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All Studies   All Outcomes    Recent:   
0 0.5 1 1.5 2+ Mortality 1% Improvement Relative Risk Ventilation -8% ICU admission 0% Conv. Plasma  DAWn-plasma  LATE TREATMENT  RCT Is late treatment with convalescent plasma beneficial for COVID-19? RCT 483 patients in Belgium (May 2020 - January 2021) No significant difference in outcomes seen c19early.org Devos et al., European Respiratory J., Aug 2021 Favors conv. plasma Favors control

Early high antibody titre convalescent plasma for hospitalised COVID-19 patients: DAWn-plasma

Devos et al., European Respiratory Journal, doi:10.1183/13993003.01724-2021, DAWn-plasma, NCT04429854
Aug 2021  
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RCT 489 hospitalized COVID-19 patients in Belgium, showing no significant difference in outcomes with convalescent plasma.
risk of death, 1.0% lower, HR 0.99, p = 0.98, treatment 320, control 163.
risk of mechanical ventilation, 8.0% higher, HR 1.08, p = 0.78, treatment 320, control 163.
risk of ICU admission, no change, HR 1.00, p = 1.00, treatment 320, control 163.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Devos et al., 26 Aug 2021, Randomized Controlled Trial, Belgium, peer-reviewed, 26 authors, study period 2 May, 2020 - 26 January, 2021, average treatment delay 7.0 days, trial NCT04429854 (history) (DAWn-plasma). Contact: geert.meyfroidt@uzleuven.be.
This PaperConv. PlasmaAll
Early high antibody titre convalescent plasma for hospitalised COVID-19 patients: DAWn-plasma
Timothy Devos, Quentin Van Thillo, Veerle Compernolle, Tomé Najdovski, Marta Romano, Nicolas Dauby, Laurent Jadot, Mathias Leys, Evelyne Maillart, Sarah Loof, Lucie Seyler, Martial Moonen, Michel Moutschen, Niels Van Regenmortel, Kevin K Ariën, Cyril Barbezange, Albrecht Betrains, Mutien Garigliany, Matthias M Engelen, Iwein Gyselinck, Piet Maes, Alexander Schauwvlieghe, Laurens Liesenborghs, Ann Belmans, Peter Verhamme, Geert Meyfroidt
European Respiratory Journal, doi:10.1183/13993003.01724-2021
Early transfusion of 4 units of high neutralising antibody titre convalescent plasma in hospitalised COVID-19 patients does not reduce mortality or the need for mechanical ventilation https://bit.ly/ 3fiRY2I
References
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Betrains, Godinas, Woei-A-Jin, Convalescent plasma treatment of persistent severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection in patients with lymphoma with impaired humoral immunity and lack of neutralising antibodies, Br J Haematol
Devos, Geukens, Schauwvlieghe, A randomized, multicentre, open-label phase II proof-of-concept trial investigating the clinical efficacy and safety of the addition of convalescent plasma to the standard of care in patients hospitalized with COVID-19: the Donated Antibodies Working against nCoV (DAWn-Plasma) trial, Trials
Gharbharan, Jordans, Geurtsvankessel, Effects of potent neutralizing antibodies from convalescent plasma in patients hospitalized for severe SARS-CoV-2 infection, Nat Commun
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O'donnell, Grinsztejn, Cummings, A randomized double-blind controlled trial of convalescent plasma in adults with severe COVID-19, J Clin Invest
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Late treatment
is less effective
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