharma, and Regado Biosciences; Board of Directors: Boston VA Research Institute, Society of Cardiovascular Patient Care, and TobeSoft; Chair: American Heart Association Quality Oversight Committee; Data Monitoring Committee: Baim Institute for Clinical Research (formerly Harvard Clinical Research Institute, for the PORTICO trial, funded by St. Jude Medical, now Abbott), Cleveland Clinic (including for the ExCEED trial, funded by Edwards), Contego Medical (Chair, PERFORMANCE 2), Duke Clinical Research Institute, Mayo Clinic, Mount Sinai School of Medicine (for the ENVISAGE trial, funded by Daiichi Sankyo), and Population Health Research Institute; Honoraria: American College of Cardiology (Senior Associate Editor, Clinical Trials and News, and ACC.org; Vice-Chair, ACC Accreditation Committee), Baim Institute for Clinical Research (formerly Harvard Clinical Research Institute; RE-DUAL PCI clinical trial steering committee, funded by Boehringer Ingelheim; AEGIS-II executive committee, funded by CSL Behring), Belvoir Publications (Editor-in-Chief, Harvard Heart Letter), Canadian Medical and Surgical Knowledge Translation Research Group (clinical trial steering committees), Duke Clinical Research Institute (clinical trial steering committees, including for the PRONOUNCE trial, funded by Ferring Pharmaceuticals), HMP Global (Editor-in-Chief, Journal of Invasive Cardiology), Journal of the American College of Cardiology (Guest Editor, Associate Editor), K2P (Co-Chair, interdisciplinary curriculum), Level Ex, Medtelligence/ReachMD (CME steering committees), MJH Life Sciences, Population Health Research Institute (for the COMPASS operations committee, publications committee, steering committee, and USA national co-leader, funded by Bayer), Slack Publications (Chief Medical Editor, Cardiology Today’s Intervention), Society of Cardiovascular Patient Care (Secretary/Treasurer), and WebMD (CME steering committees); Other: Clinical Cardiology (Deputy Editor), NCDR-ACTION Registry Steering Committee (Chair), and VA CART Research and Publications Committee (Chair); Research Funding: Abbott, Afimmune, Amarin, Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, Bristol Myers Squibb, Cardax, Chiesi, CSL Behring, Eisai, Ethicon, Ferring Pharmaceuticals, Forest Laboratories, Fractyl, HLS Therapeutics, Idorsia, Ironwood, Ischemix, Lexicon, Lilly, Medtronic, MyoKardia, Owkin, Pfizer, PhaseBio, PLx Pharma, Regeneron, Roche, Sanofi, Synaptic, and The Medicines Company; Royalties: Elsevier (Editor, Cardiovascular Intervention: A Companion to Braunwald’s Heart Disease); Site Co-Investigator: Biotronik, Boston Scientific, CSI, St. Jude Medical (now Abbott), and Svelte; Trustee: American College of Cardiology; Unfunded Research: FlowCo, Merck, Novo Nordisk, Takeda. Dr. Fox has received grant support from Bayer and AstraZeneca; and has received consulting fees from Bayer/Janssen, Sanofi/Regeneron, and Verseon. Dr. Bosch has received fees for advisory board work for Bayer. Dr. Connolly has received lecture and consulting fees from BI, BMS, DSI, Medtronic, Pfizer, Portola, and Servier. Dr. Anand has received speaker fees and has provided consultation services for Bayer and Janssen. Dr. Avezum has received lecture fees from Bayer, Daiichi-Sankyo, Boehringer Ingelheim, Lilly, and NovoNordisk. Dr. Berkowitz is employed as a clinical research physician by Bayer US. Dr. Branch has received grant support from Bayer and Eli Lilly; and has provided consultation services for Janssen, Bayer, Sana, and Sanofi. Dr. Dagenais has received honoraria for lectures from Bayer and Eli Lilly. Dr. Guzik has received grants and speaking/consulting fees from Bayer during the conduct of the study. Dr. Hart participated in COMPASS and received research support and personal remuneration from Bayer. Dr. Maggioni has received personal fees for participation in committees of studies sponsored by Bayer, Fresenius, and Novartis outside the present work. Dr. Muehlhofer is employed as a global clinical lead by Bayer, Germany. Dr. Sharma has received grants and honoraria from Bayer, Boehringer Ingelheim, Bristol Myers Squibb, and Daiichi. Dr. Yusuf has received grants and honoraria from Bayer, Boehringer Ingelheim, AstraZeneca, Bristol Myers Squibb, and Cadila. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose.

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