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Clinical Trial Summary

Coronavirus Disease (COVID-19), caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), has led to unprecedented morbidity and mortality in the modern era. To date, nearly 13 million people have contracted COVID-19, leading to more than 550,000 deaths worldwide. As the number of affected individuals continues to climb, effective strategies for treatment and prevention of the disease are of paramount importance. SARS-CoV-2 is understood to directly invade cells via the human angiotensin-converting enzyme 2 (ACE2) receptor, which is expressed predominantly in the lungs but also throughout the cardiovascular system. Thus, while acute respiratory distress syndrome remains a feared complication, new thromboembolic disease has emerged as a common and potentially catastrophic manifestation of COVID-19.

Clinical Trial Description

This is a Prospective, multi-center, open label, randomized controlled comparative safety and effectiveness trial with objectives: 1. To determine the effectiveness of enoxaparin and apixaban in patients hospitalized (but not yet intubated) with confirmed COVID-19 and 2. To determine the safety of enoxaparin and apixaban in patients hospitalized (but not yet intubated) with confirmed COVID-19. Observational analyses have suggested potential benefit for in-hospital use of anticoagulation. Yet, due to a lack of rigorous evidence for optimal anticoagulation regimens, practice patterns among hospitalized patients with COVID-19 vary significantly. Specifically, the choice of anticoagulant, dosing, and duration of treatment are not well understood. A preliminary analysis of approximately 2700 patients admitted to the Mount Sinai Health System (MSHS) in New York, demonstrated an association between in-hospital administration of therapeutic Anticoagulation (AC) and improved survival compared to no or prophylactic dose AC. A subsequent analysis under review of a larger 4400 patient cohort with longer follow up demonstrated similar associations with reduction in the risk of mortality and risk of intubation. Further analyses suggest more pronounced benefit with therapeutic as opposed to prophylactic doses. Bleeding rates were generally low overall, but higher among patients on therapeutic anticoagulation. Finally, though exploratory in nature, a potential signal for benefit was observed for patients on novel oral anticoagulant therapy (primarily apixaban) at therapeutic doses compared to low molecular weight heparin. Ultimately, randomized controlled trials are needed to elucidate the optimal anticoagulation regimen to improve outcomes in patients hospitalized with COVID-19. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT04512079
Study type Interventional
Source Icahn School of Medicine at Mount Sinai
Status Completed
Phase Phase 4
Start date September 8, 2020
Completion date December 30, 2022

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