Pharmacokinetics of Clindamycin in Obese and Nonobese Children.

Abstract:

:Although obesity is prevalent among children in the United States, pharmacokinetic (PK) data for obese children are limited. Clindamycin is a commonly used antibiotic that may require dose adjustment in obese children due to its lipophilic properties. We performed a clindamycin population PK analysis using data from three separate trials. A total of 420 samples from 220 children, 76 of whom had a body mass index greater than or equal to the 95th percentile for age, were included in the analysis. Compared to other metrics, total body weight (TBW) was the most robust measure of body size. The final model included TBW and a sigmoidal maturation relationship between postmenstrual age (PMA) and clearance (CL): CL (liters/hour) = 13.8 × (TBW/70)0.75 × [PMA2.83/(39.52.83+PMA2.83)]; volume of distribution (V) was associated with TBW, albumin (ALB), and alpha-1 acid glycoprotein (AAG): V (liters) = 63.6 × (TBW/70) × (ALB/3.3)-0.83 × (AAG/2.4)-0.25 After accounting for differences in TBW, obesity status did not explain additional interindividual variability in model parameters. Our findings support TBW-based dosing for obese and nonobese children.

authors

Smith MJ,Gonzalez D,Goldman JL,Yogev R,Sullivan JE,Reed MD,Anand R,Martz K,Berezny K,Benjamin DK Jr,Smith PB,Cohen-Wolkowiez M,Watt K,Best Pharmaceuticals for Children Act—Pediatric Trials Network Steering Committee.

doi

10.1128/AAC.02014-16

subject

Has Abstract

pub_date

2017-03-24 00:00:00

issue

4

eissn

0066-4804

issn

1098-6596

pii

AAC.02014-16

journal_volume

61

pub_type

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