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Obsessive-Compulsive DisorderNCT04217408

Deep Brain Stimulation (DBS) for the Treatment of Refractory Obsessive-compulsive Disorder (OCD)

A study testing Deep brain stimulation in people with Obsessive-Compulsive Disorder, run by Sunnybrook Health Sciences Centre at 1 site in Canada.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Deep brain stimulation for treatment resistant deep brain stimulation Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Obsessive-Compulsive Disorder
What is being tested?
Deep brain stimulation
Could I receive a placebo?
No, everyone receives an active treatment
How many people
10 participants
Where
1 siteCanada
Study dates
1 Sep 2019to 19 Dec 2024
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 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Female or Male patients between age 18-70
  • DSM-V diagnosis of Obsessive Compulsive Disorder (OCD), at least 5-year illness history with a minimum score of 24 on the Yale-Brown Obsessive Compulsive Scale (Y-BOCS).
  • SF-36<40
  • Medication-refractoriness as determined by an adequate dose and duration of psychiatric treatments (including psychotherapy and/or pharmacology) as determined by two psychiatrists associated with the study. Including specifically:
  • Failed adequate trial of two or more medications accepted as first line in the treatment of OCD
  • Attempted augmentation, if tolerated, by at least 1 medications known to be first line treatments for OCD
  • An adequate trial of cognitive behavioural therapy
  • Ability to provide informed consent and comply with all testing, follow-ups and study appointments and protocols

Who cannot join

  • Any past or current evidence of psychosis or mania (patients with co-morbid depression will not be excluded from the study)
  • Active neurologic disease, such as epilepsy
  • Alcohol or substance dependence or abuse in the last 6 months, excluding caffeine and nicotine
  • Current suicidal ideation
  • Any contraindication to MRI scanning
  • No contraindication for DBS surgery
Show all 10Show fewer
  • Presence of significant cognitive impairment
  • Likely to relocate or move out of the country during the study's duration
  • Presence of clinical and/or neurological conditions that may significantly increase the risk of the surgical procedure.
  • Currently pregnant (as determined by history and serum HCG) or lactating; for females of reproductive potential: use of highly effective contraception for at least 1 month prior to screening and agreement to use such a method during study participation

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Sunnybrook Health Sciences Centre

    Toronto, Ontario, M4N 3M5

Other trials in Canada

About this study

Official title: Deep Brain Stimulation (DBS) of the Ventral Capsule/Ventral Striatum (VC/VS) for the Treatment of Refractory Obsessive-compulsive Disorder (OCD)

Deep brain stimulation for treatment resistant deep brain stimulation

Read the detailed description

Subjects will receive bilateral deep brain stimulation to the ventral capsule/ventral striatum. They will receive standard follow-up and device programming over the span of 52 weeks. After that, they will enter a 5 week double blinded crossover phase consisting of 2 weeks of ON or OFF stimulation, separated by 1 week of 'washout', during which stimulation will be OFF.

Being tested
Deep brain stimulation
Medical subject headings
Obsessive-Compulsive Disorder

What participants receive

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

  • Deep brain stimulationDevice

    Active continuous deep brain stimulation of the ventral capsule/ventral striatum

Study groups in NCT04217408
Study groupRoleWhat they receive
ON stimulation followed by OFF stimulationExperimentalAll patients complete the same 52 week open-label phase with active stimulation. After this, they enter a blinded randomized crossover phase of 2 weeks of ON (active) stimulation, followed by 2 weeks of OFF (sham) stimulation
Receives: Device: Deep brain stimulation
OFF stimulation followed by ON stimulationExperimentalAll patients complete the same 52 week open-label phase with active stimulation. After this, they enter a blinded randomized crossover phase of 2 weeks of OFF (sham) stimulation, followed by 2 weeks of ON (active) stimulation
Receives: Device: Deep brain stimulation

What is being measured

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

  1. Quality of Life as measured by the Short-Form 36

    Measured by the short form 36 (SF-36). The scores range from 0-100 with lower numbers indicating a worse quality of life.

    Measured: 12 months compared to baseline

Secondary outcomes (2)
  1. Obsessive compulsive symptoms as measured by the Yale-Brown Obsessive Compulsive Scale

    Change in Yale-Brown Obsessive Compulsive Scale score at 12 months compared to baseline. The scores range from 0-40, with high scores indicating more severe obsessions and compulsions.

    Measured: 12 months

  2. Obsessive compulsive symptoms as measured by the Yale-Brown Obsessive Compulsive Scale during randomization

    Yale-Brown Obsessive Compulsive Scale score during active ON stimulation compared to during OFF stimulation. The scores range from 0-40, with high scores indicating more severe obsessions and compulsions.

    Measured: Recorded at the end of the 2 week ON and OFF stimulation periods, which occur immediately after the 52 week open-label period

Timeline

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

  1. First posted3 Jan 2020
  2. Study start1 Sep 2019
  3. Primary completion19 Dec 2024 (estimated)
  4. Study completion19 Dec 2024 (estimated)

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
Crossover
Model description
1 year of open-label treatment, followed by 5 week double blinded crossover phase consisting of 2 weeks of ON stimulation and 2 weeks of OFF stimulation separated by a 1 week washout period with OFF stimulation.
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
10 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04217408
Sponsor's protocol ID
111-2018
Status last verified
Dec 2023
First submitted
2 Jan 2020
Last updated
8 Dec 2023
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing Deep brain stimulation in people with Obsessive-Compulsive Disorder, run by Sunnybrook Health Sciences Centre 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 8 inclusion and 10 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: status not confirmed, as of the sponsor's last update on 8 Dec 2023. 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. 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?

Results are not available in the source record.

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?

Quality of Life as measured by the Short-Form 36 (time frame: 12 months compared to baseline). 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 8 Dec 2023.

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