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Testing a Digital Intervention for Adolescents

Testing a Digital Intervention for Adolescents

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04567888
Enrollment
353
Registered
2020-09-29
Start date
2021-06-03
Completion date
2022-04-11
Last updated
2024-08-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Rumination, Stress, Psychological

Brief summary

Teen participants (ages 13-17) will be randomly assigned to either an experimental (the Happify Teens digital platform), or a waitlist control group. The study includes an 8-week intervention period and a 1-month follow up period.

Detailed description

Teen participants (ages 13-17) will be randomly assigned to either the experimental group in which participants receive access to Happify Teens, a digital platform rooted in several therapeutic traditions that aims to improve wellbeing, or a waitlist control group. Both group conditions last 8 weeks. Participants assigned to the Happify Teens platform will have full access to the intervention, with featured tracks that focus on dealing with stress, worries and building skills for greater happiness. Participants assigned to the waitlist (control) condition will not have access to the Happify Teens platform for the full study period (12 weeks total). Participants in the waitlist control will receive access to Happify Teens after the full study period is complete (12 weeks). Perceived stress, rumination, and optimism will be assessed via self-report at baseline, end of the 8-week intervention, and at 1 month post intervention.

Interventions

BEHAVIORALHappify Teens

An online platform for conveying techniques from positive psychology, cognitive-behavioral therapy, and mindfulness-based stress reduction.

Sponsors

Happify Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Intervention model description

Users are randomly assigned between arms after completing baseline assessment and stay in that arm for the duration of the study.

Eligibility

Sex/Gender
ALL
Age
13 Years to 17 Years
Healthy volunteers
No

Inclusion criteria

* 13-17 years of age * US resident * Perceived Stress Scale Score ≥ 10 * Ruminative Responses Scale Score ≥ 14 * Ability and willingness to complete study activities * Willingness and access to using a digital intervention via mobile application or web browser

Exclusion criteria

* Current or past user of any Happify platform * Non-US Resident * Perceived Stress Scale Score \< 10 * Ruminative Responses Scale Score \< 14

Design outcomes

Primary

MeasureTime frameDescription
Change in Perceived Stress [Perceived Stress Scale (PSS)]Baseline, 4 weeks, 8 weeks, 12 weeks10-item measure of perceived stress scoring how often the participant felt stressed by each statement in the following month from never (0) to very often (4). Scores can range from 0 to 40, with higher scores indicating higher levels of perceived stress.

Secondary

MeasureTime frameDescription
Change in Rumination [Ruminative Responses Scale (RRS)-Short Form-Brooding Subscale]Baseline, 4 weeks, 8 weeks, 12 weeksA 5-item measure of rumination (brooding) assessing how often participants engage with each of the 5 behaviors on a scale from almost never (1) to almost always (4). Ratings are summed so that total scores can range from 5 to 20, with higher scores indicating more brooding in the past month.

Countries

United States

Participant flow

Participants by arm

ArmCount
Happify Teens
Happify Teens is a digital well-being intervention that can be accessed via mobile application or web browser Happify Teens: An online platform for conveying techniques from positive psychology, cognitive-behavioral therapy, and mindfulness-based stress reduction.
178
Waitlist Control
Waitlist Control Condition
175
Total353

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDid Not Complete Any Happify for Teens Activities220
Overall StudyDid Not Create Happify for Teens Account220
Overall StudyDuplicate Responses01
Overall StudyReported Unusual Birth Year23

Baseline characteristics

CharacteristicHappify TeensWaitlist ControlTotal
Age, Customized
13 years
19 Participants24 Participants43 Participants
Age, Customized
14 years
44 Participants42 Participants86 Participants
Age, Customized
15 years
30 Participants31 Participants61 Participants
Age, Customized
16 years
36 Participants43 Participants79 Participants
Age, Customized
17 years
47 Participants32 Participants79 Participants
Age, Customized
Missing or Unusual Birth Year
2 Participants3 Participants5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
19 Participants22 Participants41 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
159 Participants153 Participants312 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Perceived Stress Scale26.06 score on a scale
STANDARD_DEVIATION 4.41
25.29 score on a scale
STANDARD_DEVIATION 5.04
25.68 score on a scale
STANDARD_DEVIATION 4.74
Race (NIH/OMB)
American Indian or Alaska Native
3 Participants1 Participants4 Participants
Race (NIH/OMB)
Asian
3 Participants2 Participants5 Participants
Race (NIH/OMB)
Black or African American
9 Participants11 Participants20 Participants
Race (NIH/OMB)
More than one race
17 Participants15 Participants32 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
6 Participants8 Participants14 Participants
Race (NIH/OMB)
White
140 Participants138 Participants278 Participants
Region of Enrollment
United States
178 participants175 participants353 participants
Ruminative Responses Scale - Brooding Subscale14.18 score on a scale
STANDARD_DEVIATION 2.32
14.29 score on a scale
STANDARD_DEVIATION 2.55
14.23 score on a scale
STANDARD_DEVIATION 2.44
Sex/Gender, Customized
Female
122 Participants110 Participants232 Participants
Sex/Gender, Customized
Male
42 Participants50 Participants92 Participants
Sex/Gender, Customized
Missing
0 Participants1 Participants1 Participants
Sex/Gender, Customized
Non-Binary/Other
14 Participants14 Participants28 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 00 / 0
other
Total, other adverse events
0 / 00 / 0
serious
Total, serious adverse events
0 / 00 / 0

Outcome results

Primary

Change in Perceived Stress [Perceived Stress Scale (PSS)]

10-item measure of perceived stress scoring how often the participant felt stressed by each statement in the following month from never (0) to very often (4). Scores can range from 0 to 40, with higher scores indicating higher levels of perceived stress.

Time frame: Baseline, 4 weeks, 8 weeks, 12 weeks

ArmMeasureGroupValue (MEAN)Dispersion
Happify TeensChange in Perceived Stress [Perceived Stress Scale (PSS)]Baseline26.33 score on a scaleStandard Deviation 4.43
Happify TeensChange in Perceived Stress [Perceived Stress Scale (PSS)]4 weeks22.01 score on a scaleStandard Deviation 6.1
Happify TeensChange in Perceived Stress [Perceived Stress Scale (PSS)]8 weeks21.95 score on a scaleStandard Deviation 6.2
Happify TeensChange in Perceived Stress [Perceived Stress Scale (PSS)]12 weeks20.96 score on a scaleStandard Deviation 6.57
Waitlist ControlChange in Perceived Stress [Perceived Stress Scale (PSS)]12 weeks24.44 score on a scaleStandard Deviation 6.27
Waitlist ControlChange in Perceived Stress [Perceived Stress Scale (PSS)]Baseline25.26 score on a scaleStandard Deviation 4.97
Waitlist ControlChange in Perceived Stress [Perceived Stress Scale (PSS)]8 weeks24.61 score on a scaleStandard Deviation 6.1
Waitlist ControlChange in Perceived Stress [Perceived Stress Scale (PSS)]4 weeks24.67 score on a scaleStandard Deviation 5.36
p-value: <0.00195% CI: [-1.88, -0.95]Repeated-measures Multilevel Models
Secondary

Change in Rumination [Ruminative Responses Scale (RRS)-Short Form-Brooding Subscale]

A 5-item measure of rumination (brooding) assessing how often participants engage with each of the 5 behaviors on a scale from almost never (1) to almost always (4). Ratings are summed so that total scores can range from 5 to 20, with higher scores indicating more brooding in the past month.

Time frame: Baseline, 4 weeks, 8 weeks, 12 weeks

ArmMeasureGroupValue (MEAN)Dispersion
Happify TeensChange in Rumination [Ruminative Responses Scale (RRS)-Short Form-Brooding Subscale]Baseline14.29 score on a scaleStandard Deviation 2.36
Happify TeensChange in Rumination [Ruminative Responses Scale (RRS)-Short Form-Brooding Subscale]4 weeks12.53 score on a scaleStandard Deviation 3.24
Happify TeensChange in Rumination [Ruminative Responses Scale (RRS)-Short Form-Brooding Subscale]8 weeks11.94 score on a scaleStandard Deviation 2.89
Happify TeensChange in Rumination [Ruminative Responses Scale (RRS)-Short Form-Brooding Subscale]12 weeks11.68 score on a scaleStandard Deviation 3.18
Waitlist ControlChange in Rumination [Ruminative Responses Scale (RRS)-Short Form-Brooding Subscale]12 weeks13.46 score on a scaleStandard Deviation 3.03
Waitlist ControlChange in Rumination [Ruminative Responses Scale (RRS)-Short Form-Brooding Subscale]Baseline14.29 score on a scaleStandard Deviation 2.56
Waitlist ControlChange in Rumination [Ruminative Responses Scale (RRS)-Short Form-Brooding Subscale]8 weeks13.20 score on a scaleStandard Deviation 2.85
Waitlist ControlChange in Rumination [Ruminative Responses Scale (RRS)-Short Form-Brooding Subscale]4 weeks13.89 score on a scaleStandard Deviation 3.01
p-value: <0.00195% CI: [-0.78, -0.3]Repeated-measures Multilevel Models

Source: ClinicalTrials.gov · Data processed: Feb 16, 2026