Trial Outcomes & Findings for Evaluation of a Therapeutic Mobile App for Depression (NCT NCT05601362)

NCT ID: NCT05601362

Last Updated: 2026-07-06

Results Overview

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

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

110 participants

Primary outcome timeframe

End of treatment (4 week treatment phase)

Results posted on

2026-07-06

Participant Flow

Participant milestones

Participant milestones
Measure
Active Training
In this group, participants were trained to look at happy faces over sad faces 80% of the time.
Control Training
In this condition, participants were trained to look at happy faces only 50% of the time.
Overall Study
STARTED
55
55
Overall Study
COMPLETED
50
47
Overall Study
NOT COMPLETED
5
8

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Some participants may have identified with more than one race.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Gamified Attention Bias Modification
n=50 Participants
Digital therapeutic intervention based on Attention Bias Modification Training (ABMT) designed to decrease negative attention bias. Gamified Attention Bias Modification: Gamified computerized behavioral therapy with therapeutic intervention based on Attention Bias Modification Training (ABMT).
Gamified Placebo Training
n=47 Participants
Identical version of the gamified behavioral intervention without manipulation designed to decrease negative attention bias Gamified Placebo Training: Placebo version of Gamified Attention Bias Modification. (Identical version of the gamified behavioral intervention without manipulation designed to decrease negative attention bias).
Total
n=97 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=9 Participants
0 Participants
n=27 Participants
0 Participants
n=267 Participants
Age, Categorical
Between 18 and 65 years
50 Participants
n=9 Participants
47 Participants
n=27 Participants
97 Participants
n=267 Participants
Age, Categorical
>=65 years
0 Participants
n=9 Participants
0 Participants
n=27 Participants
0 Participants
n=267 Participants
Age, Continuous
30.88 Years
STANDARD_DEVIATION 6.68 • n=9 Participants
29.57 Years
STANDARD_DEVIATION 7.25 • n=27 Participants
30.25 Years
STANDARD_DEVIATION 6.96 • n=267 Participants
Sex/Gender, Customized
Sex · Male
4 Participants
n=9 Participants
7 Participants
n=27 Participants
11 Participants
n=267 Participants
Sex/Gender, Customized
Sex · Female
36 Participants
n=9 Participants
38 Participants
n=27 Participants
74 Participants
n=267 Participants
Sex/Gender, Customized
Sex · Other
10 Participants
n=9 Participants
2 Participants
n=27 Participants
12 Participants
n=267 Participants
Race/Ethnicity, Customized
Race · American Indian or Alaska Native
2 Participants
n=9 Participants • Some participants may have identified with more than one race.
1 Participants
n=27 Participants • Some participants may have identified with more than one race.
3 Participants
n=267 Participants • Some participants may have identified with more than one race.
Race/Ethnicity, Customized
Race · Asian
5 Participants
n=9 Participants • Some participants may have identified with more than one race.
5 Participants
n=27 Participants • Some participants may have identified with more than one race.
10 Participants
n=267 Participants • Some participants may have identified with more than one race.
Race/Ethnicity, Customized
Race · Black or African American
2 Participants
n=9 Participants • Some participants may have identified with more than one race.
2 Participants
n=27 Participants • Some participants may have identified with more than one race.
4 Participants
n=267 Participants • Some participants may have identified with more than one race.
Race/Ethnicity, Customized
Race · Native Hawaiian or Other Pacific Islander
0 Participants
n=9 Participants • Some participants may have identified with more than one race.
0 Participants
n=27 Participants • Some participants may have identified with more than one race.
0 Participants
n=267 Participants • Some participants may have identified with more than one race.
Race/Ethnicity, Customized
Race · White
41 Participants
n=9 Participants • Some participants may have identified with more than one race.
38 Participants
n=27 Participants • Some participants may have identified with more than one race.
79 Participants
n=267 Participants • Some participants may have identified with more than one race.
Race/Ethnicity, Customized
Race · Other
0 Participants
n=9 Participants • Some participants may have identified with more than one race.
1 Participants
n=27 Participants • Some participants may have identified with more than one race.
1 Participants
n=267 Participants • Some participants may have identified with more than one race.
Race/Ethnicity, Customized
Race · Declined to answer
0 Participants
n=9 Participants • Some participants may have identified with more than one race.
0 Participants
n=27 Participants • Some participants may have identified with more than one race.
0 Participants
n=267 Participants • Some participants may have identified with more than one race.
Race/Ethnicity, Customized
Ethnicity · Hispanic/Latino
4 Participants
n=9 Participants
6 Participants
n=27 Participants
10 Participants
n=267 Participants
Race/Ethnicity, Customized
Ethnicity · Non-Hispanic
46 Participants
n=9 Participants
41 Participants
n=27 Participants
87 Participants
n=267 Participants
Region of Enrollment
United States
50 participants
n=9 Participants
47 participants
n=27 Participants
97 participants
n=267 Participants

PRIMARY outcome

Timeframe: End of treatment (4 week treatment phase)

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

Outcome measures

Outcome measures
Measure
Active Training
n=50 Participants
In this group, participants were trained to look at happy faces over sad faces 80% of the time.
Control Training
n=47 Participants
In this condition, participants were trained to look at happy faces only 50% of the time.
Patient Health Questionnaire - 8 (PHQ-8)
11.4 points
Standard Error 0.566
11.9 points
Standard Error 0.591

SECONDARY outcome

Timeframe: End of treatment (4 week treatment phase)

5-item self-report measure of rumination frequency (Range: 1-20, higher scores indicate more rumination)

Outcome measures

Outcome measures
Measure
Active Training
n=50 Participants
In this group, participants were trained to look at happy faces over sad faces 80% of the time.
Control Training
n=47 Participants
In this condition, participants were trained to look at happy faces only 50% of the time.
Ruminative Response Scale - Brooding Subscale (RRS-B)
12.3 points
Standard Error 0.378
11.8 points
Standard Error 0.398

SECONDARY outcome

Timeframe: End of treatment (4 week treatment phase)

3-item self-report measure of rumination frequency (Range: 0-12, higher scores indicate more rumination)

Outcome measures

Outcome measures
Measure
Active Training
n=50 Participants
In this group, participants were trained to look at happy faces over sad faces 80% of the time.
Control Training
n=47 Participants
In this condition, participants were trained to look at happy faces only 50% of the time.
Perseverative Thinking Questionnaire (PTQ) -"Difficult to Disengage From" Subscale
6.26 points
Standard Error 0.355
6.49 points
Standard Error 0.371

SECONDARY outcome

Timeframe: End of treatment (4 week treatment phase)

10-item measure of dysphoria and depression symptoms (Range: 10-50, higher scores indicate greater dysphoria)

Outcome measures

Outcome measures
Measure
Active Training
n=50 Participants
In this group, participants were trained to look at happy faces over sad faces 80% of the time.
Control Training
n=47 Participants
In this condition, participants were trained to look at happy faces only 50% of the time.
Inventory of Depression and Anxiety Symptoms (IDAS) Dysphoria Subscale
28.3 points
Standard Error 0.914
29.4 points
Standard Error 0.955

OTHER_PRE_SPECIFIED outcome

Timeframe: End of treatment (4 week treatment phase)

Mean scan time for viewing sad stimuli assessed via mousetracking, controlling for baseline score

Outcome measures

Outcome measures
Measure
Active Training
n=50 Participants
In this group, participants were trained to look at happy faces over sad faces 80% of the time.
Control Training
n=47 Participants
In this condition, participants were trained to look at happy faces only 50% of the time.
Attention Bias (Mousetracking)
6572 milliseconds
Standard Error 253
6654 milliseconds
Standard Error 265

OTHER_PRE_SPECIFIED outcome

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

Rumination assessed via smartphone-delivered ecological momentary assessment items used in prior EMA research (Smith et al., 2021)). (Range: 4-20, higher scores indicate more rumination); tested time by condition interaction

Outcome measures

Outcome measures
Measure
Active Training
n=50 Participants
In this group, participants were trained to look at happy faces over sad faces 80% of the time.
Control Training
n=47 Participants
In this condition, participants were trained to look at happy faces only 50% of the time.
General Rumination
10.4 points
Standard Error 0.522
10.5 points
Standard Error 0.535

Adverse Events

Active Training

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Control Training

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Mary McNamara

Mass General Brigham

Phone: 617-855-3466

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place