Detection of Hoarding Disorder and Related Psychopathology

NCT07483021 | Recruiting

• 1 other identifier: H-25063773
• Study Type: interventional
• Target: 60
• Locations: 1 country
• Sites: 1

Brief Summary

Hoarding disorder is characterized by excessive amassment of objects in the home and difficulty of getting rid of the objects. It is associated with a high level of somatic and psychiatric comorbidity, suicidality, social marginalization, damage to property and risk of eviction. Previous clinical studies have mainly been in help-seeking groups. However, social services engage severe cases with poor insight, whereas few as 10% have contact with mental health services. This study investigates:

1. 1.The prevalence of severe mental illness and comorbidities among 60 individuals with hoarding disorder that have led to contact with social services at Copenhagen Municipality
2. 2.the effect of a cross-sectoral intervention aiming to establish contact with regional mental health services for these individuals. The intervention consists of an outreach team of clinicians and municipal social workers who refer participants to clinical services based on a systematic clinical assessment.
3. 3.more than 75% of the participants will be identified to have comorbid diagnoses including more than 50% with associated severe mental illness (schizophrenia, other psychotic disorders, bipolar disorder and periodic depression). It is expected that 10% will suffer from underlying organic disorders of dementia or mental retardation.
4. 4.Fifty percent of the sample will establish contact with mental health services within 3 months after attempt of referral, and 30% of the sample will remain in contact for more than 6 months

Conditions

Hoarding Disorder; Hoarding

Keywords

Hoarding; Hoarding disorder; Hoarding behavior; Clutter; Cross-sectoral; Comorbidity; detection of mental illness

Outcome Measures

Primary Outcomes (2)

• Primary and comorbid psychiatric diagnosis

  ICD-10, ICD-11 and DSM-5 diagnoses

  Primary and comorbid diagnosis is assessed at baseline.

• Contact or not with mental health services at a 3- and 6-months follow up

  Data obtained through review of files and Nationwide register-data from the National Patient Register and Danish Psychiatric Central Register

  The participants get referred at baseline, and contact or no contact will be measured at 3 and 6 months follow-up

Secondary Outcomes (5)

• Clutter Image Rating Scale (CIR)

  Assessed at baseline and 3- and 6-months follow-up.

• Saving Inventory - Revised (SIR)

  Assessed at baseline and at 6 months follow-up

• Manchester Short Assessment of Quality of life (MANSA)

  Assessed at baseline and at 6-months follow-up

• Home Environment Assessment Tool for Hoarding (HEATH)

  Assessed at baseline and 6 months follow-up

• Personal and Social Performance Scale (PSP)

  Assessed at baseline and at 6 months follow-up

Study Arms (1)

Intervention group

EXPERIMENTAL

Participants receive a clinical assessment, followed by referral planning by an assertive cross-sectoral team consisting of clinicians and social service professionals

Diagnostic Test: Assertive and supportive diagnostic detection team

Interventions

Assertive and supportive diagnostic detection team DIAGNOSTIC_TEST

The intervention consists in an outgoing (assertive and flexible) team of clinicians (the PhD student, primary supervisor and co-supervisor who are both clinical associate professors and senior consultants) and municipality social workers, directed towards people with hoarding disorder and an ongoing contact with The Housing Advisors, Copenhagen Municipality. The clinicians will do the clinical assessment, and based on this, the team facilitates referrals of research participants to the appropriate regional mental health services, if referral is relevant. The task of the social workers in the intervention will be the same as their current function in The Housing Advisors as outgoing case managers regarding the social issues of their clients.

Intervention group

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Presence of hoarding disorder according to DSM-5 and age above 18 years.
• Current contact with The Housing Advisors, Copenhagen Municipality.

You may not qualify if:

• Recent contact with mental health services (within last 6 months).
• Previously known organic brain disorder (including mental retardation and dementia).

Sponsors & Collaborators

• Andreas Rosén Rasmussen: lead
• Copenhagen Municipality, Denmark: collaborator

Study Sites (1)

Mental Health Center Amager

Copenhagen S, 2300, Denmark

RECRUITING

MeSH Terms

Conditions

Hoarding Disorder; Hoarding; Speech Disorders

Condition Hierarchy (Ancestors)

Obsessive-Compulsive Disorder; Anxiety Disorders; Mental Disorders; Behavior; Language Disorders; Communication Disorders; Neurobehavioral Manifestations; Neurologic Manifestations; Nervous System Diseases; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Officials

• Andreas Rosén Rasmussen, MD, PhD, Associate Professor

  Psychiatry EAST, Central and Western Zealand Hospital

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Line Aalykke, MD

CONTACT

+4524813430; line.aalykke@regionh.dk

Andreas Rosén Rasmussen, MD, PhD, Clin. Assoc. Prof.

CONTACT

+45 29375192; arr@dadlnet.dk

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: DIAGNOSTIC
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: SPONSOR INVESTIGATOR
• PI Title: MD, PhD, Clin. Assoc. Prof.

Model Details: This is a single-group interventional pretest-posttest study. All participants will receive the same intervention. Outcomes will be assessed at baseline prior to the intervention and again at 3 and 6 months follow-up. There is no randomization and no control group.

Study Record Dates

• First Submitted: March 1, 2026
• First Posted: March 19, 2026
• Study Start: March 2, 2026
• Primary Completion (Estimated): August 1, 2027
• Study Completion (Estimated): June 1, 2028
• Last Updated: March 19, 2026

Record last verified: 2026-03

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, ANALYTIC CODE
• Time Frame: Acces to the data is not decided by the researchers, but by the Danish National Archies.
• Access Criteria: If accepted by the Danish National Archives, the data will deposited after completion of the study.

Locations

DK (1)