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DepressionNCT05555056

Enhancing the Effectiveness of Cognitive Behavioral Therapy Using Non-invasive Brain Stimulation

A study testing MxN-9 HD-tES Stimulator (Soterix Inc.) in people with Depression and Anxiety, run by University of Manitoba at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of the proposed study is to examine if a repeated treatment of High Definition Transcranial Direct Current Stimulation (HD-tDCS) can increase the functional connectivity between the left ventrolateral prefrontal cortex and posterior cingulate, which may further enhance the effects of cognitive behavioral… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
What is being tested?
MxN-9 HD-tES Stimulator (Soterix Inc.)
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
20 participants
Where
1 siteCanada
Study dates
1 Sep 2023to 1 Apr 2026
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • all patients who have agreed to participate in virtual mental health treatment at health care sites throughout Manitoba. Eligible participants will be those enrolled in a range of mental health programs, including CBT, DBT, virtual hospital wards, and group-based treatment (e.g., CBTm, Managing Difficult Emotions, etc). The target population will also include providers and decision makers offering virtual mental health programs. Individuals must meet the following criteria to be eligible to participate in the study: 1) must be a patient/client enrolled in a virtual mental health program OR a provider/decision maker offering a virtual mental health program, and 2) located within Manitoba

Who cannot join

  • contraindication for MRI (e.g., metallic implants and claustrophobia)

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • University of Manitoba

    Winnipeg, Manitoba, R3E 0J9

Other trials in Canada

About this study

The purpose of the proposed study is to examine if a repeated treatment of High Definition Transcranial Direct Current Stimulation (HD-tDCS) can increase the functional connectivity between the left ventrolateral prefrontal cortex and posterior cingulate, which may further enhance the effects of cognitive behavioral therapy with mindfulness classes.

Being tested
MxN-9 HD-tES Stimulator (Soterix Inc.), Sham Stimulation
Medical subject headings
Depression, Anxiety Disorders, Stress Disorders, Post-Traumatic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MxN-9 HD-tES Stimulator (Soterix Inc.)Device

    Patients will be stimulated with high definition transcranial direct current stimulation (HD-tDCS) for 5 weeks (every weekdays; one session per day). In each session, a constant current at 2mA will be passed on the target brain areas for 20 minutes.

  • Sham StimulationDevice

    The same stimulation protocol will be used as in Active stimulation except that a sham mode will be selected in the stimulator machine.

Study groups in NCT05555056
Study groupRoleWhat they receive
Active StimulationActive comparatorMxN-9 HD-tES Stimulator (Soterix Inc.) will be used to deliver direct current (High-Definition Transcranial Direct Current Stimulation) to the target brain areas via electrodes and conducive gels. A constant current will be applied for 20 minutes with peak current of 2 mA. The 9 electrodes (8 channels + 1 ground) positions and current intensity have been determined based on computer simulation using HDTargets software (Soterix Inc.) that results in maximum focal current on the left VLPFC (x=-50, y=+26, z=+8) and the PCC (x=1, y=-61, z=38) with inward field orientation.
Receives: Device: MxN-9 HD-tES Stimulator (Soterix Inc.)
Inactive StimulationSham comparatorThe current will be applied for 30 seconds ramp-up followed by 30 seconds ramp-down, and thus no active stimulation will be administered except for the initial and last 1 minutes of 20 minute stimulation duration.
Receives: Device: Sham Stimulation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Functional Connectivity

    Functional Connectivity between the targeted brain regions measured by resting state fMRI (level of synchronous fMRI signal, standardized)

    Measured: Change from Baseline Functional Connectivity after 5 month HD-tDCS/CBTm treatment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Sep 2022
  2. Study start1 Sep 2023
  3. Primary completion1 Apr 2026
  4. Study completion1 Apr 2026

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Thirty participants among those who are enrolled in the parent clinical trial will be recruited. Participants will receive 5-week CBTm treatment and a battery of psychological assessment as part of the parent clinical trial. Individuals enrolled in the current study will receive daily HD-tDCS during the period of CBTm treatment (5-week). Half of the individuals will receive real stimulation and the other half will receive sham stimulation. Participants will be scanned with MRI before and after the 5-week treatment. EEG data will be collected before (10 minutes), during (20 minutes) and after (20 minutes) each HD-tDCS session .
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05555056
Sponsor's protocol ID
HS25578
Status last verified
Apr 2026
First submitted
20 Sep 2022
Last updated
1 May 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes

Questions about this trial

What is this clinical trial studying?

A study testing MxN-9 HD-tES Stimulator (Soterix Inc.) in people with Depression and Anxiety, run by University of Manitoba at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 1 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Functional Connectivity (time frame: Change from Baseline Functional Connectivity after 5 month HD-tDCS/CBTm treatment). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 May 2026.

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