Transcranial Direct Current Stimulation, Improve Functional Motor Recovery, Affected Arm
Study Details
Study Description
Brief Summary
Overall goal of this study is to determine if transcranial direct current stimulation (tDCS) plus conventional occupational therapy improves functional motor recovery in the affected arm-hand in patients after an acute ischemic stroke compared to sham tDCS plus conventional occupational therapy, and to obtain information to plan a large randomized controlled trial.
Condition or Disease | Intervention/Treatment | Phase |
---|---|---|
|
N/A |
Detailed Description
Study design:
Patients Successive admissions to the stroke service of the Veterans Affairs Medical Center with ischemic strokes will participate in this study.
Eligibility criteria:
Inclusion criteria:
-
Unilateral, 1st acute stroke event within 4 weeks of admission to an in-patient rehabilitation facility
-
Ischemic stroke documented clinically and by neuroimaging.
-
Severe upper limb weakness (MRC grade of 2 or less at the shoulder joint)
-
Medically stable from a cardio-respiratory stand point so that they can participate in daily therapies.
-
Depressed patients will be included in the study (psychiatrist referral will be made if deemed necessary).
-
Aphasic alert patients will be included in the study provided they were able to follow simple directions by verbal or gestural cues and provided with a written informed consent.
-
Informed consent, from cognitively intact patients (admission Mini Mental Scale Examination [MMSE] greater than or equal to 21). When it is not possible for the patient to provide informed consent or patient is cognitively impaired with MMSE ≤ 20, proxy consent will be obtained from the next of kin (legal authorized representative) according to institutional IRB standards. Informed consent will be obtained by the admitting physicians.
Exclusion criteria:
-
Hemorrhagic strokes
-
Patient's with an episode post-stroke seizure or history of epilepsy.
-
Patients medically unstable, demented, or terminally ill (e.g., patients with stroke as a complication of a terminal cancer).
-
On medications such as botox for spasticity or other medications known to enhance motor recovery such as d-amphetamine,
-
Stroke patients with implanted pacemakers and defibrillators.
-
Refusal to provide informed consent
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
---|---|
Sham Comparator: t DC stimulation Sham transcranial direct current stimulation tDCS induces slight short-lasting tingling with onset of the stimulation. These sensations usually fade away in seconds. Sham interventions are essential to blind the subject and the assessor in order to obtain unbiased assessment of intervention effects |
Device: t DC stimulation
tDCS is a non-invasive, non-painful technique that modulates cortical excitability. tDCS can induce intracerebral current flow that is sufficiently large to achieve changes in cortical excitability. Thus, tDCS can be applied to humans non-invasively and painlessly to induce focal, lasting but reversible shifts of cortical excitability.
Other Names:
Device: tDCStimulation
1 mA of tDCS will be delivered through surface electrodes (25-35 cm2) to the unaffected motor cortex for 30 min prior to a patient's scheduled OT. In the sham group patient will receive stimulation for 30 seconds only.
Other Names:
|
Experimental: tDC stimulation Actual DC stimulation |
Device: t DC stimulation
tDCS is a non-invasive, non-painful technique that modulates cortical excitability. tDCS can induce intracerebral current flow that is sufficiently large to achieve changes in cortical excitability. Thus, tDCS can be applied to humans non-invasively and painlessly to induce focal, lasting but reversible shifts of cortical excitability.
Other Names:
Device: tDCStimulation
1 mA of tDCS will be delivered through surface electrodes (25-35 cm2) to the unaffected motor cortex for 30 min prior to a patient's scheduled OT. In the sham group patient will receive stimulation for 30 seconds only.
Other Names:
|
Outcome Measures
Primary Outcome Measures
- Total Functional Independence Measure (TFIM) Change Scores [from baseline to 4-weeks of therapy]
The Functional Independence Measure (FIM™) will measure the degree of disability. The FIM scale is a reliable and valid functional assessment measure widely used in rehabilitation settings. The FIM has 18 items and each item is scored on an ordinal scale ranging from 1 to 7. A FIM™ item score of seven is categorized as "complete independence," while a score of one is "total assist" (patient performs less than 25% of task). The total FIM score (TFIM) quantifies level of independence and ranges from 18 (lowest) to 126 (highest) level of independence.
Secondary Outcome Measures
- Action Research Arm Test (ARAT) Change Scores [baseline to after 4-weeks of therapy]
The Action Research Arm Test (ARAT) is a standardized ordinal scale that measures upper extremity (arm and hand) function. This test assesses the ability to lift various sized objects to a height of 14.75 inches, move cylindrical shaped objects a distance of 14.75 inches, use pinch grasp to lift varying sized objects (such as a ball bearing, and a marble) between the thumb and the 3rd finger, and perform 3 gross upper extremity movements. Each upper extremity is evaluated individually. Score 0=no arm-hand movement and 57=normal
- Discharge Disposition [after 4 weeks of intervention]
Patient discharged home or to sub-acute facility
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Unilateral, 1st acute stroke event within 4 weeks of admission to an in-patient rehabilitation facility
-
Ischemic stroke documented clinically and by neuroimaging.
-
Severe upper limb weakness (MRC grade of 2 or less at the shoulder joint)
-
Medically stable from a cardio-respiratory stand point so that they can participate in daily therapies.
-
Depressed patients will be included in the study (psychiatrist referral will be made if deemed necessary).
-
Aphasic alert patients will be included in the study provided they were able to follow simple directions by verbal or gestural cues and provided with a written informed consent.
-
Informed consent, from cognitively intact patients (admission Mini Mental Scale Examination [MMSE] greater than or equal to 21). When it is not possible for the patient to provide informed consent or patient is cognitively impaired with MMSE ≤ 20, proxy consent will be obtained from the next of kin (legal authorized representative) according to institutional IRB standards. Informed consent will be obtained by the admitting physicians.
Exclusion Criteria:
-
Hemorrhagic strokes
-
Patient's with an episode post-stroke seizure or history of epilepsy.
-
Patients medically unstable, demented, or terminally ill (e.g., patients with stroke as a complication of a terminal cancer).
-
On medications such as botox for spasticity or other medications known to enhance motor recovery such as d-amphetamine,
-
Stroke patients with implanted pacemakers and defibrillators.
-
Refusal to provide informed consent
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
---|---|---|---|---|---|
1 | Oklahoma City VA Medical Center | Oklahoma City | Oklahoma | United States | 73104 |
Sponsors and Collaborators
- University of Oklahoma
- VA Office of Research and Development
Investigators
- Principal Investigator: Meheroz H Rabadi, MD, MRCPI, Oklahoma University
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 1620
Study Results
Participant Flow
Recruitment Details | From 2010 to 12/2015 at the OKC VA Med Center as in-patient |
---|---|
Pre-assignment Detail | No significant events or enrolled participants were excluded. |
Arm/Group Title | Experimental (tDCs) | Sham |
---|---|---|
Arm/Group Description | t-DCs was administered in 8 patients externally for 30 min at 1 MA Anodal stimulation | 8 patient received sham tDCs i.e. after 1 minute of tDCs the machine was off for the next 30 minutes. |
Period Title: Overall Study | ||
STARTED | 8 | 8 |
COMPLETED | 8 | 8 |
NOT COMPLETED | 0 | 0 |
Baseline Characteristics
Arm/Group Title | Experimental (tDCs) | Sham | Total |
---|---|---|---|
Arm/Group Description | t-DCs was administered in 8 patients externally for 30 min at 1 MA Anodal stimulation | 8 patient received sham tDCs i.e. after 1 minute of tDCs the machine was off for the next 30 minutes. | Total of all reporting groups |
Overall Participants | 8 | 8 | 16 |
Age (Years) [Mean (Standard Deviation) ] | |||
Mean (Standard Deviation) [Years] |
62
(11)
|
63
(6)
|
62
(9)
|
Sex: Female, Male (Count of Participants) | |||
Female |
0
0%
|
0
0%
|
0
0%
|
Male |
8
100%
|
8
100%
|
16
100%
|
Race/Ethnicity, Customized (Count of Participants) | |||
Black |
1
12.5%
|
3
37.5%
|
4
25%
|
White |
7
87.5%
|
5
62.5%
|
12
75%
|
Region of Enrollment (participants) [Number] | |||
United States |
8
100%
|
8
100%
|
16
100%
|
Action Research Arm Test (ARAT) (units on a scale) [Mean (Standard Deviation) ] | |||
Mean (Standard Deviation) [units on a scale] |
4
(10.9)
|
1.9
(4.2)
|
2.9
(8.1)
|
Functional Independence Measures (TFIM) (units on a scale) [Mean (Standard Deviation) ] | |||
Mean (Standard Deviation) [units on a scale] |
61
(17)
|
59
(12)
|
60
(14)
|
Outcome Measures
Title | Total Functional Independence Measure (TFIM) Change Scores |
---|---|
Description | The Functional Independence Measure (FIM™) will measure the degree of disability. The FIM scale is a reliable and valid functional assessment measure widely used in rehabilitation settings. The FIM has 18 items and each item is scored on an ordinal scale ranging from 1 to 7. A FIM™ item score of seven is categorized as "complete independence," while a score of one is "total assist" (patient performs less than 25% of task). The total FIM score (TFIM) quantifies level of independence and ranges from 18 (lowest) to 126 (highest) level of independence. |
Time Frame | from baseline to 4-weeks of therapy |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Experimental (tDCs) | Sham |
---|---|---|
Arm/Group Description | t-DCs was administered in 8 patients externally for 30 min at 1 MA Anodal stimulation | 8 patient received sham tDCs i.e. after 1 minute of tDCs the machine was off for the next 30 minutes. |
Measure Participants | 8 | 8 |
Mean (Standard Deviation) [units on a scale] |
22.4
(15.7)
|
25.3
(9.1)
|
Statistical Analysis 1
Statistical Analysis Overview | Comparison Group Selection | Experimental (tDCs), Sham |
---|---|---|
Comments | ||
Type of Statistical Test | Other | |
Comments | ||
Statistical Test of Hypothesis | p-Value | < 0.05 |
Comments | ||
Method | t-test, 2 sided | |
Comments |
Title | Action Research Arm Test (ARAT) Change Scores |
---|---|
Description | The Action Research Arm Test (ARAT) is a standardized ordinal scale that measures upper extremity (arm and hand) function. This test assesses the ability to lift various sized objects to a height of 14.75 inches, move cylindrical shaped objects a distance of 14.75 inches, use pinch grasp to lift varying sized objects (such as a ball bearing, and a marble) between the thumb and the 3rd finger, and perform 3 gross upper extremity movements. Each upper extremity is evaluated individually. Score 0=no arm-hand movement and 57=normal |
Time Frame | baseline to after 4-weeks of therapy |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Experimental (tDCs) | Sham |
---|---|---|
Arm/Group Description | t-DCs was administered in 8 patients externally for 30 min at 1 MA Anodal stimulation | 8 patient received sham tDCs i.e. after 1 minute of tDCs the machine was off for the next 30 minutes. |
Measure Participants | 8 | 8 |
Mean (Standard Deviation) [units on a scale] |
10.1
(13.5)
|
1.7
(4.4)
|
Statistical Analysis 1
Statistical Analysis Overview | Comparison Group Selection | Experimental (tDCs), Sham |
---|---|---|
Comments | ||
Type of Statistical Test | Other | |
Comments | ||
Statistical Test of Hypothesis | p-Value | <0.05 |
Comments | ||
Method | t-test, 2 sided | |
Comments |
Title | Discharge Disposition |
---|---|
Description | Patient discharged home or to sub-acute facility |
Time Frame | after 4 weeks of intervention |
Outcome Measure Data
Analysis Population Description |
---|
[Not Specified] |
Arm/Group Title | Experimental (tDCs) | Sham |
---|---|---|
Arm/Group Description | t-DCs was administered in 8 patients externally for 30 min at 1 MA Anodal stimulation | 8 patient received sham tDCs i.e. after 1 minute of tDCs the machine was off for the next 30 minutes. |
Measure Participants | 8 | 8 |
Home |
4
50%
|
3
37.5%
|
Subacute Facility |
4
50%
|
5
62.5%
|
Adverse Events
Time Frame | 3-months | |||
---|---|---|---|---|
Adverse Event Reporting Description | ||||
Arm/Group Title | Experimental (tDCs) | Sham | ||
Arm/Group Description | t-DCs was administered in 8 patients externally for 30 min at 1 MA Anodal stimulation | 8 patient received sham tDCs i.e. after 1 minute of tDCs the machine was off for the next 30 minutes. | ||
All Cause Mortality |
||||
Experimental (tDCs) | Sham | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 0/8 (0%) | 0/8 (0%) | ||
Serious Adverse Events |
||||
Experimental (tDCs) | Sham | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 0/8 (0%) | 0/8 (0%) | ||
Other (Not Including Serious) Adverse Events |
||||
Experimental (tDCs) | Sham | |||
Affected / at Risk (%) | # Events | Affected / at Risk (%) | # Events | |
Total | 0/8 (0%) | 0/8 (0%) |
Limitations/Caveats
More Information
Certain Agreements
All Principal Investigators ARE employed by the organization sponsoring the study.
There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.
Results Point of Contact
Name/Title | Dr. Meheroz H. Rabadi |
---|---|
Organization | OKC VA Medical Center |
Phone | 405-456-5298 |
meheroz.rabadi@va.gov |
- 1620