Establishment and application of population pharmacokinetics model of vancomycin in infants with meningitis

Pediatr Neonatol. 2022 Jan;63(1):57-65. doi: 10.1016/j.pedneo.2021.06.018. Epub 2021 Sep 2.

Abstract

Background: To establish a population pharmacokinetics (PPK) model of vancomycin (VCM) for dose individualization in Chinese infants with meningitis.

Methods: We collected the data of 82 children with meningitis in hospital from July 2014 to June 2016. The initial vancomycin dosage regimen for children was 10 or 15 mg/kg for q12 h, q8 h or q6 h. Serum concentrations were determined by Viva-E Analyzer before and after the fifth administration. The PPK model was developed by nonlinear mixed-effect model software, assessed by the bootstrap method and then tested in 20 infant patients.

Results: The VCM clearance (CL) was increased by body weight (WT) and decreased by blood urea nitrogen (BUN). Pharmacokinetic parameters of VCM were not influenced by co-administered drugs. The trough concentrations of VCM were accurately predicted by the PPK model, with the prediction errors less than 32%.

Conclusion: A new individual strategy for VCM regimens was proposed and validated by the PPK model.

Keywords: NONMEM; infants; meningitis; population pharmacokinetics; vancomycin.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Anti-Bacterial Agents
  • Asian People
  • Child
  • Humans
  • Infant
  • Meningitis*
  • Nonlinear Dynamics
  • Vancomycin* / pharmacokinetics

Substances

  • Anti-Bacterial Agents
  • Vancomycin