Internet Cognitive Behavior Therapy (CBT) for Obsessive Compulsive Disorder (OCD)

Study Overview
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Brief Summary
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The main aim of this study is to test whether cognitive behavior therapy could be effective in treating obsessive compulsive disorder. Here, the investigators test the in group effects of a 15 week long treatment delivered via the Internet for residents in Stockholm County.

Official Title
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Internet-based Cognitive Behavior Therapy for Obsessive Compulsive Disorder: A Pilot Study

Conditions
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Obsessive Compulsive Disorder

Intervention / Treatment
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* Behavioral: Internet CBT


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Diagnosed with Obsessive compulsive disorder according to the DSM criteria Be at least 18 years old YBOCS >7 Exclusion Criteria: other primary diagnosis substance abuse, psychosis, bipolar disorder, suicidal ideation, adjusted pharmacological treatment the last two months current psychological treatment for OCD, been treated with CBT the last two years, serious somatic disease, Y---BOCS>31 hoarding as primary OCD subtype

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Internet CBT<br>Internet-delivered cognitive behavioral therapy with therapist support. | Behavioral: Internet CBT<br>* Internet-delivered cognitive behavioral therapy with therapist support.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change from Baseline of obsessions and compulsions after 15 weeks and 6 months after treatment. | Yale Brown Obsessive Compulsive Scale (Y-BOCS) | Psychiatrist visit at baseline, after 15 weeks of treatment and 6 months after treatment. | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change from Baseline of cost data after 15 weeks and 6 months after treatment. | Trimbos and Institute of Medical Technology Assessment Cost Questionnaire for Psychiatry. In this questionnaire, patients register their monthly health care consumption (e.g. GP visits) as well as time spent in informal health enhancing activities (e.g. self-help groups and informal care from friends). In addition, work loss and work cutback both at work and in the domestic realm is measured. | Self-ratings at baseline, after 15 weeks of treatment and 6 months after treatment. | 
| Change from Baseline of depressive symptoms after 15 weeks and 6 months after treatment. | The Montgomery Åsberg Depression Rating Scale | Sel-ratings at baseline, after 15 weeks of treatment and 6 months after treatment. | 
| Change from Baseline of obsessions and compulsions after 15 weeks and 6 months after treatment. | Obsessions and Compulsions Inventory Revised | Self-ratings at baseline, after 15 weeks of treatment and at 6 months after treatment. | 
| Change from Baseline of quality of life after 15 weeks and 6 months after treatment | EuroQol | Self-ratings at baseline, after 15 weeks of treatment and at 6 months after treatment. | 
| Change from Baseline of quality of life after 15 weeks and 6 months after treatment | Quality of life inventory | Self-ratings at baseline, after 15 weeks of treatment and at 6 months after treatment. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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OCD, CBT, Reducing OCD symptoms