Population Pharmacokinetics of Valproic Acid in Pediatric and Adult Caucasian Patients
In: Pharmaceutics, Jg. 14 (2022-04-01), Heft 4, S. 811
Online
academicJournal
Zugriff:
(1) Background: The aim of this study was to explore the valproic acid (VPA) pharmacokinetic characteristics in a large population of pediatric and adult Caucasian patients and to establish a robust population pharmacokinetic (PopPK) model. (2) Methods: A total of 2527 serum VPA samples collected from 1204 patients included in a therapeutic drug monitoring program were retrospectively analyzed. Patients were randomly assigned to either a model development group or an external evaluation group. PopPK analysis was performed on 1751 samples from 776 patients with NONMEM using a nonlinear mixed-effect modelling approach. The influence of demographic, anthropometric, treatment and comedication variables on the apparent clearance (CL/F) of VPA was studied. The bootstrap method was used to evaluate the final model internally. External evaluation was carried out using 776 VPA serum samples from 368 patients. (3) Results: A one-compartment model with first-order absorption and elimination successfully described the data. The final model included total body weight, age and comedication with phenytoin, phenobarbital and carbamazepine with a significant impact on VPA elimination. Internal and external evaluations demonstrated the good predictability of the model. (4) Conclusions: A PopPK model of VPA in Caucasian patients was successfully established, which will be helpful for model-informed precision dosing approaches in clinical patient care.
Titel: |
Population Pharmacokinetics of Valproic Acid in Pediatric and Adult Caucasian Patients
|
---|---|
Autor/in / Beteiligte Person: | Teixeira-da-Silva, Paulo ; Jonás Samuel Pérez-Blanco ; Santos-Buelga, Dolores ; María José Otero ; María José García |
Link: | |
Zeitschrift: | Pharmaceutics, Jg. 14 (2022-04-01), Heft 4, S. 811 |
Veröffentlichung: | MDPI AG, 2022 |
Medientyp: | academicJournal |
ISSN: | 1999-4923 (print) |
DOI: | 10.3390/pharmaceutics14040811 |
Schlagwort: |
|
Sonstiges: |
|