NCT06628752

Brief Summary

The goal of this clinical trial is to evaluate the treatment method of deep brain stimulation (DBS) in patients diagnosed with severe and treatment-resistant obsessive-compulsive disorder (OCD). DBS will be administered into the brain area of the bed nucleus of stria terminalis (BNST). The main research questions are:

  • Does active DBS in BNST reduce OCD symptoms (primary outcome)?
  • Does active DBS in BNST reduce anxiety or depressive symptoms and improve the level of daily function? The participants will be randomized to active or sham DBS in the BNST for six months and we will measure the outcomes before DBS surgery, and six months post-surgery. After the randomization phase, the participants will enter an open-label phase and receive continuous DBS in BNST. Yearly follow-ups will be conducted. The outcomes will be measured through interviews using validated psychometric scales.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
26

participants targeted

Target at below P25 for not_applicable

Timeline
56mo left

Started Sep 2018

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress63%
Sep 2018Dec 2030

Study Start

First participant enrolled

September 11, 2018

Completed
6.1 years until next milestone

First Submitted

Initial submission to the registry

October 3, 2024

Completed
5 days until next milestone

First Posted

Study publicly available on registry

October 8, 2024

Completed
6.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2030

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2030

Last Updated

October 17, 2024

Status Verified

October 1, 2024

Enrollment Period

12.3 years

First QC Date

October 3, 2024

Last Update Submit

October 15, 2024

Conditions

Keywords

Obsessive-Compulsive DisorderDeep Brain StimulationRandomized Controlled Trial

Outcome Measures

Primary Outcomes (1)

  • Yale-Brown Obsessive Compulsive Scale, Y-BOCS

    Validated psychometric scale that measures symptoms of OCD.

    From enrollment to the end of treatment after 6 months.

Secondary Outcomes (5)

  • Hamilton Anxiety Scale, HAS

    From enrollment to the end of treatment after 6 months.

  • Hamilton Depression scale, HAMD

    From enrollment to the end of treatment after 6 months.

  • Montgomery Asberg Depression Rating Scale, MADRS

    From enrollment to the end of treatment after 6 months.

  • Global Assessment of Functioning, GAF

    From enrollment to the end of treatment after 6 months.

  • Clinical Global Impression rating scale, CGI

    From enrollment to the end of treatment after 6 months.

Study Arms (2)

Active stimulation

ACTIVE COMPARATOR

Deep brain stimulation - active stimulation

Device: Deep brain stimulation

Sham stimulation

SHAM COMPARATOR

Deep brain stimulation - no stimulation

Device: Deep brain stimulation

Interventions

Stimulation through a device implanted bilaterally into deep brain structures.

Active stimulationSham stimulation

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • OCD diagnosed according to the criteria in the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV).
  • The patients should have received at least 16 sessions of cognitive behavioral therapy, tried three different serotonergic antidepressants in adequate doses for three months, and one serotonergic antidepressant in combination with a neuroleptic drug.
  • Severe OCD symptoms: YBOCS ≥ 25 points.
  • Substantial incapacity because of his/her symptoms.
  • Duration of symptoms: 5 years minimum.
  • Understand the consequences of participation in the study and give informed written consent.

You may not qualify if:

  • Not being able to understand the consequences of the treatment.
  • Diagnosed with intellectual disability according to DSM-IV.
  • Not meeting the requirements for the neurosurgery procedure.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Umeå University

Umeå, Västerbotten County, 90187, Sweden

RECRUITING

MeSH Terms

Conditions

Obsessive-Compulsive Disorder

Interventions

Deep Brain Stimulation

Condition Hierarchy (Ancestors)

Anxiety DisordersMental Disorders

Intervention Hierarchy (Ancestors)

Electric Stimulation TherapyTherapeuticsSurgical Procedures, Operative

Study Officials

  • Patric Blomstedt, Professor

    Umeå University

    STUDY CHAIR

Central Study Contacts

Viktoria Johansson, PhD

CONTACT

Matilda Naesstrom, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Masking Details
The participant and the outcome assessor are blinded to whether the participant receives active or sham stimulation.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Randomized controlled trial.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 3, 2024

First Posted

October 8, 2024

Study Start

September 11, 2018

Primary Completion (Estimated)

December 31, 2030

Study Completion (Estimated)

December 31, 2030

Last Updated

October 17, 2024

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will not share

We will not share IPD until the study is finished and results are published.

Locations