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  • Title: Safety and efficacy of ADS-5102 (amantadine) extended release capsules to improve walking in multiple sclerosis: A randomized, placebo-controlled, phase 2 trial.
    Author: Cohen JA, Hunter SF, Brown TR, Gudesblatt M, Thrower BW, Llorens L, Souza-Prien CJ, Ruby AE, Chernoff DN, Patni R.
    Journal: Mult Scler; 2019 Apr; 25(4):601-609. PubMed ID: 29368539.
    Abstract:
    BACKGROUND: Walking impairment causes disability and reduced quality of life in patients with multiple sclerosis (MS). OBJECTIVE: Characterize the safety and efficacy of ADS-5102 (amantadine) extended release capsules, 274 mg administered once daily at bedtime in patients with MS with walking impairment. METHODS: This randomized, double-blind, placebo-controlled, 4-week study was conducted at 14 trial sites in the United States. Study objectives included safety and tolerability of ADS-5102, and efficacy assessments (Timed 25-Foot Walk (T25FW), Timed Up and Go (TUG), 2-Minute Walk Test, and Multiple Sclerosis Walking Scale-12). Fatigue, depression, and cognition also were assessed. RESULTS: A total of 60 patients were randomized (30 to ADS-5102 and 30 to placebo); 59 of whom were treated. The most frequent adverse events (AEs) were dry mouth, constipation, and insomnia. Five ADS-5102 patients and no placebo patients discontinued treatment due to AEs. One patient in the ADS-5102 group experienced a serious AE-suspected serotonin syndrome. A 16.6% placebo-adjusted improvement was seen in the T25FW test ( p < 0.05). A 10% placebo-adjusted improvement in TUG was also observed. No changes in fatigue, depression, or cognition were observed. CONCLUSION: ADS-5102 was generally well tolerated. These data demonstrate an effect of ADS-5102 on walking speed. Further studies are warranted to confirm these observations.
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