China Refractory Obsessive-Compulsive Disorder Deep Brain Stimulation Study (CRODS)

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

China Refractory-Obsessive Compulsive Disorder Deep Brain Stimulation Study

Refractory obsessive-compulsive disorder (OCD) is a disabling condition. Deep brain stimulation (DBS) of the nucleus accumbens is the most tested therapeutic avenue for refractory OCD. However, large scale randomized controlled trials to evaluate the effectiveness of this approach are rare.

Study Overview

Study Type

Interventional

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 Locations

    • Guangdong
      • Guangzhou, Guangdong, China, 510370
        • Guangzhou Psychiatric Hospital
    • Shanghai
      • Shanghai, Shanghai, China, 200030
        • Shanghai Mental Health Center
    • Sichuan
      • Chengdu, Sichuan, China, 610041
        • West China Hospital

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 60 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Age between 18 and 60 years.
  2. A primary diagnosis of OCD, defined according to the criteria of the Diagnostic and Statistical Manual of Mental Disorders, fourth edition (DSM-IV).
  3. Chronic: disease duration of more than 5 years.
  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.
  6. Refractory: a lack of response to drug therapy after adequate administration (defined as more than 12 weeks at the maximum tolerated dose) of at least three serotonin-reuptake inhibitors, one of which had to be clomipramine. Adequate behavior therapy, defined as 20 sessions of exposure and response prevention (ERP) with a therapist who has substantial expertise in OCD treatment.

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 criteria, as assessed with the use of the Structured Clinical Interview II.
  3. A current severe major depressive episode, determined according to DSM-IV 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; and no 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: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Bilateral Nucleus Accumbens DBS
6 month period of active bilateral nucleus accumbens DBS
High frequency stimulation applied using Suzhou Sceneray® DBS hardware (1120 electrode, 1180 (S) battery).
Other Names:
  • Active DBS
Sham Comparator: Sham Bilateral Nucleus Accumbens DBS
6 month period of sham bilateral nucleus accumbens DBS
DBS system switched off.
Other Names:
  • Sham DBS

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), 6 months
Baseline (preoperative), 6 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Obsessive-Compulsive Inventory - Revised (OCI-R) Score
Time Frame: Baseline (preoperative), 1 month, 3 months, 6 months, 9 months, 12 months, 18 months, 24 months
Baseline (preoperative), 1 month, 3 months, 6 months, 9 months, 12 months, 18 months, 24 months
Change in Hamilton Anxiety Scale, Hamilton Depression Scale-17, Beck Anxiety Scale, Beck Depression Scale-1 Score
Time Frame: Baseline (preoperative), 1 month, 3 months, 6 months, 9 months, 12 months, 18 months, 24 months
Baseline (preoperative), 1 month, 3 months, 6 months, 9 months, 12 months, 18 months, 24 months
Change in Temperament and Character Inventory revised version (TCI-R) Score
Time Frame: Baseline (preoperative), 6 months, 24 months
Baseline (preoperative), 6 months, 24 months
Iowa Gambling Task (change in task performance scores)
Time Frame: Baseline (preoperative), 1 month, 3 months, 6 months, 9 months, 12 months, 18 months, 24 months
Baseline (preoperative), 1 month, 3 months, 6 months, 9 months, 12 months, 18 months, 24 months
Change in functional magnetic resonance imaging (fMRI) images
Time Frame: Baseline (preoperative), 2 weeks after last ERP session (average)
Baseline (preoperative), 2 weeks after last ERP session (average)
Change in positron emission tomography (PET) brain glucose metabolism images
Time Frame: Baseline (preoperative), 6 months after surgery
Fluoro-D-glucose (FDG) will be utilized to evaluate cerebral metabolism at Baseline (preoperative) and 6 months.
Baseline (preoperative), 6 months after surgery
Quality of life: Global assessment of function
Time Frame: Baseline (preoperative), 2 weeks after last ERP session (average), 6 months after surgery, 24 months after surgery
Baseline (preoperative), 2 weeks after last ERP session (average), 6 months after surgery, 24 months after surgery
Disability: WHO disability assessment 2.0
Time Frame: Baseline (preoperative), 2 weeks after last ERP session (average), 6 months after surgery, 24 months after surgery
Baseline (preoperative), 2 weeks after last ERP session (average), 6 months after surgery, 24 months after surgery
Model Task (change in task performance scores)
Time Frame: Baseline (preoperative), 1 month, 3 months, 6 months, 9 months, 12 months, 18 months, 24 months
Baseline (preoperative), 1 month, 3 months, 6 months, 9 months, 12 months, 18 months, 24 months

Collaborators and Investigators

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

Sponsor

Investigators

  • Principal Investigator: Bomin Sun, MD,PhD, Ruijin Hospital

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

April 1, 2015

Primary Completion (Anticipated)

October 1, 2016

Study Completion (Anticipated)

April 1, 2018

Study Registration Dates

First Submitted

January 23, 2015

First Submitted That Met QC Criteria

March 24, 2015

First Posted (Estimate)

March 25, 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

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.

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