Effect of Emotion-Focused Acceptance and Commitment Therapy on Obsessive-Compulsive Disorder Symptom Severity
The Effect of Emotion-Focused Acceptance and Commitment Therapy on Obsessive-Compulsive Disorder Symptom Severity: A Randomized Controlled Trial
Mehmet Emrah Karadere
36 participants
Oct 1, 2025
INTERVENTIONAL
Conditions
Summary
This study aims to investigate the effect of Emotion-Focused Acceptance and Commitment Therapy (ACT) group psychotherapy on obsessive-compulsive disorder (OCD) symptom severity. Participants with OCD will be randomly assigned to either an ACT-based group psychotherapy arm or a supportive group psychotherapy arm. Each arm consists of 10 to 12 weekly sessions of 2 hours. Symptom severity, psychological flexibility, emotional awareness, functioning and quality of life will be assessed before and after the intervention.
Eligibility
Inclusion Criteria4
- 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
Exclusion Criteria6
- 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
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Interventions
Structured group psychotherapy based on ACT principles targeting emotional awareness, acceptance of emotional experiences, cognitive defusion, present-moment focus, values clarification and committed action. Sessions are conducted face-to-face, once weekly, 2 hours per session, for 10-12 weeks.
Locations(1)
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NCT07622654