Trial reportAnnals of clinical and translational neurology2022
Mexiletine in spinal and bulbar muscular atrophy: a randomized controlled trial.
Trial report in Annals of clinical and translational neurology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
5 citing papers in PubMed, 6 citations in OpenAlex.
- Temperature-induced symptoms in adolescents and adults with spinal muscular atrophy.Journal of neuromuscular diseases · 2026Article
- Therapeutic advances in spinal muscular atrophy: a review of clinical, safety, and economic considerations.Frontiers in pharmacology · 2026Review
- Assessing the Safety and Efficacy of Lamotrigine as Anti-myotonic Agent in Myotonic Dystrophy Type 1 (DM1): A Longitudinal, Open-Label, Pilot Study.Neurology and therapy · 2025Article
- Dysregulated synaptic gene expression in oligodendrocytes of spinal and bulbar muscular atrophy.JCI insight · 2025Article
- Novel Therapeutic Approaches in Inherited Neuropathies: A Systematic Review.Pharmaceutics · 2023Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivePatients with spinal and bulbar muscular atrophy (SBMA) often experience muscular weakness under cold exposure.
methodsIn our previously conducted observational study, we assessed nerve conduction and grip strength to examine the effect of cold exposure on motor function, based on which we conducted a randomized controlled trial to evaluate the efficacy and safety of mexiletine hydrochloride in SBMA (MEXPRESS).
resultsIn the observational study, 51 consecutive patients with SBMA and 18 healthy controls (HCs) were enrolled. Of the patients with SBMA, 88.0% experienced cold paresis. Patients with SBMA exhibited greater prolongation of ulnar nerve distal latency under cold (SBMA, 5.6 ± 1.1 msec; HC, 4.3 ± 0.6 msec; p <0.001); the change in the distal latencies between room temperature and cold exposure conditions correlated with the change in grip power. In the MEXPRESS trial, 20 participants took mexiletine or lactose, three times a day for 4 weeks with a crossover design. There was no difference in distal latencies at room temperature and under cold exposure between mexiletine and placebo groups as the primary endpoint. However, tongue pressure and 10-sec grip and release test under cold exposure were improved in the mexiletine group. There were no serious adverse events throughout the study period.
interpretationCold paresis is common and associated with prolongation of distal latency in SBMA. The results of the phase II clinical trial revealed that mexiletine showed short-term safety, but it did not restore cold exposure-induced prolongation of distal latency.
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Registered trials
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