Longitudinal Impact of Acute Spinal Cord Injury on Clinical Pharmacokinetics of Riluzole, a Potential Neuroprotective Agent

Autor: Diana S.-L. Chow, James D. Guest, Michele M. Johnson, Robert G. Grossman, Karl M. Schmitt, Christopher I. Shaffrey, Mahua Sarkar, Yang Angela Teng, James S. Harrop, Elizabeth G. Toups, Maxwell Boakye, Michael G. Fehlings, Ralph F. Frankowski, Ashley Nguyen, Lei Wu, Bizhan Aarabi
Rok vydání: 2021
Předmět:
Zdroj: Journal of Clinical Pharmacology
ISSN: 1552-4604
Popis: Riluzole, a benzothiazole sodium channel blocker that received FDA approval to attenuate neurodegeneration in amyotrophic lateral sclerosis (ALS) in 1995, was found to be safe and potentially efficacious in a spinal cord injury (SCI) population as evident in a Phase I clinical trial. The acute and progressive nature of traumatic SCI and the complexity of secondary injury processes can alter the pharmacokinetics of therapeutics. A one-compartment with first-order elimination population pharmacokinetic model for riluzole incorporating time-dependent clearance and volume of distribution was developed from combined data of the Phase I and the ongoing Phase II/III trials. This change in therapeutic exposure may lead to a biased estimate of the exposure-response relationship when evaluating therapeutic effects. With the developed model, a rational, optimal dosing scheme can be designed with time-dependent modification that preserves the required therapeutic exposure of riluzole. This article is protected by copyright. All rights reserved.
Databáze: OpenAIRE