- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03699930
Impact of Neuromodulation on Language Impairments in Stroke Patients
Impact of Neuromodulation on Language Impairments in Stroke Patients: a Multimodal Double-blind Randomized Controlled Study
Study Overview
Status
Intervention / Treatment
Detailed Description
Approximately one million people in the United States are living with aphasia, an acquired neurological disorder affecting the ability to use and/or understand language. This communication impairment affects up to 40% of stroke patients. Stroke victims usually prioritize speaking, writing, and walking as the three most important rehabilitation goals, two of these goals therefore involving communication. Conventional speech therapy strategies have nevertheless limited effectiveness in post-stroke aphasia. Indeed, approximately half of those affected will remain in this state despite intensive speech therapy. Effective novel treatment is therefore warranted to improve recovery in these patients. Recent evidence suggests that transcranial direct current stimulation (tDCS), a non-invasive, low-cost neuromodulation technique, applied in conjunction with speech therapy may be more effective in promoting language recovery than behavioral intervention alone.
A double-blind quasi-randomized controlled study will be carried out in chronic post-stroke aphasics. Participants will be assigned to either the tDCS group or to the sham (placebo) group and will receive 20 minutes of concurrent speech and language therapy by a trained speech therapist over five consecutive days. Behavioral, EEG, and MRI data will be acquired within one week before and after intervention. Genetic samples will be collected once. Secondary behavioral outcome measures will be performed again 3 months following tDCS/sham intervention to assess long-term benefits.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
California
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Pomona, California, United States, 91769
- Casa Colina Hospital and Centers for Healthcare
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Between ages 18-85
- At least 12 months post stroke
- Diagnosed with aphasia due to ischemic or hemorrhagic stroke
- English speaking
- Right handed prior to stroke
Exclusion Criteria:
- Nonverbal
- Other neurological diseases/disorders
- Not MRI-compatible (e.g. claustrophobia, metal implants in the head)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: tDCS + speech therapy
Participants will receive 20 minutes of anodal tDCS paired with speech and language therapy over five consecutive days.
|
Anodal or sham tDCS will be applied to the scalp.
A trained speech pathologist will administer the speech and language therapy.
|
Sham Comparator: sham + speech therapy
Participants will receive 20 minutes of sham tDCS paired with speech and language therapy over five consecutive days.
|
Anodal or sham tDCS will be applied to the scalp.
A trained speech pathologist will administer the speech and language therapy.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Western Aphasia Battery-Revised scores
Time Frame: At baseline and at week 3
|
WAB-R is an instrument for assessing the language function of adults with suspected neurological disorders as a result of a stroke.
|
At baseline and at week 3
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Magnetic Resonance Imaging (MRI)
Time Frame: At baseline and at week 3
|
MRI scans will be acquired on a Siemens Magnetom Verio 3T Scanner at Casa Colina Imaging Center to assess structural changes.
|
At baseline and at week 3
|
Change in resting state Electroencephalograph (EEG) signals
Time Frame: At baseline and at week 3
|
Using a B-Alert wireless EEG system, we will perform eyes-open resting-state EEG recordings to assess power spectral density changes.
|
At baseline and at week 3
|
Change in Test of Nonverbal Intelligence (TONI-4)
Time Frame: At baseline and at week 3
|
TONI-4 is a language-free intelligence test for evaluating those with limited language ability.
|
At baseline and at week 3
|
Change in Communication Outcomes after Stroke (COAST)
Time Frame: At baseline, at week 3, and at week 17
|
The COAST is used to assess self-perceived communication effectiveness for people with aphasia.
|
At baseline, at week 3, and at week 17
|
Change in Patient-Reported Outcomes Measurement Information System (PROMIS)
Time Frame: At baseline, at week 3, and at week 17
|
PROMIS is used to assess physical, mental, and social health.
|
At baseline, at week 3, and at week 17
|
Change in Stroke and Aphasia Quality of Life Scale-39 (SAQOL-39)
Time Frame: At baseline, at week 3, and at week 17
|
The SAQOL-39 is used to assess health-related quality of life in people with long-term aphasia.
|
At baseline, at week 3, and at week 17
|
Collaborators and Investigators
Investigators
- Principal Investigator: Amy Zheng, PhD, Casa Colina Hospital and Centers for Healthcare
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- tDCS
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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