Arimoclomol at dosages up to 300 mg/day is well tolerated and safe in amyotrophic lateral sclerosis Journal Article


Authors: Cudkowicz, Merit E; Shefner, Jeremy M; Simpson, Elizabeth; Grasso, Daniela; Yu, Hong; Zhang, Hui; Shui, Amy; Schoenfeld, David; Brown, Robert H; Wieland, Scott; Barber, Jack R; Northeast ALS Consortium
Article Title: Arimoclomol at dosages up to 300 mg/day is well tolerated and safe in amyotrophic lateral sclerosis
Alternate Title: Muscle & nerve
Keywords: Humans; Aged; Female; Male; Middle Aged; Dose-Response Relationship, Drug; Double-Blind Method; Blood-Brain Barrier; Hydroxylamines; Amyotrophic Lateral Sclerosis
Journal Title: Muscle & nerve
Volume: 38
Issue: 1
ISSN: 0148-639X
Publisher: John Wiley and Sons  
Date Published: 2008
Start Page: 837
End Page: 844
DOI/URL:
Notes: Arimoclomol is an investigational drug for amyotrophic lateral sclerosis (ALS) that amplifies heat shock protein gene expression during cell stress. The objectives of the present study were to assess the safety, tolerability, and pharmacokinetics of arimoclomol in ALS. Eighty-four participants with ALS received arimoclomol at one of three oral doses (25, 50, or 100 mg three times daily) or placebo. The primary outcome measure was safety and tolerability. A subset of 44 participants provided serum and cerebrospinal fluid (CSF) samples for pharmacokinetic analysis. Participants who completed 12 weeks of treatment could enroll in a 6-month open-label study. Arimoclomol at doses up to 300 mg/day was well tolerated and safe. Arimoclomol resulted in dose-linear pharmacologic exposures and the half-life did not change with continued treatment. Arimoclomol CSF levels increased with dose. Arimoclomol was shown to be safe, and it crosses the blood-brain barrier. Serum pharmacokinetic profiles support dosing of three times per day. An efficacy study in ALS is planned.
KUMC Authors
  1. April L. McVey
    42 McVey