European Study of Quality of Life in Resistant OCD Patients Treated by STN DBS (EQOLOC)

November 28, 2023 updated by: University Hospital, Grenoble

European Study of Quality of Life in Resistant OCD Patients Treated by STN DBS Versus Best Medical Treatment

Obsessive-Compulsive Disorder (OCD) is among the most disabling psychiatric disorders as more than 40% of patients are resistant to the standard pharmacological and psychotherapy approaches and about 10% show severe disability and require institutionalization. These resistant patients may benefit from new surgical therapeutic approaches such as Deep Brain Stimulation (DBS) using high frequency stimulation of specific cerebral regions to modulate neural networks. Although promising, these results need nevertheless to be replicated and confirmed within a larger cohort of patients and considering a different main objective, instead of clinical improvement only. Indeed, despite a positive treatment response, adaptive functioning and quality of life may continue to be negatively impacted in OCD. Thus beyond symptom reduction, health-related quality of life (QoL) represents a more important objective of a treatment, as it includes both the individual's functional status and the individual's subjective perception of the impact of the illness on the patient's life. STN DBS induces significant clinical improvement, which may not be proportional to the QoL gain. Consequently, QoL appears to be a better outcome to target in the coming studies than clinical improvement alone. THe investigators thus propose a prospective study assessing the QoL changes of resistant OCD patients under STN DBS+BMT versus Best Medical Treatment (BMT) at 12 months, in order to assess the DBS induced gain in QoL in BMT-managed patients versus BMT alone.

Study Overview

Status

Recruiting

Intervention / Treatment

Detailed Description

The study will focus on an innovative therapeutic strategy (DBS) and on an original objective, quality of life, which is considered to better reflect the impact of a therapeutic strategy. Moreover, the study will help to define the predictive biomarkers /biosignatures of response to STN DBS in OCD.

Study Type

Interventional

Enrollment (Estimated)

60

Phase

  • Not Applicable

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

Study Contact Backup

Study Locations

      • Creteil, France
        • Completed
        • Chu Henri Mondor
      • Grenoble, France
        • Recruiting
        • University Hospital of Grenoble Michallon
        • Contact:
        • Principal Investigator:
          • Mircea Polosan, MD PhD
        • Sub-Investigator:
          • Stéphan Chabardès, MD PhD
        • Sub-Investigator:
          • Anna Castrioto, MD
      • Nice, France
        • Recruiting
        • CHU Nice - Hôpital Pasteur
        • Contact:
        • Contact:
        • Principal Investigator:
          • Denys FONTAINE, MD
        • Sub-Investigator:
          • Bruno GIORDANA, MD
      • Paris, France
        • Recruiting
        • APHP La Pitié Salpêtrière
        • Contact:
        • Sub-Investigator:
          • Carine KARACHI, MD
        • Principal Investigator:
          • Bruno MILLET, MD PhD
      • Paris, France
      • Koln, Germany
        • Recruiting
        • Universitätsklinikum Köln (AöR)
        • Contact:
        • Sub-Investigator:
          • Jens KUHN, MD PhD
        • Principal Investigator:
          • Veerle VISSER-VANDEWALLE, MD
      • Stockholm, Sweden
        • Recruiting
        • Djurfeldt
        • Contact:
        • Sub-Investigator:
          • Diana DJURFELDT, MD PhD
        • Principal Investigator:
          • Anders FYTAGORIDIS, MD PhD
      • Geneve, Switzerland
        • Recruiting
        • Hopitaux Universitaires de Geneve
        • Contact:
        • Sub-Investigator:
          • Shahan MOMJIAN, MD
        • Principal Investigator:
          • Joao FLORES, MD

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 69 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • OCD for > 5 years
  • YBOCS> 25 and/or YBOCS sub-scale >15
  • GAF< 45
  • 3 or more documented SRI trials, including clomipramine (10-12 weeks at adequate dose)
  • SRI augmentation for > 4 weeks with at least one antipsychotic and with one of the following: lithium, clonazepam
  • Adequate trial of CBT (Exposure Therapy and Response Prevention) (intolerance or >15 sessions)
  • Ability to provide informed consent

Exclusion Criteria:

  • Hoarding (if the only OCD symptom)
  • OCD with poor insight (BABS score > 12)
  • Lifetime diagnosis of psychosis or bipolar disorder;
  • Substance abuse or dependence within the previous six months;
  • Baseline Montgomery and Asberg (MADRS) suicidality item (item 10) score >2;
  • Current DSM-5 personality disorder of Cluster A (e.g., paranoid or schizotypal personality disorder) or B (e.g., borderline or antisocial personality disorder);
  • Brain pathology, such as moderate or marked cerebral atrophy, stroke, tumor or previous neurosurgical procedures (i.e. capsulotomy etc), history of cognitive impairment and cognitive deterioration (Addenbrooke's Cognitive Examination ACE score of < 80).
  • Contra-indications to surgery, anaesthesia, or MRI
  • compulsory hospitalization/ care; pregnant or nursing patients

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: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Deep Brain Stimulation
DBS surgical procedure scheduled and realized
surgical procedure
Other Names:
  • DBS
No Intervention: Control group
medical treatment (psycho- and pharmaco-therapy) will continue to be given and optimized according to the defined BMT strategies and criteria

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Assessment of the impact of DBS+BMT versus BMT alone on a measure of Quality of life in resistant OCD patients at 1-year follow-up
Time Frame: 1 year
QOL assessment : scores at SF36
1 year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Psychiatric assessment n°1
Time Frame: 1 year
clinical profile defined by score at YBOCS -Yale Brown Obsessive Compulsive Scale
1 year
Psychiatric assessment n°2
Time Frame: 1 year
clinical profile defined by score at DYBOCS- Dimensional Yale Brown Obsessive Compulsive Scale
1 year
Psychiatric assessment n°3
Time Frame: 1 year
clinical profile defined by score at YMRS (Young Mania Rating Scale)
1 year
Psychiatric assessment n°4
Time Frame: 1 year
clinical profile defined by score at HAMA (Hamilton Rating Scale for Anxiety)
1 year
Psychiatric assessment n°5
Time Frame: 1 year
clinical profile defined by score at STAI (State-Trait Anxiety Inventory)
1 year
Psychiatric assessment n°6
Time Frame: 1 year
clinical profile defined by score at UPPS-P Impulsive Behavior Scale
1 year
Psychiatric assessment n°7
Time Frame: 1 year
clinical profile defined by score at Clinical Global Impression (Severity of OCD)
1 year
Assessment of the impact of DBS+BMT versus BMT alone on a measure of Functioning score n°1
Time Frame: 1 year
Functioning scores : GAF (Global assessment functioning scale)
1 year
Assessment of the impact of DBS+BMT versus BMT alone on a measure of Functioning score n°2
Time Frame: 1 year
Functioning scores : WHODAS 2.0
1 year
side effects
Time Frame: 1 year
Number of patients with side effects related to medical treatment, surgery and to stimulation
1 year
Psychiatric markers n°1
Time Frame: 1 year
scores at Big Five Inventory
1 year
Psychiatric markers n°2
Time Frame: 1 year
scores at BABS (BROWN ASSESSMENT OF BELIEFS SCALE)
1 year
Neurological markers n°3
Time Frame: 1 year
score at UPDRS (Unified Parkinson's Disease Rating Scale)
1 year
Neuropsychological markers n°4
Time Frame: 1 year
Score at OBQ-44 (Obsessive Beliefs Questionnaire)
1 year
Neuropsychological markers n°5
Time Frame: 1 year
Score at MCQ (Metacognitions questionnaires)
1 year
Neuropsychological markers n°6
Time Frame: 1 year
Score at URICA (University Rhode Island Change Assessment Scale)
1 year
Neuropsychological markers
Time Frame: 1 year
Score at Addenbrooke Cognitive Examination (ACE) battery
1 year
Per-op electrophysiological mapping of the STN activity n°1
Time Frame: 1 year
electrophysiological parameters at rest and during OCD provocative tests
1 year
Per-op electrophysiological mapping of the STN activity n°2
Time Frame: 1 year
electrophysiological parameters at rest and during OCD uncertainty test
1 year
Per-op electrophysiological mapping of the STN activity n°3
Time Frame: 1 year
electrophysiological parameters at rest and during OCD emotional test
1 year
Per-op electrophysiological mapping of the STN activity n°4
Time Frame: 1 year
electrophysiological parameters at rest and during OCD cognitive and motor test
1 year
Assessment of the suicidal risk under DBS+BMT vs BMT in resistant OCD
Time Frame: 1 year
Measure of suicidal risk with MADRS scale
1 year

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Mircea Polosan, MD PhD, University Hospital, Grenoble

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.

General Publications

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 (Actual)

September 1, 2016

Primary Completion (Estimated)

July 1, 2026

Study Completion (Estimated)

April 1, 2027

Study Registration Dates

First Submitted

June 15, 2016

First Submitted That Met QC Criteria

July 25, 2016

First Posted (Estimated)

July 26, 2016

Study Record Updates

Last Update Posted (Actual)

November 29, 2023

Last Update Submitted That Met QC Criteria

November 28, 2023

Last Verified

November 1, 2023

More Information

Terms related to this study

Other Study ID Numbers

  • 38RC15.344

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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