Multicentre, randomised, open-label, phase IV-III study to evaluate the efficacy of cloxacillin plus fosfomycin versus cloxacillin alone in adult patients with methicillin-susceptible Staphylococcus aureus bacteraemia: study protocol for the SAFO trial

Introduction: Methicillin-susceptible Staphylococcus aureus (MSSA) bacteraemia is a frequent condition, with high mortality rates. There is a growing interest in identifying new therapeutic regimens able to reduce therapeutic failure and mortality observed with the standard of care of beta-lactam mo...

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Autores: Grillo, Sara, Cuervo Requena, Guillermo, Carratalà, Jordi, Sanjuan, Rafael, Aguado, José María, Morata, Laura, Gómez-Zorrilla Martín, Silvia, López-Contreras, Joaquín, Gasch, Oriol, Gomila Grange, Aina, Iftimie, Simona, Garcia Pardo, Graciano, Calbo, Esther, Boix Palop, Lucía, Oriol, Isabel, Jover-Sáenz, Alfredo, López-Cortés, Luis Eduardo, Euba, Gorane, Aguirregabiria, Malen, Garcia-Pais, Maria Jose, Gioia, Francesca, Paño Pardo, José Ramón, Pedro-Botet Montoya, Ma Luisa, Benítez, Rosa M., Pérez-Rodríguez, Maria Teresa, Meije, Yolanda, Loeches-Yagüe, Maria Belén, Horna, Gertrudis, Berbel, Dàmaris, Domínguez, María Ángeles, Padullés Zamora, Ariadna, Cobo Sacristán, Sara, Hereu, Pilar, Videla, Sebastià, Tebé, Cristian, Pallarès, Natàlia, Miró Meda, José M. (José María), 1956-, Pujol Rojo, Miquel, SAFO study group, Spanish Network for Research in Infectious Diseases (REIPI).
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/198352
Acceso en línea:https://hdl.handle.net/2445/198352
Access Level:acceso abierto
Palabra clave:Malalties infeccioses
Microbiologia
Assaigs clínics
Communicable diseases
Microbiology
Clinical trials
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dc.title.none.fl_str_mv Multicentre, randomised, open-label, phase IV-III study to evaluate the efficacy of cloxacillin plus fosfomycin versus cloxacillin alone in adult patients with methicillin-susceptible Staphylococcus aureus bacteraemia: study protocol for the SAFO trial
title Multicentre, randomised, open-label, phase IV-III study to evaluate the efficacy of cloxacillin plus fosfomycin versus cloxacillin alone in adult patients with methicillin-susceptible Staphylococcus aureus bacteraemia: study protocol for the SAFO trial
spellingShingle Multicentre, randomised, open-label, phase IV-III study to evaluate the efficacy of cloxacillin plus fosfomycin versus cloxacillin alone in adult patients with methicillin-susceptible Staphylococcus aureus bacteraemia: study protocol for the SAFO trial
Grillo, Sara
Malalties infeccioses
Microbiologia
Assaigs clínics
Communicable diseases
Microbiology
Clinical trials
title_short Multicentre, randomised, open-label, phase IV-III study to evaluate the efficacy of cloxacillin plus fosfomycin versus cloxacillin alone in adult patients with methicillin-susceptible Staphylococcus aureus bacteraemia: study protocol for the SAFO trial
title_full Multicentre, randomised, open-label, phase IV-III study to evaluate the efficacy of cloxacillin plus fosfomycin versus cloxacillin alone in adult patients with methicillin-susceptible Staphylococcus aureus bacteraemia: study protocol for the SAFO trial
title_fullStr Multicentre, randomised, open-label, phase IV-III study to evaluate the efficacy of cloxacillin plus fosfomycin versus cloxacillin alone in adult patients with methicillin-susceptible Staphylococcus aureus bacteraemia: study protocol for the SAFO trial
title_full_unstemmed Multicentre, randomised, open-label, phase IV-III study to evaluate the efficacy of cloxacillin plus fosfomycin versus cloxacillin alone in adult patients with methicillin-susceptible Staphylococcus aureus bacteraemia: study protocol for the SAFO trial
title_sort Multicentre, randomised, open-label, phase IV-III study to evaluate the efficacy of cloxacillin plus fosfomycin versus cloxacillin alone in adult patients with methicillin-susceptible Staphylococcus aureus bacteraemia: study protocol for the SAFO trial
dc.creator.none.fl_str_mv Grillo, Sara
Cuervo Requena, Guillermo
Carratalà, Jordi
Sanjuan, Rafael
Aguado, José María
Morata, Laura
Gómez-Zorrilla Martín, Silvia
López-Contreras, Joaquín
Gasch, Oriol
Gomila Grange, Aina
Iftimie, Simona
Garcia Pardo, Graciano
Calbo, Esther
Boix Palop, Lucía
Oriol, Isabel
Jover-Sáenz, Alfredo
López-Cortés, Luis Eduardo
Euba, Gorane
Aguirregabiria, Malen
Garcia-Pais, Maria Jose
Gioia, Francesca
Paño Pardo, José Ramón
Pedro-Botet Montoya, Ma Luisa
Benítez, Rosa M.
Pérez-Rodríguez, Maria Teresa
Meije, Yolanda
Loeches-Yagüe, Maria Belén
Horna, Gertrudis
Berbel, Dàmaris
Domínguez, María Ángeles
Padullés Zamora, Ariadna
Cobo Sacristán, Sara
Hereu, Pilar
Videla, Sebastià
Tebé, Cristian
Pallarès, Natàlia
Miró Meda, José M. (José María), 1956-
Pujol Rojo, Miquel
SAFO study group
Spanish Network for Research in Infectious Diseases (REIPI).
author Grillo, Sara
author_facet Grillo, Sara
Cuervo Requena, Guillermo
Carratalà, Jordi
Sanjuan, Rafael
Aguado, José María
Morata, Laura
Gómez-Zorrilla Martín, Silvia
López-Contreras, Joaquín
Gasch, Oriol
Gomila Grange, Aina
Iftimie, Simona
Garcia Pardo, Graciano
Calbo, Esther
Boix Palop, Lucía
Oriol, Isabel
Jover-Sáenz, Alfredo
López-Cortés, Luis Eduardo
Euba, Gorane
Aguirregabiria, Malen
Garcia-Pais, Maria Jose
Gioia, Francesca
Paño Pardo, José Ramón
Pedro-Botet Montoya, Ma Luisa
Benítez, Rosa M.
Pérez-Rodríguez, Maria Teresa
Meije, Yolanda
Loeches-Yagüe, Maria Belén
Horna, Gertrudis
Berbel, Dàmaris
Domínguez, María Ángeles
Padullés Zamora, Ariadna
Cobo Sacristán, Sara
Hereu, Pilar
Videla, Sebastià
Tebé, Cristian
Pallarès, Natàlia
Miró Meda, José M. (José María), 1956-
Pujol Rojo, Miquel
SAFO study group
Spanish Network for Research in Infectious Diseases (REIPI).
author_role author
author2 Cuervo Requena, Guillermo
Carratalà, Jordi
Sanjuan, Rafael
Aguado, José María
Morata, Laura
Gómez-Zorrilla Martín, Silvia
López-Contreras, Joaquín
Gasch, Oriol
Gomila Grange, Aina
Iftimie, Simona
Garcia Pardo, Graciano
Calbo, Esther
Boix Palop, Lucía
Oriol, Isabel
Jover-Sáenz, Alfredo
López-Cortés, Luis Eduardo
Euba, Gorane
Aguirregabiria, Malen
Garcia-Pais, Maria Jose
Gioia, Francesca
Paño Pardo, José Ramón
Pedro-Botet Montoya, Ma Luisa
Benítez, Rosa M.
Pérez-Rodríguez, Maria Teresa
Meije, Yolanda
Loeches-Yagüe, Maria Belén
Horna, Gertrudis
Berbel, Dàmaris
Domínguez, María Ángeles
Padullés Zamora, Ariadna
Cobo Sacristán, Sara
Hereu, Pilar
Videla, Sebastià
Tebé, Cristian
Pallarès, Natàlia
Miró Meda, José M. (José María), 1956-
Pujol Rojo, Miquel
SAFO study group
Spanish Network for Research in Infectious Diseases (REIPI).
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Malalties infeccioses
Microbiologia
Assaigs clínics
Communicable diseases
Microbiology
Clinical trials
topic Malalties infeccioses
Microbiologia
Assaigs clínics
Communicable diseases
Microbiology
Clinical trials
description Introduction: Methicillin-susceptible Staphylococcus aureus (MSSA) bacteraemia is a frequent condition, with high mortality rates. There is a growing interest in identifying new therapeutic regimens able to reduce therapeutic failure and mortality observed with the standard of care of beta-lactam monotherapy. In vitro and small-scale studies have found synergy between cloxacillin and fosfomycin against S. aureus. Our aim is to test the hypothesis that cloxacillin plus fosfomycin achieves higher treatment success than cloxacillin alone in patients with MSSA bacteraemia. Methods: We will perform a superiority, randomised, open-label, phase IV-III, two-armed parallel group (1:1) clinical trial at 20 Spanish tertiary hospitals. Adults (≥18 years) with isolation of MSSA from at least one blood culture ≤72 hours before inclusion with evidence of infection, will be randomly allocated to receive either cloxacillin 2 g/4-hour intravenous plus fosfomycin 3 g/6-hour intravenous or cloxacillin 2 g/4-hour intravenous alone for 7 days. After the first week, sequential treatment and total duration of antibiotic therapy will be determined according to clinical criteria by the attending physician. Primary endpoints: (1) Treatment success at day 7, a composite endpoint comprising all the following criteria: patient alive, stable or with improved quick-Sequential Organ Failure Assessment score, afebrile and with negative blood cultures for MSSA at day 7. (2) Treatment success at test of cure (TOC) visit: patient alive and no isolation of MSSA in blood culture or at another sterile site from day 8 until TOC (12 weeks after randomisation). We assume a rate of treatment success of 74% in the cloxacillin group. Accepting alpha risk of 0.05 and beta risk of 0.2 in a two-sided test, 183 subjects will be required in each of the control and experimental groups to obtain statistically significant difference of 12% (considered clinically significant). Ethics and dissemination: Ethical approval has been obtained from the Ethics Committee of Bellvitge University Hospital (AC069/18) and from the Spanish Medicines and Healthcare Product Regulatory Agency (AEMPS, AC069/18), and is valid for all participating centres under existing Spanish legislation. The results will be presented at international meetings and will be made available to patients and funders.
publishDate 2021
dc.date.none.fl_str_mv 2021
2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/198352
url https://hdl.handle.net/2445/198352
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1136/bmjopen-2021-051208
BMJ Open, 2021, vol. 11, num. 8, p. e051208
https://doi.org/10.1136/bmjopen-2021-051208
dc.rights.none.fl_str_mv cc-by (c) Grillo, Sara et al., 2021
https://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Grillo, Sara et al., 2021
https://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 20 p.
application/pdf
dc.publisher.none.fl_str_mv BMJ Publishing Group
publisher.none.fl_str_mv BMJ Publishing Group
dc.source.none.fl_str_mv Articles publicats en revistes (Patologia i Terapèutica Experimental)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling Multicentre, randomised, open-label, phase IV-III study to evaluate the efficacy of cloxacillin plus fosfomycin versus cloxacillin alone in adult patients with methicillin-susceptible Staphylococcus aureus bacteraemia: study protocol for the SAFO trialGrillo, SaraCuervo Requena, GuillermoCarratalà, JordiSanjuan, RafaelAguado, José MaríaMorata, LauraGómez-Zorrilla Martín, SilviaLópez-Contreras, JoaquínGasch, OriolGomila Grange, AinaIftimie, SimonaGarcia Pardo, GracianoCalbo, EstherBoix Palop, LucíaOriol, IsabelJover-Sáenz, AlfredoLópez-Cortés, Luis EduardoEuba, GoraneAguirregabiria, MalenGarcia-Pais, Maria JoseGioia, FrancescaPaño Pardo, José RamónPedro-Botet Montoya, Ma LuisaBenítez, Rosa M.Pérez-Rodríguez, Maria TeresaMeije, YolandaLoeches-Yagüe, Maria BelénHorna, GertrudisBerbel, DàmarisDomínguez, María ÁngelesPadullés Zamora, AriadnaCobo Sacristán, SaraHereu, PilarVidela, SebastiàTebé, CristianPallarès, NatàliaMiró Meda, José M. (José María), 1956-Pujol Rojo, MiquelSAFO study groupSpanish Network for Research in Infectious Diseases (REIPI).Malalties infecciosesMicrobiologiaAssaigs clínicsCommunicable diseasesMicrobiologyClinical trialsIntroduction: Methicillin-susceptible Staphylococcus aureus (MSSA) bacteraemia is a frequent condition, with high mortality rates. There is a growing interest in identifying new therapeutic regimens able to reduce therapeutic failure and mortality observed with the standard of care of beta-lactam monotherapy. In vitro and small-scale studies have found synergy between cloxacillin and fosfomycin against S. aureus. Our aim is to test the hypothesis that cloxacillin plus fosfomycin achieves higher treatment success than cloxacillin alone in patients with MSSA bacteraemia. Methods: We will perform a superiority, randomised, open-label, phase IV-III, two-armed parallel group (1:1) clinical trial at 20 Spanish tertiary hospitals. Adults (≥18 years) with isolation of MSSA from at least one blood culture ≤72 hours before inclusion with evidence of infection, will be randomly allocated to receive either cloxacillin 2 g/4-hour intravenous plus fosfomycin 3 g/6-hour intravenous or cloxacillin 2 g/4-hour intravenous alone for 7 days. After the first week, sequential treatment and total duration of antibiotic therapy will be determined according to clinical criteria by the attending physician. Primary endpoints: (1) Treatment success at day 7, a composite endpoint comprising all the following criteria: patient alive, stable or with improved quick-Sequential Organ Failure Assessment score, afebrile and with negative blood cultures for MSSA at day 7. (2) Treatment success at test of cure (TOC) visit: patient alive and no isolation of MSSA in blood culture or at another sterile site from day 8 until TOC (12 weeks after randomisation). We assume a rate of treatment success of 74% in the cloxacillin group. Accepting alpha risk of 0.05 and beta risk of 0.2 in a two-sided test, 183 subjects will be required in each of the control and experimental groups to obtain statistically significant difference of 12% (considered clinically significant). Ethics and dissemination: Ethical approval has been obtained from the Ethics Committee of Bellvitge University Hospital (AC069/18) and from the Spanish Medicines and Healthcare Product Regulatory Agency (AEMPS, AC069/18), and is valid for all participating centres under existing Spanish legislation. The results will be presented at international meetings and will be made available to patients and funders.BMJ Publishing Group2023202320212023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion20 p.application/pdfhttps://hdl.handle.net/2445/198352Articles publicats en revistes (Patologia i Terapèutica Experimental)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.1136/bmjopen-2021-051208BMJ Open, 2021, vol. 11, num. 8, p. e051208https://doi.org/10.1136/bmjopen-2021-051208cc-by (c) Grillo, Sara et al., 2021https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1983522026-05-29T05:05:01Z
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