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Multiplex Therapeutic Drug Monitoring by Isotope-dilution HPLC-MS/MS of Antibiotics in Critical Illnesses
Published on: August 30, 2018
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Evaluation of Individualized Cefepime Dosing Strategy Using Population Pharmacokinetics
Yoonsun Mo1,2, Natalia Shcherbakova3, Kelsey L Inman4
1Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, New York, USA.
Journal of Clinical Pharmacology
|September 20, 2021
Summary
Population pharmacokinetics (PK) optimized cefepime dosing improved clinical cure rates in patients with hospital-acquired pneumonia (HAP) or ventilator-associated pneumonia (VAP). This PK dosing strategy is effective and safe for treating these infections.
Area of Science:
- Pharmacology
- Infectious Diseases
- Critical Care Medicine
Background:
- Increasing prevalence of resistant gram-negative organisms necessitates optimized antibiotic strategies.
- Cefepime is a critical antibiotic for treating hospital-acquired pneumonia (HAP) and ventilator-associated pneumonia (VAP).
- Traditional cefepime dosing may not achieve optimal therapeutic concentrations in all patients.
Purpose of the Study:
- To compare the efficacy of population pharmacokinetic (PK) guided cefepime dosing versus traditional dosing in HAP/VAP patients.
- To evaluate clinical improvement and cure rates between the two dosing strategies.
- To assess the safety and effectiveness of PK-optimized cefepime dosing.
Main Methods:
- Retrospective study comparing PK-guided dosing (intervention) with traditional dosing (control).
- Inclusion criteria: Adult hospitalized patients with HAP or VAP receiving cefepime for ≥72 hours.
- Data collected on clinical improvement at day 7 and clinical cure rates.
Main Results:
- No significant difference in clinical improvement at day 7 (72% vs 70%, P = .8110).
- Significantly higher clinical cure rate in the PK-guided dosing group (50% vs 36.5%, P = .0034).
- PK-guided cefepime dosing demonstrated a favorable safety profile.
Conclusions:
- Population PK-guided cefepime dosing is an effective strategy for improving clinical cure rates in HAP/VAP patients.
- This optimized dosing approach offers a novel and safe alternative to traditional methods.
- PK-based dosing enhances cefepime efficacy against challenging gram-negative infections.
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