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Published on: August 30, 2018
Daptomycin serum levels in critical patients undergoing continuous renal replacement
Marco Falcone1, Alessandro Russo, Maria Iris Cassetta
1Departmert of Public Health and Infectious Diseases, University of Rome ‘Sapienza’, Italy.
Journal of Chemotherapy (Florence, Italy)
|November 28, 2012
Summary
Daptomycin dosing may need adjustment in patients on continuous renal replacement therapy (CRRT). Critically ill patients, especially those on continuous venovenous hemodiafiltration (CVVHDF), may require higher daptomycin doses due to lower drug levels.
Area of Science:
- Pharmacology
- Nephrology
- Critical Care Medicine
Background:
- Daptomycin pharmacokinetics are not well-established in patients receiving continuous renal replacement therapy (CRRT).
- Understanding drug behavior during CRRT is crucial for effective treatment in critically ill patients.
Purpose of the Study:
- To investigate the pharmacokinetics and clinical outcomes of daptomycin therapy in patients undergoing CRRT.
- To assess the impact of different CRRT modalities on daptomycin levels.
Main Methods:
- Collected pharmacokinetic and clinical data from patients on CRRT receiving daptomycin.
- Measured daptomycin plasma concentrations using isocratic high-performance liquid chromatography (HPLC).
- Analyzed data from patients undergoing continuous venovenous hemodialysis (CVVHD) and continuous venovenous hemodiafiltration (CVVHDF).
Main Results:
- Patients undergoing CVVHDF exhibited significantly lower mean area under the concentration-time curve (AUC(0-24)) and maximum concentration (Cmax) values compared to CVVHD.
- A notable decrease in plasma daptomycin levels was observed in one CVVHDF patient utilizing high cut-off hemofilters.
- These findings suggest increased drug clearance or sequestration during specific CRRT configurations.
Conclusions:
- Higher doses of daptomycin may be necessary for critically ill patients undergoing CRRT, particularly those on CVVHDF.
- The type of hemofilter used in CRRT can influence daptomycin levels.
- Further research is warranted to optimize daptomycin dosing strategies in this patient population.
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