Internet CBT for Trichotillomania and Skin Picking Disorder

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Brief Title

Internet CBT for Trichotillomania and Skin Picking Disorder

Official Title

Internet Delivered Cognitive Behavior Therapy for Trichotillomania and Skin Picking Disorder

Brief Summary

      The primary aim of the study is to test the feasibility, safety and efficacy of a manual
      based, Internet-delivered, cognitive behaviour therapy (CBT) for trichotillomania and skin
      picking disorder.

Study Type


Primary Outcome

The Massachusetts General Hospital Hairpulling Scale

Secondary Outcome

 Montgomery Åsberg Depression Rating Scale Self Rate




Cognitive behavioral therapy

Study Arms / Comparison Groups

 Internet-delivered CBT
Description:  10 weeks of CBT delivered via the Internet.


* Includes publications given by the data provider as well as publications identified by National Clinical Trials Identifier (NCT ID) in Medline.

Recruitment Information

Recruitment Status


Estimated Enrollment


Start Date

October 5, 2020

Completion Date

March 8, 2022

Primary Completion Date

December 7, 2021

Eligibility Criteria

        Inclusion Criteria:

          -  Primary diagnosis of trichotillomania and/or skin picking disorder according to DSM-5

          -  Living in Sweden with a Swedish personal identification number

          -  Able to participate in study assessment in Swedish and understand Swedish text

          -  Have regular access to a computer with Internet access and skills to use Internet

          -  Signed informed consent

          -  Outpatient

        Exclusion Criteria:

          -  Psychotropic medication changes that can affect symptoms of trichotillomania or skin
             picking disorder within 2 months prior to treatment

          -  Other ongoing psychological treatments that could affect symptoms of trichotillomania
             or skin picking disorder

          -  Completed CBT for trichotillomania or skin picking disorder within the last 24 months

          -  Ongoing substance dependence or misuse

          -  Lifetime bipolar disorder or psychosis

          -  Suicidal ideation (a score of 5 points or higher on item 9 on the self-reported
             Montgomery-Åsberg depression rating scale

          -  Psychiatric comorbidity that could severely jeopardize treatment participation




18 Years - N/A

Accepts Healthy Volunteers



, +46 8585 85 722, [email protected]

Location Countries


Location Countries


Administrative Informations



Organization ID


Responsible Party

Principal Investigator

Study Sponsor

Karolinska Institutet


 Region Stockholm

Study Sponsor

, , 

Verification Date

January 2021