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.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
20
Psykiatri Nordväst, Stockholms Läns Sjukvårdsområde (SLSO), Stockholms Läns Landsting
Stockholm, Sweden
Saving Inventory - Revised (SI-R)
The SI-R is a 23-item self-report questionnaire. It assesses hoarding symptoms in 3 sub-scales: difficulty discarding, clutter and excessive acquisition.
Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up
Hoarding Rating Scale - Self Report (HRS-SR)
A 5-item self-report questionnaire assessing hoarding symptoms.
Time frame: Weekly change during treatment, weeks 1-15
Saving Cognitions Inventory (SCI)
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.
Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up
Clutter Image Rating (CIR)
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.
Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up
Global Assessment of Functioning (GAF)
A scale used to rate the social, occupational, and psychological functioning of the study participants.
Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up
Clinical global impression (CGI)
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.
Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up
EuroQol- 5 Dimension (EQ-5D)
A self-rating scale assessing quality of life i 5 dimensions.
Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up
Trimbos and Institute of Medical Technology Assessment Cost Questionnaire for Psychiatry (TIC-P)
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.
Time frame: Change from baseline to treatment week 8,16, 3- and 12-month follow-up
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