Actively Recruiting
The Effect of Emotion-Focused Acceptance and Commitment Therapy on Obsessive-Compulsive Disorder Symptom Severity: A Randomized Controlled Trial
Led by Mehmet Emrah Karadere · Updated on 2026-06-03
36
Participants Needed
1
Research Sites
N/A
Total Duration
On this page
Sponsors
M
Mehmet Emrah Karadere
Lead Sponsor
G
Goztepe Prof Dr Suleyman Yalcın City Hospital
Collaborating Sponsor
AI-Summary
What this Trial Is About
Researchers are evaluating the effect of Emotion-Focused Acceptance and Commitment Therapy (ACT) group psychotherapy on the severity of symptoms in adults with Obsessive-Compulsive Disorder (OCD). This randomized controlled trial compares ACT-based group psychotherapy to supportive group psychotherapy, aiming to understand how these therapies impact OCD symptoms, psychological flexibility, emotional awareness, functioning, and quality of life. Participants will be randomly assigned to one of two groups: the ACT-based group psychotherapy or the supportive group psychotherapy. Both groups consist of 8 to 10 participants meeting once a week for 10 to 12 sessions, each lasting 2 hours. The ACT group focuses on emotional awareness, acceptance, cognitive defusion, present-moment focus, values clarification, and committed action, while the supportive group provides emotional support and stress coping strategies without structured therapy. Participants will be evaluated before and after the treatment using several measures including the Yale-Brown Obsessive Compulsive Scale, Dimensional Obsessive-Compulsive Scale, and quality of life assessments like the SF-36. The study will assess OCD symptom severity, emotional awareness, psychological flexibility, and overall functioning. The total participation lasts 10 to 12 weeks with weekly sessions and assessments conducted at the start and completion of therapy.
CONDITIONS
Brief Title
Effect of Emotion-Focused Acceptance and Commitment Therapy on Obsessive-Compulsive Disorder Symptom Severity
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Diagnosis of Obsessive-Compulsive Disorder according to DSM-5 criteria
- Age between 18-65 years
- Minimum literacy level
- Willingness to participate and providing informed consent
You will not qualify if you...
- Age over 65 years
- Diagnosis of alcohol or substance use disorder
- Comorbid psychotic disorder or intellectual disability
- Any change in psychiatric treatment (medication or psychotherapy) in the last 3 months
- Comorbid psychiatric disorder that would impair group therapy compliance
- History of cognitive impairment due to dementia, organic brain syndrome or other neurological/organic pathology
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - 10 to 12 weeks
Participants attend group psychotherapy sessions focused on emotion-focused Acceptance and Commitment Therapy or supportive group psychotherapy. Sessions occur once weekly for 10 to 12 weeks, each lasting 2 hours.
Weekly visits for 10 to 12 sessions
Trial Site Locations
Total: 1 location
1
Goztepe Prof. Dr. Suleyman Yalcin City Hospital
Istanbul, Istanbul, Turkey (Türkiye), 34722
Actively Recruiting
Research Team
M
Mehmet Emrah Karadere
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
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