Journal Article

Randomized Efficacy and Safety Trial with Oral S 44819 after Recent ischemic cerebral Event (RESTORE BRAIN study): a placebo controlled phase II study

Sors, Aurore, Picarel-Blanchot, Françoise, Chabriat, Hugues, Marx, Ute, Gruget, Celine, Bassetti, Claudio L., Saba, Barbara, Audoli, Marie-Laure, Hermann, Dirk M., Wattez, Marine

2020

Overview

Background The GABA A -α5 receptor antagonist S44819 is a promising candidate to enhance functional recovery after acute ischemic stroke (IS). S44819 is currently evaluated in this indication; RESTORE brain study started in Dec 2016 and was completed in March 2019. Methods/design The study is a 3-month international, randomized, double-blind, parallel group, placebo-controlled phase II multicentre study. Patients in 14 countries who suffered an IS leading to a moderate or severe deficit defined by NIHSS score ranging from 7 to 20 and are aged between 18 to 85 years are included between 3 and 8 days after the stroke onset. Approximately 580 patients are to be included. The primary objective of the study is to demonstrate the superiority of at least one of the two doses of S44819 (150 or 300 mg bid) compared to placebo on top of usual care on functional recovery measured with the modified Rankin scale at 3 months. Comparisons between two doses of S44819 and placebo are assessed with ordinal logistic regression evaluating the odds of shifting from one category to the next in the direction of a better outcome at day 90. Secondary objectives include the evaluation of S44819 effects on neurological examination using the National Institute of Health Stroke Scale total score, activities of daily living using the Barthel Index total score, and cognitive performance using the Montreal Cognitive Assessment scale total score and Trail Making Test times. Safety and tolerability of the two doses of S44819 will also be analyzed. Discussion The RESTORE BRAIN study might represent the first proof of concept study of an innovative therapeutic approach that is primarily based on enhancing functional recovery after IS. Trial registration Randomized Efficacy and Safety Trial with Oral S 44819 after Recent ischemic cerebral Event, an international, multi-centre, randomized, double-blind placebo-controlled phase II study. ClinicalTrials.gov, NCT02877615 ; Eudract 2016–001005-16. Registered 24 August 2016

• Publisher: BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
• Subject: Activities of Daily Living / Adolescent / Adult / Aged / Aged, 80 and over / Analysis / Benzodiazepines - administration & dosage / Benzodiazepines - adverse effects / Biomedicine / Brain / Brain Ischemia - drug therapy / Double-Blind Method / Efficacy / Female / GABA / GABA-A Receptor Antagonists - administration & dosage / GABA-A Receptor Antagonists - adverse effects / Health Sciences / Humans / Intracranial Hemorrhages - drug therapy / Ischemia / Ischemic cerebral stroke / Male / Medical imaging / Medical research / Medicine / Medicine & Public Health / Mental Status and Dementia Tests / Middle Aged / Neuroimaging / Neurologic examination / Oxazoles - administration & dosage / Oxazoles - adverse effects / Patient safety / Recovery of Function - drug effects / Rehabilitation / Respiratory system agents / S44819 / Safety / Statistics for Life Sciences / Stroke / Stroke - drug therapy / Study design / Study Protocol / Suicides & suicide attempts / Transcranial magnetic stimulation / Treatment Outcome / Young Adult