Retrospective study on clinical efficacy and safety for daptomycin intermittent doses with or without loading dose in renal failure patients.

This retrospective study is to evaluate the efficacy and safety of daptomycin (DAP) intermittent doses and the effectiveness of DAP loading dose in renal failure patients received DAP intermittent doses. One hundred and ninety-seven patients received DAP for at least 3 days from 2014 to 2017. Clinical and microbiological outcomes and the safety were assessed. A total of 183 patients (93, 60 and 30 patients received DAP daily dose, every 48 h dose and thrice per week dose) were included. DAP intermittent doses, such as every 48 h dose (28.3%) and thrice per week dose (30.0%), showed significantly higher mortality rates than that of DAP daily dose (6.5%) (p = 0.0320). Especially for bacteremia patients, significantly higher mortality was admitted, compared with patients received DAP daily doses (p = 0.0160). Moreover, patients received DAP intermittent doses were admitted slower improvements of their inflammation after DAP therapy started, compared with patients received daily dose. Additionally, DAP loading dose for renal failure patients decreased their mortality and improved patients' inflammation early. Especially for patients received DAP thrice per week dose, they showed significantly lower mortality than patients received non-loading dose (p = 0.0306). Additionally, these clinical enhancements of DAP therapy with loading dose were admitted without any enhancements of its adverse effect risks, except alkaline phosphatase elevation, compared with non-loading dose. In conclusion, DAP intermittent doses showed poor clinical outcomes, compared with daily dose. Then, DAP loading dose would be better clinical option for patients received DAP intermittent doses.

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Copyright © 2019 Japanese Society of Chemotherapy and The Japanese Association for Infectious Diseases. Published by Elsevier Ltd. All rights reserved.