Daptomycin plus fosfomycin versus daptomycin alone for methicillin-resistant staphylococcus aureus bacteremia and endocarditis: a randomized clinical trial
Background. We aimed to determine whether daptomycin plus fosfomycin provides higher treatment success than daptomycin alone for methicillin-resistant Staphylococcus aureus (MRSA) bacteremia and endocarditis.Methods. A randomized (1:1) phase 3 superiority, open-label, and parallel group clinical tri...
| Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Universitat de Lleida (UdL) |
| Repositorio: | Repositori Obert UdL |
| OAI Identifier: | oai:repositori.udl.cat:10459.1/73000 |
| Acceso en línea: | https://doi.org/10.1093/cid/ciaa1081 http://hdl.handle.net/10459.1/73000 |
| Access Level: | acceso abierto |
| Palabra clave: | MRSA Bacteremia Daptomycin Fosfomycin Clinical trial |
| Sumario: | Background. We aimed to determine whether daptomycin plus fosfomycin provides higher treatment success than daptomycin alone for methicillin-resistant Staphylococcus aureus (MRSA) bacteremia and endocarditis.Methods. 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 intra-venously 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.Results. 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 bac-teremia (16.2% vs 32.1%; P = .022). Adverse events leading to treatment discontinuation occurred in 13 of 74 patients (17.6%) re-ceiving daptomycin plus fosfomycin, and in 4 of 81 patients (4.9%) receiving daptomycin alone (P = .018).Conclusions. Daptomycin plus fosfomycin provided 12% higher rate of treatment success than daptomycin alone, but this dif-ference did not reach statistical significance. This antibiotic combination prevented microbiological failure and complicated bacte-remia, but it was more often associated with adverse events |
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