Deep Brain Stimulation and Obsessive-compulsive Disorder
STOC2
Treatment of Severe and Resistant Obsessive-compulsive Disorder by High-frequency Stimulation of the Ventral Striatum and the Subthalamic Nucleus
1 other identifier
interventional
31
1 country
14
Brief Summary
Obsessive-compulsive disorder (OCD) is a relatively common psychiatric condition, which is classically treated by antidepressant medications in combination with psychotherapies. However, both these conventional therapeutic approaches fail to sufficiently improve obsessive-compulsive symptoms in 20-30% of cases. From these considerations, deep brain stimulation (DBS), as a reversible and adjustable surgical procedure, has recently been introduced in the field of resistant OCD. DBS currently uses electrodes with four contacts on each lead, which are bilaterally implanted into the chosen brain structure. DBS consists of the delivery of a high-frequency current through the quadripolar electrodes connected to a battery powered pulse-generating device. Several clinical investigations have shown that DBS, primarily targeting either the ventral striatum (VS) or the subthalamic nucleus (STN), as brain sites of interest because of their particular involvement in the production of OCD symptoms, is able to produce an approximately 40% or greater reduction in clinical symptom intensity in severely chronic and incapacitating forms of OCD. These promising findings lead to propose a comparison of the efficacy, safety and tolerability of DBS choosing either the VS or STN as brain target by conducting a large controlled trial and including a medico-economic analysis for assessing the classical cost/efficacy ratio. In this way, the present study is expected to promote and highlight the importance of DBS, as an effective, safe, well-tolerated and cost-relevant surgical approach for the management of resistant OCD.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_3
Started Apr 2011
Longer than P75 for phase_3
14 active sites
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
First Submitted
Initial submission to the registry
April 4, 2011
CompletedStudy Start
First participant enrolled
April 4, 2011
CompletedFirst Posted
Study publicly available on registry
April 5, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2019
CompletedFebruary 6, 2020
February 1, 2020
8 years
April 4, 2011
February 5, 2020
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Combination of three criteria (composite criterion), as follows: a. Y-BOCS score ≤ 16 / and b. Technical feasibility (each leads in the target) / and c. Safety, as assessed by any serial adverse event
Month 13 : one year after stimulation
Secondary Outcomes (14)
Remission as defined by a Y-BOCS score ≤ 16 at M13
Month 13 : one year after stimulation
Number of electrode contacts correctly located within the chosen brain target (0, 1 or 2)
End of surgical procedure (day 1)
Monitoring of psychological and somatic complaints made spontaneously by the patient over the course of the present trial, in combination to the semi-structured interview for collecting side effects
Every 3 months from Month 1 to Month 13
Scores on neuropsychological tests exploring all executive functions
Every 3 months from Month 1 to Month 13
Percentage change in the total Y-BOCS score from M1 to M13
Every 3 months from Month 1 to Month 13
- +9 more secondary outcomes
Study Arms (2)
DBS of subthalamic nucleus
ACTIVE COMPARATORDBS of ventral striatum
ACTIVE COMPARATORInterventions
In a first time: Implantation of DBS electrodes, stereotactically, in each hemisphere into the targeted brain structure under local anesthesia. In a second time (next week): installation of the deep brain neurostimulator and connection to the electrodes implanted under general anesthesia. And one month later: beginning of the stimulation.
Eligibility Criteria
You may qualify if:
- Age comprised between 18 and 60 years
- History of OCD for at least 5 years according to the DSM-IV-TR criteria and characterized by a "good insight", as determined by the BABS ("Brown Assessment of Beliefs Scale")
- Severe form of OCD, as evidenced by:
- a score ≥ 25 on the Y-BOCS
- a score \> 4 on the CGI scale
- a score =\< 40 on the GAF ("global assessment of functioning)
- Lack of therapeutic effects of at least 3 antidepressants selectively blocking serotonin reuptake (SSRI) at least 12 consecutive weeks at the maximal tolerated dose (up to 80 mg/day for fluoxetine, 300 mg/day for fluvoxamine, 200 mg/day for sertraline, 60 mg/day for paroxetine, 60mg/day for citalopram and 250 mg/day for clomipramine) prescribed alone and in combination for at least 1 month with: 1) risperidone or olanzapine or aripiprazole or quetiapine, 2) clomipramine
- Lack of therapeutic effects of behavioral therapy with two different therapists using conventional techniques primarily based on exposure with prevention of ritualized response
- Understand and accept the design and constraints of the present study
- Be a beneficiary or member of health insurance plan
- Provide written consent to the study after receiving clear information
You may not qualify if:
- Patient with cognitive impairment with a Mattis scale score ≤ 130
- Patient with other DSM-IV-TR axis I diagnoses (schizophrenia, bipolar, substance abuse or substance dependence), except for generalized anxiety disorder, social phobia or nicotine dependence
- Patient with high suicide risk, as indicated by a score ≥ 2 on the MADRS (item 10)
- Patient with personality disorder corresponding to the clusters A and B, as assessed with the SIDP-IV ("Structured Interview for DSM-IV Personality")
- Patient with contraindication for MRI scanning, abnormal brain MRI or serious intercurrent disease
- Patient with contraindication for surgery or anesthesia
- Patient currently treated with anticoagulant or antiplatelet drug
- Be a woman of childbearing age without effective contraception
- Be hospitalized under constraint
- Be under guardianship procedures
- Prohibition on participation in other research, apart from any other non-interventional research
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (14)
Bordeaux University Hospital
Bordeaux, 33000, France
Clermont-Ferrand University Hospital
Clermont-Ferrand, 63003, France
Henri Mondor Hospital
Créteil, 94010, France
Grenoble University Hospital
Grenoble, 38043, France
Lille University Hospital
Lille, 59037, France
Lyon University Hospital
Lyon, 69229, France
Marseille University Hospital
Marseille, 13385, France
Nice University Hospital
Nice, 06202, France
Pitié-Salpêtrière Hospital
Paris, 75651, France
Sainte-Anne Hospital
Paris, 75674, France
Poitiers University Hospital
Poitiers, 86021, France
Rennes University Hospital
Rennes, 35033, France
Strasbourg University Hospital
Strasbourg, 67091, France
Toulouse University Hospital
Toulouse, 31059, France
Related Publications (2)
Aouizerate B, Cuny E, Bardinet E, Yelnik J, Martin-Guehl C, Rotge JY, Rougier A, Bioulac B, Tignol J, Mallet L, Burbaud P, Guehl D. Distinct striatal targets in treating obsessive-compulsive disorder and major depression. J Neurosurg. 2009 Oct;111(4):775-9. doi: 10.3171/2009.2.JNS0881.
PMID: 19284243BACKGROUNDMallet L, Polosan M, Jaafari N, Baup N, Welter ML, Fontaine D, du Montcel ST, Yelnik J, Chereau I, Arbus C, Raoul S, Aouizerate B, Damier P, Chabardes S, Czernecki V, Ardouin C, Krebs MO, Bardinet E, Chaynes P, Burbaud P, Cornu P, Derost P, Bougerol T, Bataille B, Mattei V, Dormont D, Devaux B, Verin M, Houeto JL, Pollak P, Benabid AL, Agid Y, Krack P, Millet B, Pelissolo A; STOC Study Group. Subthalamic nucleus stimulation in severe obsessive-compulsive disorder. N Engl J Med. 2008 Nov 13;359(20):2121-34. doi: 10.1056/NEJMoa0708514.
PMID: 19005196BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
BENARD Antoine, MD
University Hospital Bordeaux, France
- PRINCIPAL INVESTIGATOR
Emmanuel CUNY, MD
University Hospital Bordeaux, France
- PRINCIPAL INVESTIGATOR
Bruno AOUIZERATE, MD-PhD
Charles Perrens hospital, Bordeaux, France
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 4, 2011
First Posted
April 5, 2011
Study Start
April 4, 2011
Primary Completion
April 1, 2019
Study Completion
April 1, 2019
Last Updated
February 6, 2020
Record last verified: 2020-02