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Health economic evaluation of rivaroxaban in the treatment of patients with chronic coronary artery disease or peripheral artery disease.

ABSTRACT: AIMS:In the COMPASS trial, rivaroxaban 2.5?mg twice daily (bid) plus acetylsalicylic acid (ASA) 100?mg once daily (od) performed better than ASA 100?mg od alone in reducing the rate of cardiovascular disease, stroke, or myocardial infarction (MI) in patients with coronary artery disease (CAD) and peripheral artery disease (PAD). A Markov model was developed to assess the cost-effectiveness of rivaroxaban plus ASA vs. ASA alone over a lifetime horizon, from the UK National Health System perspective. METHODS AND RESULTS:The base case analysis assumed that patients entered the model in the event-free health state, with the possibility to experience ?2 events, transitioning every three-month cycle, through acute and post-acute health states of MI, ischaemic stroke (IS), or intracranial haemorrhage (ICH), and death. Costs, quality-adjusted life-years (QALYs), life years-all discounted at 3.5%-and incremental cost-effectiveness ratios (ICERs) were calculated. Deterministic and probabilistic sensitivity analyses were conducted, as well as scenario analyses. In the model, patients on rivaroxaban plus ASA lived for an average of 14.0?years with no IS/MI/ICH, and gained 9.7 QALYs at a cost of £13 947, while those receiving ASA alone lived for an average of 12.7?years and gained 9.3 QALYs at a cost of £8126. The ICER was £16 360 per QALY. This treatment was cost-effective in 98% of 5000 iterations at a willingness-to-pay threshold of £30 000 per QALY. CONCLUSION:This Markov model suggests that rivaroxaban 2.5?mg bid plus ASA is a cost-effective alternative to ASA alone in patients with chronic CAD or PAD.

SUBMITTER: Cowie MR

PROVIDER: S-EPMC7449563 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Health economic evaluation of rivaroxaban in the treatment of patients with chronic coronary artery disease or peripheral artery disease.

Cowie Martin R MR Lamy André A Levy Pierre P Mealing Stuart S Millier Aurélie A Mernagh Paul P Cristeau Olivier O Bowrin Kevin K Briere Jean-Baptiste JB

Cardiovascular research 20200901 11

<h4>Aims</h4>In the COMPASS trial, rivaroxaban 2.5 mg twice daily (bid) plus acetylsalicylic acid (ASA) 100 mg once daily (od) performed better than ASA 100 mg od alone in reducing the rate of cardiovascular disease, stroke, or myocardial infarction (MI) in patients with coronary artery disease (CAD) and peripheral artery disease (PAD). A Markov model was developed to assess the cost-effectiveness of rivaroxaban plus ASA vs. ASA alone over a lifetime horizon, from the UK National Health System p ...[more]

PMID: 31807773

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Project description:BackgroundPatients with chronic coronary artery disease or peripheral artery disease and history of heart failure (HF) are at high risk for major adverse cardiovascular events. We explored the effects of rivaroxaban with or without aspirin in these patients.MethodsThe COMPASS trial (Cardiovascular Outcomes for People Using Anticoagulation Strategies) randomized 27 395 participants with chronic coronary artery disease or peripheral artery disease to rivaroxaban 2.5 mg twice daily plus aspirin 100 mg daily, rivaroxaban 5 mg twice daily alone, or aspirin 100 mg alone. Patients with New York Heart Association functional class III or IV HF or left ventricular ejection fraction (EF) <30% were excluded. The primary major adverse cardiovascular events outcome comprised cardiovascular death, stroke, or myocardial infarction, and the primary safety outcome was major bleeding using modified International Society of Thrombosis and Haemostasis criteria. Investigators recorded a history of HF and EF at baseline, if available. We examined the effects of rivaroxaban on major adverse cardiovascular events and major bleeding in patients with or without a history of HF and an EF <40% or ≥40% at baseline.ResultsOf the 5902 participants (22%) with a history of HF, 4971 (84%) had EF recorded at baseline, and 12% had EF <40%. Rivaroxaban and aspirin had similar relative reduction in major adverse cardiovascular events compared with aspirin in participants with HF (5.5% versus 7.9%; hazard ratio [HR], 0.68; 95% CI, 0.53-0.86) and those without HF (3.8% versus 4.7%; HR, 0.79; 95% CI, 0.68-0.93; P for interaction 0.28) but larger absolute risk reduction in those with HF (HF absolute risk reduction 2.4%, number needed to treat=42; no HF absolute risk reduction 1.0%, number needed to treat=103). The primary major adverse cardiovascular events outcome was not statistically different between those with EF <40% (HR, 0.88; 95% CI, 0.55-1.42) and ≥40% (HR, 0.81; 95% CI, 0.67-0.98; P for interaction 0.36). The excess hazard for major bleeding was not different in participants with HF (2.5% versus 1.8%; HR, 1.36; 95% CI, 0.88-2.09) than in those without HF (3.3% versus 1.9%; HR, 1.79; 95% CI, 1.45-2.21; P for interaction 0.26). There were no significant differences in the primary outcomes with rivaroxaban alone.ConclusionsIn patients with chronic coronary artery disease or peripheral artery disease and a history of mild or moderate HF, combination rivaroxaban and aspirin compared with aspirin alone produces similar relative but larger absolute benefits than in those without HF.Clinical trial registrationURL: https://www.clinicaltrials.gov. Unique identifier: NCT01776424.

Project description:BackgroundPatients 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.ObjectiveTo 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.MethodA 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.ResultsA 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.ConclusionsIn 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.

Project description:ObjectiveTo evaluate the cost-effectiveness of percutaneous coronary intervention (PCI) compared with placebo in patients with single-vessel coronary artery disease and angina despite anti-anginal therapy.DesignA cost-effectiveness analysis comparing PCI with placebo. A Markov model was used to measure incremental cost-effectiveness, in cost per quality-adjusted life-years (QALYs) gained, over 12 months. Health utility weights were estimated using responses to the EuroQol 5-level questionnaire, from the Objective Randomised Blinded Investigation with optimal medical Therapy of Angioplasty in stable angina trial and UK preference weights. Costs of procedures and follow-up consultations were derived from Healthcare Resource Group reference costs and drug costs from the National Health Service (NHS) drug tariff. Probabilistic sensitivity analysis was undertaken to test the robustness of results to parameter uncertainty. Scenario analyses were performed to test the effect on results of reduced pharmaceutical costs in patients undergoing PCI, and the effect of patients crossing over from placebo to PCI due to refractory angina within 12 months.SettingFive UK NHS hospitals.Participants200 adult patients with stable angina and angiographically severe single-vessel coronary artery disease on anti-anginal therapy.InterventionsAt recruitment, patients received 6 weeks of optimisation of medical therapy for angina after which they were randomised to PCI or a placebo procedure.Outcome measuresIncremental cost-effectiveness ratio (ICER) expressed as cost (in £) per QALY gained for PCI compared with placebo.ResultsThe estimated ICER is £90 218/QALY gained when using PCI compared with placebo in patients receiving medical treatment for angina due to single-vessel coronary artery disease. Results were robust under sensitivity analyses.ConclusionsThe ICER for PCI compared with placebo, in patients with single-vessel coronary artery disease and angina on anti-anginal medication, exceeds the threshold of £30?000 used by the National Institute of Health and Care Excellence when undertaking health technology assessment for the NHS context.Trial registration: The ORBITA study is registered with ClinicalTrials.gov, number NCT02062593.

Dataset Information

Health economic evaluation of rivaroxaban in the treatment of patients with chronic coronary artery disease or peripheral artery disease.

Publications

Health economic evaluation of rivaroxaban in the treatment of patients with chronic coronary artery disease or peripheral artery disease.

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