Population Pharmacokinetics of Adjunctive Lacosamide in Pediatric Patients With Epilepsy.

Abstract:

:A pediatric population pharmacokinetic model including covariate effects was developed using data from 2 clinical trials in pediatric patients with epilepsy (SP0847 and SP1047). Lacosamide plasma concentration-time data (n = 402) were available from 79 children with body weights ranging from 6 to 76 kg, and a balanced age distribution (6 months to <2 years: n = 14; 2 to <6 years: n = 22; 6 to <12 years: n = 25; 12 to <18 years: n = 18). A single-compartment population pharmacokinetic model with first-order absorption and elimination described the data adequately. Plasma clearance was modeled using allometric scaling on body weight with a freely estimated allometric exponent, while volume of distribution used a fixed theoretical allometric exponent. Covariate search identified a significant effect of enzyme-inducing antiepileptic drugs resulting in a 35% decrease in lacosamide average plasma concentration. No additional effects on clearance could be attributed to race, sex, age, or renal function. Different dosing adaptation schemes by body weight bands were simulated to approximate, in pediatric patients aged 4 to 17 years, the same average plasma concentration as in adult patients receiving the maximum recommended lacosamide daily dose.

journal_name

J Clin Pharmacol

authors

Winkler J,Schoemaker R,Stockis A

doi

10.1002/jcph.1340

subject

Has Abstract

pub_date

2019-04-01 00:00:00

pages

541-547

issue

4

eissn

0091-2700

issn

1552-4604

journal_volume

59

pub_type

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