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Anodal and Cathodal Transcranial Direct Current Stimulation in Stroke Recovery (tDCS)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified May 2012 by Assiut University.
Recruitment status was:  Active, not recruiting
Information provided by (Responsible Party):
Dina Hatem Elhammady, Assiut University Identifier:
First received: May 11, 2012
Last updated: May 16, 2012
Last verified: May 2012
The purpose of this study will to compare the long-term effect of anodal versus cathodal transcranial direct current stimulation (tDCS) on motor recovery in subacute stroke patients. Forty patients with subacute ischemic stroke will randomly assigned to one of three groups: Anodal, Cathodal and Sham. Each group will receive tDCS at an intensity of 2mA for 25 minutes daily for 6 consecutive days over the affected (Anodal, Sham) or unaffected (Cathodal) motor cortex. Patients will be assessed with National Institutes of Health Stroke Scale (NIHSS), the Barthel index (BI) and the Medical Research Council (MRC) muscle strength scale at baseline, after end of the 6th tDCS session, and then 1, 2 and 3 months later. Motor cortical excitability will be measured at baseline and after the 6th session in both hemispheres.

Condition Intervention
Procedure: transcranial direct current stimulation (Anodal)
Procedure: transcranial direct current stimulation (Cathodal)
Procedure: transcranial direct current stimulation (Sham)

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Effect of Anodal Versus Cathodal Transcranial Direct Current Stimulation on Stroke Recovery: a Pilot Randomized Controlled Trial

Further study details as provided by Assiut University:

Primary Outcome Measures:
  • Motor power improvement [ Time Frame: 3 Months ]
    improvement in the motor power of paretic patient as measured in one proximal and one distal muscle group testing in upper (shoulder abduction + hand grip) and lower limbs ( hip flexion + toes dorsiflexion).

Secondary Outcome Measures:
  • Motor cortical excitability [ Time Frame: 1 Month ]
    The difference in the motor cortical excitability (RMT, AMT) before and after tDCS

Enrollment: 40
Study Start Date: January 2011
Estimated Study Completion Date: June 2012
Estimated Primary Completion Date: May 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Anodal tDCS Procedure: transcranial direct current stimulation (Anodal)
The anodal group will receive tDCS for 25 minutes at 2mA daily for 6 consecutive days on the affected hemisphere.
Active Comparator: Cathodal tDCS Procedure: transcranial direct current stimulation (Cathodal)
The Cathodal group will receive tDCS for 25 minutes at 2mA daily for 6 consecutive days on the unaffected hemisphere.
Sham Comparator: Sham Procedure: transcranial direct current stimulation (Sham)
The sham group will receive sham tDCS for 25 minutes daily for 6 consecutive days on the affected hemisphere.


Ages Eligible for Study:   40 Years to 70 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • acute hemiparesis with single thromboembolic non-hemorrhagic infarction documented by magnetic resonance imaging (MRI)
  • Accept to participate in the study

Exclusion Criteria:

  • extensive infarction (taking all territories of middle cerebral artery)
  • severe flaccid hemiplegia
  • head injury
  • Any other neurological disease other than stroke
  • previous administration of tranquilizer
  • patients who are unable to give informed consent because of severe aphasia, or cognitive deficit.
  • Patients with no motor evoked response recorded from First Dorsal Interosseus (FDI) muscle of the affected hand
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Please refer to this study by its identifier: NCT01601392

Faculty of Medicine, Assiut University
Assiut, Egypt
Sponsors and Collaborators
Dina Hatem Elhammady
Principal Investigator: Eman M Khedr, Professor Assiut University
  More Information

Responsible Party: Dina Hatem Elhammady, Clinical Professor, Assiut University Identifier: NCT01601392     History of Changes
Other Study ID Numbers: tDCS in stroke recovery
Study First Received: May 11, 2012
Last Updated: May 16, 2012

Keywords provided by Assiut University:
Ischemic stroke
direct current stimulation
motor threshold
National institutes of Health Stroke Scale
Barthel index scale
Measurement of motor power improvement

Additional relevant MeSH terms:
Cerebrovascular Disorders
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Vascular Diseases
Cardiovascular Diseases processed this record on May 23, 2017