Remediation of Cognitive Dysfunction in Euthymic Bipolar Disorder Patients Using Transcranial Direct Current Stimulation (tDCS)

November 2, 2015 updated by: The University of New South Wales
This study aims to investigate the potential for Transcranial Direct Current Stimulation (tDCS) to enhance cognitive functioning in euthymic bipolar patients through comparing the effect of active or sham tDCS (placebo control) during the performance of two cognitive tasks. The investigators hypothesize that task performance will be improved with active relative to sham tDCS.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

15

Phase

  • Phase 1

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

  • Australia
    • New South Wales
      • Sydney, New South Wales, Australia, 2031
        • University of New South Wales

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 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Participants will be right-handed subjects aged 18-65 meeting DSM-IV diagnostic criteria for bipolar disorder, with no acute episodes of depression or mania within the previous 12 weeks
  • A score of ≤ 20 on the MADRS, and a score of ≤ 6 on the YMRS, who have been on a stable dose of mood stabiliser medications for at least 1 month.

Exclusion Criteria:

  • Patients with high suicide risk
  • Co-morbid DSM-IV diagnosis of any psychotic disorder (current or within the last year), schizophrenia and schizoaffective disorder
  • Mental retardation
  • A history of drug or alcohol abuse or dependence within the last 3 months
  • Co-morbid attention deficit hyperactivity disorder (ADHD), or any neurological disorder
  • Recent stroke
  • Head injury
  • History of seizure, or who have had electroconvulsive therapy (ECT) within the 6 months preceding enrolment.
  • Participants will also be excluded if currently taking medications known to be associated with frank cognitive impairment (e.g., benzodiazepines).

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: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Sham Comparator: Sham transcranial direct current stimulation
Device: Transcranial direct current stimulation (Eldith DC Stimulator)
Eldith DC Stimulator (NeuroConn GmbH, Germany)
Active Comparator: Transcranial direct current stimulation
Device: Transcranial direct current stimulation (Eldith DC Stimulator)
Eldith DC Stimulator (NeuroConn GmbH, Germany)
Active Comparator: Different transcranial direct current stimulation montage
Device: Transcranial direct current stimulation (Eldith DC Stimulator)
Eldith DC Stimulator (NeuroConn GmbH, Germany)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Total correct responses.
Time Frame: Across each session (approximately 1 hour in duration), with each session conducted at least 1 week apart.
Total number of correct responses on each task in each session.
Across each session (approximately 1 hour in duration), with each session conducted at least 1 week apart.

Collaborators and Investigators

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

Sponsor

The University of New South Wales

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

September 1, 2011

Primary Completion (Actual)

December 1, 2014

Study Completion (Actual)

October 1, 2015

Study Registration Dates

First Submitted

April 7, 2011

First Submitted That Met QC Criteria

April 19, 2011

First Posted (Estimate)

April 20, 2011

Study Record Updates

Last Update Posted (Estimate)

November 3, 2015

Last Update Submitted That Met QC Criteria

November 2, 2015

Last Verified

July 1, 2015

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • HREC 11065

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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