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Gentamicin Population Pharmacokinetics in Pediatric Patients-A Prospective Study with Data Analysis Using the saemix Package in R.
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
ID 4627283
Author(s) Paioni, Paolo; Jäggi, Vera F; Tilen, Romy; Seiler, Michelle; Baumann, Philipp; Bräm, Dominic S; Jetzer, Carole; Haid, Robin T U; Goetschi, Aljoscha N; Goers, Roland; Müller, Daniel; Coman Schmid, Diana; Meyer Zu Schwabedissen, Henriette E; Rinn, Bernd; Berger, Christoph; Krämer, Stefanie D
Author(s) at UniBasel Meyer zu Schwabedissen, Henriette
Tilen, Romy
Goers, Roland
Year 2021
Title Gentamicin Population Pharmacokinetics in Pediatric Patients-A Prospective Study with Data Analysis Using the saemix Package in R.
Journal Pharmaceutics
Volume 13
Number 10
Pages / Article-Number 1596
Keywords R-project; dosing regimen; gentamicin; non-linear mixed-effects modeling; open-source; population pharmacokinetics; saemix

The aminoglycoside gentamicin is used for the empirical treatment of pediatric infections. It has a narrow therapeutic window. In this prospective study at University Children's Hospital Zurich, Switzerland, we aimed to characterize the pharmacokinetics of gentamicin in pediatric patients and predict plasma concentrations at typical recommended doses. We recruited 109 patients aged from 1 day to 14 years, receiving gentamicin (7.5 mg/kg at age ≥ 7 d or 5 mg/kg). Plasma levels were determined 30 min, 4 h and 24 h after the infusion was stopped and then transferred, together with patient data, to the secure BioMedIT node Leonhard Med. Population pharmacokinetic modeling was performed with the open-source R package saemix on the; SwissPK; cdw; platform in Leonhard Med. Data followed a two-compartment model. Bodyweight, plasma creatinine and urea were identified as covariates for clearance, with bodyweight as a covariate for central and peripheral volumes of distribution. Simulations with 7.5 mg/kg revealed a 95% CI of 13.0-21.2 mg/L plasma concentration at 30 min after the stopping of a 30-min infusion. At 24 h, 95% of simulated plasma levels were <1.8 mg/L. Our study revealed that the recommended dosing is appropriate. It showed that population pharmacokinetic modeling using R provides high flexibility in a secure environment.

ISSN/ISBN 1999-4923
Full Text on edoc
Digital Object Identifier DOI 10.3390/pharmaceutics13101596
PubMed ID

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