- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06361095
Confirmatory Efficacy Trial of Attention Bias Modification for Depression
Confirmatory Efficacy Trial of a Traditional vs. Gamified Attention Bias Modification for Depression
The goal of this clinical trial is to compare the efficacy of two related, but different ABM (Attention Biased Modification) treatments for depression in adults with elevated symptoms of depression. The main aims are:
- Aim 1:examine whether gamified ABM leads to greater change in the primary and secondary outcomes than sham ABM
- Aim 1: establish that gamified ABM is at least as effective as traditional ABM.
- Aim 2: identify moderators of ABM efficacy and mechanisms responsible for its efficacy.
- Aim 3: Identify the durability of ABM on depression symptoms during short-term follow-up
Participants will complete self-report questionnaires, complete eye-tracking tasks, and be clinically assessed through interviews by clinician researchers.
If there is a comparison group: Researchers will compare sham, traditional, and gamified treatment groups to see if they moderate symptoms of depression.
Study Overview
Status
Conditions
Detailed Description
Study Type
Enrollment (Estimated)
Phase
- Early Phase 1
Contacts and Locations
Study Contact
- Name: Christopher G Beevers, PhD
- Phone Number: 5124717557
- Email: beevers@utexas.edu
Study Locations
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Texas
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Austin, Texas, United States, 78705
- Institute for Mental Health Research
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Contact:
- Email: beevers@utexas.edu
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Contact:
- Christopher G Beevers, PhD
- Email: beevers@utexas.edu
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Provided informed consent
- Fluent in English
- Scored 13 or greater on the QIDS-SR at the baseline assessment
- Between the ages of 18 to 70
- Have had no changes in medication and dosage in the past 12 weeks (if currently on antidepressant medication)
Exclusion Criteria:
- Reported suicidal behavior or significant suicidal ideation within the past six months using the Columbia-Suicide Severity Rating Scale (C-SSRS)
- Met criteria for current or past bipolar or psychotic disorders
- Current (i.e., within the past 12 months) substance use disorders of moderate or greater severity on the Mini International Neuropsychiatric Interview (MINI)
- Currently taking opioid analgesics or systemic corticosteroid use as these medications
- Currently receiving psychotherapy
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Sham Comparator: Sham Attention Bias Modification
Sham and traditional ABM interventions will be identical in all respects with one critical exception.
For sham ABM, after stimuli offset the target will appear with equal probability (50%) in the location of the neutral or the dysphoric stimulus.
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Sham attention bias modification designed to match the active ABM condition in all respects except for the shifting attention away from negative stimuli in active attention bias modification.
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Active Comparator: Traditional Attention Bias Modification
This ABM variant is a web-based program delivered to participants via a computer.
It presents pairs of stimuli to the right and left visual fields from two stimulus categories: sad or neutral facial expressions from the Pictures of Facial Affect (POFA) collection and dysphoric or neutral scenes from or from the International Affective Picture System (IAPS) collection.
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Each ABM trial begins with a central fixation cross for 1500ms, followed by a pair of POFA or IAPS stimuli (see Figure 3).
POFA pairs will be presented for 3000ms, while IAPS pairs will be presented for 4500ms (due to the increased image complexity of IAPS images relative to POFA images).
Longer stimulus duration times were selected based on evidence that attention biases for sad stimuli are prolonged in depression.
Following offset of the images, either a single or double asterisk probe appears in the location of one of the images and will remain until a participant response or 10,000ms.
In active ABM, the probe had an 80% probability of appearing in the location of the neutral stimulus.
Investigators selected 80% rather than 100% to allow for computing attention bias during training and to facilitate task engagement.
At the end of each ABM session, participants are provided feedback regarding their task performance relative to their last five sessions in a visual format.
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Experimental: Gamified Attention Bias Modification
This ABM variant will be completed on participants' mobile devices (iOS or Android).
During app use, they will be presented with sad-happy stimulus pairs followed by target probes (tracing a path) always appearing at the happy stimulus location.
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Each trial consists of the fixation stage, facial cue stage, and response stage.
At the fixation stage, an image appears (a colorful medallion) for 500 ms.
The fixation appears randomly within a fixed rectangular field on the user's smartphone screen, and is always at the midpoint between the two face cues that will appear in the next stage.
Next, after the cue disappears, two animated faces appear on the screen, one happy and one sad, with a 1000ms duration.
Immediately after they disappear, a target probe (a trail) appears in the location of the happy face cue.
The path remains (up to 3 seconds) until participants respond by tracing it starting from the point at which the face cue disappeared.
They are instructed to quickly but accurately trace the path with their finger and receive visual and haptic feedback during tracing to indicate they are tracing accurately, followed by the path disappearing.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
QIDS (Quick Inventory of Depression Symptoms) SR-16
Time Frame: Screening, Baseline, Weeks 1-4 (Acute Period), Weeks 12-28 (Follow-Up Period)
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The Quick Inventory of Depressive Symptoms (QIDS) is a 16-item measure (self-report and clinician-rated versions) for adults with depression with solid psychometric properties and substantial data supporting sensitivity to change. The QIDS assesses the criterion domains used to diagnose a major depressive disorder. The participant must score a minimum of 13 on the QIDS-SR at the baseline assessment to qualify for participation. Total QIDS scores range from 0 to 27, with higher scores reflecting greater severity of depression, and thus, worst outcomes for our study. |
Screening, Baseline, Weeks 1-4 (Acute Period), Weeks 12-28 (Follow-Up Period)
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Sheehan Disability Scale (SDS)
Time Frame: Baseline, Weeks 1-4 (Acute Period), Weeks 12-28 (Follow-Up Period)
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Self-report measure of symptom-related disability.
SDS total score ranges from 0 (unimpaired) to 30 (highly impaired).
Higher scores mean a worse outcome.
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Baseline, Weeks 1-4 (Acute Period), Weeks 12-28 (Follow-Up Period)
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Snaith-Hamilton Pleasure Scale (SHAPS)
Time Frame: Baseline, Weeks 1-4 (Acute Period), Weeks 12-28 (Follow-Up Period)
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Self-report measure of anhedonia severity.
SHAPS total score ranges from 0 to 14, with higher scores meaning worse outcomes.
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Baseline, Weeks 1-4 (Acute Period), Weeks 12-28 (Follow-Up Period)
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Hamilton Depression Rating Scale (HAM-D)
Time Frame: Baseline, Weeks 1-4 (Acute Period), Weeks 12-28 (Follow-Up Period)
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Interviewer-rated measure of depression symptom severity.
Scoring for this assessment can range from a minimum total score of 0 (least severe) and a maximum score of 52 (most severe).
Higher scores mean worse outcomes.
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Baseline, Weeks 1-4 (Acute Period), Weeks 12-28 (Follow-Up Period)
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Generalized Anxiety Disorder (GAD-7)
Time Frame: Baseline, Weeks 1-4 (Acute Period), Weeks 12-28 (Follow-Up Period)
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Self-report measure of anxiety symptom severity.
GAD-7 total score for the seven items ranges from 0 to 21, with higher scores indicating worse outcomes.
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Baseline, Weeks 1-4 (Acute Period), Weeks 12-28 (Follow-Up Period)
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Perseverative Thinking Questionnaire (PTQ)
Time Frame: Baseline, Weeks 1-4 (Acute Period), Weeks 12-28 (Follow-Up Period)
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A content-independent measures of repetitive negative thinking.
PTQ total score for 15 items ranges from 0 to 60, with higher scores indicating worse outcomes.
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Baseline, Weeks 1-4 (Acute Period), Weeks 12-28 (Follow-Up Period)
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Christopher G Beevers, PhD, UT Austin
Study record dates
Study Major Dates
Study Start (Estimated)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- R01GABM
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
IPD Sharing Time Frame
IPD Sharing Access Criteria
IPD Sharing Supporting Information Type
- STUDY_PROTOCOL
- SAP
- ICF
- ANALYTIC_CODE
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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