About this trial
This study aims at evaluating the effectiveness of group-based cognitive behavioral therapy for trichotillomania at three clinical sites in Norway.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Clinical diagnosis of Trichotillomania
Age between 16 and 67
Disqualifiers
schizophrenia spectrum disorder
substance addiction
severe antisocial, schizotypal, or paranoid personality disorder
severe eating disorder,
Trial population
Patients referred for treatment of trichotillomania (TTM)
Trial design
Case-only
Prospective
Treatments tested in this trial
Cognitive behavioral therapy
Behavioral10 sessions Group therapy during 10-12 weeks. The first three sessions focus on habit reversal training, the fourth to sixth session on acceptance and commitment therapy and the last four sessions aims at integrating the two approaches.
Treatment groups
Trial outcomes
Primary outcomes
Change in National Institute of Mental Health Trichotillomania Severity Scale (NIMH-TSS)
clinical interview
Change in Massachusetts General Hospital - Hairpulling Scale (MGH-HS)
self-report
Secondary outcomes
Change Patient Health Questionnaire-9 (PHQ-9)
self-report depressive symptoms
Change General Anxiety Disorder Scale (GAD-7)
self-report anxiety symptoms
Change Metacognition Questionnaire (MCQ-30)
self-reported metacognitions
Change in Acceptance and Action Questionnaire for Trichotillomania
self-report
Sponsors and contacts
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Oslo University Hospital
Lead sponsor
Sorlandet Hospital HF
Collaborator
St. Olavs Hospital
Collaborator
Texas A&M University
Collaborator
University of Michigan
Collaborator