ClinicalTrials.gg
CompletedNCT04027075QlarityUpdated Dec 12, 2024Results posted

Mindfulness Mobile App to Reduce Adolescent Substance Use

An interventional study of Qlarity app users in Adolescent Drinking and Adolescent Problem Behavior, sponsored by Oregon Research Behavioral Intervention Strategies, Inc.. Completed at 1 site in United States. Open to participants aged 13 Years to 18 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-12-12.

Sponsored by Oregon Research Behavioral Intervention Strategies, Inc. (part of Influents Innovations) · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
257
Allocation
Randomized
Ages
13 Years to 18 Years
Sex
All
01

Study summary

Substance-abusing youth - especially those who are involved in the juvenile justice system - are at higher risk than nonusers for mental health problems, including depression, conduct problems, personality disorders, suicidal thoughts, attempted suicide, and completed suicide. The proposed Phase II project aims to develop and test the efficacy of a mobile app, called Qlarity, that is geared toward helping high risk adolescent substance users reduce or quit their substance use. The Qlarity app is based on the primary substance use cessation components tested in our previous work with juvenile justice-involved adolescents and on intervention components shown to be central to smoking cessation; it applies a mindfulness approach as the guiding framework for the intervention.

Read the detailed description

There is growing evidence that interventions based on mindfulness have been an efficacious intervention for a variety of problems, including substance use among adolescents. We propose to adapt and test the feasibility and efficacy of a smart phone application (app) intervention prototype that would help adolescent substance users reduce or quit their substance use through the development of stress reduction, emotion regulation, and mindfulness skills. During the development process, 20 high-risk adolescents will be recruited for participation in focus groups and usability testing of early versions of the app; their initial reactions to content and functionality will help guide final iterations. Qlarity is a twelve module program, and each module consists of a teaching component and a practice component. Modules take 5 minutes or less to complete. Module topics include developing an awareness of mind and body states, mindful decision making, and maintaining sobriety.

In this study, the Qlarity app will be evaluated with 400 high risk adolescents that are involved in the juvenile justice system; the first 20 adolescents will be involved in the development process and the remaining 380 participants will be randomly and equally assigned to the Qlarity condition (n = 190) or the Department of Youth Services standard treatment condition (n = 190). Youth will be assessed at baseline and will be instructed to attempt to reduce substance use with a target quit date of 28 days in the future. The Qlarity group will receive instructions for using the app in the 28 days following baseline. All youth will complete 1 and 3 month follow-ups. Assessments will consist of online surveys asking about substance use, emotion regulation, family demographics, and mindfulness practices. The Qlarity group will also be asked for their thoughts and opinions on the app. Biochemical verification of self-reported substance use, a urine sample, will be collected at each interview.

02

Conditions studied

  • Adolescent Drinking
  • Adolescent Problem Behavior

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Keywords

  • Adolescent
  • Alcohol
  • Marijuana
  • Mindfulness
03

In context

Underage Drinking

44 studies on the registry are indexed under Underage Drinking; 13 are open to participants now.

This study's enrollment of 257 is below the median of 360 across 43 interventional studies indexed under Underage Drinking.

Browse Underage Drinking studies →

Lead sponsor

Oregon Research Behavioral Intervention Strategies, Inc. is the lead sponsor of 24 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
13 Years to 18 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • any gender, age 13-18
  • recent involvement with juvenile justice system
  • documented substance use
  • English speaking
  • living in the community (e.g., with biological/adoptive/foster parents)

Exclusion criteria

Exclusion Criteria:

  • non-English speaking
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
257 participants (actual)

Study arms

  • Experimental
    Intervention

    This group will be asked to use the Qlarity app daily in the month following the baseline assessment. This group will also receive services as usual from the Department of Youth Services.

    Behavioral: Qlarity app users

  • No intervention
    Services as usual

    This group will receive services as usual from the Department of Youth Services.

Interventions

  • BehavioralQlarity app users

    Use of the Qlarity app involves completing 12 modules and 12 practice sessions over 30 days.

06

What researchers measure

Primary outcomes

  1. Number of Participants With Marijuana Use

    An EZ Split Key 10 panel cup was used to detect marijuana in a urine sample.

    Time frame: Baseline, 3 months

  2. Number of Participants With Prescribed Drugs Use

    An EZ Split Key 10 panel cup was used to detect prescribed drugs in a urine sample.

    Time frame: Baseline, 3 months

  3. Number of Participants With Hard Drug Use

    An EZ Split Key 10 panel cup was used to detect hard drugs in a urine sample.

    Time frame: Baseline, 3 months

  4. Change in Adolescent Use of Cigarettes

    Change in nicotine use (frequency of use and amount consumed) as measured by Youth Substance Use Interview

    Time frame: Baseline, 1 month, 3 months

  5. Change in Adolescent Use of Alcohol

    Change in alcohol use (frequency of use and amount consumed) as measured by Youth Substance Use Interview

    Time frame: Baseline, 1 month, 3 months

  6. Change in Adolescent Use of Marijuana

    Change in marijuana use (frequency of use and amount consumed) as measured by Youth Substance Use Interview

    Time frame: Baseline, 1 month, 3 months

  7. Change in Adolescent Use of Other Recreational Substances

    Change in use of hard drugs as measured by the Youth Substance Use Interview

    Time frame: Baseline, 1 month, 3 months

  8. Change in Ability to Limit Substance Use

    Self-efficacy for limiting substance use consists of 6 items that assess the ability to abstain from drug use. Response options range from 0 = cannot do at all to 10 = certainly can do. A sum score was computed and thus, values can range between 0 and 60. Higher scores indicate greater ability to abstain

    Time frame: Baseline, 1 month, 3 months

  9. Change in Emotion Regulation

    Emotion Regulation is measured by the Difficulties in Emotion Regulation Scale. Emotional regulation was assessed with a 5-point response option (1 = almost never, 5 = almost always). A sum score was computed and thus, values can range between 1 and 55. A higher score indicates greater levels of emotional regulation.

    Time frame: Baseline, 1 month, 3 months

  10. Change in Mindfulness Behavior - Observing Subscale

    Mindfulness is measured by the Five Facet Mindfulness Questionnaire. Mindfulness was assessed with a 5-point response option (1 = never or very rarely true, 5 = every often or always true) and sum scores were computed for each subscale. Subscales include observing (8 items), describing (8 items), acting with awareness (8 items), non-judging of inner experience (8 items), and non-reactivity to inner experience (7 items). Score could range from 8 to 40 for all subscales other than reactivity to inner experience which could range from 7 to 35. A higher score indicates greater levels of mindfulness.

    Time frame: Baseline, 1 month, 3 months

  11. Change in Mindfulness Behavior - Describing Subscale

    Mindfulness is measured by the Five Facet Mindfulness Questionnaire. Mindfulness was assessed with a 5-point response option (1 = never or very rarely true, 5 = every often or always true) and sum scores were computed for each subscale. Subscales include observing (8 items), describing (8 items), acting with awareness (8 items), non-judging of inner experience (8 items), and non-reactivity to inner experience (7 items). Score could range from 8 to 40 for all subscales other than reactivity to inner experience which could range from 7 to 35. A higher score indicates greater levels of mindfulness.

    Time frame: Baseline, 1 month, 3 months

  12. Change in Mindfulness Behavior - Acting With Awareness Subscale

    Mindfulness is measured by the Five Facet Mindfulness Questionnaire. Mindfulness was assessed with a 5-point response option (1 = never or very rarely true, 5 = every often or always true) and sum scores were computed for each subscale. Subscales include observing (8 items), describing (8 items), acting with awareness (8 items), non-judging of inner experience (8 items), and non-reactivity to inner experience (7 items). Score could range from 8 to 40 for all subscales other than reactivity to inner experience which could range from 7 to 35. A higher score indicates greater levels of mindfulness.

    Time frame: Baseline, 1 month, 2 months

  13. Change in Mindfulness Behavior - Non-judging of Inner Experience Subscale

    Mindfulness is measured by the Five Facet Mindfulness Questionnaire. Mindfulness was assessed with a 5-point response option (1 = never or very rarely true, 5 = every often or always true) and sum scores were computed for each subscale. Subscales include observing (8 items), describing (8 items), acting with awareness (8 items), non-judging of inner experience (8 items), and non-reactivity to inner experience (7 items). Score could range from 8 to 40 for all subscales other than reactivity to inner experience which could range from 7 to 35. A higher score indicates greater levels of mindfulness.

    Time frame: Baseline, 1 month, 3 months

  14. Change in Mindfulness Behavior - Non-reactivity to Inner Experience Subscale

    Mindfulness is measured by the Five Facet Mindfulness Questionnaire. Mindfulness was assessed with a 5-point response option (1 = never or very rarely true, 5 = every often or always true) and sum scores were computed for each subscale. Subscales include observing (8 items), describing (8 items), acting with awareness (8 items), non-judging of inner experience (8 items), and non-reactivity to inner experience (7 items). Score could range from 8 to 40 for all subscales other than reactivity to inner experience which could range from 7 to 35. A higher score indicates greater levels of mindfulness.

    Time frame: Baseline, 1 month, 3 months

  15. Change in Attitude Toward Substance Use - Beliefs and Consequences Subscale

    Change in attitude related to drug use is measured with Adolescent Attitudes toward Substance Use. Subscales are (1) Beliefs and Consequences (9 items) and (2) Lifestyle and Value incompatibility (5 items). Response options were 0 to 10. Standardized scores were computed and values could range from -2.0 to 2.0. Higher scores represent more prosocial attitudes.

    Time frame: Baseline, 1 month, 3 months

  16. Change in Attitudes Towards Substance Use - Lifestyle and Value Incompatibility Subscale

    Change in attitude related to drug use is measured with Adolescent Attitudes toward Substance Use. Subscales are (1) Beliefs and Consequences (9 items) and (2) Lifestyle and Value incompatibility (5 items). Response options were 0 to 10. Standardized scores were computed and values could range from -2.0 to 2.0. Higher scores represent more prosocial attitudes.

    Time frame: Baseline, 1 month, 3 months

07

Results

Posted Dec 12, 2024

Participant flow

Participant flow — Overall Study
MilestoneInterventionServices as Usual
Started129128
Completed88106
Not completed4122
Withdrew: Lost to follow-up4122

Outcome measures

PrimaryNumber of Participants With Marijuana Use

An EZ Split Key 10 panel cup was used to detect marijuana in a urine sample.

Time frame:
Baseline, 3 months
Reported as:
Count of participants · Participants
Number of Participants With Marijuana Use
ParticipantsInterventionServices as Usual
Baseline4740
3 months4141
Statistical analysis
  • Intervention vs Services as Usual · Chi-squared · p = .962 · Odds ratio (or): 1.02 · 95% CI 0.51 to 2.02The odds ratio applies to the group comparison (Intervention vs. Services as Usual) at 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryNumber of Participants With Prescribed Drugs Use

An EZ Split Key 10 panel cup was used to detect prescribed drugs in a urine sample.

Time frame:
Baseline, 3 months
Reported as:
Count of participants · Participants
Number of Participants With Prescribed Drugs Use
ParticipantsInterventionServices as Usual
Baseline5546
3 months2227
Statistical analysis
  • Intervention vs Services as Usual · Chi-squared · p = .109 · Odds ratio (or): 0.47 · 95% CI 0.19 to 1.18The odds ratio applies to the group comparison (Intervention vs. Services as Usual) at 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryNumber of Participants With Hard Drug Use

An EZ Split Key 10 panel cup was used to detect hard drugs in a urine sample.

Time frame:
Baseline, 3 months
Reported as:
Count of participants · Participants
Number of Participants With Hard Drug Use
ParticipantsInterventionServices as Usual
Baseline2214
3 months1514
Statistical analysis
  • Intervention vs Services as Usual · Chi-squared · p = .227 · Odds ratio (or): 1.58 · 95% CI 0.75 to 3.29The odds ratio applies to the group comparison (Intervention vs. Services as Usual) at 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryChange in Adolescent Use of Cigarettes

Change in nicotine use (frequency of use and amount consumed) as measured by Youth Substance Use Interview

Time frame:
Baseline, 1 month, 3 months
Reported as:
Count of participants · Participants
Change in Adolescent Use of Cigarettes
ParticipantsInterventionServices as Usual
Baseline2014
1 month1312
3 month1613
Statistical analysis
  • Intervention vs Services as Usual · Chi-squared · p = .681 · Odds ratio (or): 1.20 · 95% CI 0.50 to 2.87The odds ratio applies to the group comparison (Intervention vs. Services as Usual) at 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryChange in Adolescent Use of Alcohol

Change in alcohol use (frequency of use and amount consumed) as measured by Youth Substance Use Interview

Time frame:
Baseline, 1 month, 3 months
Reported as:
Count of participants · Participants
Change in Adolescent Use of Alcohol
ParticipantsInterventionServices as Usual
Baseline2315
1 month1012
3 months1817
Statistical analysis
  • Intervention vs Services as Usual · Chi-squared · p = .650 · Odds ratio (or): 1.18 · 95% CI 0.58 to 2.42The odds ratio applies to the group comparison (Intervention vs. Services as Usual) at 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryChange in Adolescent Use of Marijuana

Change in marijuana use (frequency of use and amount consumed) as measured by Youth Substance Use Interview

Time frame:
Baseline, 1 month, 3 months
Reported as:
Count of participants · Participants
Change in Adolescent Use of Marijuana
ParticipantsInterventionServices as Usual
Baseline5235
1 month2935
3 months4035
Statistical analysis
  • Intervention vs Services as Usual · Chi-squared · p = .304 · Odds ratio (or): 1.41 · 95% CI 0.73 to 2.73The odds ratio applies to the group comparison (Intervention vs. Services as Usual) at 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryChange in Adolescent Use of Other Recreational Substances

Change in use of hard drugs as measured by the Youth Substance Use Interview

Time frame:
Baseline, 1 month, 3 months
Reported as:
Count of participants · Participants
Change in Adolescent Use of Other Recreational Substances
ParticipantsInterventionServices as Usual
Baseline5254
1 month1617
3 months1817
Statistical analysis
  • Intervention vs Services as Usual · Chi-squared · p = 0.97 · Odds ratio (or): 1.44 · 95% CI 0.69 to 3.00The odds ratio applies to the group comparison (Intervention vs. Services as Usual) at 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryChange in Ability to Limit Substance Use

Self-efficacy for limiting substance use consists of 6 items that assess the ability to abstain from drug use. Response options range from 0 = cannot do at all to 10 = certainly can do. A sum score was computed and thus, values can range between 0 and 60. Higher scores indicate greater ability to abstain

Time frame:
Baseline, 1 month, 3 months
Reported as:
Mean · units on a scale
Change in Ability to Limit Substance Use
units on a scaleInterventionServices as Usual
Baseline46.60 ± 11.7243.34 ± 14.23
1 month47.08 ± 12.6347.27 ± 13.20
3 months44.36 ± 13.8446.49 ± 12.57
Statistical analysis
  • Intervention vs Services as Usual · t-test, 2 sided · p = .005 · Mean difference (final values): -1.78The mean difference applies to the group comparison (Intervention vs. Services as Usual) in trajectory differences from baseline through 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryChange in Emotion Regulation

Emotion Regulation is measured by the Difficulties in Emotion Regulation Scale. Emotional regulation was assessed with a 5-point response option (1 = almost never, 5 = almost always). A sum score was computed and thus, values can range between 1 and 55. A higher score indicates greater levels of emotional regulation.

Time frame:
Baseline, 1 month, 3 months
Reported as:
Mean · units on a scale
Change in Emotion Regulation
units on a scaleInterventionServices as Usual
Baseline30.93 ± 26.7530.38 ± 25.88
1 month31.28 ± 24.7134.87 ± 24.05
3 months28.23 ± 25.4430.31 ± 25.89
Statistical analysis
  • Intervention vs Services as Usual · t-test, 2 sided · p = .460 · Mean difference (final values): -0.80The mean difference applies to the group comparison (Intervention vs. Services as Usual) in trajectory differences from baseline through 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryChange in Mindfulness Behavior - Observing Subscale

Mindfulness is measured by the Five Facet Mindfulness Questionnaire. Mindfulness was assessed with a 5-point response option (1 = never or very rarely true, 5 = every often or always true) and sum scores were computed for each subscale. Subscales include observing (8 items), describing (8 items), acting with awareness (8 items), non-judging of inner experience (8 items), and non-reactivity to inner experience (7 items). Score could range from 8 to 40 for all subscales other than reactivity to inner experience which could range from 7 to 35. A higher score indicates greater levels of mindfulness.

Time frame:
Baseline, 1 month, 3 months
Reported as:
Mean · units on a scale
Change in Mindfulness Behavior - Observing Subscale
units on a scaleInterventionServices as Usual
Baseline25.57 ± 7.5525.18 ± 5.90
Pretest25.29 ± 6.1524.98 ± 6.03
Posttest25.91 ± 5.7425.05 ± 6.10
Statistical analysis
  • Intervention vs Services as Usual · t-test, 2 sided · p = .851 · Mean difference (final values): 0.05The mean difference applies to the group comparison (Intervention vs. Services as Usual) in trajectory differences from baseline through 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryChange in Mindfulness Behavior - Describing Subscale

Mindfulness is measured by the Five Facet Mindfulness Questionnaire. Mindfulness was assessed with a 5-point response option (1 = never or very rarely true, 5 = every often or always true) and sum scores were computed for each subscale. Subscales include observing (8 items), describing (8 items), acting with awareness (8 items), non-judging of inner experience (8 items), and non-reactivity to inner experience (7 items). Score could range from 8 to 40 for all subscales other than reactivity to inner experience which could range from 7 to 35. A higher score indicates greater levels of mindfulness.

Time frame:
Baseline, 1 month, 3 months
Reported as:
Mean · units on a scale
Change in Mindfulness Behavior - Describing Subscale
units on a scaleInterventionServices as Usual
Baseline24.14 ± 5.4523.39 ± 5.61
1 month23.63 ± 6.1523.26 ± 5.81
3 months24.22 ± 5.6823.41 ± 5.67
Statistical analysis
  • Intervention vs Services as Usual · t-test, 2 sided · p = .977 · Mean difference (final values): -0.01The mean difference applies to the group comparison (Intervention vs. Services as Usual) in trajectory differences from baseline through 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryChange in Mindfulness Behavior - Acting With Awareness Subscale

Mindfulness is measured by the Five Facet Mindfulness Questionnaire. Mindfulness was assessed with a 5-point response option (1 = never or very rarely true, 5 = every often or always true) and sum scores were computed for each subscale. Subscales include observing (8 items), describing (8 items), acting with awareness (8 items), non-judging of inner experience (8 items), and non-reactivity to inner experience (7 items). Score could range from 8 to 40 for all subscales other than reactivity to inner experience which could range from 7 to 35. A higher score indicates greater levels of mindfulness.

Time frame:
Baseline, 1 month, 2 months
Reported as:
Mean · units on a scale
Change in Mindfulness Behavior - Acting With Awareness Subscale
units on a scaleInterventionServices as Usual
Baseline21.86 ± 5.8822.16 ± 6.07
1 month21.93 ± 6.0223.38 ± 6.16
3 months22.49 ± 5.7322.88 ± 6.35
Statistical analysis
  • Intervention vs Services as Usual · t-test, 2 sided · p = .456 · Mean difference (final values): 0.20The mean difference applies to the group comparison (Intervention vs. Services as Usual) in trajectory differences from baseline through 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryChange in Mindfulness Behavior - Non-judging of Inner Experience Subscale

Mindfulness is measured by the Five Facet Mindfulness Questionnaire. Mindfulness was assessed with a 5-point response option (1 = never or very rarely true, 5 = every often or always true) and sum scores were computed for each subscale. Subscales include observing (8 items), describing (8 items), acting with awareness (8 items), non-judging of inner experience (8 items), and non-reactivity to inner experience (7 items). Score could range from 8 to 40 for all subscales other than reactivity to inner experience which could range from 7 to 35. A higher score indicates greater levels of mindfulness.

Time frame:
Baseline, 1 month, 3 months
Reported as:
Mean · units on a scale
Change in Mindfulness Behavior - Non-judging of Inner Experience Subscale
units on a scaleInterventionServices as Usual
Baseline25.62 ± 6.9825.53 ± 7.26
1 month26.49 ± 7.2925.49 ± 7.67
3 months25.57 ± 7.6525.55 ± 6.69
Statistical analysis
  • Intervention vs Services as Usual · t-test, 2 sided · p = .874 · Mean difference (final values): 0.05The mean difference applies to the group comparison (Intervention vs. Services as Usual) in trajectory differences from baseline through 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryChange in Mindfulness Behavior - Non-reactivity to Inner Experience Subscale

Mindfulness is measured by the Five Facet Mindfulness Questionnaire. Mindfulness was assessed with a 5-point response option (1 = never or very rarely true, 5 = every often or always true) and sum scores were computed for each subscale. Subscales include observing (8 items), describing (8 items), acting with awareness (8 items), non-judging of inner experience (8 items), and non-reactivity to inner experience (7 items). Score could range from 8 to 40 for all subscales other than reactivity to inner experience which could range from 7 to 35. A higher score indicates greater levels of mindfulness.

Time frame:
Baseline, 1 month, 3 months
Reported as:
Mean · units on a scale
Change in Mindfulness Behavior - Non-reactivity to Inner Experience Subscale
units on a scaleInterventionServices as Usual
Baseline19.97 ± 4.6019.72 ± 4.56
1 month20.21 ± 5.1619.60 ± 4.93
2 month21.07 ± 4.7219.59 ± 4.71
Statistical analysis
  • Intervention vs Services as Usual · t-test, 2 sided · p = .069 · Mean difference (final values): 0.44The mean difference applies to the group comparison (Intervention vs. Services as Usual) in trajectory differences from baseline through 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryChange in Attitude Toward Substance Use - Beliefs and Consequences Subscale

Change in attitude related to drug use is measured with Adolescent Attitudes toward Substance Use. Subscales are (1) Beliefs and Consequences (9 items) and (2) Lifestyle and Value incompatibility (5 items). Response options were 0 to 10. Standardized scores were computed and values could range from -2.0 to 2.0. Higher scores represent more prosocial attitudes.

Time frame:
Baseline, 1 month, 3 months
Reported as:
Mean · units on a scale
Change in Attitude Toward Substance Use - Beliefs and Consequences Subscale
units on a scaleInterventionServices as Usual
Baseline-0.04 ± 0.450.05 ± 0.47
1 month0.01 ± 0.53-0.01 ± 0.49
3 months-0.00 ± 0.450.03 ± 0.52
Statistical analysis
  • Intervention vs Services as Usual · t-test, 2 sided · p = .658 · Mean difference (final values): 0.01The mean difference applies to the group comparison (Intervention vs. Services as Usual) in trajectory differences from baseline through 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.
PrimaryChange in Attitudes Towards Substance Use - Lifestyle and Value Incompatibility Subscale

Change in attitude related to drug use is measured with Adolescent Attitudes toward Substance Use. Subscales are (1) Beliefs and Consequences (9 items) and (2) Lifestyle and Value incompatibility (5 items). Response options were 0 to 10. Standardized scores were computed and values could range from -2.0 to 2.0. Higher scores represent more prosocial attitudes.

Time frame:
Baseline, 1 month, 3 months
Reported as:
Mean · units on a scale
Change in Attitudes Towards Substance Use - Lifestyle and Value Incompatibility Subscale
units on a scaleInterventionServices as Usual
Baseline-0.04 ± 0.57-0.01 ± 0.65
1 month-0.01 ± 0.60-0.02 ± 0.60
3 months-0.04 ± 0.560.03 ± 0.66
Statistical analysis
  • Intervention vs Services as Usual · t-test, 2 sided · p = .783 · Mean difference (final values): -0.01The mean difference applies to the group comparison (Intervention vs. Services as Usual) in trajectory differences from baseline through 3-months. Group was coded 1 = Intervention and 0 = Services as Usual.

Adverse events

Collected over Adverse events were monitored over the 3 month period that participants were involved in the study. Data was assessed for adverse events at all data collection timepoints: baseline, 1 month follow up, and 3 month follow up.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Intervention0/129 (0%)0/129 (0%)0/129 (0%)
Services as Usual0/128 (0%)0/128 (0%)0/128 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)InterventionServices as UsualTotal
Mean15.30 ± 1.6215.23 ± 1.6815.26 ± 1.64
Sex: Female, Male
Sex: Female, Male(Participants)InterventionServices as UsualTotal
Female5051101
Male7977156
Race (NIH/OMB)
Race (NIH/OMB)(Participants)InterventionServices as UsualTotal
American Indian or Alaska Native448
Asian112
Native Hawaiian or Other Pacific Islander033
Black or African American91423
White9681177
More than one race121426
Unknown or Not Reported71118
08

Study locations

1 site
  • Oregon Research Behavioral Intervention Strategies, Inc.
    Springfield, Oregon 97477, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 12, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04027075
Responsible party
Sponsor
First posted
Jul 19, 2019
Start date
Feb 10, 2020
Primary completion
Apr 30, 2023
Completion
Apr 30, 2023
Results posted
Dec 12, 2024
Last update
Dec 12, 2024

Study contacts

Dana Smith, PhD
principal investigator · Oregon Research Behavioral Intervention Strategies

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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