Evaluating a Group Cognitive Behavioural Therapy Program for Adults with Muscle Dysmorphia

Not Applicable

Recruiting

• Conditions: Mental Health - Other mental health disorders; Muscle Dysmorphia

• Registration Number: ACTRN12622000945729
• Lead Sponsor: The University of Sydney

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2022-07-05
• Last Update Posted: 13 February 2023

Recruitment & Eligibility

• Status: Recruiting
• Sex: All
• Target Recruitment: 14

Inclusion Criteria

•Age greater than or equal to 18 years.
•Currently living in Australia.
•Self-report that they think about not being big enough at least once per day (assessed on a pre-screening webpage).
•Meet diagnostic criteria for MD (based on both DSM-5 and Pope et al., 1997 criteria) – assessed via a clinical diagnostic interview.
•Receive a letter of medical clearance from their GP – includes blood test assessment.
•Willingness to provide informed consent and attend the entire 8-week treatment program.
•Access to a private space with sufficiently technology to engage in telehealth sessions (i.e., laptop or phone with video camera and stable internet connection).

Exclusion Criteria

•Non-proficient English speaker.
•Presence of significant medical instability (i.e., GP unable to provide a letter of medical clearance).
•Active suicidality, or self-harm behaviours, or meeting clinical threshold for suicide risk – assessed via the clinical diagnostic interview and the Suicide Behaviors Questionnaire-Revised (SBQ-R) where a score greater than or equal to 7 indicates notable suicide risk in the general population.
•Comorbid Major Depressive Disorder (MDD) – assessed via Patient Health Questionnaire-9 (PHQ-9) where a score greater than or equal to 10 indicates clinical depression that warrants treatment and could interfere with participation in the treatment program.
•Prescribed a new psychotropic medication (e.g., SSRIs) in the past month or expects to be prescribed a new psychotropic medication at any point throughout the 8-week treatment program.
•Currently involved in other active psychological treatment or plans to engage in other active psychological treatment over the course of the 8-week treatment program.

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Change in mean muscle dysmorphia symptomology assessed using the Muscle Dysmorphia Inventory (MDI)<br> [Pre-intervention, post-intervention (primary endpoint), and 3-month follow-up post-intervention];Change in mean muscle dysmorphia symptomology assessed using the Muscle Dysmorphic Disorder Inventory (MDDI)[Pre-intervention, post-intervention (primary endpoint), and 3-month follow-up post-intervention. ];Change in mean muscle dysmorphia symptomology assessed using the Muscle Appearance Satisfaction Scale (MASS)[Pre-intervention, post-intervention (primary endpoint), and 3-month follow-up post-intervention]

Secondary Outcome Measures

Name	Time	Method
Changes in mean compulsive exercise scores (Compulsive Exercise Test)[Pre-intervention, post-intervention, and 3-month follow-up post-intervention];Changes in mean disordered eating scores (Eating Pathology Symptoms Inventory)[Pre-intervention, post-intervention, and 3-month follow-up post-intervention];Changes in mean depression scores (PHQ-9)[Pre- to post-intervention];Changes in mean psychological distress scores (K-10)[Pre- to post-intervention]