Novel Deep Brain Stimulation in Ventral Capsule and Stratum for Refractory Obsessive-Compulsive Disorder

December 4, 2016 updated by: Bomin Sun, Ruijin Hospital

Novel Deep Brain Stimulation in Ventral Capsule and Stratum for Refractory Obsessive-Compulsive Disorder: A Pilot Study

Refractory obsessive-compulsive disorder (OCD) is a disabling condition. Deep brain stimulation (DBS) of ventral capsule/ventral striatum(VC/VS) is potentially the most effective treatment for refractory OCD. However, the affecting area of traditional electrodes is limited and not specific to VC/VS. The investigators designed a novel electrode, 2 mental contacts(3mm contact-2mm space-3 mm contact) could be implanted in ventral striatum and the other upper 2 contacts(4mm space-3mm contact-4mm space-3mm contact)that can be implanted in ventral capsule simultaneously, which the investigators believe will be more effective due to better compatibly with anatomical features of target area. This trial is to evaluate the effectiveness and safety of this approach.

Study Overview

Status

Unknown

Study Type

Interventional

Enrollment (Anticipated)

8

Phase

  • Phase 2
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

  • Name: Chencheng Zhang, MD
  • Phone Number: +8618217122884
  • Email: i@cczhang.com

Study Contact Backup

  • Name: Chencheng Zhang, MD
  • Phone Number: +8618217122884
  • Email: i@cczhang.org

Study Locations

    • Shanghai
      • Shanghai, Shanghai, China, 200025
        • Recruiting
        • Shanghai Ruijin Hospital
        • Contact:
          • Chencheng Zhang, MD
          • Phone Number: +86 18217122884
          • Email: i@cczhang.com

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:

  1. Age between 18 and 65 years.
  2. A primary diagnosis of OCD, defined according to the criteria of the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-V).
  3. Chronic: at least a 3-year history of OCD symptoms with psychosocial dysfunction
  4. Severity: a score on the Yale-Brown Obsessive Compulsive Scale (Y-BOCS) of more than 25 or one subscale score of more than 15 ; a score for severity of illness on the Clinical Global Impression (CGI) scale of more than 4.
  5. Disability: a score on the Global Assessment Functioning (GAF) scale of less than 45 or a score on Sheehan Disability Scale more than 24.
  6. Refractory: a lack of response to drug therapy after adequate administration, defined as more than two types of serotonin reuptake inhibitors at the maximum tolerated dose for more than 12 weeks. Adequate behavior therapy, defined as more than 20 sessions psychotherapy with experienced therapist.
  7. OCD medication regimen is stable for at least 4 weeks before enrollment.

Exclusion Criteria:

  1. Schizophrenic disorder; bipolar disorder; substance abuse or dependence (except for dependence on nicotine), as assessed with the use of the Mini-International Neuropsychiatric Interview (MINI 6.0.0).
  2. Cluster A or B personality disorder according to DSM-IV-TR criteria, as assessed with the use of the Structured Clinical Interview II.
  3. A current severe major depressive episode, determined according to DSM-V criteria (as assessed with the use of the MINI 6.0.0) and defined by the Hamilton Depression Rating Scale-17 (HAMD) score of more than 20 and a risk of suicide.
  4. Abnormal cognitive status (measured by MoCA), abnormal findings on functional magnetic resonance imaging (MRI) of the brain, or contraindications to surgery or anesthesia.

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: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: CROSSOVER
  • Masking: QUADRUPLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Active stimulation
Stimulator on followed by off
Sham Comparator: Sham stimulation
Stimulator off followed by on

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Change in Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) Score
Time Frame: Baseline (preoperative), 1 month, 3 months, 5 months, 6 months, 8 months, 12 months, 18 month, 24 month
Baseline (preoperative), 1 month, 3 months, 5 months, 6 months, 8 months, 12 months, 18 month, 24 month

Secondary Outcome Measures

Outcome Measure
Time Frame
Change in Obsessive-Compulsive Inventory - Revised (OCI-R) Score
Time Frame: Baseline (preoperative), 1 month, 3 months, 5 months, 6 months, 8 months, 12 months, 18 month, 24 month
Baseline (preoperative), 1 month, 3 months, 5 months, 6 months, 8 months, 12 months, 18 month, 24 month
Adverse Events
Time Frame: Baseline (preoperative), 1 month, 3 months, 5 months, 6 months, 8 months, 12 months, 18 month, 24 month
Baseline (preoperative), 1 month, 3 months, 5 months, 6 months, 8 months, 12 months, 18 month, 24 month
Change in Hamilton Anxiety Scale, Hamilton Depression Scale-17 Score
Time Frame: Baseline (preoperative), 1 month, 3 months, 5 months, 6 months, 8 months, 12 months, 18 month, 24 month
Baseline (preoperative), 1 month, 3 months, 5 months, 6 months, 8 months, 12 months, 18 month, 24 month
Functional magnetic resonance imaging (fMRI) images
Time Frame: Baseline (preoperative)
Baseline (preoperative)
Quality of life: Global assessment of function
Time Frame: Baseline (preoperative), 8 months, 12 months, 24 month
Baseline (preoperative), 8 months, 12 months, 24 month
Disability: WHO disability assessment 2.0
Time Frame: Baseline (preoperative), 8 months, 12 months, 24 month
Baseline (preoperative), 8 months, 12 months, 24 month
Neurobehavior Task (Decision making task, such as Model task, IGT)
Time Frame: Baseline (preoperative), 8 months, 12 months, 24 month
Baseline (preoperative), 8 months, 12 months, 24 month
Neurobehavior Task (Working memory task, such as N-back)
Time Frame: Baseline (preoperative), 8 months, 12 months, 24 month
Baseline (preoperative), 8 months, 12 months, 24 month
Disability: Sheehan Disability Scale
Time Frame: Baseline (preoperative), 8 months, 12 months, 24 month
Baseline (preoperative), 8 months, 12 months, 24 month
Change in Obsessional beliefs questionnaire (OBQ-44) Score
Time Frame: Baseline (preoperative), 1 month, 3 months, 5 months, 6 months, 8 months, 12 months, 18 month, 24 month
Baseline (preoperative), 1 month, 3 months, 5 months, 6 months, 8 months, 12 months, 18 month, 24 month
Change in Adult Temperament Questionnaire (ATQ-77) Score
Time Frame: Baseline (preoperative), 8 months, 12month, 24 month
Baseline (preoperative), 8 months, 12month, 24 month
Change in Temperament and Character Inventory Revised (TRI-R) Score
Time Frame: Baseline (preoperative), 8 months, 12month, 24 month
Baseline (preoperative), 8 months, 12month, 24 month
Cerebral glucose metabolism measured by PET-CT images
Time Frame: Baseline (preoperative), 12 month
Baseline (preoperative), 12 month

Collaborators and Investigators

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

Sponsor

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

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

October 1, 2015

Primary Completion (Anticipated)

October 1, 2017

Study Completion (Anticipated)

April 1, 2018

Study Registration Dates

First Submitted

October 26, 2015

First Submitted That Met QC Criteria

October 28, 2015

First Posted (Estimate)

October 29, 2015

Study Record Updates

Last Update Posted (Estimate)

December 6, 2016

Last Update Submitted That Met QC Criteria

December 4, 2016

Last Verified

December 1, 2016

More Information

Terms related to this study

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.

Clinical Trials on Obsessive-Compulsive Disorder

Clinical Trials on deep brain stimulation system

3
Subscribe