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Online Treatment of Trichotillomania

This study has been completed.
Julia Bangerter-Rhyner Foundation Bale switzerland
Information provided by (Responsible Party):
University of Zurich Identifier:
First received: January 21, 2014
Last updated: May 9, 2016
Last verified: May 2016

Online study for patients with trichotillomania. 4 main hypothesis.

  1. Alexithymia and Trichotillomania correlated and regression analyses find association between them
  2. we will be able to find patient who have never been treated before. Those will suffer to the same amount as previously treated patients
  3. Decoupling will be more helpful than progressive muscle relaxation
  4. different constructs of emotion regulation will show different trait and state characteristics in patients with trichotillomania

Condition Intervention
Trichotillomania Alexithymia Quality of Life Behavioral: Decoupling Behavioral: Progressive relaxation

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Decoupling as Internet Based Intervention: an Randomized Controlled Study to Treat Trichotillomania

Further study details as provided by University of Zurich:

Primary Outcome Measures:
  • Severity of trichotillomania [ Time Frame: 7 months ]

Secondary Outcome Measures:
  • alexithymia [ Time Frame: 7 months ]

Other Outcome Measures:
  • Quality of life [ Time Frame: 7 months ]

Enrollment: 105
Study Start Date: August 2011
Study Completion Date: December 2014
Primary Completion Date: July 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Decoupling
specific technic to reduce hair pulling
Behavioral: Decoupling
Active Comparator: progressive muscle relaxation
Progressive relaxation relaxation technic
Behavioral: Progressive relaxation

Detailed Description:
Randomized controlled trial with about 100 participants.

Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • suffering from trichotillomania 18 to 65 years old

Exclusion Criteria:

  • current drug or alcohol addiction current psychosis
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT02044237

University of
Zurich, Switzerland
Sponsors and Collaborators
University of Zurich
Julia Bangerter-Rhyner Foundation Bale switzerland
Principal Investigator: Michael Rufer, MD, Prof University of Zurich
  More Information

Additional Information:
Responsible Party: University of Zurich Identifier: NCT02044237     History of Changes
Other Study ID Numbers: TTM
Study First Received: January 21, 2014
Last Updated: May 9, 2016

Keywords provided by University of Zurich:
online therapy

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