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CompletedNCT05237466Updated Jul 16, 2026Results posted

Motivational Interviewing to Enhance Behavioral Change in Older Adults With Hoarding Disorder

An interventional study of RECLAIM: Reducing Clutter and Increasing Meaning and Sorting Practice in Hoarding Disorder, sponsored by Mississippi State University. Completed at 1 site in United States. Open to participants aged 60 Years and older. Per ClinicalTrials.gov, last updated 2026-07-16.

Sponsored by Mississippi State University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
48
Allocation
Randomized
Ages
60 Years and older
Sex
All
01

Study summary

This study will compare two behavioral interventions for hoarding disorder in older adults.

Read the detailed description

Hoarding disorder is a psychological condition with a unique constellation of consequences for older adults, including increased risk of fire and dying in a fire, insect infestation, and medical problems. Dangers related to cluttered living spaces are exacerbated by reduced executive functioning, attention, and concentration. Hoarding psychopathology results from maladaptive cognitions (e.g., desire to keep items others would discard) and maladaptive behavioral patterns (e.g., avoidance of sorting/discarding items).

Extant treatments for hoarding have targeted fear reduction as the mechanism of change, either through cognitive-behavioral therapy focusing on cognitive restructuring or behavior therapy focusing on exposure therapy. Older adults have a lackluster response to cognitive restructuring for hoarding, and, although exposure therapy increases treatment response, both approaches require a lengthy six-month dose. Our preliminary work suggests that fear reduction may not be a universally relevant target mechanism for older adults, and that to be responsive to the specific needs of older adults, other mechanisms need to be identified.

Motivational interviewing is a technique that is already typically incorporated into hoarding treatment and has been demonstrated to increase motivation for behavioral change across a range of health conditions for older adults, including physical activity, diet, and disease management. Because sorting/discarding is at its core a health behavior that hoarding patients lack the motivation to engage in, motivational interviewing is likely to decrease hoarding severity by eliciting increased levels of sorting/discarding.

The proposed project will use a mechanistic clinical trials approach to determine if a four-month intervention combining motivational interviewing with sorting practice can engage the proposed target, motivation for behavioral change, when compared to a four-month dose of sorting practice alone in a sample of rural-dwelling older adults with hoarding disorder.

02

Conditions studied

  • Hoarding Disorder

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03

In context

Hoarding Disorder

32 studies on the registry are indexed under Hoarding Disorder; 5 are open to participants now.

This study's enrollment of 48 is above the median of 37 across 28 interventional studies indexed under Hoarding Disorder.

Browse Hoarding Disorder studies →

Lead sponsor

Mississippi State University is the lead sponsor of 5 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
60 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Aged 60+
  • Live within a 60-minute driving radius of Starkville, MS
  • Have a primary psychiatric diagnosis of hoarding disorder

Exclusion criteria

Exclusion Criteria:

  • Major cognitive impairment
  • Active psychosis, drug use, or acute suicidal ideation
  • Concurrent psychotherapy focused on hoarding
  • Changed psychotropic medications within the past three months
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
48 participants (actual)

Study arms

  • Experimental
    RECLAIM: Reducing Clutter and Increasing Meaning

    Participants will receive a combination of motivational interviewing and sorting practice to reduce hoarding symptoms.

    Behavioral: RECLAIM: Reducing Clutter and Increasing Meaning

  • Active comparator
    Sorting Practice

    Participants will receive sorting practice only to reduce hoarding symptoms.

    Behavioral: Sorting Practice

Interventions

  • BehavioralRECLAIM: Reducing Clutter and Increasing Meaning

    Participants will receive 16 weekly 1-hour treatment sessions in their home delivered by Masters-level clinicians with the assistance of undergraduate researchers. Each treatment session will involve a combination of motivational interviewing (MI) and sorting practice. The rationale behind the sorting practice is to develop the skill of sorting and the formation of a daily sorting routine. The MI portion of the initial session will involve an evaluation of client strengths and individual biopsychosocial goals. The initial and subsequent sessions will include a variety of MI techniques, including decisional balancing, developing discrepancy, personalized feedback, and reinforcement of responsibility of sense of self-efficacy.

  • BehavioralSorting Practice

    Participants will receive 16 weekly 1-hour treatment sessions in their home delivered by Masters-level clinicians with the assistance of undergraduate researchers. Clinicians will encourage participants to sort objects during each session while refraining from use of any specific cognitive or motivational therapeutic techniques. Participants will be asked to record the frequency and duration of any sorting/ discarding they did during the previous week.

06

What researchers measure

Primary outcomes

  1. Frequency of Sorting/Discarding Behavior

    As a behavioral indicator of motivation to engage in sorting/discarding behavior, participants will be asked to report at their weekly treatment sessions the frequency of sorting/discarding items in the previous week. Data were analyzed as percentage of days sorted between sessions (assessed at sessions 2-16). Mixed effects models were used to analyze data such that participants with at least one timepoint were included in the analyses.

    Time frame: Four months

  2. University of Rhode Island Change Assessment Questionnaire

    The University of Rhode Island Change Assessment Questionnaire (URICA) is a 32-item Likert scale that assesses readiness for change. Scores for readiness for change are calculated by subtracting pre contemplation items from the other summed items. Scores range from -2 to 14, with higher scores indicating greater readiness for change.

    Time frame: Four months

  3. Apathy Evaluation Scale

    The Apathy Evaluation Scale is an 18-item measure of an individual's deficits in goal-directed thoughts and behavior. Scores range from 18-72, with higher scores reflecting more apathy.

    Time frame: Four months

Secondary outcomes

  1. Treatment Acceptability/ Adherence Scale

    The Treatment Acceptability/ Adherence Scale is a 10-item self-report measure of a patient's perception of the acceptability of a treatment as well as their anticipated adherence to the protocol. Scores range from 10-70, with higher scores indicating greater acceptability and perceived adherence.

    Time frame: Immediately after session 1

  2. Saving Inventory-Revised

    The Saving Inventory-Revised is a 23-item measure of the three core hoarding symptoms (urges to save, difficulty discarding, and excessive clutter). Scores range from 0 to 92, with higher scores indicating greater symptom severity.

    Time frame: Four months

Other outcomes

  1. Clutter Image Rating

    The Clutter Image Rating is a three-item pictorial rating scale of clutter level in the bedroom, kitchen, and living room. Assessor ratings of the CIR will be used for the proposed project. Scores of the three rooms are averaged to create a composite score ranging from 1-9, with higher scores indicating greater clutter levels.

    Time frame: Four months

  2. Behavioral Approach Task for Sorting/Discarding

    The Behavioral Approach Task for sorting/discarding involves the participant sorting items in a cluttered part of their home for 15 minutes. The speed of sorting (# of items sorted) will be used as a behavioral indicator of hoarding severity. The lower limit is 0 items sorted; there is no upper limit of number of items to be sorted.

    Time frame: Four months

07

Results

Posted Jul 16, 2026

Participant flow

Participant flow — Overall Study
MilestoneRECLAIM: Reducing Clutter and Increasing MeaningSorting Practice
Started1818
Completed97
Not completed911

Outcome measures

PrimaryFrequency of Sorting/Discarding Behavior

As a behavioral indicator of motivation to engage in sorting/discarding behavior, participants will be asked to report at their weekly treatment sessions the frequency of sorting/discarding items in the previous week. Data were analyzed as percentage of days sorted between sessions (assessed at sessions 2-16). Mixed effects models were used to analyze data such that participants with at least one timepoint were included in the analyses.

Time frame:
Four months
Reported as:
Mean · Percent of days sorted between sessions
Frequency of Sorting/Discarding Behavior
Percent of days sorted between sessionsRECLAIM: Reducing Clutter and Increasing MeaningSorting Practice
Frequency of Sorting/Discarding Behavior38.6 ± 39.229.1 ± 19.3
Statistical analysis
  • RECLAIM: Reducing Clutter and Increasing Meaning vs Sorting Practice · Mixed Models Analysis · p = .41 · Slope: .007 · 95% CI -1.96 to 1.96
PrimaryUniversity of Rhode Island Change Assessment Questionnaire

The University of Rhode Island Change Assessment Questionnaire (URICA) is a 32-item Likert scale that assesses readiness for change. Scores for readiness for change are calculated by subtracting pre contemplation items from the other summed items. Scores range from -2 to 14, with higher scores indicating greater readiness for change.

Time frame:
Four months
Reported as:
Mean · score on a scale
University of Rhode Island Change Assessment Questionnaire
score on a scaleRECLAIM: Reducing Clutter and Increasing MeaningSorting Practice
University of Rhode Island Change Assessment Questionnaire10 ± 1.310 ± 1.5
Statistical analysis
  • RECLAIM: Reducing Clutter and Increasing Meaning vs Sorting Practice · Mixed Models Analysis · p = .90 · Slope: .22 · 95% CI -1.96 to 1.96
PrimaryApathy Evaluation Scale

The Apathy Evaluation Scale is an 18-item measure of an individual's deficits in goal-directed thoughts and behavior. Scores range from 18-72, with higher scores reflecting more apathy.

Time frame:
Four months
Reported as:
Mean · score on a scale
Apathy Evaluation Scale
score on a scaleRECLAIM: Reducing Clutter and Increasing MeaningSorting Practice
Apathy Evaluation Scale58 ± 7.863 ± 5.8
Statistical analysis
  • RECLAIM: Reducing Clutter and Increasing Meaning vs Sorting Practice · Mixed Models Analysis · p = .67 · Slope: .25 · 95% CI -1.96 to 1.96
SecondaryTreatment Acceptability/ Adherence Scale

The Treatment Acceptability/ Adherence Scale is a 10-item self-report measure of a patient's perception of the acceptability of a treatment as well as their anticipated adherence to the protocol. Scores range from 10-70, with higher scores indicating greater acceptability and perceived adherence.

Time frame:
Immediately after session 1
Reported as:
Mean · score on a scale
Treatment Acceptability/ Adherence Scale
score on a scaleRECLAIM: Reducing Clutter and Increasing MeaningSorting Practice
Treatment Acceptability/ Adherence Scale55 ± 6.955 ± 8.2
Statistical analysis
  • RECLAIM: Reducing Clutter and Increasing Meaning vs Sorting Practice · t-test, 2 sided · p = .430 · Mean difference (net): .18
SecondarySaving Inventory-Revised

The Saving Inventory-Revised is a 23-item measure of the three core hoarding symptoms (urges to save, difficulty discarding, and excessive clutter). Scores range from 0 to 92, with higher scores indicating greater symptom severity.

Time frame:
Four months
Reported as:
Mean · score on a scale
Saving Inventory-Revised
score on a scaleRECLAIM: Reducing Clutter and Increasing MeaningSorting Practice
Saving Inventory-Revised33 ± 11.036 ± 11.6
Statistical analysis
  • RECLAIM: Reducing Clutter and Increasing Meaning vs Sorting Practice · Mixed Models Analysis · p = .66 (Test of the time x condition interaction) · Slope: .42 · 95% CI -1.96 to 1.96
Other pre-specifiedClutter Image Rating

The Clutter Image Rating is a three-item pictorial rating scale of clutter level in the bedroom, kitchen, and living room. Assessor ratings of the CIR will be used for the proposed project. Scores of the three rooms are averaged to create a composite score ranging from 1-9, with higher scores indicating greater clutter levels.

Time frame:
Four months
Reported as:
Mean · score on a scale
Clutter Image Rating
score on a scaleRECLAIM: Reducing Clutter and Increasing MeaningSorting Practice
Clutter Image Rating2.9 ± 3.22.2 ± 2.2
Statistical analysis
  • RECLAIM: Reducing Clutter and Increasing Meaning vs Sorting Practice · Mixed Models Analysis · p = .08 · Slope: .17 · 95% CI -1.96 to 1.96
Other pre-specifiedBehavioral Approach Task for Sorting/Discarding

The Behavioral Approach Task for sorting/discarding involves the participant sorting items in a cluttered part of their home for 15 minutes. The speed of sorting (# of items sorted) will be used as a behavioral indicator of hoarding severity. The lower limit is 0 items sorted; there is no upper limit of number of items to be sorted.

Time frame:
Four months
Reported as:
Mean · number of items
Behavioral Approach Task for Sorting/Discarding
number of itemsRECLAIM: Reducing Clutter and Increasing MeaningSorting Practice
Behavioral Approach Task for Sorting/Discarding63 ± 40.359.2 ± 25.9
Statistical analysis
  • RECLAIM: Reducing Clutter and Increasing Meaning vs Sorting Practice · Mixed Models Analysis · p = .60 · Slope: -.21 · 95% CI -1.96 to 1.96

Adverse events

Collected over From Enrollment to end of treatment. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
RECLAIM: Reducing Clutter and Increasing Meaning0/18 (0%)0/18 (0%)0/18 (0%)
Sorting Practice0/18 (0%)0/18 (0%)0/18 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(Year)RECLAIM: Reducing Clutter and Increasing MeaningSorting PracticeTotal
Mean70 ± 7.669 ± 6.270 ± 6.9
Sex: Female, Male
Sex: Female, Male(Participants)RECLAIM: Reducing Clutter and Increasing MeaningSorting PracticeTotal
Female111021
Male7815
Race (NIH/OMB)
Race (NIH/OMB)(Participants)RECLAIM: Reducing Clutter and Increasing MeaningSorting PracticeTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American246
White141428
More than one race202
Unknown or Not Reported000
Savings Inventory-Revised
Savings Inventory-Revised(score on a scale)RECLAIM: Reducing Clutter and Increasing MeaningSorting PracticeTotal
Mean44.22 ± 15.2149.53 ± 11.7646.80 ± 13.71
08

Study locations

1 site
  • Mississippi State University
    Starkville, Mississippi 39762, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — All data collected will be shared using the NIMH Data Archive (NDA) following safe harbor requirements for de-identification. Data dictionaries currently available in NDA will be used for most measures assessed (e.g., PROMIS measures), but new data dictionaries will be created for unique data elements (e.g., reported frequency of sorting behavior) and standardized measures not currently entered in the NDA (e.g., Clutter Image Rating). Data will be deposited in the NDA twice per year over the course of the study and once the study is complete. Each manuscript based off the study will have specific analytic files deposited to the NDA once the manuscript is accepted for publication.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 16, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05237466
Lead sponsor
Mississippi State University
Responsible party
Mary Dozier (Assistant Professor, Mississippi State University) — Principal investigator
First posted
Feb 14, 2022
Start date
Jun 1, 2022
Primary completion
Dec 10, 2025
Completion
Dec 10, 2025
Results posted
Jul 16, 2026
Last update
Jul 16, 2026

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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