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Treatment of severe COVID-19 patients with either low- or high-volume of convalescent plasma versus standard of care: A multicenter Bayesian randomized open-label clinical trial (COOP-COVID-19-MCTI)

Song et al., The Lancet Regional Health - Americas, doi:10.1016/j.lana.2022.100216, COOP-COVID-19-MCTI, NCT04415086
Jun 2022  
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Mortality -52% Improvement Relative Risk Conv. Plasma  COOP-COVID-19-MCTI  LATE TREATMENT  RCT Is late treatment with convalescent plasma beneficial for COVID-19? RCT 129 patients in Brazil (June - November 2020) Higher mortality with convalescent plasma (not stat. sig., p=0.37) c19early.org Song et al., The Lancet Regional Healt.., Jun 2022 Favorsconv. plasma Favorscontrol 0 0.5 1 1.5 2+
RCT 129 severe COVID-19 patients in Brazil, showing no significant difference in outcomes with convalescent plasma.
risk of death, 51.7% higher, RR 1.52, p = 0.37, treatment 22 of 87 (25.3%), control 7 of 42 (16.7%).
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Song et al., 30 Jun 2022, Randomized Controlled Trial, Brazil, peer-reviewed, median age 61.0, 20 authors, study period 2 June, 2020 - 18 November, 2020, average treatment delay 8.0 days, trial NCT04415086 (history) (COOP-COVID-19-MCTI). Contact: esper.kallas@usp.br.
This PaperConv. PlasmaAll
Treatment of severe COVID-19 patients with either low- or high-volume of convalescent plasma versus standard of care: A multicenter Bayesian randomized open-label clinical trial (COOP-COVID-19-MCTI)
Alice T W Song, Vanderson Rocha, Alfredo Mendrone-Júnior, Rodrigo T Calado, Gil C De Santis, Bruno D Benites, Carolina Costa-Lima, Taiani Vargas, Leonardo S Marques, Juliana C Fernandes, Felipe C Breda, Silvano Wendel, Roberta Fachini, Luiz V Rizzo, José Mauro Kutner, Vivian I Avelino-Silva, Rafael R G Machado, Edison L Durigon, Sylvie Chevret, Esper G Kallas
The Lancet Regional Health - Americas, doi:10.1016/j.lana.2022.100216
Background Administration of convalescent plasma may serve as an adjunct to supportive treatment to prevent COVID-19 progression and death. We aimed to evaluate the efficacy and safety of 2 volumes of intravenous convalescent plasma (CP) with high antibody titers for the treatment of severe cases of COVID-19. Methods We conducted a Bayesian, randomized, open-label, multicenter, controlled clinical trial in 7 Brazilian hospitals. Adults admitted to hospital with positive RT-PCR for SARS-CoV2, within 10 days of the symptom onset, were eligible. Patients were randomly assigned (1:1:1) to receive standard of care (SoC) alone, or in combination with 200 mL (150−300 mL) of CP (Low-volume), or 400 mL (300−600 mL) of CP (High-volume); infusion had to be performed within 24 h of randomization. Randomization was centralized, stratified by center. The primary outcome was the time until clinical improvement up to day 28, measured by the WHO ten-point scale, assessed in the intention-to-treat population. Interim and terminal analyses were performed in a Bayesian framework. Trial registered at ClinicalTrials.gov: NCT04415086.
TV, LSM, JCF, CSL, and FCB led the implementation of the study. SC did the statistical plan and analysis and SC, ATWS, VIAS, NBC, and DGA have verified the underlying data. RRGM, ELD, CPS, RM, DBA, CSL, and EDC generated laboratory data. ATWS, VR, SC, VIAS, and EGK drafted the report. All other authors contributed to the implementation and data collection. All authors reviewed and approved the final report. All authors had full access to all the data in the study and had final responsibility for the decision to submit for publication. Supplementary materials Supplementary material associated with this article can be found in the online version at doi:10.1016/j. lana.2022.100216.
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A Bayesian re-analysis of ' 'the RECOVERY randomized controlled trial', 'volume': '109', 'author': 'Hamilton', 'year': '2021', 'journal-title': 'Int J Infect Dis'}, { 'key': '10.1016/j.lana.2022.100216_bib0033', 'doi-asserted-by': 'crossref', 'DOI': '10.1172/JCI152740', 'article-title': 'A multicenter randomized open-label clinical trial for convalescent ' 'plasma in patients hospitalized with COVID-19 pneumonia', 'volume': '131', 'author': 'Avendaño-Solá', 'year': '2021', 'journal-title': 'J Clin Invest'}, { 'key': '10.1016/j.lana.2022.100216_bib0034', 'doi-asserted-by': 'crossref', 'DOI': '10.1172/JCI155114', 'article-title': 'A randomized controlled study of convalescent plasma for individuals ' 'hospitalized with COVID-19 pneumonia', 'volume': '131', 'author': 'Bar', 'year': '2021', 'journal-title': 'J Clin Invest'}, { 'key': '10.1016/j.lana.2022.100216_bib0035', 'doi-asserted-by': 'crossref', 'first-page': '4864', 'DOI': '10.1038/s41467-021-25113-5', 'article-title': 'Mortality in individuals treated with COVID-19 convalescent plasma ' 'varies with the geographic provenance of donors', 'volume': '12', 'author': 'Kunze', 'year': '2021', 'journal-title': 'Nat Commun'}, { 'key': '10.1016/j.lana.2022.100216_bib0036', 'doi-asserted-by': 'crossref', 'unstructured': 'Horby PW, Mafham M, RECOVERY Collaborative Group, Casirivimab and ' 'imdevimab in patients admitted to hospital with COVID-19 (RECOVERY): a ' 'randomised, controlled, open-label, platform trial. 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Late treatment
is less effective
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