Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

A Phase 2, Double-Blind, randomized, Dose-Ranging trial Of Reldesemtiv in patients with ALS

Shefner, J.M., Andrews, J.A., Genge, A., Jackson, C., Lechtzin, N., Miller, T.M., Cockroft, B.M., Meng, L., Wei, J., Wolff, A.A., Malik, F.I., Bodkin, C., Brooks, B.R., Caress, J., Dionne, A., Fee, D., Goutman, S.A., Goyal, N.A., Hardiman, O., Hayat, G., Heiman-Patterson, T., Heitzman, D., Henderson, R.D., Johnston, W., Karam, C., Kiernan, M.C., Kolb, S.J., Korngut, L., Ladha, S., Matte, G., Mora, J.S., Needham, M., Oskarsson, B., Pattee, G.L., Pioro, E.P., Pulley, M., Quan, D., Rezania, K., Schellenberg, K.L., Schultz, D., Shoesmith, C., Simmons, Z., Statland, J., Sultan, S., Swenson, A., Berg, L.H.V.D., Vu, T., Vucic, S., Weiss, M., Whyte-Rayson, A., Wymer, J., Zinman, L. and Rudnicki, S.A. (2020) A Phase 2, Double-Blind, randomized, Dose-Ranging trial Of Reldesemtiv in patients with ALS. Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration, 22 (3-4). pp. 287-299.

PDF - Published Version
Download (1MB) | Preview
Free to read:
*No subscription required


To evaluate safety, dose response, and preliminary efficacy of reldesemtiv over 12 weeks in patients with amyotrophic lateral sclerosis (ALS). Methods: Patients (≤2 years since diagnosis) with slow upright vital capacity (SVC) of ≥60% were randomized 1:1:1:1 to reldesemtiv 150, 300, or 450 mg twice daily (bid) or placebo; active treatment was 12 weeks with 4-week follow-up. Primary endpoint was change in percent predicted SVC at 12 weeks; secondary measures included ALS Functional Rating Scale-Revised (ALSFRS-R) and muscle strength mega-score. Results: Patients (N = 458) were enrolled; 85% completed 12-week treatment. The primary analysis failed to reach statistical significance (p = 0.11); secondary endpoints showed no statistically significant effects (ALSFRS-R, p = 0.09; muscle strength mega-score, p = 0.31). Post hoc analyses pooling all active reldesemtiv-treated patients compared against placebo showed trends toward benefit in all endpoints (progression rate for SVC, ALSFRS-R, and muscle strength mega-score (nominal p values of 0.10, 0.01 and 0.20 respectively)). Reldesemtiv was well tolerated, with nausea and fatigue being the most common side effects. A dose-dependent decrease in estimated glomerular filtration rate was noted, and transaminase elevations were seen in approximately 5% of patients. Both hepatic and renal abnormalities trended toward resolution after study drug discontinuation. Conclusions: Although the primary efficacy analysis did not demonstrate statistical significance, there were trends favoring reldesemtiv for all three endpoints, with effect sizes generally regarded as clinically important. Tolerability was good; modest hepatic and renal abnormalities were reversible. The impact of reldesemtiv on patients with ALS should be assessed in a pivotal Phase 3 trial. ( Identifier: NCT03160898)

Item Type: Journal Article
Publisher: Informa UK Limited, trading as Taylor & Francis Group
Copyright: © 2020 The Authors.
Item Control Page Item Control Page


Downloads per month over past year