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1. Association between convalescent plasma treatment and mortality in COVID-19: a collaborative systematic review and meta-analysis of randomized clinical trials

Author

Axfors, Cathrine, primary, Janiaud, Perrine, additional, Schmitt, Andreas M., additional, van’t Hooft, Janneke, additional, Smith, Emily R., additional, Haber, Noah A., additional, Abayomi, Akin, additional, Abduljalil, Manal, additional, Abdulrahman, Abdulkarim, additional, Acosta-Ampudia, Yeny, additional, Aguilar-Guisado, Manuela, additional, Al-Beidh, Farah, additional, Alejandria, Marissa M., additional, Alfonso, Rachelle N., additional, Ali, Mohammad, additional, AlQahtani, Manaf, additional, AlZamrooni, Alaa, additional, Anaya, Juan-Manuel, additional, Ang, Mark Angelo C., additional, Aomar, Ismael F., additional, Argumanis, Luis E., additional, Averyanov, Alexander, additional, Baklaushev, Vladimir P., additional, Balionis, Olga, additional, Benfield, Thomas, additional, Berry, Scott, additional, Birocco, Nadia, additional, Bonifacio, Lynn B., additional, Bowen, Asha C., additional, Bown, Abbie, additional, Cabello-Gutierrez, Carlos, additional, Camacho, Bernardo, additional, Camacho-Ortiz, Adrian, additional, Campbell-Lee, Sally, additional, Cao, Damon H., additional, Cardesa, Ana, additional, Carnate, Jose M., additional, Castillo, German Jr. J., additional, Cavallo, Rossana, additional, Chowdhury, Fazle R., additional, Chowdhury, Forhad U. H., additional, Ciccone, Giovannino, additional, Cingolani, Antonella, additional, Climacosa, Fresthel Monica M., additional, Compernolle, Veerle, additional, Cortez, Carlo Francisco N., additional, Costa Neto, Abel, additional, D’Antico, Sergio, additional, Daly, James, additional, Danielle, Franca, additional, Davis, Joshua S., additional, De Rosa, Francesco Giuseppe, additional, Denholm, Justin T., additional, Denkinger, Claudia M., additional, Desmecht, Daniel, additional, Díaz-Coronado, Juan C., additional, Díaz Ponce-Medrano, Juan A., additional, Donneau, Anne-Françoise, additional, Dumagay, Teresita E., additional, Dunachie, Susanna, additional, Dungog, Cecile C., additional, Erinoso, Olufemi, additional, Escasa, Ivy Mae S., additional, Estcourt, Lise J., additional, Evans, Amy, additional, Evasan, Agnes L. M., additional, Fareli, Christian J., additional, Fernandez-Sanchez, Veronica, additional, Galassi, Claudia, additional, Gallo, Juan E., additional, Garcia, Patricia J., additional, Garcia, Patricia L., additional, Garcia, Jesus A., additional, Garigliany, Mutien, additional, Garza-Gonzalez, Elvira, additional, Gauiran, Deonne Thaddeus V., additional, Gaviria García, Paula A., additional, Giron-Gonzalez, Jose-Antonio, additional, Gómez-Almaguer, David, additional, Gordon, Anthony C., additional, Gothot, André, additional, Grass Guaqueta, Jeser Santiago, additional, Green, Cameron, additional, Grimaldi, David, additional, Hammond, Naomi E., additional, Harvala, Heli, additional, Heralde, Francisco M., additional, Herrick, Jesica, additional, Higgins, Alisa M., additional, Hills, Thomas E., additional, Hines, Jennifer, additional, Holm, Karin, additional, Hoque, Ashraful, additional, Hoste, Eric, additional, Ignacio, Jose M., additional, Ivanov, Alexander V., additional, Janssen, Maike, additional, Jennings, Jeffrey H., additional, Jha, Vivekanand, additional, King, Ruby Anne N., additional, Kjeldsen-Kragh, Jens, additional, Klenerman, Paul, additional, Kotecha, Aditya, additional, Krapp, Fiorella, additional, Labanca, Luciana, additional, Laing, Emma, additional, Landin-Olsson, Mona, additional, Laterre, Pierre-François, additional, Lim, Lyn-Li, additional, Lim, Jodor, additional, Ljungquist, Oskar, additional, Llaca-Díaz, Jorge M., additional, López-Robles, Concepción, additional, López-Cárdenas, Salvador, additional, Lopez-Plaza, Ileana, additional, Lucero, Josephine Anne C., additional, Lundgren, Maria, additional, Macías, Juan, additional, Maganito, Sandy C., additional, Malundo, Anna Flor G., additional, Manrique, Rubén D., additional, Manzini, Paola M., additional, Marcos, Miguel, additional, Marquez, Ignacio, additional, Martínez-Marcos, Francisco Javier, additional, Mata, Ana M., additional, McArthur, Colin J., additional, McQuilten, Zoe K., additional, McVerry, Bryan J., additional, Menon, David K., additional, Meyfroidt, Geert, additional, Mirasol, Ma. Angelina L., additional, Misset, Benoît, additional, Molton, James S., additional, Mondragon, Alric V., additional, Monsalve, Diana M., additional, Moradi Choghakabodi, Parastoo, additional, Morpeth, Susan C., additional, Mouncey, Paul R., additional, Moutschen, Michel, additional, Müller-Tidow, Carsten, additional, Murphy, Erin, additional, Najdovski, Tome, additional, Nichol, Alistair D., additional, Nielsen, Henrik, additional, Novak, Richard M., additional, O’Sullivan, Matthew V. N., additional, Olalla, Julian, additional, Osibogun, Akin, additional, Osikomaiya, Bodunrin, additional, Oyonarte, Salvador, additional, Pardo-Oviedo, Juan M., additional, Patel, Mahesh C., additional, Paterson, David L., additional, Peña-Perez, Carlos A., additional, Perez-Calatayud, Angel A., additional, Pérez-Alba, Eduardo, additional, Perkina, Anastasia, additional, Perry, Naomi, additional, Pouladzadeh, Mandana, additional, Poyato, Inmaculada, additional, Price, David J., additional, Quero, Anne Kristine H., additional, Rahman, Md. M., additional, Rahman, Md. S., additional, Ramesh, Mayur, additional, Ramírez-Santana, Carolina, additional, Rasmussen, Magnus, additional, Rees, Megan A., additional, Rego, Eduardo, additional, Roberts, Jason A., additional, Roberts, David J., additional, Rodríguez, Yhojan, additional, Rodríguez-Baño, Jesús, additional, Rogers, Benjamin A., additional, Rojas, Manuel, additional, Romero, Alberto, additional, Rowan, Kathryn M., additional, Saccona, Fabio, additional, Safdarian, Mehdi, additional, Santos, Maria Clariza M., additional, Sasadeusz, Joe, additional, Scozzari, Gitana, additional, Shankar-Hari, Manu, additional, Sharma, Gorav, additional, Snelling, Thomas, additional, Soto, Alonso, additional, Tagayuna, Pedrito Y., additional, Tang, Amy, additional, Tatem, Geneva, additional, Teofili, Luciana, additional, Tong, Steven Y. C., additional, Turgeon, Alexis F., additional, Veloso, Januario D., additional, Venkatesh, Balasubramanian, additional, Ventura-Enriquez, Yanet, additional, Webb, Steve A., additional, Wiese, Lothar, additional, Wikén, Christian, additional, Wood, Erica M., additional, Yusubalieva, Gaukhar M., additional, Zacharowski, Kai, additional, Zarychanski, Ryan, additional, Khanna, Nina, additional, Moher, David, additional, Goodman, Steven N., additional, Ioannidis, John P. A., additional, and Hemkens, Lars G., additional

Published
2021
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2. Association between convalescent plasma treatment and mortality in COVID-19: a collaborative systematic review and meta-analysis of randomized clinical trials

Author

Axfors, Cathrine, Janiaud, Perrine, Schmitt, Andreas M, Van't Hooft, Janneke, Smith, Emily R, Haber, Noah A, Abayomi, Akin, Abduljalil, Manal, Abdulrahman, Abdulkarim, Acosta-Ampudia, Yeny, Aguilar-Guisado, Manuela, Al-Beidh, Farah, Alejandria, Marissa M, Alfonso, Rachelle N, Ali, Mohammad, AlQahtani, Manaf, AlZamrooni, Alaa, Anaya, Juan-Manuel, Ang, Mark Angelo C, Aomar, Ismael F, Argumanis, Luis E, Averyanov, Alexander, Baklaushev, Vladimir P, Balionis, Olga, Benfield, Thomas, Berry, Scott, Birocco, Nadia, Bonifacio, Lynn B, Bowen, Asha C, Bown, Abbie, Cabello-Gutierrez, Carlos, Camacho, Bernardo, Camacho-Ortiz, Adrian, Campbell-Lee, Sally, Cao, Damon H, Cardesa, Ana, Carnate, Jose M, Castillo, German Jr J, Cavallo, Rossana, Chowdhury, Fazle R, Chowdhury, Forhad UH, Ciccone, Giovannino, Cingolani, Antonella, Climacosa, Fresthel Monica M, Compernolle, Veerle, Cortez, Carlo Francisco N, Costa Neto, Abel, D'Antico, Sergio, Daly, James, Danielle, Franca, Davis, Joshua S, De Rosa, Francesco Giuseppe, Denholm, Justin T, Denkinger, Claudia M, Desmecht, Daniel, Díaz-Coronado, Juan C, Díaz Ponce-Medrano, Juan A, Donneau, Anne-Françoise, Dumagay, Teresita E, Dunachie, Susanna, Dungog, Cecile C, Erinoso, Olufemi, Escasa, Ivy Mae S, Estcourt, Lise J, Evans, Amy, Evasan, Agnes LM, Fareli, Christian J, Fernandez-Sanchez, Veronica, Galassi, Claudia, Gallo, Juan E, Garcia, Patricia J, Garcia, Patricia L, Garcia, Jesus A, Garigliany, Mutien, Garza-Gonzalez, Elvira, Gauiran, Deonne Thaddeus V, Gaviria García, Paula A, Giron-Gonzalez, Jose-Antonio, Gómez-Almaguer, David, Gordon, Anthony C, Gothot, André, Grass Guaqueta, Jeser Santiago, Green, Cameron, Grimaldi, David, Hammond, Naomi E, Harvala, Heli, Heralde, Francisco M, Herrick, Jesica, Higgins, Alisa M, Hills, Thomas E, Hines, Jennifer, Holm, Karin, Hoque, Ashraful, Hoste, Eric, Ignacio, Jose M, Ivanov, Alexander V, Janssen, Maike, Jennings, Jeffrey H, Jha, Vivekanand, King, Ruby Anne N, Kjeldsen-Kragh, Jens, Klenerman, Paul, Kotecha, Aditya, Krapp, Fiorella, Labanca, Luciana, Laing, Emma, Landin-Olsson, Mona, Laterre, Pierre-François, Lim, Lyn-Li, Lim, Jodor, Ljungquist, Oskar, Llaca-Díaz, Jorge M, López-Robles, Concepción, López-Cárdenas, Salvador, Lopez-Plaza, Ileana, Lucero, Josephine Anne C, Lundgren, Maria, Macías, Juan, Maganito, Sandy C, Malundo, Anna Flor G, Manrique, Rubén D, Manzini, Paola M, Marcos, Miguel, Marquez, Ignacio, Martínez-Marcos, Francisco Javier, Mata, Ana M, McArthur, Colin J, McQuilten, Zoe K, McVerry, Bryan J, Menon, David K, Meyfroidt, Geert, Mirasol, Ma Angelina L, Misset, Benoît, Molton, James S, Mondragon, Alric V, Monsalve, Diana M, Moradi Choghakabodi, Parastoo, Morpeth, Susan C, Mouncey, Paul R, Moutschen, Michel, Müller-Tidow, Carsten, Murphy, Erin, Najdovski, Tome, Nichol, Alistair D, Nielsen, Henrik, Novak, Richard M, O'Sullivan, Matthew VN, Olalla, Julian, Osibogun, Akin, Osikomaiya, Bodunrin, Oyonarte, Salvador, Pardo-Oviedo, Juan M, Patel, Mahesh C, Paterson, David L, Peña-Perez, Carlos A, Perez-Calatayud, Angel A, Pérez-Alba, Eduardo, Perkina, Anastasia, Perry, Naomi, Pouladzadeh, Mandana, Poyato, Inmaculada, Price, David J, Quero, Anne Kristine H, Rahman, Md M, Rahman, Md S, Ramesh, Mayur, Ramírez-Santana, Carolina, Rasmussen, Magnus, Rees, Megan A, Rego, Eduardo, Roberts, Jason A, Roberts, David J, Rodríguez, Yhojan, Rodríguez-Baño, Jesús, Rogers, Benjamin A, Rojas, Manuel, Romero, Alberto, Rowan, Kathryn M, Saccona, Fabio, Safdarian, Mehdi, Santos, Maria Clariza M, Sasadeusz, Joe, Scozzari, Gitana, Shankar-Hari, Manu, Sharma, Gorav, Snelling, Thomas, Soto, Alonso, Tagayuna, Pedrito Y, Tang, Amy, Tatem, Geneva, Teofili, Luciana, Tong, Steven YC, Turgeon, Alexis F, Veloso, Januario D, Venkatesh, Balasubramanian, Ventura-Enriquez, Yanet, Webb, Steve A, Wiese, Lothar, Wikén, Christian, Wood, Erica M, Yusubalieva, Gaukhar M, Zacharowski, Kai, Zarychanski, Ryan, Khanna, Nina, Moher, David, Goodman, Steven N, Ioannidis, John PA, and Hemkens, Lars G

Subjects
Meta-analysis, Convalescent plasma, Treatment Outcome, SARS-CoV-2, Immunization, Passive, COVID-19, Humans, COVID-19 Serotherapy, 3. Good health, Randomized Controlled Trials as Topic
Abstract

Funder: laura and john arnold foundation, BACKGROUND: Convalescent plasma has been widely used to treat COVID-19 and is under investigation in numerous randomized clinical trials, but results are publicly available only for a small number of trials. The objective of this study was to assess the benefits of convalescent plasma treatment compared to placebo or no treatment and all-cause mortality in patients with COVID-19, using data from all available randomized clinical trials, including unpublished and ongoing trials (Open Science Framework, https://doi.org/10.17605/OSF.IO/GEHFX ). METHODS: In this collaborative systematic review and meta-analysis, clinical trial registries (ClinicalTrials.gov, WHO International Clinical Trials Registry Platform), the Cochrane COVID-19 register, the LOVE database, and PubMed were searched until April 8, 2021. Investigators of trials registered by March 1, 2021, without published results were contacted via email. Eligible were ongoing, discontinued and completed randomized clinical trials that compared convalescent plasma with placebo or no treatment in COVID-19 patients, regardless of setting or treatment schedule. Aggregated mortality data were extracted from publications or provided by investigators of unpublished trials and combined using the Hartung-Knapp-Sidik-Jonkman random effects model. We investigated the contribution of unpublished trials to the overall evidence. RESULTS: A total of 16,477 patients were included in 33 trials (20 unpublished with 3190 patients, 13 published with 13,287 patients). 32 trials enrolled only hospitalized patients (including 3 with only intensive care unit patients). Risk of bias was low for 29/33 trials. Of 8495 patients who received convalescent plasma, 1997 died (23%), and of 7982 control patients, 1952 died (24%). The combined risk ratio for all-cause mortality was 0.97 (95% confidence interval: 0.92; 1.02) with between-study heterogeneity not beyond chance (I2 = 0%). The RECOVERY trial had 69.8% and the unpublished evidence 25.3% of the weight in the meta-analysis. CONCLUSIONS: Convalescent plasma treatment of patients with COVID-19 did not reduce all-cause mortality. These results provide strong evidence that convalescent plasma treatment for patients with COVID-19 should not be used outside of randomized trials. Evidence synthesis from collaborations among trial investigators can inform both evidence generation and evidence application in patient care.

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