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Trial record 1 of 1 for:    NCT01593956
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Influence of Transcranial Direct Current Stimulation on Cortical Plasticity in Concussed Athletes

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 2013 by Charite University, Berlin, Germany.
Recruitment status was:  Recruiting
Information provided by (Responsible Party):
Jonathan List, Charite University, Berlin, Germany Identifier:
First received: May 7, 2012
Last updated: May 22, 2013
Last verified: May 2013

Concussed athlethes have discrete decreased abilities in motor learning. Recent research could further show, that cortical plasticity, as measured by transcranial magnetic stimulation (TMS) is reduced. This is possibly due to an increased GABAergic activity, what have been found in concussed athletes by paired pulse protocols in TMS.

GABAergic acitivty can be modulated by transcranial direct current stimulation (tDCS) in a polar-specific manner: anodal tDCS was able to decrease GABA, whereas cathodal tDCS increased tDCS.

Our study aimes to assess the influence of anodal tDCS on cortical plsticity in concussed athlethes. We hypothesize, that anodal tDCS is able to increase cortical plsticity in concussed athlethes.

Condition Intervention
Concussed Athletes
Healthy Controls
Behavioral: tDCS

Study Type: Interventional
Study Design: Primary Purpose: Treatment
Official Title: Influence of Anodal Transcranial Direct Current Stimulation on Cortical Plasticity in Concussed Athletes and Healthy Volunteers

Further study details as provided by Charite University, Berlin, Germany:

Primary Outcome Measures:
  • Improvement of cortical plasticity after anodal tDCS in concussed athletes

Estimated Enrollment: 30
Study Start Date: March 2012
Estimated Primary Completion Date: July 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Concussed athletes Behavioral: tDCS
Healthy controls Behavioral: tDCS


Ages Eligible for Study:   18 Years to 50 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • history of at least 2 sports concussion
  • age 18 - 50 years

Exclusion Criteria:

  • structural deficit on cerebral MRI
  • Epilepsy
  • neurological disorder
  • intake of CNS-active drugs
  Contacts and Locations
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Please refer to this study by its identifier: NCT01593956

Charité - Department of neurology Recruiting
Berlin, Germany, 10117
Contact: Jonathan List, MD    +40 30 450560223   
Contact: Agnes Flöel, Prof.    +40 30 450660284   
Principal Investigator: Jonathan List, MD         
Principal Investigator: Agnes Flöel, Prof         
Sponsors and Collaborators
Charite University, Berlin, Germany
Principal Investigator: Jonathan List, MD Charité - Department of Neurology
Principal Investigator: Agnes Flöel, Prof. Charité - Department of Neurology