- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT01807403
Comparison of DBS Targets in Obsessive-compulsive Disorder (PRESTOC2)
Comparison of the Efficacy of Subthalamic Nucleus, Caudate Nucleus and Nucleus Accumbens Electric Stimulation in Severe and Resistant Obsessive-compulsive Disorder.
Deep brain stimulation (DBS) has been proposed for severe and resistant obsessive-compulsive disorder. This electrical stimulation has been tested on, and shown to be effective at, different targets (subthalamic nucleus, caudate nucleus & nucleus accumbens). However, the efficacies of each target have never been compared directly.
This protocol aims to do so, with the hypothesis that subthalamic (STN) stimulation will be more efficacious.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Deep brain stimulation has been proposed for severe and resistant obsessive-compulsive disorder (OCD). This electrical stimulation has been tested on, and shown to be effective at, different targets (subthalamic nucleus, caudate nucleus & nucleus accumbens). However, the efficacies of each target have never been compared directly.
Therefore, bilateral subthalamic and caudate electrodes will be implanted in severe OCD patients. Efficacy of stimulation at the different targets will be assessed using a double-blind randomised crossover design.
Type d'étude
Inscription (Réel)
Phase
- Phase 3
Contacts et emplacements
Lieux d'étude
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Paris, France, 75013
- Centre d'investigation Clinique Pitié Salpêtrière
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion criteria :
- Age 18 - 60
- OCD according to DSM IV, at least 5 years since diagnosis
- Severe OCD responsible for a clinically significant and objective alteration of psychosocial functioning and suffering: YBOCS score>25, CGI score >= 4 and EGF score <= 40
- Resistance of OCD to at least 3 antidepressants from the serotonin reuptake inhibitors category, including clomipramine, given for at least 12 weeks with doses of at least 80mg/d for fluoxetine, 300mg/d for fluvoxamine, 200mg/d for sertraline, 60mg/d for paroxetine and citalopram, 250mg/d for clomipramine). Plus resistance to each of these 3 antidepressant associated first to risperidone or pimozide for a month then to Lithium carbonate, clonazepam, buspirone or pindolol for a month
- Resistance to at least 2 behavioural and cognitive therapies conducted by as many different specialists, following validated protocols (e.g. exposition and prevention of response)
- Oral and written knowledge of French
- Social security coverage
- Written consent of the patient after clear description of the study
Exclusion criteria :
- cognitive alteration with PM38 score < IQ85
- Other axis 1 disorder according to DSM IV, excepted, global anxiety disorder, social phobia, nicotine dependance, and antecedent of major depressive episodes
- suicidal risk >=2 on item 10 of MADRS (Montgomery Asberg Depression Rating Scale)
- Personality disorder (axis 2 of DSM IV assessed using the SCID II)
- Contra indication to MRI, abnormal brain MRI, other severe intercurrent disease
- Fertile woman without adequate contraception
- Pregnancy
- Forced psychiatric hospitalisation
- Any kind of legal protection
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation croisée
- Masquage: Double
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: Deep brain stimulation of subthalamic nucleus
Pose of bilateral subthalamic and caudate stimulating macroelectrodes with subclavicular pacemaker.Stimulation of subthalamic nucleus
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Pose of bilateral subthalamic and caudate stimulating macroelectrodes with subclavicular pacemaker.
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Expérimental: Deep brain stimulation of caudate nucleus
Pose of bilateral subthalamic and caudate stimulating macroelectrodes with subclavicular pacemaker.
Caudate nucleus stimulation
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Pose of bilateral subthalamic and caudate stimulating macroelectrodes with subclavicular pacemaker.
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Expérimental: Deep brain stimulation of nucleus accumbens
Pose of bilateral subthalamic and caudate stimulating macroelectrodes with subclavicular pacemaker.Nucleus accumbens stimulation.
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Pose of bilateral subthalamic and caudate stimulating macroelectrodes with subclavicular pacemaker.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Severity of symptoms after each phase
Délai: 3 months
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Severity as measured by the Yale-Brown Obsession and Compulsion scale
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3 months
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Severity of symptoms after each phase
Délai: month 0
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Severity as measured by the Yale-Brown Obsession and Compulsion scale
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month 0
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Severity of symptoms after each phase
Délai: 6 months
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Severity as measured by the Yale-Brown Obsession and Compulsion scale
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6 months
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Severity of symptoms after each phase
Délai: 10 months
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Severity as measured by the Yale-Brown Obsession and Compulsion scale
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10 months
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Severity of symptoms after each phase
Délai: 14 months
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Severity as measured by the Yale-Brown Obsession and Compulsion scale
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14 months
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Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Luc Mallet, MD, PhD, Assitance publique - Hôpitaux de Paris
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- P081203
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
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