Abstract
Purpose
For critically ill patients undergoing continuous renal replacement therapy (CRRT), daptomycin dosing recommendations are scarce. We, therefore, retrospectively assessed routinely measured daptomycin plasma concentrations, daptomycin dose administered and microbiological data in 11 critically ill patients with Gram-positive infections that had received daptomycin once daily.
Methods
The retrospective analysis included critically ill patients treated at the intensive care unit (ICU) who had daptomycin plasma concentrations measured.
Results
Daptomycin dose ranged from 3 to 8 mg/kg/q24 h in patients undergoing CRRT (n = 7) and 6 to 10 mg/kg/q24 h in patients without CRRT (n = 4). Peak and trough concentrations showed a high intra- and inter-patient variability in both groups, independent of the dosage per kg body weight. No drug accumulation was detected in CRRT patients with once-daily daptomycin dosing. Causative pathogens were Enterococcus faecium (n = 6), coagulase-negative Staphylococcus (n = 2), Staphylococcus aureus (n = 2) and unknown in one patient. Microbiological eradication was successful in 8 of 11 patients. Two of three patients with unsuccessful microbiological eradication and fatal outcome had an Enterococcus faecium infection.
Conclusion
In critically ill patients undergoing CRRT, daptomycin exposure with once-daily dosing was similar to ICU patients with normal renal function, but lower compared to healthy volunteers. Our data suggest that daptomycin once-daily dosing is appropriate in patients undergoing CRRT.
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Conflict of interest
Dr. Corti was on the advisory board for Novartis, Basel, Switzerland. Drs. Preiswerk, Rudiger and Fehr have not disclosed any potential conflicts of interest.
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Preiswerk, B., Rudiger, A., Fehr, J. et al. Experience with daptomycin daily dosing in ICU patients undergoing continuous renal replacement therapy. Infection 41, 553–557 (2013). https://doi.org/10.1007/s15010-012-0300-3
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DOI: https://doi.org/10.1007/s15010-012-0300-3