Post-Stroke Aphasia and Repetitive Transcranial Magnetic Stimulation (rTMS) Treatment Study

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

28 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-01-31

Study Completion Date

2018-07-20

Brief Summary

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In this study the investigators will examine the efficacy of navigated excitatory repetitive transcranial magnetic stimulation (nerTMS) for the treatment of post stroke aphasia. The investigators expect that this new types of rehabilitation (nerTMS) will help patients with aphasia return to their lives as they were prior to the stroke.

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Detailed Description

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Aphasia after stroke is associated with high mortality, significant motor impairment, and severe limitations in social participation. During the past decade, therapies administered by stroke teams have made great strides to limit the motor impairments caused by stroke. Unfortunately, progress in aphasia rehabilitation has not experienced the same rapid advancement. This proposal is based on preliminary evidence from our recently completed pilot study which showed that navigated excitatory repetitive transcranial magnetic stimulation (nerTMS) targeted to residual activity in the affected hemisphere has a significant beneficial effect on post-stroke aphasia recovery.1 The main aim of this study is to conduct a double-blind, sham-controlled, dose-response nerTMS treatment trial in subjects with chronic aphasia. By conducting this comparative trial, we will provide clinical (qualitative and quantitative) and imaging evidence that nerTMS improves language function after stroke when compared to standard treatment (ST). The findings will have implications for patients with post-stroke aphasia in that once the study is completed and the results are available, rehabilitation specialists may be able to change their practice pattern by offering an additional tool to aid patients in recovering their language skills with improved participation in society and enhanced quality of life.

To fill the gap in our therapeutic arsenal for aphasia, we propose a study with the following specific aims: (1) to determine the comparative efficacy and optimal dosing of nerTMS on aphasia recovery using a randomized, double-blind, sham-controlled study design. Subjects (15/group) will be randomly assigned to 4 treatment groups: (a) 3 weeks of nerTMS, (b) 1 week of ST + 2 weeks of nerTMS, (c) 2 weeks of ST +1 week of nerTMS, or (d) 3 weeks of ST (control group). This design will allow systematic evaluation of the efficacy of nerTMS and will determine its most optimal dose for language recovery. Short- and long-term outcomes will be evaluated with aphasia testing (AT) and fMRI; (2) to use fMRI to assess changes in language lateralization in response to nerTMS. We will examine the relationship between the degree of pre-nerTMS language lateralization (fMRI) with the post-nerTMS language outcomes (AT) and determine whether fMRI language lateralization can predict AT performance following nerTMS targeted to the left middle cerebral artery (LMCA) stroke areas.

Conditions

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Aphasia Stroke

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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rTMS

3 weeks of nerTMS

Group Type EXPERIMENTAL