CClinicalTrials.gg
Status unknownNCT01845129StimRAphUpdated May 3, 2013

Impact of Transcranial Direct Current Stimulation of the Motor Cortex on Language Functions in Residual Aphasia

An interventional study of atDCS and sham tDCS in Residual Aphasia, sponsored by Charite University, Berlin, Germany. Status unknown at 1 site in Germany. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2013-05-03.

Sponsored by Charite University, Berlin, Germany · Not applicable, Interventional, and Basic science

The sponsor has not verified this record recently (last verified Apr 2013), so the status shown — last known as Recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
16
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
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Study summary

The present study assesses whether language functions in patients with residual post-stroke aphasia can be improved by transcranial direct current stimulation administered to the primary motor cortex in the language dominant (left) hemisphere.

Read the detailed description

Patients will participate in two tDCS sessions (atDCS; sham) in a cross-over within subjects design. tDCS or placebo will be administered during simulatneous fMRI to assess neural signatures of the stimulation. Order of stimulation will be counterbalanced between subjects

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Conditions studied

  • Residual Aphasia

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03

In context

Aphasia

365 studies on the registry are indexed under Aphasia; 89 are open to participants now.

This study's planned enrollment of 16 is below the median of 30 across 316 interventional studies indexed under Aphasia.

Browse Aphasia studies →

Lead sponsor

Charite University, Berlin, Germany is the lead sponsor of 836 studies on the registry; 129 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • right handedness
  • German native speaker
  • cerebrovascular stroke in left hemisphere (>6 months)
  • mild aphasia (according to Aachen Aphasia Test Battery Classification, Huber et al., 1983)
  • residual anomia in naming test (>75 correct responses)

Exclusion criteria

Exclusion Criteria:

  • other current or previous neurological or psychiatric diseases
  • alcohol or drug abuse
  • MRI contraindication (e.g. magnetic metal, pacemaker, claustrophobia)
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Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
16 participants (estimated)

Study arms

  • Experimental
    anodal tDCS

    atDCS will be administered for 20 minutes with 1 milliampere (1 mA) to the left primary hand motor cortex

    Device: atDCS · Device: sham tDCS

  • Sham comparator
    sham tDCS

    sham tDCS will be administered to the left primary hand motor cortex

    Device: atDCS · Device: sham tDCS

Interventions

  • DeviceatDCS

    atDCS will be delivered with a constant current of 1 mA during simultaneous resting-state (RS) and task-related (picture naming) functional magnetic resonance imaging (fMRI). The current will be turned on prior to the RS-fMRI scan and continues for 20 minutes.

  • Devicesham tDCS

    During sham the current will be increeased and decreased in a ramp-like fashion (10 sec)

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What researchers measure

Primary outcomes

  1. Response latency during picture naming task (max. 80)

    Subjects are assessed in a cross-over design. The primary outcome measure will be assessed twice in each subject, either during placebo ("sham) stimulation or active (anodal) stimulation with transcranial direct current stimulation. Order of stimulation will be counterbalanced across the group.

    Time frame: Change in response latency between assessment 1 (week 1) and assessment 2 (week 2), assessments 1 and 2 are seperated by one week

Secondary outcomes

  1. Change in neural activity measured by functional magnetic resonance imaging

    Time frame: Change in fMRI activity between Assessment 1 (week 1) and Assessment 2 (week 2), assessments 1 and 2 are seperated by one week

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Study locations

1 of 1 sites recruiting
  • Charite, University Medicine, Dept. of Neurology
    Berlin, 10117, Germany
    • Robert Darkow, MSc · Contact · robert.darkow@charite.de · +49 30 450 560
    • Marcus Meinzer, PhD · Principal investigator
    • Agnes Flöel, MD · Principal investigator
    Recruiting
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 3, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01845129
Lead sponsor
Charite University, Berlin, Germany
Responsible party
Marcus Meinzer (Creutzfeldt Fellow, Charite University, Berlin, Germany) — Principal investigator
First posted
May 3, 2013
Start date
Apr 2013
Primary completion
Apr 2014 (estimated)
Completion
Apr 2014 (estimated)
Last update
May 3, 2013

Study contacts

Robert Darkow, MSc
Contact
robert.darkow@charite.de
+49 30 450 560 ext. 395
Marcus Meinzer, PhD
principal investigator · Charite, University Medicine, Neurology
Agnes Flöel, MD
principal investigator · Charite, University Medicine, Neurology

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Apr 2013. You cannot join it, but the record below documents what was studied.

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