Arthur Darmon1,2, Deepak L Bhatt3, Yedid Elbez1, Victor Aboyans1,4, Sonia Anand5, Jackie Bosch5, Kelley R Branch6, Stuart J Connolly5, Leanne Dyal5, John W Eikelboom5, Keith A A Fox7, Katalin Keltai8, Jeffrey Probstfield6, Salim Yusuf5, Jérémie Abtan1,9, Emmanuel Sorbets1,10, Kim A Eagle11, Gregory Ducrocq1,2,9, Philippe Gabriel Steg1,2,9,12. 1. Département Hospitalo-Universitaire FIRE, FACT French Alliance for Cardiovascular Trials, 46 Rue Henri Huchard, Assistance Publique-Hôpitaux de Paris, 75018 Paris, France. 2. INSERM U1148, Laboratory for Vascular Translationnal Science, 46 Rue Henri Huchard, 75018 Paris, France. 3. Department of Cardiology, Brigham and Women's Hospital Heart & Vascular Center, 75 Francis Street, Boston, MA 02115, USA. 4. Department of Cardiology, CHU Dupuytren, 2 Avenue Martin Luther King, 87000 Limoges, France. 5. Population Health Research Institute, Hamilton Health Sciences and McMaster University, 237 Barton Street East, Hamilton, ON L8L 2X2, Canada. 6. Department of Cardiology, University of Washington, Seattle, WA 98195, USA. 7. Center for Cardiovascular Science, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4T, UK. 8. Semmelweis University, Budapest, Ülloi út 26, 1085, Hungary. 9. Université Paris-Diderot, Sorbonne Paris Cité, 5 rue Thomas Mann, 75013 Paris, France. 10. Department of Cardiology, Hôpital Avicenne, AP-HP & Université Paris 13, 25 Rue de Stalingrad, 93000 Bobigny, France. 11. University of Michigan, Ann Arbor, MI 48109, USA. 12. Imperial College, Royal Brompton Hospital, London, UK.
Abstract
Aims: The aims of the present study were to describe the proportion of patients eligible for the COMPASS trial within the Reduction of Atherothrombosis for Continued Health (REACH) registry, the reasons for ineligibility, and to put in perspective the characteristics and outcomes of trial-eligible patients from the REACH registry compared with those of patients enrolled in the reference aspirin arm of the COMPASS trial. Methods and results: The COMPASS selection and exclusion criteria were applied to REACH patients with either coronary artery disease (CAD) or peripheral artery disease (PAD). We used the COMPASS primary composite outcome of cardiovascular (CV) death, myocardial infarction (MI), or stroke. In REACH, 31 873 patients had CAD or PAD and detailed information allowing evaluation of eligibility. Among these, 9518 (29.9%) patients had exclusion criteria and an additional 5480 patients (17.2%) did not fulfil the inclusion criteria and thus were not eligible. The 'COMPASS-Eligible' population therefore comprised 52.9% of the evaluable REACH patients (n = 16 875). The main reasons for exclusion were high-bleeding risk (51.8%), anticoagulant use (44.8%), requirement for dual antiplatelet therapy within 1 year of an ACS or PCI with stent, (25.9%), history of ischaemic stroke <1 year (12.4%), and severe renal failure (2.2%). Eligibility was highest among patients with PAD alone (68.4%). COMPASS-Eligible patients from REACH experienced higher annualized primary outcome event rates than patients actually enrolled in the reference aspirin arm of COMPASS (4.2% vs. 2.9% per year, P < 0.001). Conclusion: COMPASS-Eligible patients represent a substantial fraction of stable CAD/PAD patients encountered in routine clinical practice in the large international REACH registry suggesting good external applicability. COMPASS-Eligible patients experienced a higher rate of the primary outcome compared with COMPASS participants in the aspirin alone treatment arm. Published on behalf of the European Society of Cardiology. All rights reserved.
Aims: The aims of the present study were to describe the proportion of patients eligible for the COMPASS trial within the Reduction of Atherothrombosis for Continued Health (REACH) registry, the reasons for ineligibility, and to put in perspective the characteristics and outcomes of trial-eligible patients from the REACH registry compared with those of patients enrolled in the reference aspirin arm of the COMPASS trial. Methods and results: The COMPASS selection and exclusion criteria were applied to REACH patients with either coronary artery disease (CAD) or peripheral artery disease (PAD). We used the COMPASS primary composite outcome of cardiovascular (CV) death, myocardial infarction (MI), or stroke. In REACH, 31 873 patients had CAD or PAD and detailed information allowing evaluation of eligibility. Among these, 9518 (29.9%) patients had exclusion criteria and an additional 5480 patients (17.2%) did not fulfil the inclusion criteria and thus were not eligible. The 'COMPASS-Eligible' population therefore comprised 52.9% of the evaluable REACH patients (n = 16 875). The main reasons for exclusion were high-bleeding risk (51.8%), anticoagulant use (44.8%), requirement for dual antiplatelet therapy within 1 year of an ACS or PCI with stent, (25.9%), history of ischaemic stroke <1 year (12.4%), and severe renal failure (2.2%). Eligibility was highest among patients with PAD alone (68.4%). COMPASS-Eligible patients from REACH experienced higher annualized primary outcome event rates than patients actually enrolled in the reference aspirin arm of COMPASS (4.2% vs. 2.9% per year, P < 0.001). Conclusion: COMPASS-Eligible patients represent a substantial fraction of stable CAD/PAD patients encountered in routine clinical practice in the large international REACH registry suggesting good external applicability. COMPASS-Eligible patients experienced a higher rate of the primary outcome compared with COMPASS participants in the aspirin alone treatment arm. Published on behalf of the European Society of Cardiology. All rights reserved.
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