High Versus Low LMWH Dosages in Hospitalized Patients With Severe COVID-19 Pneumonia and Coagulopathy

Summary

Randomized, controlled study conducted in hospitalized patients with severe COViD-19 pneumonia and coagulopathy not requiring invasive mechanical ventilation. Aim of this study is to assess whether high doses of Low Molecular Weight Heparin (LMWH) (ie. Enoxaparin 70 IU/kg twice daily) compared to standard prophylactic dose (ie, Enoxaparin 4000 IU once day) are: 1. More effective to prevent clinical worsening, defined as the occurrence of at least one of the following events, whichever comes first, during hospital stay: 1. Death 2. Acute Myocardial Infarction \[AMI\] 3. Objectively confirmed, symptomatic arterial or venous thromboembolism \[TE\] 4. Need for either non-invasive - Continuous Positive Airway Pressure (Cpap) or Non-Invasive Ventilation (NIV) - or invasive mechanical ventilation for patients who are in standard oxygen therapy by delivery interfaces at randomisation 5. Need for invasive mechanical ventilation for patients who are in non-invasive mechanical ventilation at randomisation 2. Similar in terms of major bleeding risk during hospital stay

Timeline

Start

2020-06

Primary completion

2021-06

Completion

2021-06

Publications

• Background Wu C, Chen X, Cai Y, Xia J, Zhou X, Xu S, Huang H, Zhang L, Zhou X, Du C, Zhang Y, Song J, Wang S, Chao Y, Yang Z, Xu J, Zhou X, Chen D, Xiong W, Xu L, Zhou F, Jiang J, Bai C, Zheng J, Song Y. Risk Factors Associated With Acute Respiratory Distress Syndrome and Death in Patients With Coronavirus Disease 2019 Pneumonia in Wuhan, China. JAMA Intern Med. 2020 Jul 1;180(7):934-943. doi: 10.1001/jamainternmed.2020.0994.
• Background Leisman DE, Deutschman CS, Legrand M. Facing COVID-19 in the ICU: vascular dysfunction, thrombosis, and dysregulated inflammation. Intensive Care Med. 2020 Jun;46(6):1105-1108. doi: 10.1007/s00134-020-06059-6. Epub 2020 Apr 28. No abstract available.
• Background Tang N, Bai H, Chen X, Gong J, Li D, Sun Z. Anticoagulant treatment is associated with decreased mortality in severe coronavirus disease 2019 patients with coagulopathy. J Thromb Haemost. 2020 May;18(5):1094-1099. doi: 10.1111/jth.14817. Epub 2020 Apr 27.
• Background Tang N, Li D, Wang X, Sun Z. Abnormal coagulation parameters are associated with poor prognosis in patients with novel coronavirus pneumonia. J Thromb Haemost. 2020 Apr;18(4):844-847. doi: 10.1111/jth.14768. Epub 2020 Mar 13.
• Background Marietta M, Ageno W, Artoni A, De Candia E, Gresele P, Marchetti M, Marcucci R, Tripodi A. COVID-19 and haemostasis: a position paper from Italian Society on Thrombosis and Haemostasis (SISET). Blood Transfus. 2020 May;18(3):167-169. doi: 10.2450/2020.0083-20. Epub 2020 Apr 8. No abstract available.
• Background Thachil J, Tang N, Gando S, Falanga A, Cattaneo M, Levi M, Clark C, Iba T. ISTH interim guidance on recognition and management of coagulopathy in COVID-19. J Thromb Haemost. 2020 May;18(5):1023-1026. doi: 10.1111/jth.14810. Epub 2020 Apr 27. No abstract available.
• Background Thachil J. The versatile heparin in COVID-19. J Thromb Haemost. 2020 May;18(5):1020-1022. doi: 10.1111/jth.14821. Epub 2020 Apr 27. No abstract available.
• Wu MA, Del GIovane C, Colombo R, Dolci G, Arquati M, Vicini R, Russo U, Ruggiero D, Coluccio V, Taino A, Franceschini E, Facchinetti P, Mighali P, Trombetta L, Tonelli F, Gabiati C, Cogliati C, D'Amico R, Marietta M; ETHYCO Study Group. Low-molecular-weight heparin for the prevention of clinical worsening in severe non-critically ill COVID-19 patients: a joint analysis of two randomized controlled trials. Intern Emerg Med. 2024 Jan;19(1):71-79. doi: 10.1007/s11739-023-03439-w. Epub 2023 Oct 4.
• Flumignan RL, Civile VT, Tinoco JDS, Pascoal PI, Areias LL, Matar CF, Tendal B, Trevisani VF, Atallah AN, Nakano LC. Anticoagulants for people hospitalised with COVID-19: a rapid review. Cochrane Database Syst Rev. 2022 Mar 4;3(3):CD013739. doi: 10.1002/14651858.CD013739.pub2.
• Flumignan RL, Tinoco JDS, Pascoal PI, Areias LL, Cossi MS, Fernandes MI, Costa IK, Souza L, Matar CF, Tendal B, Trevisani VF, Atallah AN, Nakano LC. Prophylactic anticoagulants for people hospitalised with COVID-19. Cochrane Database Syst Rev. 2020 Oct 2;10(10):CD013739. doi: 10.1002/14651858.CD013739.

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