Online Cognitive Behavioural Therapy Intervention for Body Dysmorphic Disorder

Study Overview
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Brief Summary
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Body Dysmorphic Disorder (BDD) affects 2.3% of the population and is characterized by excessive concerns with imagined or minor defects in physical appearance. Retrospective outcome studies suggest patients affected by BDD don't typically benefit from surgical treatments while cognitive behaviour therapy (CBT) appears to provide symptom - reducing and distress - reducing benefits. Two different 8-week online CBT approaches to assisting individuals with this disorder are compared: one approach will integrate mindfulness meditation methods (in combination with CBT) and one approach will employ CBT methods without reference to mindfulness meditation.

Detailed Description
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Body Dysmorphic Disorder (BDD) affects 2.3% of the population and is characterized by excessive concerns with imagined or minor defects in physical appearance. Retrospective outcome studies suggest patients affected by BDD typically do not benefit from surgical treatments while cognitive behaviour therapy (CBT) appears to provide symptom - reducing and distress - reducing benefits. In this study two different 8-week online CBT approaches to assist individuals with this disorder are compared: one approach will integrate mindfulness meditation methods (in combination with CBT) and one approach will employ CBT methods without reference to mindfulness meditation. The purpose of this comparison is to ascertain whether the inclusions of the two additional intervention modalities, demonstrated effective in other studies, adds to positive outcome effects in this disorder. A primary hypothesis is that the 8 week post-intervention outcomes associated with the CBT-mindfulness approach will show significantly more benefit than the comparison group.

Official Title
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Online Cognitive Behavioural Therapy (CBT) Intervention for Body Dysmorphic Disorder: Comparison of CBT - Mindfulness to CBT Alone

Conditions
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Body Dysmorphic Disorder, Body Image Disturbance

Intervention / Treatment
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* Behavioral: CBT + Mindfulness


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: On the Body Dysmorphic Disorder Questionnaire, responses indicating current BDD status; - Exclusion Criteria: Individuals who are currently receiving weekly structured psychotherapy or who meet DSM-V criteria for severe alcohol/substance use disorder in the past 3 months or demonstrated clinically significant suicidal ideation defined as imminent intent, or attempted suicide in the past 6 months. Individuals of co-morbid diagnoses of borderline personality, schizophrenia, bipolar disorder and/or obsessive compulsive disorder are excluded. -

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 55 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
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: This is a parallel group randomized clinical trial with two active comparison conditions
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Experimental<br>Online cognitive behavioural therapy with the added components of mindfulness meditation | Behavioral: CBT + Mindfulness<br>* Eight weeks of online CBT intervention combined with mindfulness<br>|
| Active Comparator: Active comparator<br>Online cognitive behavioural therapy alone | Behavioral: CBT + Mindfulness<br>* Eight weeks of online CBT intervention combined with mindfulness<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Body Dysmorphic Disorder Symptom Scale | A 55-item scale which asks for presence/absence of symptoms and the degree of severity | Baseline, Post-Intervention at 8 weeks following Baseline | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Patient Health Questionnaire - 9 | A 9-item self report scale that asks for symptoms of depression and anxiety | Baseline, Post-Intervention at 8 weeks following Baseline | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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internet-based intervention with health coaching