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All Studies   All Outcomes    Recent:   
0 0.5 1 1.5 2+ Mortality -1% Improvement Relative Risk Ventilation 67% Progression 14% Progression (b) 42% Hospitalization 39% Hospitalization time -50% Recovery -1% Recovery time -8% Conv. Plasma  CoV-Early  EARLY TREATMENT  DB RCT Is early treatment with convalescent plasma beneficial for COVID-19? Double-blind RCT 416 patients in Netherlands (Nov 2020 - Jul 2021) Lower progression (p=0.42) and hospitalization (p=0.22), not sig. c19early.org Gharbharan et al., Clinical Microbiolo.., Aug 2022 Favors conv. plasma Favors control

Outpatient convalescent plasma therapy for high-risk patients with early COVID-19. A randomized placebo-controlled trial

Gharbharan et al., Clinical Microbiology and Infection, doi:10.1016/j.cmi.2022.08.005, CoV-Early, NCT04589949
Aug 2022  
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RCT 416 outpatients in the Netherlands, showing no significant difference with convalesent plasma treatment. Hospitalization was lower, and improved results were seen with ≤5 days of symptoms, without statistical significance.
risk of death, 1.0% higher, RR 1.01, p = 1.00, treatment 1 of 207 (0.5%), control 1 of 209 (0.5%), day 28.
risk of mechanical ventilation, 66.6% lower, RR 0.33, p = 1.00, treatment 0 of 207 (0.0%), control 1 of 209 (0.5%), NNT 209, relative risk is not 0 because of continuity correction due to zero events (with reciprocal of the contrasting arm), day 28.
risk of progression, 14.0% lower, OR 0.86, p = 0.42, treatment 207, control 209, adjusted per study, improved severity score, RR approximated with OR.
risk of progression, 42.0% lower, OR 0.58, p = 0.06, treatment 123, control 103, adjusted per study, improved severity score, ≤5 days, RR approximated with OR.
risk of hospitalization, 39.0% lower, HR 0.61, p = 0.22, treatment 10 of 207 (4.8%), control 18 of 209 (8.6%), NNT 26, adjusted per study, day 28.
hospitalization time, 50.0% higher, relative time 1.50, p = 0.56, treatment 207, control 209.
risk of no recovery, 1.0% higher, RR 1.01, p = 0.92, treatment 137 of 207 (66.2%), control 137 of 209 (65.6%), continued COVID-19 symptoms, day 27.
recovery time, 8.3% higher, relative time 1.08, p = 0.99, treatment 207, control 209.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Gharbharan et al., 23 Aug 2022, Double Blind Randomized Controlled Trial, placebo-controlled, Netherlands, peer-reviewed, 59 authors, study period November 2020 - July 2021, average treatment delay 5.0 days, trial NCT04589949 (history) (CoV-Early). Contact: b.rijnders@erasmusmc.nl, a.gharbharan@erasmusmc.nl.
This PaperConv. PlasmaAll
Outpatient convalescent plasma therapy for high-risk patients with early COVID-19: a randomized placebo-controlled trial
Arvind Gharbharan, Carlijn Jordans, Lisa Zwaginga, Grigorios Papageorgiou, Nan Van Geloven, Peter Van Wijngaarden, Jan Den Hollander, Faiz Karim, Elena Van Leeuwen-Segarceanu, Robert Soetekouw, Jolanda Lammers, Douwe Postma, Linda Kampschreur, Geert Groeneveld, Francis Swaneveld, C Ellen Van Der Schoot, Hannelore Götz, Bart Haagmans, Marion Koopmans, Susanne Bogers, Corine Geurtsvankessel, Jaap Jan Zwaginga, Casper Rokx, Bart Rijnders
Clinical Microbiology and Infection, doi:10.1016/j.cmi.2022.08.005
This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.
Conflicts of interest: We declare no conflicts of interest. Acknowledgments: The
References
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Piechotta, Iannizzi, Chai, Valk, Kimber et al., Convalescent plasma or hyperimmune immunoglobulin for people with COVID-19: a living systematic review, Cochrane Database of Systematic Reviews
Rijnders, Huygens, Mitjà, Evidence-based dosing of convalescent plasma for COVID-19 in future trials, Clinical Microbiology and Infection
Rockwood, Theou, Using the Clinical Frailty Scale in Allocating Scarce Health Care Resources, Can Geriatr J
Sullivan, Gebo, Shoham, Bloch, Lau et al., Early Outpatient Treatment for Covid-19 with Convalescent Plasma, New England Journal of Medicine
Takashita, Kinoshita, Yamayoshi, Sakai-Tagawa, Fujisaki et al., Efficacy of Antiviral Agents against the SARS-CoV-2 Omicron Subvariant BA.2, New England Journal of Medicine
Vanblargan, Errico, Halfmann, Zost, Crowe et al., An infectious SARS-CoV-2 B.1.1.529 Omicron virus escapes neutralization by therapeutic monoclonal antibodies, Nature Medicine
Weinreich, Sivapalasingam, Norton, Ali, Gao et al., None
Williamson, Walker, Bhaskaran, Bacon, Bates et al., Factors associated with COVID-19-related death using OpenSAFELY, Nature
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