Abstract
Background: Dalfampridine has the potential to be effective in patients with transverse myelitis (TM) as this rare disorder shares some clinical and pathogenic similarities with multiple sclerosis. Methods: This is a randomized, double-blind, placebo-controlled crossover study of dalfampridine extended-release (D-ER, Ampyra). Sixteen adult study participants with monophasic TM confirmed by MRI were enrolled if their baseline timed 25-foot walking speed was between 5 and 60 seconds. Participants were randomized to receive 10 mg twice-daily doses of either D-ER or placebo control for eight weeks, then crossed over to the second arm of placebo or dalfampridine for eight weeks. The primary outcome measure was the timed 25-foot walk. Results: Of 16 enrolled participants, three withdrew and 13 completed the trial. Among the 13 completers, nine individuals showed an average timed walk that was faster in the D-ER arm compared to the placebo arm, but only four participants met the stricter statistical threshold to be classified as a responder. Analyses of secondary clinical outcome measures including strength, balance assessments, spasticity, and Expanded Disability Status Scale (EDSS) score showed trends toward improvement with D-ER. Conclusions: D-ER may be beneficial in TM to improve walking speed and other neurological functions.
Original language | English (US) |
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Journal | Multiple Sclerosis Journal - Experimental, Translational and Clinical |
Volume | 3 |
Issue number | 4 |
DOIs | |
State | Published - Oct 1 2017 |
Keywords
- 4-aminopyridine
- 4AP
- Ampyra
- Dalfampridine
- Transverse myelitis
ASJC Scopus subject areas
- Clinical Neurology
- Cellular and Molecular Neuroscience