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Recruiting NCT07622654

Effect of Emotion-Focused Acceptance and Commitment Therapy on Obsessive-Compulsive Disorder Symptom Severity

No phase Interventional OCD Obsessive - Compulsive Disorder

For patients and families

In plain language

An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.

What is being studied
The protocol lists: Emotion-Focused Acceptance and Commitment Therapy (ACT) Group Psychotherapy.
Who it may be relevant to
Registry conditions: OCD, Obsessive - Compulsive Disorder. Basic parameters: 18 years — 65 years · All.
What needs checking
Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
Where it takes place
Turkey (Türkiye)
Next step
Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →

Unsure about the terms? Read our patient guide →

Official title

The Effect of Emotion-Focused Acceptance and Commitment Therapy on Obsessive-Compulsive Disorder Symptom Severity: A Randomized Controlled Trial

Overview

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.

Detailed description

This randomized controlled trial investigates the efficacy of an Emotion-Focused Acceptance and Commitment Therapy (ACT) protocol in adults diagnosed with Obsessive-Compulsive Disorder (OCD). Participants will be recruited from the psychiatry outpatient clinic of Goztepe Prof. Dr. Suleyman Yalcin Sehir Hastanesi.

Eligible participants will be randomly assigned to one of two arms:

ACT-based group psychotherapy: Structured group therapy targeting emotional awareness, acceptance of emotional experiences, cognitive defusion, present-moment focus, values clarification, and committed action. Groups will consist of 8-10 participants, meeting once weekly for 10-12 sessions of 2 hours each.

Supportive group psychotherapy (active control): Unstructured supportive group therapy aimed at providing emotional support, enhancing coping with stress, and maintaining current functioning. Groups will consist of 8-10 participants, meeting once weekly for 10-12 sessions of 2 hours each.

Assessments will be conducted at baseline and post-treatment using the Yale-Brown Obsessive Compulsive Scale (Y-BOCS), Dimensional Obsessive-Compulsive Scale (DOCS), Vancouver Obsessional Compulsive Inventory (VOCI), SF-36 Quality of Life Scale, Acceptance and Action Questionnaire-II (AAQ-II), Hospital Anxiety and Depression Scale (HADS), and Toronto Alexithymia Scale (TAS-20).

Interventions

  • Behavioral Emotion-Focused Acceptance and Commitment Therapy (ACT) Group Psychotherapy
    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.

Primary outcome measures

  • Obsessive-Compulsive Symptom Severity [Time frame: Baseline and 10-12 weeks (post-treatment)]
  • OCD Symtom Severity- DOCS [Time frame: Baseline and 10-12 weeks]

Eligibility criteria

Inclusion criteria

  • 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 criteria

  • 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

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Allocation
Randomized
Model
Parallel assignment
Masking
Open label
Primary purpose
Treatment

Study locations

Turkey (Türkiye) · 1 center
  • Goztepe Prof. Dr. Suleyman Yalcin City Hospital — Istanbul

Identifiers

NCT: NCT07622654 · 2026/0040 · 2025/0040

Primary sources (government registries)

View this study on ClinicalTrials.gov ↗