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Completed

NCT Number: NCT02584764

Internet Supported Group Cognitive Behavior Therapy (CBT) for Hoarding Disorder (HD)

The primary aim is to develop, and test the feasibility and efficacy of, a manual based, cognitive behaviour therapy (CBT) treatment for Hoarding Disorder (HD) delivered in a group format combined with an Internet support system. The investigators' secondary aim is to investigate the neurocognitive profile of the participants before and after treatment in order to explore if the treatment might have an impact on neurocognitive functioning and if certain neurocognitive profiles predict outcome.

For the primary aim, the investigators hypothesize that the treatment will be acceptable to participants and decrease symptoms of hoarding. Regarding the secondary aim, the investigators hypothesize that deficiencies in executive functioning, as measured with a neurocognitive battery, will reduce upon completion of treatment and that baseline executive function will be associated with treatment outcome.

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Key information

Conditions

Hoarding Disorder Anxiety Disorders Mental Disorders Obsessive-Compulsive Disorder

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Psykiatri Nordväst, Stockholms Läns Sjukvårdsområde (SLSO), Stockholms Läns Landsting

Stockholm, Sweden

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

  • Inclusion criteria:
  • Outpatients
  • Male or female
  • ≥ 18 years of age
  • Currently living in Stockholm county
  • Primary diagnosis of Hoarding Disorder according to DSM-5
  • Signed informed consent
  • Regular access to a computer with Internet and ability to use Internet
  • Access to a mobile phone
  • Able to participate in group sessions
  • Exclusion criteria:
  • Current substance dependence or misuse
  • Life time bipolar disorder or psychosis
  • Severe self-rated depressive symptoms (score ≥ 35 on MADRS-S)
  • Suicidal ideation (score > 4 on item 9 in MADRS-S)
  • Psychotropic medication changes within two months prior to the treatment
  • Other current psychological treatment that could affect hoarding symptoms
  • Has received more than 10 CBT sessions for Hoarding Disorder

Treatment and study plan

Cognitive Behavior Therapy

Behavioral

Other names: CBT

Internet support

Behavioral

Primary outcomes

  1. Saving Inventory - Revised (SI-R)

    Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up

    The SI-R is a 23-item self-report questionnaire. It assesses hoarding symptoms in 3 sub-scales: difficulty discarding, clutter and excessive acquisition.

Secondary outcomes

  1. Hoarding Rating Scale - Self Report (HRS-SR)

    Time frame: Weekly change during treatment, weeks 1-15

    A 5-item self-report questionnaire assessing hoarding symptoms.

  2. Saving Cognitions Inventory (SCI)

    Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up

    The questionnaire is a 24-item self-report questionnaire assessing beliefs and attitudes participants experience when trying to discard items. It is divided in 4 subscales:emotional attachment to objects, beliefs about objects as memory aids, responsibility for not wasting possessions, and the need for control over possessions.

  3. Clutter Image Rating (CIR)

    Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up

    This scale consists of three sets of photographs each containing nine photos of a single room with varying levels of clutter. Study participants will select the photograph that best resembles his or her own home. The study investigators will also conduct blinded ratings of the same photos.

  4. Global Assessment of Functioning (GAF)

    Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up

    A scale used to rate the social, occupational, and psychological functioning of the study participants.

  5. Clinical global impression (CGI)

    Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up

    A 7 point scale to rate how much the patient's illness has improved or worsened relative to a baseline state at the beginning of the intervention.

  6. EuroQol- 5 Dimension (EQ-5D)

    Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up

    A self-rating scale assessing quality of life i 5 dimensions.

  7. Trimbos and Institute of Medical Technology Assessment Cost Questionnaire for Psychiatry (TIC-P)

    Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up

    In this questionnaire, study participants register their monthly health care consumption (e.g. GP visits) as well as time spent in informal health enhancing activities (e.g. self-help groups and informal care from friends). Additionally, work loss and work cutback both at work and in the domestic realm is measured.

Other outcomes

  1. Hoarding disorder diagnosis

    Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up

    Presence of Hoarding Disorder according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). Assessed by the investigators using the Structured Interview for Hoarding Disorder.

  2. Comorbid psychiatric diagnoses

    Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up

    Presence of psychiatric diagnoses other than Hoarding Disorder. Assessed by the investigators using the M.I.N.I. International Neuropsychiatric Interview (M.I.N.I. 6.0).

  3. Neuropsychological Test Battery (CANTAB)

    Time frame: Change from baseline to treatment week 16

    Cambridge Automated Neuropsychological Test Battery (CANTAB) will be used to test the study participants in 3 aspects of executive function: shifting and flexibility of attention, visuospatial working memory and response inhibition

  4. Client Satisfaction Questionnaire - 8 (CSQ-8)

    Time frame: At treatment week 16

    An 8-item questionnaire measuring treatment satisfaction and acceptability.

  5. Homework adherence

    Time frame: Weekly change during treatment, weeks 1-15

    Self-reported time spent on homework each week.

Sponsors and collaborators

Lead sponsor

Karolinska Institutet

Other

Registry information

Official study title

Internet Supported Group Cognitive Behavior Therapy for Hoarding Disorder - A Pilot Study

Important dates

Study start
2015
Primary completion
2017
Study completion
2017
First posted
Oct 23, 2015
Registry last updated
Aug 18, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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