Trial Review

Please note the ANZCTR will be unattended from Friday 20 December 2024 for the holidays. The Registry will re-open on Tuesday 7 January 2025. Submissions and updates will not be processed during that time.

Registering a new trial?

To achieve prospective registration, we recommend submitting your trial for registration at the same time as ethics submission.

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this information for consumers
Trial registered on ANZCTR


Registration number
ACTRN12612001061820
Ethics application status
Approved
Date submitted
3/10/2012
Date registered
4/10/2012
Date last updated
16/05/2017
Type of registration
Prospectively registered

Titles & IDs
Public title
Cognitive enhancement: an investigation of non-invasive electrical brain stimulation methods.
Scientific title
An investigation of non-invasive electrical brain stimulation methods on cognitive enhancement and cortical excitability in people with major depression and healthy controls.
Secondary ID [1] 281337 0
1/12/0449
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Major Depression 287562 0
Condition category
Condition code
Mental Health 287887 287887 0 0
Depression
Mental Health 287893 287893 0 0
Studies of normal psychology, cognitive function and behaviour

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Arm 1: 1 mA transcranial direct current stimulation (tDCS)
Arm 2: 1 mA transcranial random noise stimulation (rRNS) with a 1mA DC offset

All excitatory stimulation will be applied to the left dorsolateral prefrontal cortex for 20 minutes using a neuroConn GBH/Eldith DC Stimulator.
Intervention code [1] 285801 0
Treatment: Devices
Comparator / control treatment
Arm 3: Sham stimulation.
This will involve placing the electrodes in the same position as for active sessions, however stimulation will be ceased after 30 seconds (so as to generate the same initial sensation and ensure blinding is maintained).
Control group
Placebo

Outcomes
Primary outcome [1] 288103 0
Stimulation will be delivered concurrent with a mathematical task and the primary outcome measure will be a between groups comparison of task proficiency.
Timepoint [1] 288103 0
During application of active/sham stimulation
Secondary outcome [1] 299431 0
Resting EEG activity
Timepoint [1] 299431 0
Pre and post application of active/sham stimulation
Secondary outcome [2] 299438 0
EEG activity during completion of a working memory task
Timepoint [2] 299438 0
Pre and post application of active/sham stimulation
Secondary outcome [3] 299439 0
DLPFC cortical inhibition measured via TMS/EEG
Timepoint [3] 299439 0
Pre and post application of active/sham stimulation
Secondary outcome [4] 334917 0
Performance on a verbal working-memory task
Timepoint [4] 334917 0
Pre and post application of active/sham stimulation

Eligibility
Key inclusion criteria
Major Depression
1. Able to provide informed consent
2. Meet criteria for a major depressive episode as determined by structured clinical interview.

Healthy Controls
1. Able to provide informed consent
2. Have no history of mental illness as determined by self report and structured clinical interview
Minimum age
18 Years
Maximum age
65 Years
Sex
Both males and females
Can healthy volunteers participate?
Yes
Key exclusion criteria
Major Depression
1. Comorbid psychotic illness

All Participants
1. Unstable medical condition, neurological disorder or are currently pregnant or lactating
2. Metal in the cranium, a pacemaker, cochlear implant medication pump or other implanted electronic device

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Who is / are masked / blinded?



Intervention assignment
Parallel
Other design features
Phase
Not Applicable
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Date of first participant enrolment
Anticipated
15/11/2012
Actual
3/11/2014
Date of last participant enrolment
Anticipated
Actual
14/02/2017
Date of last data collection
Anticipated
Actual
14/02/2017
Sample size
Target
120
Accrual to date
Final
101
Recruitment in Australia
Recruitment state(s)
VIC

Funding & Sponsors
Funding source category [1] 286103 0
Self funded/Unfunded
Name [1] 286103 0
Country [1] 286103 0
Primary sponsor type
Individual
Name
Dr Rebecca Segrave
Address
Monash Alfred Psychiatry Research Centre
Level 4, 607 St Kilda Rd
Prahran, VIC
3004
Country
Australia
Secondary sponsor category [1] 284915 0
None
Name [1] 284915 0
Address [1] 284915 0
Country [1] 284915 0

Ethics approval
Ethics application status
Approved
Ethics committee name [1] 288149 0
Alfred Human Research Ethics Committee
Ethics committee address [1] 288149 0
Ethics committee country [1] 288149 0
Australia
Date submitted for ethics approval [1] 288149 0
02/10/2012
Approval date [1] 288149 0
01/11/2012
Ethics approval number [1] 288149 0

Summary
Brief summary
Trial website
Trial related presentations / publications
Public notes

Contacts
Principal investigator
Name 34788 0
Dr Rebecca Segrave
Address 34788 0
Monash Alfred Psychiatry Research Centre
Level 4, 607 St Kilda Rd
Prahran, VIC
3004
Country 34788 0
Australia
Phone 34788 0
+61 3 9076 6564
Fax 34788 0
Email 34788 0
rebecca.segrave@monash.edu
Contact person for public queries
Name 18035 0
Rebecca Segrave
Address 18035 0
Monash Alfred Psychiatry Research Centre
Level 4, 607 St Kilda Rd
Prahran VIC
3004
Country 18035 0
Australia
Phone 18035 0
+61 3 9076 6564
Fax 18035 0
Email 18035 0
rebecca.segrave@monash.edu
Contact person for scientific queries
Name 8963 0
Dr Rebecca Segrave
Address 8963 0
Monash Alfred Psychiatry Research Centre
Level 4, 607 St Kilda Rd
Prahran VIC
3004
Country 8963 0
Australia
Phone 8963 0
+ 61 3 9076 5030
Fax 8963 0
Email 8963 0
rebecca.segrave@monash.edu

No information has been provided regarding IPD availability


What supporting documents are/will be available?

No Supporting Document Provided



Results publications and other study-related documents

Documents added manually
No documents have been uploaded by study researchers.

Documents added automatically
SourceTitleYear of PublicationDOI
EmbaseEffects of transcranial direct current stimulation and transcranial random noise stimulation on working memory and task-related EEG in major depressive disorder.2023https://dx.doi.org/10.1016/j.bandc.2023.106105
N.B. These documents automatically identified may not have been verified by the study sponsor.