Cognitive Rehabilitation and Exposure-based Class for Compulsive Hoarding

Study Overview
=================
Brief Summary
-----------------
The purpose of this protocol is to investigate the effectiveness of a manualized, 20-week group cognitive rehabilitation (CR) and exposure therapy (ET) course for compulsive hoarding. The overarching aim is to understand whether this course will decrease the core symptoms of hoarding and associated features.

Official Title
-----------------
Cognitive Rehabilitation and Exposure-based Class for Compulsive Hoarding

Conditions
-----------------
Hoarding Disorder

Intervention / Treatment
-----------------
* Behavioral: Cognitive Rehabilitation and Exposure-based Class for Compulsive Hoarding


Participation Criteria
=================
Eligibility Criteria
-----------------
Inclusion Criteria: Include: Individuals who exhibit subclinical and clinical levels of hoarding disorder, as determined by the SCID interview conducted at the screening assessment, will be eligible to participate in the study. Individuals may also display clinically relevant symptoms of hoarding as indicated by scores on the Hoarding Rating Scale Interview (HRS-I) and/or on the Saving Inventory-Revised (SIR). Comorbid mood and anxiety disorders are permitted. English-speaking Pregnant women Exclusion Criteria: Adults unable to consent Individuals who are not yet adults (infants, children, teenagers) Individuals who are over the age of 85 Individuals with cognitive or physical impairments that would interfere with their participation (e.g., Dementia, uncorrected hearing) Participants who have current or past psychotic symptoms or current or past alcohol/substance abuse/dependence may also be excluded. Participants may also be excluded if they are currently in other forms of psychotherapy. Participants may be excluded if they have had a change in psychotropic medications within three months of the baseline assessment/first class. Participants may be excluded if hoarding is not their primary diagnosis. Prisoners

Ages Eligible for Study
-----------------
Minimum Age: 18 Years
Maximum Age: 85 Years

Sexes Eligible for Study
-----------------
All

Accepts Healthy Volunteers
-----------------
No

Study Plan
=================
How is the study designed?
-----------------

Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Cognitive Rehabilitation and Exposure-based Class for Compulsi<br>Cognitive training is to improve thinking by learning new skills and strategies. The class begins with cognitive training to increase ability to carry out the skills learned later in treatment. Exposure therapy for discarding and acquiring helps to improve ability to make choices about possessions and learn to tolerate anxiety. Participants will face making difficult choices about items and potentially letting them go. Through repeated exposure to decisions about discarding and acquiring, distress about letting go or making choices about items will decrease over time. | Behavioral: Cognitive Rehabilitation and Exposure-based Class for Compulsive Hoarding<br>* The group sessions consists of 20 classes, each lasting approximately 90 minutes and may consist of some or all of the following: A group agreement and a confidentiality contract Homework assignments Viewing informational videos about hoarding Behavioral experiments including sorting and discarding exercises Non-acquisition exposures This course is based on the Manual Cognitive Rehabilitation and Exposure/Sorting Therapy for Compulsive Hoarding (Ayers et al., 2014).<br>|

What is the study measuring?
-----------------
Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Hoarding Rating Scale Interview | The Hoarding Rating scale has a total score ranging from 0 -40 with the higher score indicating higher symptoms of hoarding. This will be used to assess whether hoarding symptoms decrease as a result of treatment. | 22 weeks | 
| Clinician's Global Impression Improvement and Severity ratings | The CGI has a score range of 0-7 with the higher score indicating more severe symptoms.This will be used to assess whether hoarding symptoms decrease as a result of treatment. | 22 weeks | 

 Terms related to the study
=================
Keywords Provided by Centre Hospitalier Valida
-----------------
Hoarding