Clinical trial Recruiting at 1 site Observational Ages 16 to 67

Group therapy for hair pulling disorder

Official title: The Norwegian Trichotillomania Project

Run by Oslo University Hospital · NCT02747771 · Data updated 2026-11-12

This study is testing if group therapy can help adults and teens with hair pulling disorder feel better by using a special type of treatment over ten sessions.

Quick facts

Study typeObservational
Ages16 Years to 67 Years
SexAll
Enrollment150 (estimated)
SponsorOslo University Hospital
Academic / other
Locations1 site (Oslo)
StatusRecruiting
StartedJanuary 1, 2013
Main results expectedApril 1, 2024
Study endsDecember 31, 2026
Registry record updatedMarch 5, 2024
Trial IDNCT02747771 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults and adolescents aged 16 to 67 with a clinical diagnosis of trichotillomania.

Probably not a fit

Patients with severe mental health disorders, such as schizophrenia or ongoing suicidal ideation, may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the effectiveness of group-based cognitive behavioral therapy for individuals with trichotillomania at three clinical sites in Norway. It utilizes an ACT-enhanced habit reversal training approach, consisting of ten group sessions followed by booster sessions within the first year. Participants include adults and adolescents aged 16 and older who meet the DSM-IV criteria for trichotillomania. Treatment outcomes are assessed using standardized scales at baseline, post-treatment, and one year later.

Why it matters

Potential benefit: If successful, this therapy could significantly reduce hair pulling behaviors and improve the quality of life for patients with trichotillomania.

How similar studies have gone: Other studies have shown promising results with cognitive behavioral therapy approaches for similar conditions, indicating potential for success in this study.

Who can join: the full rules

Show full inclusion / exclusion criteria
* Inclusion Criteria:

  * Clinical diagnosis of Trichotillomania
  * Age between 16 and 67
* Exclusion Criteria:

  * schizophrenia spectrum disorder
  * substance addiction
  * severe antisocial, schizotypal, or paranoid personality disorder
  * severe eating disorder,
  * ongoing suicidal ideation
  * pervasive developmental disorder
  * mental retardation and severe sequelae after brain injury.

Where it's running

  • Oslo University Hospital
    Oslo, Norway
    Recruiting

Study contacts

  • Principal investigator: Benjamin Hummelen, Ph.D., M.D. — Oslo University Hospital
  • Study coordinator: Benjamin Hummelen, Ph.D., M.D.
  • Email: uxbeum@ous-hf.no
  • Phone: +4795741039

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.