scholarly journals Antithrombotic Treatments in Patients with Chronic Coronary Artery Disease or Peripheral Artery Disease: A Systematic Review of Randomised Controlled Trials

2020 ◽  
Vol 2020 ◽  
pp. 1-11 ◽  
Author(s):  
Rupert Bauersachs ◽  
Olivia Wu ◽  
Jean-Baptiste Briere ◽  
Kevin Bowrin ◽  
Katarzyna Borkowska ◽  
...  

Aims. Acetylsalicylic acid (ASA) is widely used for the prevention of atherothrombotic events in patients with chronic coronary artery disease (CAD) and peripheral artery disease (PAD), but the risk of vascular events remains high. We aimed at identifying randomised controlled trials (RCTs) on antithrombotic treatments in patients with chronic CAD or PAD. Methods. Searches were conducted on MEDLINE, EMBASE, and CENTRAL on March 1st, 2018. This systematic review (SR) uses a narrative synthesis to summarize the evidence for the efficacy and safety of antiplatelet and anticoagulant therapies in the population of both chronic CAD or PAD patients. Results. Four RCTs from 27 publications were included. Study groups included 15,603 to 27,395 patients. ASA alone was the most extensively studied (n=3); other studies included rivaroxaban with or without ASA (n=1), vorapaxar alone (n=1), and clopidogrel with (n=1) or without ASA (n=1). Clopidogrel alone and clopidogrel plus ASA compared to ASA presented similar efficacy with comparable safety profile. Rivaroxaban plus ASA significantly reduced the risk of the composite of cardiovascular death, myocardial infarction, and stroke compared to ASA alone, although major bleeding with rivaroxaban plus ASA increased. Conclusion. There is limited and heterogeneous evidence on the prevention of atherothrombotic events in patients with chronic CAD or PAD. Clopidogrel alone and clopidogrel plus ASA did not demonstrate superiority over ASA alone. A combination of rivaroxaban plus ASA may offer significant additional benefit in reducing cardiovascular outcomes, yet it may increase the risk of bleeding, compared to ASA alone.

Author(s):  
Yan Liang ◽  
Jun Zhu ◽  
Lisheng Liu ◽  
Sonia S Anand ◽  
Stuart J Connolly ◽  
...  

Abstract Aims The COMPASS trial demonstrated that the combination of rivaroxaban 2.5 mg twice daily and aspirin 100 mg once daily compared with aspirin 100 mg once daily reduced major adverse cardiovascular events (MACE) in patients with chronic coronary artery disease or peripheral artery disease by 24% during a mean follow-up of 23 months. We explored whether this effect varies by sex. Methods and results The effects were examined in women and men using log-rank tests and Kaplan–Meier curve. Hazard ratios (HRs) and corresponding 95% confidence intervals (CIs) were obtained from stratified Cox proportional hazards models to explore subgroup effects including subgroup of women and men according to baseline modified REACH risk score. Of 27 395 patients randomized, 18 278 were allocated to receive rivaroxaban plus aspirin (n = 9152) or aspirin alone (n = 9126), and of these, 22.1% were women. Women compared with men had similar incidence rates for MACE and major bleeding but borderline lower rates for myocardial infarction (1.7% vs. 2.2%, P = 0.05). The effect of combination therapy compared with aspirin in women and men was consistent for MACE (women: 3.8% vs. 5.2%, HR 0.72, 95% CI 0.54–0.97; men: 4.2% vs. 5.5%, HR 0.76, 95% CI 0.66–0.89; P interaction 0.75) and major bleeding (women: 3.1% vs. 1.4%, HR 2.22, 95% CI 1.42–3.46; men: 3.2% vs. 2.0%, HR 1.60, 95% CI 1.29–1.97; P interaction 0.19). There was no significant interaction between randomized treatment and baseline modified REACH score above or below the median for MACE or major bleeding. Conclusion In patients with stable coronary artery disease or peripheral artery disease, the combination of rivaroxaban (2.5 mg twice daily) and aspirin compared with aspirin alone appears to produce consistent benefits in women and men, independent of baseline cardiovascular risk.


2019 ◽  
Vol 116 (11) ◽  
pp. 1918-1924 ◽  
Author(s):  
Martin R Cowie ◽  
André Lamy ◽  
Pierre Levy ◽  
Stuart Mealing ◽  
Aurélie Millier ◽  
...  

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.


2019 ◽  
Vol 27 (19) ◽  
pp. 2387-2392 ◽  
Author(s):  
Lucia Cugusi ◽  
Andrea Manca ◽  
Pier Paolo Bassareo ◽  
Antonio Crisafulli ◽  
Franca Deriu ◽  
...  

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