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Efficacy of COMB (Comprehensive Behavioral) Model of Treatment of Trichotillomania

This study has been completed.
Trichotillomania Learning Center
Information provided by (Responsible Party):
David A. F. Haaga, American University Identifier:
First received: June 10, 2013
Last updated: April 14, 2015
Last verified: April 2015
This pilot study is being conducted in order to help make the case for later, more systematic research on the effectiveness of the Comprehensive Behavioral (COMB) model of treating trichotillomania (compulsive hair pulling). The goals are to standardize COMB treatment techniques in the form of a clear written manual for therapists; determine whether therapists can use these guidelines in a consistent manner in making treatment decisions; develop and test the reliability of measures of how well therapists are conducting the treatment; and collect preliminary data on the acceptability of the treatment to patients.

Condition Intervention
Trichotillomania Hair-Pulling Disorder Behavioral: COMB

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Treatment Development Study of the COMB Model of Trichotillomania

Further study details as provided by David A. F. Haaga, American University:

Primary Outcome Measures:
  • Massachusetts General Hospital Hairpulling Scale (MGH-HS) [ Time Frame: 12 weeks ]
    Improvement in hair pulling symptoms

Enrollment: 16
Study Start Date: January 2013
Primary Completion Date: January 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: COMB Behavioral: COMB


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • 18 years or older
  • Primary Diagnostic and Statistical Manual, Fifth Edition (DSM-5) diagnosis of Trichotillomania (TTM)

Exclusion Criteria:

  • Current suicidality or severe depression
  • Current psychosis
  • Current alcohol or substance abuse
  • Concurrent psychotherapy for TTM
  • Psychotropic meds (for any disorder) that have not been stable for >4 weeks
  Contacts and Locations
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Please refer to this study by its identifier: NCT01878110

United States, District of Columbia
American University
Washington, District of Columbia, United States
Sponsors and Collaborators
American University
Trichotillomania Learning Center
  More Information

Responsible Party: David A. F. Haaga, Professor of Psychology, American University Identifier: NCT01878110     History of Changes
Other Study ID Numbers: TLC COMB Pilot Study
TLC ( Other Grant/Funding Number: Trichotillomania Learning Center )
Study First Received: June 10, 2013
Last Updated: April 14, 2015

Keywords provided by David A. F. Haaga, American University:
Hair pulling
Behavior therapy

Additional relevant MeSH terms:
Disruptive, Impulse Control, and Conduct Disorders
Mental Disorders processed this record on August 18, 2017