Cognitive behavior therapy is the most effective treatment of obsessive-compulsive disorder. However, the majority of treated patients remain symptomatic. The metacognitive therapy by Wells (1997) could achieve substantial gains in first pilot studies. The purpose of this study is to investigate this approach with a randomized controlled trial by comparing metacognitive therapy with exposure and response prevention for obsessive-compulsive disorder.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
37
Metacognitive Therapy for OCD according to Wells (1997)
Exposure and Response Prevention for OCD according to Kozak \& Foa (1997)
Philipps Univerity Marburg, Department of Clinical Psychology and Psychotherapy
Marburg, Hesse, Germany
Change in Symptom Severity (Yale Brown Obsessive-Compulsive Scale; YBOCS) from Pretest to Posttest to Follow-up
Time frame: from Pretest (admission) to Posttest (an expected average of 3 months after admission) to Follow-up (an expected average of 6 months after admission)
Change in Symptom Severity (Padua Inventory; PI) from Pretest to two in-between timepoints to Posttest to Follow-up
Time frame: from Pretest (admission) to two in-between timepoints (an expected average of 5 and 10 weeks after admission) to Posttest (an expected average of 3 months after admission) to Follow-up (an expected average of 6 months after admission)
Change in Metacognitions from Pretest to two in-between timepoints to Posttest to Follow-up
Metacognitions (MCQ), Thought Fusion Inventory (TFI), Thought Action Fusion Scale (TAF-scale), Beliefs About Rituals Inventory (BARI), Stop Signals Questionnaire (SSQ), Detached Mindfulness Questionnaire (DMQ)
Time frame: from Pretest (admission) to two in-between timepoints (an expected average of 5 and 10 weeks after admission) to Posttest (an expected average of 3 months after admission) to Follow-up (an expected average of 6 months after admission)
Change in Obsessive Beliefs (Obsessive-Beliefs Questionnaire, OBQ) from Pretest to two in-between timepoints to Posttest to Follow-up
Time frame: from Pretest (admission) to two in-between timepoints (an expected average of 5 and 10 weeks after admission) to Posttest (an expected average of 3 months after admission) to Follow-up (an expected average of 6 months after admission)
Change in Behavioral Avoidance (Behavioral Avoidance Test, BAT) from Pretest to two in-between timepoints to Posttest to Follow-up
Time frame: from Pretest (admission) to two in-between timepoints (an expected average of 5 and 10 weeks after admission) to Posttest (an expected average of 3 months after admission) to Follow-up (an expected average of 6 months after admission)
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Change in Depression (Beck Depression Inventory, BDI) from Pretest to Posttest to Follow-up
Time frame: from Pretest (admission) to Posttest (an expected average of 3 months after admission) to Follow-up (an expected average of 6 months after admission)
Change in Anxiety (Beck Anxiety Inventory, BAI) from Pretest to Posttest to Follow-up
Time frame: from Pretest (admission) to Posttest (an expected average of 3 months after admission) to Follow-up (an expected average of 6 months after admission)
Change in Patient-Therapist-Alliance from Pretest to two in-between timepoints to Posttest to Follow-up
Self rating and clinician rating of Helping Alliance Questionaire (HAQ) and Working Alliance Inventory (WAI)
Time frame: from Pretest (admission) to two in-between timepoints (an expected average of 5 and 10 weeks after admission) to Posttest (an expected average of 3 months after admission) to Follow-up (an expected average of 6 months after admission)
Change in Symptom Severity (Clinical Global Impressions; CGI) from Pretest to two in-between timepoints to Posttest to Follow-up
Time frame: from Pretest (admission) to two in-between timepoints (an expected average of 5 and 10 weeks after admission) to Posttest (an expected average of 3 months after admission) to Follow-up (an expected average of 6 months after admission)
Treatment expectancy (Treatment Expectancy Questionnaire) after the first treatment session
Time frame: after the first treatment session (an expected average of 1 week after admission)
Satisfaction with the treatment at Posttest
Time frame: immediately after completion of therapy (an expected average of 3 months after admission)
Change in Symptom Severity (Obsessive-Compulsive Disorder Scale; OCD-S) measured before every treatment session
Time frame: from the first treatment session (an expected average of 1 week after admission) to the last treatment session (an expected average of 3 months after admission) on a weekly basis