NCT05601362

Brief Summary

The purpose of this study is a preliminary evaluation of a gamified attention bias modification training (GAMBT) for reducing symptoms of depression and rumination. Individuals with elevated symptoms of depression will use the digital intervention over the course of 4 weeks. They will complete a brief (\~5 question) survey daily, as well as weekly assessments.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
110

participants targeted

Target at P50-P75 for not_applicable depression

Timeline
Completed

Started Mar 2023

Shorter than P25 for not_applicable depression

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 26, 2022

Completed
6 days until next milestone

First Posted

Study publicly available on registry

November 1, 2022

Completed
5 months until next milestone

Study Start

First participant enrolled

March 30, 2023

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 30, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 30, 2023

Completed
2.9 years until next milestone

Results Posted

Study results publicly available

July 6, 2026

Completed
Last Updated

July 6, 2026

Status Verified

May 1, 2026

Enrollment Period

5 months

First QC Date

October 26, 2022

Results QC Date

April 20, 2026

Last Update Submit

June 8, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Patient Health Questionnaire - 8 (PHQ-8)

    8-item self-report measure of depression symptom severity (Range: 0-24, higher scores indicate greater depression severity)

    End of treatment (4 week treatment phase)

Secondary Outcomes (3)

  • Ruminative Response Scale - Brooding Subscale (RRS-B)

    End of treatment (4 week treatment phase)

  • Perseverative Thinking Questionnaire (PTQ) -"Difficult to Disengage From" Subscale

    End of treatment (4 week treatment phase)

  • Inventory of Depression and Anxiety Symptoms (IDAS) Dysphoria Subscale

    End of treatment (4 week treatment phase)

Other Outcomes (2)

  • Attention Bias (Mousetracking)

    End of treatment (4 week treatment phase)

  • General Rumination

    Assessed daily over 4 weeks, end of treatment at week 4 reported

Study Arms (2)

Gamified Attention Bias Modification

ACTIVE COMPARATOR

Digital therapeutic intervention based on Attention Bias Modification Training (ABMT) designed to decrease negative attention bias.

Device: Gamified Attention Bias Modification

Gamified Placebo Training

SHAM COMPARATOR

Identical version of the gamified behavioral intervention without manipulation designed to decrease negative attention bias

Device: Gamified Placebo Training

Interventions

Gamified computerized behavioral therapy with therapeutic intervention based on Attention Bias Modification Training (ABMT).

Gamified Attention Bias Modification

Placebo version of Gamified Attention Bias Modification. (Identical version of the gamified behavioral intervention without manipulation designed to decrease negative attention bias).

Gamified Placebo Training

Eligibility Criteria

Age18 Years - 45 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • able and willing to provide informed consent;
  • fluent in English;
  • normal or corrected-to-normal vision
  • moderate or greater depression symptoms (defined as greater than or equal to 10 on the PHQ-8);
  • attention bias for negative stimuli (operationalized as greater than an average of 6500 ms of dwell time on sad faces in an attention bias task);
  • stable psychiatric and neurological medication usage.
  • access to a smartphone for downloading the app and a laptop or desktop computer to complete the weekly assessments

You may not qualify if:

  • recent heavy alcohol use defined as a score of 2 or higher on the PDSQ
  • past or present comorbidity of other serious mental illness (e.g., schizophrenia, substance use disorder, bipolar disorder, etc.)
  • previous experience with gamified attention bias modification app

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mary Eileen McNamara

Austin, Texas, 78712, United States

Location

MeSH Terms

Conditions

Depression

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehavior

Results Point of Contact

Title
Mary McNamara
Organization
Mass General Brigham

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

October 26, 2022

First Posted

November 1, 2022

Study Start

March 30, 2023

Primary Completion

August 30, 2023

Study Completion

August 30, 2023

Last Updated

July 6, 2026

Results First Posted

July 6, 2026

Record last verified: 2026-05

Data Sharing

IPD Sharing
Will share

De-identified data will be made available upon study completion.

Locations