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Clearing the clutter: new study tests home help for hoarding

NCT ID NCT04712474

Symptom relief Sponsor: Karolinska Institutet Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study tests whether adding in-home decluttering sessions to group cognitive-behavioral therapy can reduce hoarding severity in adults with hoarding disorder. About 90 participants in Sweden will receive 10 weekly home visits focused on guided decluttering, alongside standard group therapy. The goal is to see if this practical support improves outcomes like difficulty discarding and excessive clutter.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
in-home decluttering practice
What this could lead to
If successful, this could point toward a more effective treatment for hoarding disorder by combining therapy with practical home support.
What could go wrong
This is a relatively small trial (90 people) and only tests a behavioral addition to therapy, not a cure. Results may not apply to everyone with hoarding disorder.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 90 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2021

Expected to finish

Mar 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Age 18 years or older. 2. Hoarding disorder as primary psychiatric condition. 3. Willing and able to understand and complete consent and study procedures. 4. Living in the Stockholm county (Sweden) and within a 1-hour commute by public transport from the social services office. Exclusion Criteria: 1. Concurrent CBT or having received CBT for HD during the last two years, for a minimum of 8 sessions including active strategies for reducing acquisition and practice of discarding with a qualified therapist or 8 previous in-home decluttering sessions with a qualified social worker. 2. Unable or unwilling to allow study staff into home for home assessment. 3. Animal hoarding or squalid (i.e. extremely unhygienic) home conditions that are deemed to put the personnel at risk during the in-home decluttering. 4. A diagnosis of organic brain disorder, intellectual disability, psychosis, bipolar disorder without stable medication or with symptoms within the last 6 months, anorexia nervosa or alcohol/substance dependence or abuse. 5. Major medical or neurological conditions that increase the risk of participation or that would prevent completing assigned behavioral practice tasks. 6. Immediate risk to self or others, requiring urgent medical attention, such as high suicidality risk. 7. Participant not able to read and communicate in Swedish. 8. Currently at high risk for eviction (for instance having received a "rättelseanmaning" by the housing company or Swedish court). 9. Potential participant lives in the same household as an already included participant.

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Conditions

The condition(s) this trial relates to.

Hoarding Hoarding Disorder speech disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Hoarding disorder

Contacts and locations

Locations

  • M46: Karolinska Universitetssjukhuset, Psykiatri Sydväst Stockholm, Huddinge, Sweden, 141 86

    Stockholm, 141 86, Sweden

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