Therapeutic Anticoagulation with Heparin in Noncritically Ill Patients with Covid-19
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Résumé
BACKGROUND: Thrombosis and inflammation may contribute to the risk of death and complications among patients with coronavirus disease 2019 (Covid-19). We hypothesized that therapeutic-dose anticoagulation may improve outcomes in noncritically ill patients who are hospitalized with Covid-19. METHODS: In this open-label, adaptive, multiplatform, controlled trial, we randomly assigned patients who were hospitalized with Covid-19 and who were not critically ill (which was defined as an absence of critical care-level organ support at enrollment) to receive pragmatically defined regimens of either therapeutic-dose anticoagulation with heparin or usual-care pharmacologic thromboprophylaxis. The primary outcome was organ support-free days, evaluated on an ordinal scale that combined in-hospital death (assigned a value of -1) and the number of days free of cardiovascular or respiratory organ support up to day 21 among patients who survived to hospital discharge. This outcome was evaluated with the use of a Bayesian statistical model for all patients and according to the baseline d-dimer level. RESULTS: The trial was stopped when prespecified criteria for the superiority of therapeutic-dose anticoagulation were met. Among 2219 patients in the final analysis, the probability that therapeutic-dose anticoagulation increased organ support-free days as compared with usual-care thromboprophylaxis was 98.6% (adjusted odds ratio, 1.27; 95% credible interval, 1.03 to 1.58). The adjusted absolute between-group difference in survival until hospital discharge without organ support favoring therapeutic-dose anticoagulation was 4.0 percentage points (95% credible interval, 0.5 to 7.2). The final probability of the superiority of therapeutic-dose anticoagulation over usual-care thromboprophylaxis was 97.3% in the high d-dimer cohort, 92.9% in the low d-dimer cohort, and 97.3% in the unknown d-dimer cohort. Major bleeding occurred in 1.9% of the patients receiving therapeutic-dose anticoagulation and in 0.9% of those receiving thromboprophylaxis. CONCLUSIONS: In noncritically ill patients with Covid-19, an initial strategy of therapeutic-dose anticoagulation with heparin increased the probability of survival to hospital discharge with reduced use of cardiovascular or respiratory organ support as compared with usual-care thromboprophylaxis. (ATTACC, ACTIV-4a, and REMAP-CAP ClinicalTrials.gov numbers, NCT04372589, NCT04505774, NCT04359277, and NCT02735707.).
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La notice
- Revue
- New England Journal of Medicine
- Thématique
- COVID-19 Clinical Research Studies
- Domaine
- Medicine
- Établissements canadiens
- —
- Organismes subventionnaires
- National Heart, Lung, and Blood InstituteHealth Research Council of New ZealandNational Health and Medical Research CouncilMedical Research CouncilFP7 HealthUniversity of PittsburghMedical Center, University of PittsburghNational Institutes of HealthMinderoo FoundationEisaiCanadian Institutes of Health ResearchNational Institute of General Medical SciencesNational Institute for Health and Care ResearchEuropean CommissionBreast Cancer Research FoundationNIHR Imperial Biomedical Research CentreAmgenNational Center for Advancing Translational SciencesWellcome Trust
- Mots-clés
- HeparinCritically illAnticoagulantRespiratory failureThrombosis
- Résumé présent dans OpenAlex
- oui