Columbia University Medical Center
Ranked #1 in Psychiatry
U.S. News & World Report
Ranked #1 in Research Funding
National Institutes of Health
NewYork-Presbyterian Hospital The University Hospital of Columbia and Cornell

Current Research Studies


1) Do you have trouble with clutter, excessive collecting, or hoarding?
Can you tell us what type of treatments and services you find acceptable?

Treatment Acceptability for Hoarding Disorder: This study is an anonymous online survey (IRB #6677) to understand what kinds of treatments and services are acceptable to individuals who have hoarding behaviors, such as difficulty discarding or parting with possessions, excessive acquiring, and clutter in their home. Participation is limited to once per person; it will take you approximately 30 minutes to complete. After completing the survey, you can enter for a chance to win a $100 gift card. Click here to take the survey.


2) Are you worried about getting evicted due to clutter, collecting or hoarding?

Critical Time Intervention for Hoarding Disorder: This study provides 9-months of case-management to individuals who have difficulty with clutter in their homes and who are concerned about the possibility of eviction. In this study, subjects are connected to a personalized set of treatments and services in their community. The goal of the study is to help patients through this difficult period in their lives (when there is a risk of eviction).

**To find out whether this study is a good fit for you, please call 646-774-8128**


Findings from Past Research Studies

Title: Prevalence and Correlates of Difficulty Discarding: Results From a National Sample of the US Population.

Publication Year:2013

    Key Findings:

  • Difficulty discarding is common.
  • Over 20% of the United States population said “Yes” to a survey question that asked if they had difficulty discarding worn-out or worthless possessions.
  • Difficulty discarding was correlated with psychiatric disorders and impairment.



Title: Does extended release methylphenidate help adults with hoarding disorder?: A case series.

Publication Year:2013

    Key Findings:

  • Methylphenidate may improve attention and hoarding symptoms.
  • After 4 weeks of methylphenidate, 3 of 4 patients had a 50% or greater improvement in attention.
  • After 4 weeks of methylphenidate, 2 of 4 patients had up to 32% improvement in hoarding symptoms (comparable with what has been found in other treatment studies of hoarding disorder).



Title: Prevalence of hoarding disorder in individuals at potential risk of eviction in New York City: a pilot study.

Publication Year: 2012

    Key Findings:

  • Hoarding disorder is common in an eviction prevention agency in NYC.
  • Among those seeking help from a nonprofit eviction prevention agency, nearly 22% had hoarding disorder.
  • This rate is nearly 5 to 10 times greater than the rate of hoarding (2% to 6%) in the general population.



Title: From clutter to modern art: a Chinese artist's perspective on hoarding behaviors.

Publication Year: 2011

    Key Findings:

  • A Chinese artist transforms loss, sadness, and clutter in to a poignant work of art depicting healing, beauty, and order.
  • An art installation entitled ‘Waste Not’ by artist Song Dong depicts a cross-cultural experience of emotional attachment to possessions.



Title: Personalized Intervention for Hoarders at Risk of Eviction.

Publication Year: 2010

    Key Findings:

  • Community and academic partnerships may have impact on eviction.
  • Partnership between our hoarding clinic and not-for-profit community eviction prevention agency was able to track long-term progress of individuals with hoarding disorder and test interventions that may protect against eviction.


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