Individualising Netilmicin Dosing in Neonates

Catherine M.T. Sherwin, Roland S. Broadbent, Natalie J. Medlicott, David M. Reith

Research output: Contribution to journalArticlepeer-review

Abstract

<p> <dl id="x-x-x-citationFields"> <dd> PURPOSE: The aim of this study was develop an optimal dosingregimen for netilmicin in neonates. METHODS: This was a population pharmacokinetic study in 97 neonates aged from 2 to 28 days after the due date who were being treated with netilmicin for suspected sepsis. The model was used to simulate dosing regimens. RESULTS: The principle factors influencing netilmicin clearance (CL) were postmenstrual age (PMA) and current body weight (CWT), and the principal determinant of volume of distribution (V) was CWT. The final covariate model was CL = 0.192 x (CWT/2)(1.35) x (PMA/40)(1.03), V = 1.5 x (CWT/2)(0.3). The optimal dosing was 5 mg/kg ever 36 h, 5 mg/kg every 24 h, 6 mg/kg every 24 h and 7 mg/kg every 24 h for neonates &lt; or =27, 28-30, 31-33 and &gt; or =34 weeks PMA, respectively. CONCLUSION: Individualisation of netilmicin dosing in neonates requires adjustment of dose by body weight, and dosing interval by both PMA and CWT. </dd> </dl></p>
Original languageEnglish
Pages (from-to)1201-1208
Number of pages8
JournalEuropean Journal of Clinical Pharmacology
Volume64
Issue number12
DOIs
StatePublished - Dec 2008
Externally publishedYes

ASJC Scopus Subject Areas

  • Pharmacology
  • Pharmacology (medical)

Keywords

  • Individualised dosing
  • Neonates
  • Netilmicin
  • Population pharmacokinetics
  • Research Support, Non-U.S. Gov't
  • Anti-Bacterial Agents / administration & dosage*
  • Anti-Bacterial Agents / pharmacokinetics
  • Anti-Bacterial Agents / therapeutic use
  • Apgar Score
  • Dose-Response Relationship, Drug
  • Drug Administration Schedule
  • Female
  • Gestational Age
  • Humans
  • Infant, Newborn
  • Infusions, Intravenous
  • Male
  • Medical Records
  • Metabolic Clearance Rate
  • Models, Biological
  • Netilmicin / administration & dosage*
  • Netilmicin / pharmacokinetics
  • Netilmicin / therapeutic use
  • Predictive Value of Tests
  • Retrospective Studies
  • Sepsis / drug therapy*
  • Sepsis / metabolism
  • Anti-Bacterial Agents

Disciplines

  • Pediatrics

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