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Randomized Controlled Trial
. 2018 Nov;24(13):1760-1769.
doi: 10.1177/1352458517732842. Epub 2017 Sep 22.

Remotely supervised transcranial direct current stimulation for the treatment of fatigue in multiple sclerosis: Results from a randomized, sham-controlled trial

Leigh E Charvet  1 , Bryan Dobbs  1 , Michael T Shaw  1 , Marom Bikson  2 , Abhishek Datta  3 , Lauren B Krupp  1
Affiliations
Randomized Controlled Trial

Remotely supervised transcranial direct current stimulation for the treatment of fatigue in multiple sclerosis: Results from a randomized, sham-controlled trial

Leigh E Charvet et al. Mult Scler. 2018 Nov.

Abstract

Background: Fatigue is a common and debilitating feature of multiple sclerosis (MS) that remains without reliably effective treatment. Transcranial direct current stimulation (tDCS) is a promising option for fatigue reduction. We developed a telerehabilitation protocol that delivers tDCS to participants at home using specially designed equipment and real-time supervision (remotely supervised transcranial direct current stimulation (RS-tDCS)).

Objective: To evaluate whether tDCS can reduce fatigue in individuals with MS.

Methods: Dorsolateral prefrontal cortex left anodal tDCS was administered using a RS-tDCS protocol, paired with 20 minutes of cognitive training. Here, two studies are considered. Study 1 delivered 10 open-label tDCS treatments (1.5 mA; n = 15) compared to a cognitive training only condition ( n = 20). Study 2 was a randomized trial of active (2.0 mA, n = 15) or sham ( n = 12) delivered for 20 sessions. Fatigue was assessed using the Patient-Reported Outcomes Measurement Information System (PROMIS)-Fatigue Short Form.

Results and conclusion: In Study 1, there was modest fatigue reduction in the active group (-2.5 ± 7.4 vs -0.2 ± 5.3, p = 0.30, Cohen's d = -0.35). However, in Study 2 there was statistically significant reduction for the active group (-5.6 ± 8.9 vs 0.9 ± 1.9, p = 0.02, Cohen's d = -0.71). tDCS is a potential treatment for MS-related fatigue.

Keywords: Fatigue; multiple sclerosis; tDCS; tES; telerehabilitation; transcranial direct current stimulation.

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Conflict of interest statement

Declaration of Conflicting Interests

The author(s) declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: CUNY has patents with M.B. as inventor. M.B is an advisor for and has equity in Soterix Medical. CUNY has patents with A.D. as inventor. A.D. is an employee and has equity in Soterix Medical.

Figures

Figure 1
Figure 1
CONSORT flow diagram for Studies 1 and 2 shown. Study 2 was randomized upon enrollment, while Study 1 had active and control conditions recruited separately.
Figure 2
Figure 2
Mean change in PROMIS Fatigue score is shown. Error bars represent standard error of the mean. *significance at p < 0.05 as determined by a two sample t-test.
Figure 3
Figure 3
Data for average daily fatigue are shown. Data shown are only from Study 2. Each line represents the average change in daily fatigue for a participant. *significance at p < 0.05 as determined by a paired sample t-test.
See this image and copyright information in PMC

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