Neurostimulation for Cognitive Rehabilitation in Stroke (NeuroCog)

December 4, 2015 updated by: Suellen Marinho Andrade, Federal University of Paraíba

Neurostimulation for Cognitive Enhancement After Stroke (NeuroCog)

Transcranial direct current stimulation has shown promising results in stroke patients. This study is a double blind, sham-controlled clinical trial aiming to compare the long-term effects of stimulation in two different cognitive regions after a stroke. Sixty patients who suffer from chronic strokes will be randomized into 1 of 3 groups: dorsolateral prefrontal cortex, cingulo-opercular network and motor primary cortex (control). Each group will receive transcranial direct current stimulation for 20 minutes for 10 consecutive working days (2 weeks). Patients will be assessed with a Dysexecutive Questionnaire, Semantic Fluency test, categorical verbal fluency and Go-no go tests, Wechsler Adult Intelligence Scale, Rey Auditory-Verbal Learning Test, Letter Comparison and Pattern Comparison Tasks at baseline, after their tenth stimulation session (week 2) and endpoint (week 4). Those who achieve clinical improvement with neurostimulation will be invited to receive treatment for 12 months as part of a follow-up study.

Study Overview

Study Type

Interventional

Enrollment (Anticipated)

60

Phase

  • Phase 2
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • PB
      • João Pessoa, PB, Brazil
        • Recruiting
        • Suellen Andrade
        • Contact:
          • Suellen Andrade

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 60 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Ischaemic chronic stroke
  • Mild/Moderate Cognitive impairment
  • Informed consent

Exclusion Criteria:

  • National Institute of Health Stroke Scale (NIHSS) ≥ 16 points
  • Severe cognitive comorbidities (dementia, depression)
  • transcranial direct current stimulation criteria: use of modulators of the Central Nervous System drugs; patients with implanted metallic or electronic devices; pacemaker; seizures; pregnancy;any other condition that might limit or interfere in the sensorimotor system

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: dlPFC
Participants in the chronic post-stroke stage will receive active transcranial direct current stimulation in dorsolateral prefrontal cortex
Other Names:
  • tdcs
Experimental: CON
Participants in the chronic post-stroke stage will receive active transcranial direct current stimulation in cingulo-opercular network
Other Names:
  • tdcs
Active Comparator: M1
Participants in the chronic post-stroke stage will receive active transcranial direct current stimulation in motor primary cortex
Other Names:
  • tdcs

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Executive Function measured by Dysexecutive Questionnaire (DEX)
Time Frame: Change for executive functions at 4 weeks
Change for executive functions at 4 weeks

Secondary Outcome Measures

Outcome Measure
Time Frame
Verbal Fluency (Semantic Fluency Test)
Time Frame: [ Time Frame: Baseline, Week 2 and Week 4 ]
[ Time Frame: Baseline, Week 2 and Week 4 ]
Response inhibition (Go-no-go Test)
Time Frame: [ Time Frame: Baseline, Week 2 and Week 4 ]
[ Time Frame: Baseline, Week 2 and Week 4 ]
Executive function (Wechsler Intelligence Scale for Adults)
Time Frame: [ Time Frame: Baseline, Week 2 and Week 4 ]
[ Time Frame: Baseline, Week 2 and Week 4 ]
Memory (Rey Auditory Verbal Learning)
Time Frame: [ Time Frame: Baseline, Week 2 and Week 4 ]
[ Time Frame: Baseline, Week 2 and Week 4 ]
Processing Speed (Letter Comparison and Pattern Comparison Tasks)
Time Frame: [ Time Frame: Baseline, Week 2 and Week 4 ]
[ Time Frame: Baseline, Week 2 and Week 4 ]

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Suellen Andrade, PhD, Federal University of Paraíba

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

December 1, 2015

Primary Completion (Anticipated)

March 1, 2016

Study Completion (Anticipated)

July 1, 2016

Study Registration Dates

First Submitted

December 9, 2014

First Submitted That Met QC Criteria

December 9, 2014

First Posted (Estimate)

December 12, 2014

Study Record Updates

Last Update Posted (Estimate)

December 7, 2015

Last Update Submitted That Met QC Criteria

December 4, 2015

Last Verified

December 1, 2015

More Information

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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