A Pilot Trial of Remotely-Supervised Transcranial Direct Current Stimulation (RS-tDCS) to Enhance Motor Learning in Progressive Multiple Sclerosis (MS)

CompletedNot a drug-phase studyProgressive MSNCT03499314

What it found

Results posted, not judged

Results are posted in the registry, but without a statistical test of the main measure. See the numbers below.

What was tested

Treatment tested

  • Active RS-tDCS +At-Home Manual Dexterity Training

Placebo

  • Sham RS-tDCS +At-Home Manual Dexterity Training

Given to everyone in the trial

  • Manual dexterity training

Results by group

Mean Preload Phase Duration (PLD)

baseline and 30 minutes for each of 20 sessions, values averaged across sessions

GroupValueIntervalNumber analysed
RS-tDCS Stimulation0.152 seconds0.0424 (Standard Deviation)30
Sham Stimulation0.238 seconds0.0481 (Standard Deviation)24
RS-tDCS Stimulation0.163 seconds0.0426 (Standard Deviation)30
Sham Stimulation0.202 seconds0.0476 (Standard Deviation)24

RS-tDCS Stimulation

0.152

Sham Stimulation

0.238

RS-tDCS Stimulation

0.163

Sham Stimulation

0.202

Values as posted on ClinicalTrials.gov. Outcomes measured differently across trials are not directly comparable.

Safety

GroupParticipants at riskSerious adverse eventsDeaths
RS-tDCS Stimulation330 (0.0%)0
Sham Stimulation320 (0.0%)0

As posted on ClinicalTrials.gov. Serious adverse events include any serious health event during the trial, whether or not the treatment caused it.

What it measured

Main measures

  • Mean Preload Phase Duration (PLD)

    baseline and 30 minutes for each of 20 sessions, values averaged across sessions

Who could take part

Progressive MS · 18 to 70

Show the full criteria

Inclusion criteria

* Definite MS diagnosis, progressive subtype * 9HPT score between -1.0 and -4.0 standard deviations from age-based normative data * Score of \< 7.5 or less on the EDSS (with caregiver proxy required for those with scores of 6.5 or greater)* * Ability to understand the informed consent process and provide consent to participate in the study

Exclusion criteria

* Primary neurologic, psychiatric or other medical disorder other than MS * Use of upper extremity Botox injection within 3 months * Current use of intrathecal Baclofen * History of seizure disorder * History of head trauma or medical device in head or neck * Clinically significant abnormality on EKG * Symbol Digit Modalities Test or SDMT score ≥3.0 SD from published norms * WRAT-4 reading level below average (\<85) (estimated general intellectual function) * Skin disorder/sensitive near stimulation locations

As registered. Criteria can change, so ask the trial team or your neurologist.

About this trial

In the sponsor's words

This is a randomized, double-blind pilot clinical trial to test a novel treatment approach to rehabilitate fine motor function in individuals living with progressive multiple sclerosis (MS) using anodal transcranial direct current stimulation (tDCS) to augment manual dexterity training. Treatment will be delivered to individuals at home using a state-of-the-art remotely supervised tele-rehabilitation protocol, a major advantage for patients with respect to ease of access, feasibility, reinforcement learning and minimal burden of in clinic study visit participation. Improvements in fine motor skill will be assessed at each remote session using a novel portable grip device that measures execution and adaptation or learning of fingertip forces during grasp, which is more sensitive than standard measures of hand function.

Papers

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    History

      1. Started

        Apr 2018

      2. Main results due

        Nov 2020

      3. Finished

        Nov 2020

      4. Results posted

        Mar 2022

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