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Group schematherapy versus group cognitive behavioral therapy for social anxiety disorder with comorbid avoidant personality disorder.


- candidate number14593
- NTR NumberNTR3921
- ISRCTNISRCTN wordt niet meer aangevraagd.
- Date ISRCTN created
- date ISRCTN requested
- Date Registered NTR25-mrt-2013
- Secondary IDs41303 METC
- Public TitleGroup schematherapy versus group cognitive behavioral therapy for social anxiety disorder with comorbid avoidant personality disorder.
- Scientific TitleGroup schematherapy versus group cognitive behavioral therapy for social anxiety disorder with comorbid avoidant personality disorder.
- ACRONYM
- hypothesisThe hypothesis is that GST will be more effective because it also explicitly focuses on the associated personality problems.
- Healt Condition(s) or Problem(s) studiedSocial Anxiety Disorder, Avoidant Personality Disorder
- Inclusion criteriaPatients aged between 18 and 65 with primary diagnoses of social anxiety disorder on axis I and comorbid avoidant personality disorder on axis-II (i.e. the principal focus of attention of treatment, according to both patient and clinical staff) will be included in the study. Other inclusion criteria are willingness, motivation and practical ability to attend 30 sessions of group therapy and to refrain from treatment or counseling outside the context of the present trial. The use of antidepressant medication or benzodiazepine will be permitted, under the condition that the medication dose has been stable for at least 3 months before inclusion and patients are willing not to change the dosage or change medication during the active phase of the trial. Furthermore, patients have to be willing to complete daily homework assignments between sessions and have to sign written informed consent to participate in the study.
- Exclusion criteriaExclusion criteria will be a primary Axis-I diagnosis of substance abuse or dependence which needs detoxification (after successful detoxification patients can participate), suicidality, and the presence of psychotic or bipolar symptoms because these conditions could interfere with the measurement and treatment procedures and suggest an immediate need for alternative interventions. Other exclusion criteria are a primary Axis II diagnosis of a Borderline, antisocial, schizoid, schizotypal personality disorder (because they need highly specialized treatment) and IQ less than 80 and Problems with Dutch language (talking, reading, writing).
- mec approval receivedyes
- multicenter trialyes
- randomisedyes
- masking/blindingNone
- controlActive
- groupParallel
- Type2 or more arms, randomized
- Studytypeintervention
- planned startdate 1-sep-2013
- planned closingdate1-sep-2018
- Target number of participants128
- Interventions1. Group Schema Therapy (GST) is a recently developed treatment for personality disorders. GST is shorter, more directive, confrontative, and integrative (using experiential, cognitive, and behavioral techniques, addressing childhood and present) than traditional psychotherapies.

2. Group Cognitive Behavioral Therapy (GCBT) will consist of cognitive and exposure elements proven effective in the treatment of social anxiety disorder.

Both therapies will be given in 30 sessions of 90 minutes.
- Primary outcome1. Mini-International Neuropsychiatric Interview (MINI) will be used to obtain DSM-IV diagnoses for inclusion;
2. Structured Clinical Interview for DSM Axis II Disorders (SCID II) will be used to assess the presence versus absence of avoidant personality disorder and comorbid Axis II diagnoses;
3. The clinician-administered version of the Liebowitz Social Anxiety Scale (LSAS-CA) will be used to assess the range of anxiety in social interaction and performance in situations which patients with social anxiety disorder may fear.
- Secondary outcome1. Schemamode Inventory II (SMI-2);
2. The self-report version of the Liebowitz Social Anxiety Scale (LSAS-SR);
3. Beck Depression Inventory-II (BDI-II);
4. World Health Organization Quality of Life Bref (WHOQOL-Bref);
5. Difficulties in Emotion Regulation Scale (DERS); The Rosenberg Self-Esteem Scale;
6. The Interview for Traumatic Events in Childhood (ITEC).
- Timepoints1. M 1 - 3: Preparations;
2. M 3 - 24: Screening (M0) and treatment;
3. M 9 29: Midtests (M1);
4. M 14 34: Posttests (M2);
5. M 20 - 40: 6- month follow-up 6 (M3);
6. M 26 - 46: 12- month follow-up (M4);
7. M 26 60: Analyses and publications.
- Trial web siteN/A
- statusplanned
- CONTACT FOR PUBLIC QUERIESDr. Anja Greeven
- CONTACT for SCIENTIFIC QUERIESDr. Anja Greeven
- Sponsor/Initiator PSYQ Haaglanden
- Funding
(Source(s) of Monetary or Material Support)
PsyQ
- PublicationsN/A
- Brief summarySocial phobia with comorbid avoidant personality disorder has a high prevalence and is associated with serious psychosocial problems and high societal costs. The current multidisciplinary guidelines advice to offer prolonged CBT in case of social anxiety disorder with avoidant personality disorder. There is increasing evidence for the effectiveness of group schema therapy (GST) for personality disorders. GST focuses on changing the underlying dysfunctional schemas and coping strategies. Until now, it is unknown whether GST for social phobia and comorbid avoidant personality disorder is more effective than CBT.
- Main changes (audit trail)
- RECORD25-mrt-2013 - 8-apr-2013


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