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1. Author Correction: Prospective individual patient data meta-analysis of two randomized trials on convalescent plasma for COVID-19 outpatients

Author

Millat-Martinez, Pere, Gharbharan, Arvind, Alemany, Andrea, Rokx, Casper, Geurtsvankessel, Corine, Papageorgiou, Grigorios, van Geloven, Nan, Jordans, Carlijn, Groeneveld, Geert, Swaneveld, Francis, van der Schoot, Ellen, Corbacho-Monné, Marc, Ouchi, Dan, Piccolo Ferreira, Francini, Malchair, Pierre, Videla, Sebastian, García García, Vanesa, Ruiz-Comellas, Anna, Ramírez-Morros, Anna, Rodriguez Codina, Joana, Amado Simon, Rosa, Grifols, Joan-Ramon, Blanco, Julian, Blanco, Ignacio, Ara, Jordi, Bassat, Quique, Clotet, Bonaventura, Baro, Bàrbara, Troxel, Andrea, Zwaginga, Jaap Jan, Mitjà, Oriol, and Rijnders, Bart J. A.

Published
2024
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2. Subcutaneous anti-COVID-19 hyperimmune immunoglobulin for prevention of disease in asymptomatic individuals with SARS-CoV-2 infection: a double-blind, placebo-controlled, randomised clinical trial

Author

Aguilar-Uroz, Adrià, Rosell-García-Ufano, Adrià, Escudero Planas, Adrián, Baelo, Aida, Villahoz Martín, Ainhoa, Moreno López, Alberto, Roldan Ruiz, Alberto, Santana Briongos, Alberto, Tejera Bodas, Alberto, Alonso-Vallés, Alejandro, Fletes-Pérez, Alejandro, Hueso-Mor, Alejandro, Boluda, Alex, Santamaria, Alex, Diestro, Alicia Santos, Revuelta-Álvarez, Almudena, Moreno Moreno, Álvaro, Ortega de Felipe, Ana, Chen-Ye, Ana, Blázquez Valerón, Ana, Rodríguez Pérez, Ana Belén, Tristán Morgalo, Ana Laura, Fernández-Allende, Ana Luisa, Bagán-Trejo, Andrea, Fernández Juan, Andrés, Zalve-Cano, Ángel, Mateo-Martínez, Anna, Galván, Antonio Valero, Egidos-Plaja, Antonio, Jorge, Ariadna, Fraile Torres, Arturo, Pareja Leal, Azahara Maria, Viader Castro, Bárbara, Fernandez Beato, Barbara, Naveira Menchen, Barbara, Martin Poyatos, Beatriz, García-Martínez, Beatriz, Rodrigo Testillano, Belén, Blanco Tejedor, Belen, López Pérez, Blanca, Mencía Hernanz, Blanca, González-Beiras, Camila, Batres, Carlos, Nuñez Garcia, Carmen, Merino-Rodríguez, Carmen, Rodríguez-Gilabert, Carolina, Bonilla Penedo, Celia, Casado Gomez, Christian, Gonzalez Perez, Claudia, Galindo-Tomás, Claudia, Peral Bolaños, Cristina, Blanco-Montes, Cristina, Lupu-Yakovleva, Cristina, Lopez Ruiz, Cristina, Perez Mayoral, Cristina, Fornes, Cristina, Garcia Corrochano, Cristobal, Gallardo Álvarez, Daniel, Navarro Sanz, Daniel, Sanz Barrio, David, Ramet Meseguer, Debora, Vera-Jurado, Edna Margarita, Perez Costa, Eduardo, Bustillos-Sebastian, Eilen Junet, Palomar Casado, Elena, Guerrero, Elena Dorrego, Medina Mateos, Elena, Aragón Gaspar, Elisa Rebeca, Herrero-Vila, Elisabeth, Paez Herrera, Enriqueta, Rojas Powel, Esmeralda, Robres Medialdea, Esther, Vall-Ribalta, Esther, Lopez Perez, Eva, Mihaela Fer, Felicia, Vazquez Ángeles, Fernanda, Tirado Bejarano, Fernando, Prats-Domenech, Ferran, Borràs Martí, Ferran, Ardila-Mejia, Gabriela, Costes, Gèlia, Gómez Arquero, Gema, Flores Mateo, Gemma, Pintos-Morell, Guillem, Mira-Centelles, Helena, Astola Requena, Ignacio, Ortega Martin, Ignacio, Leivas-Gutierrez, Iker, Escribano Valenciano, Irene, Muñoz Gomez, Irene, Ortega, Irina, Montserrat-Lloan, Isabel, Gamboa, Itziar, Rodríguez de Torres de Paul, Jacobo, Cahís, Jordi, Muñoz-Martinez, Jordi, Bermejo, Jorge Iglesias, Cejas López, Joselvis Virginia, Canudas, Josep, García Lucas, Juan Antonio, Martínez-Pino, Juan Carlos, Torres Martínez, Juana, Pujol-Corney, Judit, González Jiménez, Judith, Gurí, Júlia, Labella Martín, Julio, Garcia-Cano, Laia, Perez Plata, Lara Sonsoles, Muñoz Álvaro, Laura, Rodríguez Andrés, Laura, Vega Ruiz, Laura, Cuevas Valiente, Laura, Díaz Rodríguez, Laura, Puigros, Laura, Cristina Piciorang, Lavinia, Escudero, Leticia, Figueroa Caballero, Liliana, Ferrerfàbrega-Costals, Lluna, Costafreda-Hernández, Lucía, De-Paúl, Lucía, González Fernández-Medina, Luis, Moliner Prada, M<ce:sup loc='post">a</ce:sup> Carmen, Berriochoa Martínez de Pisón, M<ce:sup loc='post">a</ce:sup> Cristina, Blanco Blasco, Maria, Gil Jorge, Maria, Cortijo Caballero, María, Ubals, Maria, Gordillo, Maria, Guilloto López, Maria Alicia, Moreno Calvo, Maria Concepción, Gil García, María del Rosario, Dueñas Román, María Inmaculada, Gonzalez Sanchez, Maria Josefa, Nicolás Campoy, María Luisa, González Velayos, Maria Luz, Zori, Mario Mejías, Maqueda, Mario Oliva, Caño de la Cruz, Mario, Palau-Morral, Mariona, Martín-Muñoz, Marta, Cereceda Meca, Marta, Díaz Urbina, Marta, VerónicaPlazas, Martha, Vall-Mayans, Martí, Blasco, Martí, Jane Chu-Sifuentes, Mary, García de Villasladad Peñaranda, Miguel, Hernanz Sotoca, Miguel, Iglesias Gonzalez, Miguel, Labrador-Galván, Miguel Ángel, Rodrigo de Vivar Azcarate, Miguel, Gil-Fibla, Miquel, Formentí-Pallarés, Miquel, Esteve-Tugues, Mireia, Juanes Perez, Miriam, López Rubio, Miriam, Recuero Renales, Mirian, Hijós-Rullo, Mònica, Lleonart-Abadia, Montserrat, Finelli, Nadia, Rojas-Bertier, Naiara, Reyes-Calderón, Nataly, Casado Larrañaga, Nerea, Zurita Castrosin, Nerea Nuria, Álvarez-Nieto, Noélia, Leiva-Mora, Nuria, Tomillo-Martín, Olga, Belghazi, Omar, Buscà, Oriol, Mendoza Cediel, Pablo, Macedo, Pablo, Rodríguez Barroso, Patricia, Ruiz Álvarez, Patricia, López, Patricia Morales, Vara de Rey, Patricia Jimenez, Ginés, Paz Lozano, Bris Rodriguez, Pilar, Martínez-Alamillo, Pilar, Salmerón Martínez, Rafa, Botello Ariza, Raquel, Vaquero Mena, Raquel, González-Alonso, Raquel, Kaczmarczyk, Raul, Barnadas Vintró, Rita, Hontecillas Martínez, Rodrigo, Ribot-Rodríguez, Rosa, Escobar-Sánchez, Rosa, Montes Trinidad, Rosario Paloma, Martínez Quintana, Rubén, Arnay Arrogante, Ruben, Berjon Sanchez, Ruben, Picazo Navarro, Ruben, Bastos, Rubén, Martín Molinero, Samuel, Israel-Benchaya, Samuel Dan, Muñoz-Burguillo, Sandra, Rodríguez-Salvador, Sandra, Avila, Sara, Corral Gayubas, Sara, Nuñez Sánchez, Sergio, Torres Weber, Sofía, Encabo Lopez, Susana, Torices Rasines, Teresa, Sallas, Valentí, Curto-Vicente, Verónica, Gómez Hijosa, Verónica, Daimiel-Pedrote, Verónica, Gozalo, Verónica, Barrios López, Vicente, Castillo Montoya, Virginia Ivette, Espinoza Pérez, Yuri, CristinaBerriochoa Martínez de Pisón, María, Muñoz Castillo, David, Donato, Carlos, García García, Isabel, Alemany, Andrea, Millat-Martinez, Pere, Corbacho-Monné, Marc, Suñer, Clara, Galvan-Casas, Cristina, Carrera, Caty, Ouchi, Dan, Prat, Núria, Ara, Jordi, Nadal, Nuria, Riel, Ricard, Funollet, Blanca, Ojeda-Ciurana, Carmen, Balague, Lluis Esteve, Salvador-González, Betlem, Arcarons, Anna Forcada, Vidal-Alaball, Josep, Del Cura-González, María Isabel, Barrientos, Ricardo Rodríguez, Ramos-Blanes, Rafel, Bou, Alberto Alum, Mondou, Elsa, Torres, Mireia, Campins, Neus, Sanz, Ana, Tang, Yonggiang, Rodriguez-Arias, Miquel Àngel, Bassat, Quique, Clotet, Bonaventura, and Mitjà, Oriol

Published
2023
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3. Prospective individual patient data meta-analysis of two randomized trials on convalescent plasma for COVID-19 outpatients

Author

Millat-Martinez, Pere, Gharbharan, Arvind, Alemany, Andrea, Rokx, Casper, Geurtsvankessel, Corine, Papageorgiou, Grigorios, van Geloven, Nan, Jordans, Carlijn, Groeneveld, Geert, Swaneveld, Francis, van der Schoot, Ellen, Corbacho-Monné, Marc, Ouchi, Dan, Piccolo Ferreira, Francini, Malchair, Pierre, Videla, Sebastian, García García, Vanesa, Ruiz-Comellas, Anna, Ramírez-Morros, Anna, Rodriguez Codina, Joana, Amado Simon, Rosa, Grifols, Joan-Ramon, Blanco, Julian, Blanco, Ignacio, Ara, Jordi, Bassat, Quique, Clotet, Bonaventura, Baro, Bàrbara, Troxel, Andrea, Zwaginga, Jaap Jan, Mitjà, Oriol, and Rijnders, Bart J. A.

Published
2022
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4. High-titre methylene blue-treated convalescent plasma as an early treatment for outpatients with COVID-19: a randomised, placebo-controlled trial

Author

Ferrer, Susana, Gallardo, Mireia, Ubals, Maria, González-Beiras, Camila, Vall-Mayans, Martí, Suñer, Clara, Laporte-Villar, Clàudia, Nieto, Aroa, Comas-Leon, Xavier, Jiménez, Zahida, Ramírez-Viaplana, Ferran, Delgado-Capel, Maria, Díez Sánchez, Beatriz, Pons Barber, Maria, Gonzalez Ruiz, Cristian, Navarrete Gonzalez, Laura, González García, David, Vivero Larraza, Ainhoa, Carceles Peiró, Victor, Roquer López, Clàudia, Robert, Neus, Palet, Carles, Gudiol, Carlota, Casares Gonzalez, Pablo, Arcos Vila, Gemma, Flores Aguilera, Begoña, Rodríguez-Sevilla, Graciela, Dastis Arias, Macarena, Roca Font, Judit, Carrasco Matos, Katherine M., Saüch Valmaña, Glòria, Vidal Obradors, Carla, Tarres García, Silvia, Curriu Sabatès, Margarida, Nieto Rodríguez, Raquel, Línio, Rosa, Fornos, Míriam, Casamitjana, Natàlia, Alonso, Eva, Martínez, Núria, Maglio, Laura Analía, Comellas Fernandez, Laura, Garcia, Nadia, Hernández, Luis, González, Maria Isabel, Bravo, Anna, García, Yolanda, Sauleda Oliveras, Silvia, Vertiz, Tatiana, Benavent, Sergio, Bianco, Andrea Sofia, Verdaguer, Joaquim, Briones Zambrano, Ney Nicanor, Viozquez Meya, Maria, Hernández, Águeda, Casaña Lopez, Cristina, Bordoy, Antoni E., González Soler, Victoria, Giménez, Montserrat, París, Alexa, Marfil, Silvia, Trinité, Benjamin, Grau, Eulàlia, Alemany, Andrea, Millat-Martinez, Pere, Corbacho-Monné, Marc, Malchair, Pierre, Ouchi, Dan, Ruiz-Comellas, Anna, Ramírez-Morros, Anna, Rodríguez Codina, Joana, Amado Simon, Rosa, Videla, Sebastian, Costes, Gèlia, Capdevila-Jáuregui, Mar, Torrano-Soler, Pamela, San José, Alba, Bonet Papell, Glòria, Puig, Jordi, Otero, Aurema, Ruibal Suarez, Jose Carlos, Zarauza Pellejero, Alvaro, Llopis Roca, Ferran, Rodriguez Cortez, Orlando, Garcia Garcia, Vanesa, Vidal-Alaball, Josep, Millan, Anna, Contreras, Enric, Grifols, Joan-Ramon, Ancochea, Àgueda, Galvan-Femenia, Ivan, Piccolo Ferreira, Francini, Bonet, Mireia, Cantoni, Jordi, Prat, Núria, Ara, Jordi, Forcada Arcarons, Anna, Farré, Magí, Pradenas, Edwards, Blanco, Julià, Àngel Rodriguez-Arias, Miquel, Fernández Rivas, Gema, Marks, Michael, Bassat, Quique, Blanco, Ignacio, Baro, Bàrbara, Clotet, Bonaventura, and Mitjà, Oriol

Published
2022
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6. COVID-19 Convalescent Plasma Outpatient Therapy to Prevent Outpatient Hospitalization

Author

Levine, Adam C, Fukuta, Yuriko, Huaman, Moises A, Ou, Jiangda, Meisenberg, Barry R, Patel, Bela, Paxton, James H, Hanley, Daniel F, Rijnders, Bart Ja, Gharbharan, Arvind, Rokx, Casper, Zwaginga, Jaap Jan, Alemany, Andrea, Mitjà, Oriol, Ouchi, Dan, Millat-Martinez, Pere, Durkalski-Mauldin, Valerie, Korley, Frederick K, Dumont, Larry J, Callaway, Clifton W, Libster, Romina, Marc, Gonzalo Perez, Wappner, Diego, Esteban, Ignacio, Polack, Fernando, Sullivan, David J, Internal Medicine, Surgery, and Medical Microbiology & Infectious Diseases

Subjects
Microbiology (medical), Infectious Diseases
Abstract

Background Outpatient monoclonal antibodies are no longer effective and antiviral treatments for coronavirus disease 2019 (COVID-19) disease remain largely unavailable in many countries worldwide. Although treatment with COVID-19 convalescent plasma (CCP) is promising, clinical trials among outpatients have shown mixed results. Methods We conducted an individual participant data meta-analysis from outpatient trials to assess the overall risk reduction for all-cause hospitalizations by day 28 in transfused participants. Relevant trials were identified by searching Medline, Embase, medRxiv, World Health Organization COVID-19 Research Database, Cochrane Library, and Web of Science from January 2020 to September 2022. Results Five included studies from 4 countries enrolled and transfused 2620 adult patients. Comorbidities were present in 1795 (69%). The virus neutralizing antibody dilutional titer levels ranged from 8 to 14 580 in diverse assays. One hundred sixty of 1315 (12.2%) control patients were hospitalized, versus 111 of 1305 (8.5%) CCP-treated patients, yielding a 3.7% (95% confidence interval [CI], 1.3%–6.0%; P = .001) absolute risk reduction and 30.1% relative risk reduction for all-cause hospitalization. The hospitalization reduction was greatest in those with both early transfusion and high titer with a 7.6% absolute risk reduction (95% CI, 4.0%–11.1%; P = .0001) accompanied by at 51.4% relative risk reduction. No significant reduction in hospitalization was seen with treatment >5 days after symptom onset or in those receiving CCP with antibody titers below the median titer. Conclusions Among outpatients with COVID-19, treatment with CCP reduced the rate of all-cause hospitalization and may be most effective when given within 5 days of symptom onset and when antibody titer is higher.

Published
2023

8. Subcutaneous anti-COVID-19 hyperimmune immunoglobulin for prevention of disease in asymptomatic individuals with SARS-CoV-2 infection: a double-blind, placebo-controlled, randomised clinical trial

Author

Alemany, Andrea, primary, Millat-Martinez, Pere, additional, Corbacho-Monné, Marc, additional, Suñer, Clara, additional, Galvan-Casas, Cristina, additional, Carrera, Caty, additional, Ouchi, Dan, additional, Prat, Núria, additional, Ara, Jordi, additional, Nadal, Nuria, additional, Riel, Ricard, additional, Funollet, Blanca, additional, Ojeda-Ciurana, Carmen, additional, Balague, Lluis Esteve, additional, Salvador-González, Betlem, additional, Arcarons, Anna Forcada, additional, Vidal-Alaball, Josep, additional, Del Cura-González, María Isabel, additional, Barrientos, Ricardo Rodríguez, additional, Ramos-Blanes, Rafel, additional, Bou, Alberto Alum, additional, Mondou, Elsa, additional, Torres, Mireia, additional, Campins, Neus, additional, Sanz, Ana, additional, Tang, Yonggiang, additional, Rodriguez-Arias, Miquel Àngel, additional, Bassat, Quique, additional, Clotet, Bonaventura, additional, Mitjà, Oriol, additional, Aguilar-Uroz, Adrià, additional, Rosell-García-Ufano, Adrià, additional, Escudero Planas, Adrián, additional, Baelo, Aida, additional, Villahoz Martín, Ainhoa, additional, Moreno López, Alberto, additional, Roldan Ruiz, Alberto, additional, Santana Briongos, Alberto, additional, Tejera Bodas, Alberto, additional, Alonso-Vallés, Alejandro, additional, Fletes-Pérez, Alejandro, additional, Hueso-Mor, Alejandro, additional, Boluda, Alex, additional, Santamaria, Alex, additional, Diestro, Alicia Santos, additional, Revuelta-Álvarez, Almudena, additional, Moreno Moreno, Álvaro, additional, Ortega de Felipe, Ana, additional, Chen-Ye, Ana, additional, Blázquez Valerón, Ana, additional, Rodríguez Pérez, Ana Belén, additional, Tristán Morgalo, Ana Laura, additional, Fernández-Allende, Ana Luisa, additional, Bagán-Trejo, Andrea, additional, Fernández Juan, Andrés, additional, Zalve-Cano, Ángel, additional, Mateo-Martínez, Anna, additional, Galván, Antonio Valero, additional, Egidos-Plaja, Antonio, additional, Jorge, Ariadna, additional, Fraile Torres, Arturo, additional, Pareja Leal, Azahara Maria, additional, Viader Castro, Bárbara, additional, Fernandez Beato, Barbara, additional, Naveira Menchen, Barbara, additional, Martin Poyatos, Beatriz, additional, García-Martínez, Beatriz, additional, Rodrigo Testillano, Belén, additional, Blanco Tejedor, Belen, additional, López Pérez, Blanca, additional, Mencía Hernanz, Blanca, additional, González-Beiras, Camila, additional, Batres, Carlos, additional, Nuñez Garcia, Carmen, additional, Merino-Rodríguez, Carmen, additional, Rodríguez-Gilabert, Carolina, additional, Bonilla Penedo, Celia, additional, Casado Gomez, Christian, additional, Gonzalez Perez, Claudia, additional, Galindo-Tomás, Claudia, additional, Peral Bolaños, Cristina, additional, Blanco-Montes, Cristina, additional, Lupu-Yakovleva, Cristina, additional, Lopez Ruiz, Cristina, additional, Perez Mayoral, Cristina, additional, Fornes, Cristina, additional, Garcia Corrochano, Cristobal, additional, Gallardo Álvarez, Daniel, additional, Navarro Sanz, Daniel, additional, Sanz Barrio, David, additional, Ramet Meseguer, Debora, additional, Vera-Jurado, Edna Margarita, additional, Perez Costa, Eduardo, additional, Bustillos-Sebastian, Eilen Junet, additional, Palomar Casado, Elena, additional, Guerrero, Elena Dorrego, additional, Medina Mateos, Elena, additional, Aragón Gaspar, Elisa Rebeca, additional, Herrero-Vila, Elisabeth, additional, Paez Herrera, Enriqueta, additional, Rojas Powel, Esmeralda, additional, Robres Medialdea, Esther, additional, Vall-Ribalta, Esther, additional, Lopez Perez, Eva, additional, Mihaela Fer, Felicia, additional, Vazquez Ángeles, Fernanda, additional, Tirado Bejarano, Fernando, additional, Prats-Domenech, Ferran, additional, Borràs Martí, Ferran, additional, Ardila-Mejia, Gabriela, additional, Costes, Gèlia, additional, Gómez Arquero, Gema, additional, Flores Mateo, Gemma, additional, Pintos-Morell, Guillem, additional, Mira-Centelles, Helena, additional, Astola Requena, Ignacio, additional, Ortega Martin, Ignacio, additional, Leivas-Gutierrez, Iker, additional, Escribano Valenciano, Irene, additional, Muñoz Gomez, Irene, additional, Ortega, Irina, additional, Montserrat-Lloan, Isabel, additional, Gamboa, Itziar, additional, Rodríguez de Torres de Paul, Jacobo, additional, Cahís, Jordi, additional, Muñoz-Martinez, Jordi, additional, Bermejo, Jorge Iglesias, additional, Cejas López, Joselvis Virginia, additional, Canudas, Josep, additional, García Lucas, Juan Antonio, additional, Martínez-Pino, Juan Carlos, additional, Torres Martínez, Juana, additional, Pujol-Corney, Judit, additional, González Jiménez, Judith, additional, Gurí, Júlia, additional, Labella Martín, Julio, additional, Garcia-Cano, Laia, additional, Perez Plata, Lara Sonsoles, additional, Muñoz Álvaro, Laura, additional, Rodríguez Andrés, Laura, additional, Vega Ruiz, Laura, additional, Cuevas Valiente, Laura, additional, Díaz Rodríguez, Laura, additional, Puigros, Laura, additional, Cristina Piciorang, Lavinia, additional, Escudero, Leticia, additional, Figueroa Caballero, Liliana, additional, Ferrerfàbrega-Costals, Lluna, additional, Costafreda-Hernández, Lucía, additional, De-Paúl, Lucía, additional, González Fernández-Medina, Luis, additional, Moliner Prada, Ma Carmen, additional, Berriochoa Martínez de Pisón, Ma Cristina, additional, Blanco Blasco, Maria, additional, Gil Jorge, Maria, additional, Cortijo Caballero, María, additional, Ubals, Maria, additional, Gordillo, Maria, additional, Guilloto López, Maria Alicia, additional, Moreno Calvo, Maria Concepción, additional, Gil García, María del Rosario, additional, Dueñas Román, María Inmaculada, additional, Gonzalez Sanchez, Maria Josefa, additional, Nicolás Campoy, María Luisa, additional, González Velayos, Maria Luz, additional, Zori, Mario Mejías, additional, Maqueda, Mario Oliva, additional, Caño de la Cruz, Mario, additional, Palau-Morral, Mariona, additional, Martín-Muñoz, Marta, additional, Cereceda Meca, Marta, additional, Díaz Urbina, Marta, additional, VerónicaPlazas, Martha, additional, Vall-Mayans, Martí, additional, Blasco, Martí, additional, Jane Chu-Sifuentes, Mary, additional, García de Villasladad Peñaranda, Miguel, additional, Hernanz Sotoca, Miguel, additional, Iglesias Gonzalez, Miguel, additional, Labrador-Galván, Miguel Ángel, additional, Rodrigo de Vivar Azcarate, Miguel, additional, Gil-Fibla, Miquel, additional, Formentí-Pallarés, Miquel, additional, Esteve-Tugues, Mireia, additional, Juanes Perez, Miriam, additional, López Rubio, Miriam, additional, Recuero Renales, Mirian, additional, Hijós-Rullo, Mònica, additional, Lleonart-Abadia, Montserrat, additional, Finelli, Nadia, additional, Rojas-Bertier, Naiara, additional, Reyes-Calderón, Nataly, additional, Casado Larrañaga, Nerea, additional, Zurita Castrosin, Nerea Nuria, additional, Álvarez-Nieto, Noélia, additional, Leiva-Mora, Nuria, additional, Tomillo-Martín, Olga, additional, Belghazi, Omar, additional, Buscà, Oriol, additional, Mendoza Cediel, Pablo, additional, Macedo, Pablo, additional, Rodríguez Barroso, Patricia, additional, Ruiz Álvarez, Patricia, additional, López, Patricia Morales, additional, Vara de Rey, Patricia Jimenez, additional, Ginés, Paz Lozano, additional, Bris Rodriguez, Pilar, additional, Martínez-Alamillo, Pilar, additional, Salmerón Martínez, Rafa, additional, Botello Ariza, Raquel, additional, Vaquero Mena, Raquel, additional, González-Alonso, Raquel, additional, Kaczmarczyk, Raul, additional, Barnadas Vintró, Rita, additional, Hontecillas Martínez, Rodrigo, additional, Ribot-Rodríguez, Rosa, additional, Escobar-Sánchez, Rosa, additional, Montes Trinidad, Rosario Paloma, additional, Martínez Quintana, Rubén, additional, Arnay Arrogante, Ruben, additional, Berjon Sanchez, Ruben, additional, Picazo Navarro, Ruben, additional, Bastos, Rubén, additional, Martín Molinero, Samuel, additional, Israel-Benchaya, Samuel Dan, additional, Muñoz-Burguillo, Sandra, additional, Rodríguez-Salvador, Sandra, additional, Avila, Sara, additional, Corral Gayubas, Sara, additional, Nuñez Sánchez, Sergio, additional, Torres Weber, Sofía, additional, Encabo Lopez, Susana, additional, Torices Rasines, Teresa, additional, Sallas, Valentí, additional, Curto-Vicente, Verónica, additional, Gómez Hijosa, Verónica, additional, Daimiel-Pedrote, Verónica, additional, Gozalo, Verónica, additional, Barrios López, Vicente, additional, Castillo Montoya, Virginia Ivette, additional, Espinoza Pérez, Yuri, additional, CristinaBerriochoa Martínez de Pisón, María, additional, Muñoz Castillo, David, additional, Donato, Carlos, additional, and García García, Isabel, additional

Published
2023
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9. Coronavirus Disease 2019 Convalescent Plasma Outpatient Therapy to Prevent Outpatient Hospitalization:A Meta-analysis of Individual Participant Data From 5 Randomized Trials

Author

Levine, Adam C, Fukuta, Yuriko, Huaman, Moises A, Ou, Jiangda, Meisenberg, Barry R, Patel, Bela, Paxton, James H, Hanley, Daniel F, Rijnders, Bart Ja, Gharbharan, Arvind, Rokx, Casper, Zwaginga, Jaap Jan, Alemany, Andrea, Mitjà, Oriol, Ouchi, Dan, Millat-Martinez, Pere, Durkalski-Mauldin, Valerie, Korley, Frederick K, Dumont, Larry J, Callaway, Clifton W, Libster, Romina, Marc, Gonzalo Perez, Wappner, Diego, Esteban, Ignacio, Polack, Fernando, Sullivan, David J, Levine, Adam C, Fukuta, Yuriko, Huaman, Moises A, Ou, Jiangda, Meisenberg, Barry R, Patel, Bela, Paxton, James H, Hanley, Daniel F, Rijnders, Bart Ja, Gharbharan, Arvind, Rokx, Casper, Zwaginga, Jaap Jan, Alemany, Andrea, Mitjà, Oriol, Ouchi, Dan, Millat-Martinez, Pere, Durkalski-Mauldin, Valerie, Korley, Frederick K, Dumont, Larry J, Callaway, Clifton W, Libster, Romina, Marc, Gonzalo Perez, Wappner, Diego, Esteban, Ignacio, Polack, Fernando, and Sullivan, David J

Abstract

Background: Outpatient monoclonal antibodies are no longer effective and antiviral treatments for coronavirus disease 2019 (COVID-19) disease remain largely unavailable in many countries worldwide. Although treatment with COVID-19 convalescent plasma (CCP) is promising, clinical trials among outpatients have shown mixed results. Methods: We conducted an individual participant data meta-analysis from outpatient trials to assess the overall risk reduction for all-cause hospitalizations by day 28 in transfused participants. Relevant trials were identified by searching Medline, Embase, medRxiv, World Health Organization COVID-19 Research Database, Cochrane Library, and Web of Science from January 2020 to September 2022. Results: Five included studies from 4 countries enrolled and transfused 2620 adult patients. Comorbidities were present in 1795 (69%). The virus neutralizing antibody dilutional titer levels ranged from 8 to 14 580 in diverse assays. One hundred sixty of 1315 (12.2%) control patients were hospitalized, versus 111 of 1305 (8.5%) CCP-treated patients, yielding a 3.7% (95% confidence interval [CI], 1.3%-6.0%; P =. 001) absolute risk reduction and 30.1% relative risk reduction for all-cause hospitalization. The hospitalization reduction was greatest in those with both early transfusion and high titer with a 7.6% absolute risk reduction (95% CI, 4.0%-11.1%; P =. 0001) accompanied by at 51.4% relative risk reduction. No significant reduction in hospitalization was seen with treatment >5 days after symptom onset or in those receiving CCP with antibody titers below the median titer. Conclusions: Among outpatients with COVID-19, treatment with CCP reduced the rate of all-cause hospitalization and may be most effective when given within 5 days of symptom onset and when antibody titer is higher.

Published
2023

10. COVID-19 Convalescent Plasma Outpatient Therapy to Prevent Outpatient Hospitalization: A Meta-analysis of Individual Participant Data From Five Randomized Trials

Author

Levine, Adam C., primary, Fukuta, Yuriko, additional, Huaman, Moises A., additional, Ou, Jiangda, additional, Meisenberg, Barry R., additional, Patel, Bela, additional, Paxton, James H., additional, Hanley, Daniel F., additional, Rijnders, Bart JA, additional, Gharbharan, Arvind, additional, Rokx, Casper, additional, Zwaginga, Jaap Jan, additional, Alemany, Andrea, additional, Mitjà, Oriol, additional, Ouchi, Dan, additional, Millat-Martinez, Pere, additional, Durkalski-Mauldin, Valerie, additional, Korley, Frederick K., additional, Dumont, Larry J., additional, Callaway, Clifton W., additional, Libster, Romina, additional, Marc, Gonzalo Perez, additional, Wappner, Diego, additional, Esteban, Ignacio, additional, Polack, Fernando, additional, and Sullivan, David J., additional

Published
2022
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11. Low transmission of SARS-CoV-2 derived from children in family clusters: An observational study of family households in the Barcelona Metropolitan Area, Spain

Author

Mele-Casas, Maria, primary, Launes, Cristian, additional, de Sevilla, Mariona F., additional, Hernandez-Garcia, Maria, additional, Pons-Tomas, Gemma, additional, Bassat, Quique, additional, Fumado, Victoria, additional, Fortuny, Claudia, additional, Garcia-Miquel, Aleix, additional, Bonet-Carne, Elisenda, additional, Prats, Clara, additional, Ajanovic, Sara, additional, Cubells, Marta, additional, Claverol, Joana, additional, Penela-Sanchez, Daniel, additional, Jou, Cristina, additional, Arias, Sara, additional, Balanza, Nuria, additional, Baro, Barbara, additional, Millat-Martinez, Pere, additional, Alonso, Sergio, additional, Alvarez-Lacalle, Enric, additional, Catala, Marti, additional, Cuadras, Daniel, additional, Muñoz-Almagro, Carmen, additional, Gratacos, Eduard, additional, Jordan, Iolanda, additional, and Garcia-Garcia, Juan Jose, additional

Published
2022
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12. Coronavirus Disease 2019 Convalescent Plasma Outpatient Therapy to Prevent Outpatient Hospitalization: A Meta-Analysis of Individual Participant Data From 5 Randomized Trials.

Author

Levine, Adam C, Fukuta, Yuriko, Huaman, Moises A, Ou, Jiangda, Meisenberg, Barry R, Patel, Bela, Paxton, James H, Hanley, Daniel F, Rijnders, Bart J A, Gharbharan, Arvind, Rokx, Casper, Zwaginga, Jaap Jan, Alemany, Andrea, Mitjà, Oriol, Ouchi, Dan, Millat-Martinez, Pere, Durkalski-Mauldin, Valerie, Korley, Frederick K, Dumont, Larry J, and Callaway, Clifton W

Subjects
MEDICAL databases, RELATIVE medical risk, META-analysis, MEDICAL information storage & retrieval systems, CONFIDENCE intervals, IMMUNOGLOBULINS, SYSTEMATIC reviews, PREVENTIVE health services, CONVALESCENT plasma, HOSPITAL care, DESCRIPTIVE statistics, MEDLINE, COVID-19 pandemic, OUTPATIENT services in hospitals, COMORBIDITY
Abstract

Background Outpatient monoclonal antibodies are no longer effective and antiviral treatments for coronavirus disease 2019 (COVID-19) disease remain largely unavailable in many countries worldwide. Although treatment with COVID-19 convalescent plasma (CCP) is promising, clinical trials among outpatients have shown mixed results. Methods We conducted an individual participant data meta-analysis from outpatient trials to assess the overall risk reduction for all-cause hospitalizations by day 28 in transfused participants. Relevant trials were identified by searching Medline, Embase, medRxiv, World Health Organization COVID-19 Research Database, Cochrane Library, and Web of Science from January 2020 to September 2022. Results Five included studies from 4 countries enrolled and transfused 2620 adult patients. Comorbidities were present in 1795 (69%). The virus neutralizing antibody dilutional titer levels ranged from 8 to 14 580 in diverse assays. One hundred sixty of 1315 (12.2%) control patients were hospitalized, versus 111 of 1305 (8.5%) CCP-treated patients, yielding a 3.7% (95% confidence interval [CI], 1.3%–6.0%; P =.001) absolute risk reduction and 30.1% relative risk reduction for all-cause hospitalization. The hospitalization reduction was greatest in those with both early transfusion and high titer with a 7.6% absolute risk reduction (95% CI, 4.0%–11.1%; P =.0001) accompanied by at 51.4% relative risk reduction. No significant reduction in hospitalization was seen with treatment >5 days after symptom onset or in those receiving CCP with antibody titers below the median titer. Conclusions Among outpatients with COVID-19, treatment with CCP reduced the rate of all-cause hospitalization and may be most effective when given within 5 days of symptom onset and when antibody titer is higher. [ABSTRACT FROM AUTHOR]

Published
2023
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13. Impact of COVID-19 Lockdown on the Nasopharyngeal Microbiota of Children and Adults Self-Confined at Home

Author

Rocafort, Muntsa, primary, Henares, Desiree, additional, Brotons, Pedro, additional, Launes, Cristian, additional, Fernandez de Sevilla, Mariona, additional, Fumado, Victoria, additional, Barrabeig, Irene, additional, Arias, Sara, additional, Redin, Alba, additional, Ponomarenko, Julia, additional, Mele, Maria, additional, Millat-Martinez, Pere, additional, Claverol, Joana, additional, Balanza, Nuria, additional, Mira, Alex, additional, Garcia-Garcia, Juan J., additional, Bassat, Quique, additional, Jordan, Iolanda, additional, and Muñoz-Almagro, Carmen, additional

Published
2022
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14. Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 Infection Among Children in Summer Schools Applying Stringent Control Measures in Barcelona, Spain

Author

Epi Infectieziekten Team 1, Child Health, Infection & Immunity, JC onderzoeksprogramma Infectieziekten, Jordan, Iolanda, de Sevilla, Mariona Fernandez, Fumado, Victoria, Bassat, Quique, Bonet-Carne, Elisenda, Fortuny, Claudia, Garcia-Miquel, Aleix, Jou, Cristina, Adroher, Cristina, Casas, María Melé, Girona-Alarcon, Mònica, Garcia, María Hernández, Tomas, Gemma Pons, Ajanovic, Sara, Arias, Sara, Balanza, Núria, Baro, Bárbara, Millat-Martinez, Pere, Varo, Rosauro, Alonso, Sergio, Álvarez-Lacalle, Enric, López, Daniel, Claverol, Joana, Cubells, Marta, Brotons, Pedro, Codina, Anna, Cuadras, Daniel, Bruijning-Verhagen, Patricia, Faust, Saul, Munro, Alasdair, Muñoz-Almagro, Carmen, Català, Martí, Prats, Clara, Garcia-Garcia, Juan José, Gratacós, Eduard, Epi Infectieziekten Team 1, Child Health, Infection & Immunity, JC onderzoeksprogramma Infectieziekten, Jordan, Iolanda, de Sevilla, Mariona Fernandez, Fumado, Victoria, Bassat, Quique, Bonet-Carne, Elisenda, Fortuny, Claudia, Garcia-Miquel, Aleix, Jou, Cristina, Adroher, Cristina, Casas, María Melé, Girona-Alarcon, Mònica, Garcia, María Hernández, Tomas, Gemma Pons, Ajanovic, Sara, Arias, Sara, Balanza, Núria, Baro, Bárbara, Millat-Martinez, Pere, Varo, Rosauro, Alonso, Sergio, Álvarez-Lacalle, Enric, López, Daniel, Claverol, Joana, Cubells, Marta, Brotons, Pedro, Codina, Anna, Cuadras, Daniel, Bruijning-Verhagen, Patricia, Faust, Saul, Munro, Alasdair, Muñoz-Almagro, Carmen, Català, Martí, Prats, Clara, Garcia-Garcia, Juan José, and Gratacós, Eduard

Published
2022

15. High-titre methylene blue-treated convalescent plasma as an early treatment for outpatients with COVID-19: a randomised, placebo-controlled trial

Author

Alemany, Andrea, primary, Millat-Martinez, Pere, additional, Corbacho-Monné, Marc, additional, Malchair, Pierre, additional, Ouchi, Dan, additional, Ruiz-Comellas, Anna, additional, Ramírez-Morros, Anna, additional, Rodríguez Codina, Joana, additional, Amado Simon, Rosa, additional, Videla, Sebastian, additional, Costes, Gèlia, additional, Capdevila-Jáuregui, Mar, additional, Torrano-Soler, Pamela, additional, San José, Alba, additional, Bonet Papell, Glòria, additional, Puig, Jordi, additional, Otero, Aurema, additional, Ruibal Suarez, Jose Carlos, additional, Zarauza Pellejero, Alvaro, additional, Llopis Roca, Ferran, additional, Rodriguez Cortez, Orlando, additional, Garcia Garcia, Vanesa, additional, Vidal-Alaball, Josep, additional, Millan, Anna, additional, Contreras, Enric, additional, Grifols, Joan-Ramon, additional, Ancochea, Àgueda, additional, Galvan-Femenia, Ivan, additional, Piccolo Ferreira, Francini, additional, Bonet, Mireia, additional, Cantoni, Jordi, additional, Prat, Núria, additional, Ara, Jordi, additional, Forcada Arcarons, Anna, additional, Farré, Magí, additional, Pradenas, Edwards, additional, Blanco, Julià, additional, Àngel Rodriguez-Arias, Miquel, additional, Fernández Rivas, Gema, additional, Marks, Michael, additional, Bassat, Quique, additional, Blanco, Ignacio, additional, Baro, Bàrbara, additional, Clotet, Bonaventura, additional, Mitjà, Oriol, additional, Ferrer, Susana, additional, Gallardo, Mireia, additional, Ubals, Maria, additional, González-Beiras, Camila, additional, Vall-Mayans, Martí, additional, Suñer, Clara, additional, Laporte-Villar, Clàudia, additional, Nieto, Aroa, additional, Comas-Leon, Xavier, additional, Jiménez, Zahida, additional, Ramírez-Viaplana, Ferran, additional, Delgado-Capel, Maria, additional, Díez Sánchez, Beatriz, additional, Pons Barber, Maria, additional, Gonzalez Ruiz, Cristian, additional, Navarrete Gonzalez, Laura, additional, González García, David, additional, Vivero Larraza, Ainhoa, additional, Carceles Peiró, Victor, additional, Roquer López, Clàudia, additional, Robert, Neus, additional, Palet, Carles, additional, Gudiol, Carlota, additional, Casares Gonzalez, Pablo, additional, Arcos Vila, Gemma, additional, Flores Aguilera, Begoña, additional, Rodríguez-Sevilla, Graciela, additional, Dastis Arias, Macarena, additional, Roca Font, Judit, additional, Carrasco Matos, Katherine M., additional, Saüch Valmaña, Glòria, additional, Vidal Obradors, Carla, additional, Tarres García, Silvia, additional, Curriu Sabatès, Margarida, additional, Nieto Rodríguez, Raquel, additional, Línio, Rosa, additional, Fornos, Míriam, additional, Casamitjana, Natàlia, additional, Alonso, Eva, additional, Martínez, Núria, additional, Maglio, Laura Analía, additional, Comellas Fernandez, Laura, additional, Garcia, Nadia, additional, Hernández, Luis, additional, González, Maria Isabel, additional, Bravo, Anna, additional, García, Yolanda, additional, Sauleda Oliveras, Silvia, additional, Vertiz, Tatiana, additional, Benavent, Sergio, additional, Bianco, Andrea Sofia, additional, Verdaguer, Joaquim, additional, Briones Zambrano, Ney Nicanor, additional, Viozquez Meya, Maria, additional, Hernández, Águeda, additional, Casaña Lopez, Cristina, additional, Bordoy, Antoni E., additional, González Soler, Victoria, additional, Giménez, Montserrat, additional, París, Alexa, additional, Marfil, Silvia, additional, Trinité, Benjamin, additional, and Grau, Eulàlia, additional

Published
2022
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16. Self-collected mid-nasal swabs and saliva specimens, compared with nasopharyngeal swabs, for SARS-CoV-2 detection in mild COVID-19 patients

Author

Alemany, Andrea, primary, Millat-Martinez, Pere, additional, Ouchi, Dan, additional, Corbacho-Monné, Marc, additional, Bordoy, Antoni E., additional, Esteban, Cristina, additional, Hernández, Águeda, additional, Casañ, Cristina, additional, Gonzalez, Victoria, additional, Costes, Gèlia, additional, Capdevila-Jáuregui, Mar, additional, Torrano-Soler, Pamela, additional, San José, Alba, additional, Ara, Jordi, additional, Prat, Núria, additional, Clotet, Bonaventura, additional, Bassat, Quique, additional, Gimenez, Montserrat, additional, Blanco, Ignacio, additional, Baro, Bàrbara, additional, and Mitjà, Oriol, additional

Published
2021
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17. Performance characteristics of five antigen-detecting rapid diagnostic test (Ag-RDT) for SARS-CoV-2 asymptomatic infection: a head-to-head benchmark comparison

Author

Baro, Bàrbara, primary, Rodo, Pau, additional, Ouchi, Dan, additional, Bordoy, Antoni E., additional, Saya Amaro, Emilio N., additional, Salsench, Sergi V., additional, Molinos, Sònia, additional, Alemany, Andrea, additional, Ubals, Maria, additional, Corbacho-Monné, Marc, additional, Millat-Martinez, Pere, additional, Marks, Michael, additional, Clotet, Bonaventura, additional, Prat, Nuria, additional, Estrada, Oriol, additional, Vilar, Marc, additional, Ara, Jordi, additional, Vall-Mayans, Martí, additional, G-Beiras, Camila, additional, Bassat, Quique, additional, Blanco, Ignacio, additional, and Mitjà, Oriol, additional

Published
2021
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18. Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 Infection Among Children in Summer Schools Applying Stringent Control Measures in Barcelona, Spain

Author

Jordan, Iolanda, primary, Fernandez de Sevilla, Mariona, additional, Fumado, Victoria, additional, Bassat, Quique, additional, Bonet-Carne, Elisenda, additional, Fortuny, Claudia, additional, Garcia-Miquel, Aleix, additional, Jou, Cristina, additional, Adroher, Cristina, additional, Melé Casas, María, additional, Girona-Alarcon, Mònica, additional, Hernández Garcia, María, additional, Pons Tomas, Gemma, additional, Ajanovic, Sara, additional, Arias, Sara, additional, Balanza, Núria, additional, Baro, Bárbara, additional, Millat-Martinez, Pere, additional, Varo, Rosauro, additional, Alonso, Sergio, additional, Álvarez-Lacalle, Enric, additional, López, Daniel, additional, Claverol, Joana, additional, Cubells, Marta, additional, Brotons, Pedro, additional, Codina, Anna, additional, Cuadras, Daniel, additional, Bruijning-Verhagen, Patricia, additional, Faust, Saul, additional, Munro, Alasdair, additional, Muñoz-Almagro, Carmen, additional, Català, Martí, additional, Prats, Clara, additional, Garcia-Garcia, Juan José, additional, and Gratacós, Eduard, additional

Published
2021
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19. Transmission of COVID-19 in 282 clusters in Catalonia, Spain: a cohort study

Author

YoMeCorono, Generalitat de Catalunya, Marks, Michael [0000-0002-7585-4743], Roberts, Chrissy H. [0000-0003-1064-5980], Marks, Michael, Millat-Martinez, Pere, Ouchi, Dan, Roberts, Chrissy H., Alemany, Andrea, Corbacho, Marc, Ubals, Maria, Tobías, Aurelio, Tebé, Cristian, Ballana, Ester, Vall-Mayans, Martí, G-Beiras, Camila, Prat, Nuria, Ara, Jordi, Clotet, Bonaventura, Mitjà, Oriol, YoMeCorono, Generalitat de Catalunya, Marks, Michael [0000-0002-7585-4743], Roberts, Chrissy H. [0000-0003-1064-5980], Marks, Michael, Millat-Martinez, Pere, Ouchi, Dan, Roberts, Chrissy H., Alemany, Andrea, Corbacho, Marc, Ubals, Maria, Tobías, Aurelio, Tebé, Cristian, Ballana, Ester, Vall-Mayans, Martí, G-Beiras, Camila, Prat, Nuria, Ara, Jordi, Clotet, Bonaventura, and Mitjà, Oriol

Abstract

Background There remains limited data on what variables affect risk of transmission of SARS-CoV-2 and developing symptomatic Covid-19 and in particular the relationship to viral load (VL). We analysed data from linked index cases and their contacts to explore factors associated with transmission of SARS-CoV-2. Methods Patients were recruited as part of a randomized control trial, conducted between March to April 2020, that aimed to assess if hydroxychloroquine reduced transmission of SARS-CoV-2. Non-hospitalised Covid-19 cases and their contacts were identified through the local surveillance system. VL, measured by quantitative PCR from a nasopharyngeal swab, was assessed at enrollment, at day 14, and whenever the participant reported Covid-19-like symptoms. Risk of transmission, developing symptomatic disease and incubation dynamics were evaluated using regression analysis. Findings We identified 314 cases, 282 of which had at least one contact (753 contacts in total). Ninety (33%) of 282 clusters had at least one transmission event. The secondary attack rate was 16% (125/753), with a variation from 12% to 24% for VL of the index case of <106, and >109 copies/mL, respectively (OR per log10 increase in VL 1.3 95%CI 1.1–1.6). Increased risk of transmission was also associated with household contact (OR 2.7; 1.4–5.06) and age of the contact (OR 1.02 per year; 1.01–1.04). The proportion of PCR positive contacts who developed symptomatic Covid-19 was 40.3% (181/449), with a variation from 25% to 60% for VL of the contact <107, and >109 copies/mL (HR log10 increase in VL 1.12; 95% CI 1.05 – 1.2). Time to onset of symptomatic disease decreased from a median of 7 days (IQR 5–10) for individuals with an initial viral load <107 to 6 days (4–8) and 5 days (3–8) for individuals with an initial viral load of 107–109 and >109, respectively. Interpretation Viral load of index cases is a leading driver of SARS-CoV-2 transmission. The risk of symptomatic Covid-19 is strongly associ

Published
2020

20. Transmission of COVID-19 in 282 clusters in Catalonia, Spain: a cohort study

Author

Marks, Michael, primary, Millat-Martinez, Pere, additional, Ouchi, Dan, additional, Roberts, Chrissy h., additional, Alemany, Andrea, additional, Corbacho-Monné, Marc, additional, Ubals, Maria, additional, Tobias, Aurelio, additional, Tebé, Cristian, additional, Ballana, Ester, additional, Vall-Mayans, Martí, additional, G-Beiras, Camila, additional, Prat, Nuria, additional, Ara, Jordi, additional, Clotet, Bonaventura, additional, and Mitjà, Oriol, additional

Published
2020
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21. Transmission of Severe Acute Respiratory Syndrome Coronavirus 2 Infection Among Children in Summer Schools Applying Stringent Control Measures in Barcelona, Spain.

Author

Jordan, Iolanda, Sevilla, Mariona Fernandez de, Fumado, Victoria, Bassat, Quique, Bonet-Carne, Elisenda, Fortuny, Claudia, Garcia-Miquel, Aleix, Jou, Cristina, Adroher, Cristina, Casas, María Melé, Girona-Alarcon, Mònica, Garcia, María Hernández, Tomas, Gemma Pons, Ajanovic, Sara, Arias, Sara, Balanza, Núria, Baro, Bárbara, Millat-Martinez, Pere, Varo, Rosauro, and Alonso, Sergio

Subjects
PREVENTION of infectious disease transmission, NASOPHARYNX microbiology, PUBLIC health surveillance, REVERSE transcriptase polymerase chain reaction, COVID-19, PREVENTION of communicable diseases, SCHOOLS, COVID-19 testing, POLYMERASE chain reaction, HAND washing, SOCIAL distancing, CONTACT tracing, LONGITUDINAL method, CHILDREN
Abstract

Background Understanding the role of children in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission is critical to guide decision-making for schools in the pandemic. We aimed to describe the transmission of SARS-CoV-2 among children and adult staff in summer schools. Methods During July 2020, we prospectively recruited children and adult staff attending summer schools in Barcelona who had SARS-CoV-2 infection. Primary SARS-CoV-2 infections were identified through (1) a surveillance program in 22 summer schools of 1905 participants, involving weekly saliva sampling for SARS-CoV-2 reverse-transcription polymerase chain reaction (RT-PCR) during 2–5 weeks; and (2) cases identified through the Catalonian Health Surveillance System of children diagnosed with SARS-CoV-2 infection by nasopharyngeal RT-PCR. All centers followed prevention protocols: bubble groups, handwashing, face masks, and conducting activities mostly outdoors. Contacts of a primary case within the same bubble were evaluated by nasopharyngeal RT-PCR. Secondary attack rates and the effective reproduction number in summer schools (Re*) were calculated. Results Among the >2000 repeatedly screened participants, 30 children and 9 adults were identified as primary cases. A total of 253 close contacts of these primary cases were studied (median, 9 [interquartile range, 5–10] for each primary case), among which 12 new cases (4.7%) were positive for SARS-CoV-2. The Re* was 0.3, whereas the contemporary rate in the general population from the same areas in Barcelona was 1.9. Conclusions The transmission rate of SARS-CoV-2 infection among children attending school-like facilities under strict prevention measures was lower than that reported for the general population. This suggests that under preventive measures schools are unlikely amplifiers of SARS-CoV-2 transmission, supporting current recommendations for school opening. [ABSTRACT FROM AUTHOR]

Published
2022
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23. High-titre methylene blue-treated convalescent plasma as an early treatment for outpatients with COVID-19: a randomised, placebo-controlled trial

Author

Alemany, Andrea, Millat-Martinez, Pere, Corbacho-Monné, Marc, Malchair, Pierre, Ouchi, Dan, Ruiz-Comellas, Anna, Ramírez-Morros, Anna, Rodríguez Codina, Joana, Amado Simon, Rosa, Videla, Sebastian, Costes, Gèlia, Capdevila-Jáuregui, Mar, Torrano-Soler, Pamela, San José, Alba, Bonet Papell, Glòria, Puig, Jordi, Otero, Aurema, Ruibal Suarez, Jose Carlos, Zarauza Pellejero, Alvaro, Llopis Roca, Ferran, Rodriguez Cortez, Orlando, Garcia Garcia, Vanesa, Vidal-Alaball, Josep, Millan, Anna, Contreras, Enric, Grifols, Joan-Ramon, Ancochea, Àgueda, Galvan-Femenia, Ivan, Piccolo Ferreira, Francini, Bonet, Mireia, Cantoni, Jordi, Prat, Núria, Ara, Jordi, Forcada Arcarons, Anna, Farré, Magí, Pradenas, Edwards, Blanco, Julià, Àngel Rodriguez-Arias, Miquel, Fernández Rivas, Gema, Marks, Michael, Bassat, Quique, Blanco, Ignacio, Baro, Bàrbara, Clotet, Bonaventura, Mitjà, Oriol, Ferrer, Susana, Gallardo, Mireia, Ubals, Maria, González-Beiras, Camila, Vall-Mayans, Martí, Suñer, Clara, Laporte-Villar, Clàudia, Nieto, Aroa, Comas-Leon, Xavier, Jiménez, Zahida, Ramírez-Viaplana, Ferran, Delgado-Capel, Maria, Díez Sánchez, Beatriz, Pons Barber, Maria, Gonzalez Ruiz, Cristian, Navarrete Gonzalez, Laura, González García, David, Vivero Larraza, Ainhoa, Carceles Peiró, Victor, Roquer López, Clàudia, Robert, Neus, Palet, Carles, Gudiol, Carlota, Casares Gonzalez, Pablo, Arcos Vila, Gemma, Flores Aguilera, Begoña, Rodríguez-Sevilla, Graciela, Dastis Arias, Macarena, Roca Font, Judit, Carrasco Matos, Katherine M., Saüch Valmaña, Glòria, Vidal Obradors, Carla, Tarres García, Silvia, Curriu Sabatès, Margarida, Nieto Rodríguez, Raquel, Línio, Rosa, Fornos, Míriam, Casamitjana, Natàlia, Alonso, Eva, Martínez, Núria, Maglio, Laura Analía, Comellas Fernandez, Laura, Garcia, Nadia, Hernández, Luis, González, Maria Isabel, Bravo, Anna, García, Yolanda, Sauleda Oliveras, Silvia, Vertiz, Tatiana, Benavent, Sergio, Bianco, Andrea Sofia, Verdaguer, Joaquim, Briones Zambrano, Ney Nicanor, Viozquez Meya, Maria, Hernández, Águeda, Casaña Lopez, Cristina, Bordoy, Antoni E., González Soler, Victoria, Giménez, Montserrat, París, Alexa, Marfil, Silvia, Trinité, Benjamin, and Grau, Eulàlia

Abstract

Convalescent plasma has been proposed as an early treatment to interrupt the progression of early COVID-19 to severe disease, but there is little definitive evidence. We aimed to assess whether early treatment with convalescent plasma reduces the risk of hospitalisation and reduces SARS-CoV-2 viral load among outpatients with COVID-19.

Published
2024
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24. COVID-19 Convalescent Plasma Outpatient Therapy to Prevent Outpatient Hospitalization: A Meta-analysis of Individual Participant Data From Five Randomized Trials.

Author

Levine AC, Fukuta Y, Huaman MA, Ou J, Meisenberg BR, Patel B, Paxton JH, Hanley DF, Rijnders BJ, Gharbharan A, Rokx C, Zwaginga JJ, Alemany A, Mitjà O, Ouchi D, Millat-Martinez P, Durkalski-Mauldin V, Korley FK, Dumont LJ, Callaway CW, Libster R, Marc GP, Wappner D, Esteban I, Polack F, and Sullivan DJ

Abstract

Background: Monoclonal antibody and antiviral treatments for COVID-19 disease remain largely unavailable worldwide, and existing monoclonal antibodies may be less active against circulating omicron variants. Although treatment with COVID-19 convalescent plasma (CCP) is promising, randomized clinical trials (RCTs) among outpatients have shown mixed results., Methods: We conducted an individual participant data meta-analysis from all outpatient CCP RCTs to assess the overall risk reduction for all-cause hospitalizations by day 28 in all participants who had transfusion initiated. Relevant trials were identified by searching MEDLINE, Embase, MedRxiv, WHO, Cochrane Library, and Web of Science from January 2020 to September 2022., Results: Five included studies from four countries enrolled and transfused 2,620 adult patients. Comorbidities were present in 1,795 (69%). The anti-Spike or virus neutralizing antibody titer range across all trials was broad. 160 (12.2%) of 1315 control patients were hospitalized, versus 111 (8.5%) of 1305 CCP-treated patients, yielding a 3.7% (95%CI: 1.3%-6.0%; p=.001) ARR and 30.1% RRR for all-cause hospitalization. The effect size was greatest in those with both early transfusion and high titer with a 7.6% ARR (95%CI: 4.0%-11.1%; p=.0001) accompanied by at 51.4% RRR. No significant reduction in hospitalization was seen with treatment > 5 days after symptom onset or in those receiving CCP with antibody titers below the median titer., Conclusions: Among outpatients with COVID-19, treatment with CCP reduced the rate of all-cause hospitalization. CCP may be most effective when given within 5 days of symptom onset and when antibody titer is higher., Key Points: While the outpatient COVID-19 randomized controlled trial meta-analysis indicated heterogeneity in participant risk factors and convalescent plasma, the combined CCP efficacy for reducing hospitalization was significant, improving with transfusion within 5 days of symptom onset and high antibody neutralization levels.

Published
2022
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