AUTHOR=Lingor Paul , Weber Markus , Camu William , Friede Tim , Hilgers Reinhard , Leha Andreas , Neuwirth Christoph , Günther René , Benatar Michael , Kuzma-Kozakiewicz Magdalena , Bidner Helen , Blankenstein Christiane , Frontini Roberto , Ludolph Albert , Koch Jan C. , The ROCK-ALS Investigators , Attarian Shahram , Bähr Mathias , Boentert Matthias , Braun Nathalie , Corcia Philippe , Cordts Isabell , Deschauer Marcus , Grehl Thorsten , Grosskreutz Julian , Hermann Andreas , Kuttler Josua , Lengenfeldt Teresa , Maass Fabian , Meyer Thomas , Petri Susanne , Remane Yvonne , Schmidt Jens , Schuster Joachim , Soriani Marie-Hélène , Statland Jeffrey , Weishaupt Jochen , Zeller Daniel , Zielke Eirini TITLE=ROCK-ALS: Protocol for a Randomized, Placebo-Controlled, Double-Blind Phase IIa Trial of Safety, Tolerability and Efficacy of the Rho Kinase (ROCK) Inhibitor Fasudil in Amyotrophic Lateral Sclerosis JOURNAL=Frontiers in Neurology VOLUME=10 YEAR=2019 URL=https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2019.00293 DOI=10.3389/fneur.2019.00293 ISSN=1664-2295 ABSTRACT=

Objectives: Disease-modifying therapies for amyotrophic lateral sclerosis (ALS) are still not satisfactory. The Rho kinase (ROCK) inhibitor fasudil has demonstrated beneficial effects in cell culture and animal models of ALS. For many years, fasudil has been approved in Japan for the treatment of vasospasm in patients with subarachnoid hemorrhage with a favorable safety profile. Here we describe a clinical trial protocol to repurpose fasudil as a disease-modifying therapy for ALS patients.

Methods: ROCK-ALS is a multicenter, double-blind, randomized, placebo-controlled phase IIa trial of fasudil in ALS patients (EudraCT: 2017-003676-31, NCT: 03792490). Safety and tolerability are the primary endpoints. Efficacy is a secondary endpoint and will be assessed by the change in ALSFRS-R, ALSAQ-5, slow vital capacity (SVC), ECAS, and the motor unit number index (MUNIX), as well as survival. Efficacy measures will be assessed before (baseline) and immediately after the infusion therapy as well as on days 90 and 180. Patients will receive a daily dose of either 30 or 60 mg fasudil, or placebo in two intravenous applications for a total of 20 days. Regular assessments of safety will be performed throughout the treatment period, and in the follow-up period until day 180. Additionally, we will collect biological fluids to assess target engagement and evaluate potential biomarkers for disease progression. A total of 120 patients with probable or definite ALS (revised El Escorial criteria) and within 6–18 months of the onset of weakness shall be included in 16 centers in Germany, Switzerland and France.

Results and conclusions: The ROCK-ALS trial is a phase IIa trial to evaluate the ROCK-inhibitor fasudil in early-stage ALS-patients that started patient recruitment in 2019.