NCT02843308: BITS

Enhancing Treatment of Hoarding Disorder With Personalized In-Home Sorting and Decluttering Practice

Completed NA Results posted Last updated 21 November 2025

What this trial tests

NA trial testing Facilitated group therapy with behavioral practice; 18 weeks in Hoarding Disorder in 41 participants. Completed in 2 April 2020.

Timeline

1 September 2016

Primary endpoint
30 June 2019

2 April 2020

Quick facts

Lead sponsor	Stanford University
Phase	NA
Status	Completed
Study type	INTERVENTIONAL
Allocation	randomized
Design	parallel
Masking	double
Primary purpose	treatment
Enrollment	41
Start date	1 September 2016
Primary completion	30 June 2019
Estimated completion	2 April 2020
Sites	1 location across United States

Drugs / interventions tested

• Facilitated group therapy with behavioral practice; 18 weeks

Conditions studied

• Hoarding Disorder — all drugs for Hoarding Disorder →
• Hoarding — all drugs for Hoarding →
• Clutter — all drugs for Clutter →

Sponsor

Stanford University

Who can join

Adults 18 to 70, any sex, with Hoarding Disorder or Hoarding. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Number of Patients Who Met and Exceeded Response Criteria of the Saving Inventory-Revised (SI-R) Primary · Change from baseline (pre-treatment) to week 18 (post-treatment) the Immediate Treatment Arm/Group and change from baseline (pre-treatment at 18 weeks) to 36 weeks (post-treatment) for the Delayed Treatment Arm/Group

The SI-R is a 23-item questionnaire with 3 sub-scales for difficulty discarding, excessive clutter, and compulsive acquisition. The total score ranges from 0 to 92. The greater the score, the more severe the hoarding symptoms. Total score higher than 41 shows significant difficulty with clutter. For the acquisition subscale, items 2 (reverse score), 9, 11, 14, 16, 18 and 21 are summed together. The subscale ranges from 0 to 28 and score greater than 13 indicates difficulty with excessive acquisition. For the difficulty discarding subscale, items 4(reverse score), 6, 7, 13, 17, 19, 23 are su

Group	Value	95% CI
Immediate Treatment	9
Delayed Treatment	13

Sponsor's own description

The proposed study aims to investigate the efficacy of adding in-home decluttering practice to Buried in Treasures Workshop (BIT) facilitated group treatment for hoarding disorder.

Publications & conference data

3 peer-reviewed publications reference this trial (live from Europe PMC):

1. Anosognosia in hoarding disorder is predicted by alterations in cognitive and inhibitory control.
   van Roessel PJ, Marzke C, Varias AD, Mukunda P, et al · · 2022 · cited 4× · PMID 36526652 · DOI 10.1038/s41598-022-25532-4
2. Randomized waitlist-controlled trial of buried in treasures facilitated support groups and in-home uncluttering (BIT+) for hoarding disorder.
   Wheaton MG, Varias AD, Sandhu T, Muñoz Rodríguez PA, et al · · 2024 · cited 2× · PMID 38843580 · DOI 10.1016/j.jpsychires.2024.05.055
3. Exploring the effects of cognitive behavioral therapy on cognitive control circuit and behavioral task performance in hoarding disorder.
   Muñoz Rodríguez PA, Pines A, Zhang X, van Roessel PJ, et al · · 2025 · PMID 40315751 · DOI 10.1016/j.jpsychires.2025.04.010