RT Journal Article T1 Daptomycin Plus Fosfomycin Versus Daptomycin Alone for Methicillin-resistant Staphylococcus aureus Bacteremia and Endocarditis: A Randomized Clinical Trial. A1 Pujol, Miquel A1 Miró, José-María A1 Shaw, Evelyn A1 Aguado, Jose-María A1 San-Juan, Rafael A1 Puig-Asensio, Mireia A1 Pigrau, Carles A1 Calbo, Esther A1 Montejo, Miguel A1 Rodriguez-Álvarez, Regino A1 Garcia-Pais, María-Jose A1 Pintado, Vicente A1 Escudero-Sánchez, Rosa A1 Lopez-Contreras, Joaquín A1 Morata, Laura A1 Montero, Milagros A1 Andrés, Marta A1 Pasquau, Juan A1 Arenas, María-Del-Mar A1 Padilla, Belén A1 Murillas, Javier A1 Jover-Sáenz, Alfredo A1 López-Cortes, Luis-Eduardo A1 García-Pardo, Graciano A1 Gasch, Oriol A1 Videla, Sebastian A1 Hereu, Pilar A1 Tebé, Cristian A1 Pallarès, Natalia A1 Sanllorente, Mireia A1 Domínguez, María-Ángeles A1 Càmara, Jordi A1 Ferrer, Anna A1 Padullés, Ariadna A1 Cuervo, Guillermo A1 Carratalà, Jordi A1 MRSA Bacteremia (BACSARM) Trial Investigators, K1 MRSA K1 bacteremia K1 clinical trial K1 daptomycin K1 fosfomycin AB We aimed to determine whether daptomycin plus fosfomycin provides higher treatment success than daptomycin alone for methicillin-resistant Staphylococcus aureus (MRSA) bacteremia and endocarditis. A randomized (1:1) phase 3 superiority, open-label, and parallel group clinical trial of adult inpatients with MRSA bacteremia was conducted at 18 Spanish hospitals. Patients were randomly assigned to receive either 10 mg/kg of daptomycin intravenously daily plus 2 g of fosfomycin intravenously every 6 hours, or 10 mg/kg of daptomycin intravenously daily. Primary endpoint was treatment success 6 weeks after the end of therapy. Of 167 patients randomized, 155 completed the trial and were assessed for the primary endpoint. Treatment success at 6 weeks after the end of therapy was achieved in 40 of 74 patients who received daptomycin plus fosfomycin and in 34 of 81 patients who were given daptomycin alone (54.1% vs 42.0%; relative risk, 1.29 [95% confidence interval, .93-1.8]; P = .135). At 6 weeks, daptomycin plus fosfomycin was associated with lower microbiologic failure (0 vs 9 patients; P = .003) and lower complicated bacteremia (16.2% vs 32.1%; P = .022). Adverse events leading to treatment discontinuation occurred in 13 of 74 patients (17.6%) receiving daptomycin plus fosfomycin, and in 4 of 81 patients (4.9%) receiving daptomycin alone (P = .018). Daptomycin plus fosfomycin provided 12% higher rate of treatment success than daptomycin alone, but this difference did not reach statistical significance. This antibiotic combination prevented microbiological failure and complicated bacteremia, but it was more often associated with adverse events. NCT01898338. YR 2021 FD 2021 LK https://hdl.handle.net/10668/26334 UL https://hdl.handle.net/10668/26334 LA en DS RISalud RD Apr 17, 2025