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Evaluation of an optimized intermittent vancomycin dosing regimen in infants
Amanda L Wilkins1,2,3, Wenyu Yang4, Stephen B Duffull5
1Department of General Medicine, The Royal Children's Hospital Melbourne, Parkville, Victoria, Australia.
The Journal of Antimicrobial Chemotherapy
|April 4, 2025
Summary
This study optimized vancomycin dosing for infants, achieving target therapeutic levels in 88% of cases. The new regimen is recommended for routine clinical use in neonates and young infants.
Area of Science:
- Pharmacology
- Pediatrics
- Clinical Pharmacy
Background:
- Standard vancomycin dosing in infants often fails to reach therapeutic targets.
- Population pharmacokinetic (popPK) modeling is crucial for optimizing drug regimens in pediatric populations.
Purpose of the Study:
- To develop and clinically evaluate an optimized vancomycin dosing regimen for infants aged 0-90 days.
- To achieve a target area under the curve (AUC24) of 400-650 mg/L·h.
Main Methods:
- Developed an optimized vancomycin dosing regimen using a published popPK model.
- Simulated probability of target attainment (PTA) for AUC24 and trough concentrations.
- Clinically evaluated the regimen in infants aged 0-90 days over 12 months.
Main Results:
- The optimized regimen achieved the target AUC24 in 88% of infant courses.
- 81% of courses achieved the target trough concentration of 10-20 mg/L.
- No cases of nephrotoxicity or ototoxicity were observed during the evaluation.
Conclusions:
- The optimized vancomycin dosing regimen significantly improves therapeutic target attainment in infants.
- This regimen is effective and safe, warranting consideration for routine use in neonates and young infants.
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