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Mobile Intervention for Alcohol and Marijuana Use in Young Adults

This study is testing a mobile app called "SAFERR" designed to help young adults reduce their use of alcohol and marijuana, especially when used together. The app uses different behavioral strategies, like personalized feedback and goal setting, delivered through daily check-ins on your phone. Researchers want to find the best combination of these strategies to help you reduce negative consequences from using alcohol and marijuana and improve your protective behaviors. You may be able to join if you are 18-30 years old, live in Hawaii (O'ahu), have used Kaiser Permanente Hawaii services recently, and report using both alcohol and marijuana with some negative consequences. The study is currently unclear about its recruitment status.

Study design
This is an interventional study with a planned enrollment of 136 participants. It uses a fractional factorial experimental design to test different combinations of behavioral strategies.
What's involved
You will complete ecological momentary assessments (EMA) for six weeks. After the first two weeks, you will receive an introduction module with psychoeducation, personalized feedback, and goal setting.
Compensation
Not stated in the trial record.
Follow-up
Your progress will be measured through study completion, which is an average of 5 months.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT05991882

Mobile Intervention for Simultaneous Alcohol and Marijuana Use in Young Adults

Completed
NAAges 18–30InterventionalTreatment
Kaiser Permanente
~128 participants
Updated 2026-08-21 on ClinicalTrials.gov
What's tested:Condition 1: Craving daily+PBS dailyCondition 2: Craving daily+PBS triggerCondition 3: Craving trigger+PBS dailyCondition 4: Craving trigger+PBS triggerCondition 5: PBS daily+ PBS triggerCondition 6: Craving daily+Craving trigger

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Negative consequences associated with alcohol, marijuana, and simultaneous alcohol and marijuana (SAM) use
Measured over Through study completion, an average of 5 months
+2 more outcomes measured

Conditions

Alcohol Drinking
Cannabis Use

Explore related trials

Alcohol ConsumptionCannabis misuse

Where it's being run

1 sites across 1 states
Hawaii1

Study leadership

  • Kristina Phillips, PhD · PRINCIPAL_INVESTIGATOR · University of Hawaii

Who to contact

This trial hasn't published a contact. View it on ClinicalTrials.gov

Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

resident of state of Hawai'i and island of O'ahu
age 18-30 years
has sought services at Kaiser Permanente Hawaii within the past year
report marijuana use, heavy drinking, and simultaneous alcohol and marijuana use
report confidence in ability to use protective behavioral strategies
endorse at least 3 recent negative consequences from marijuana and/or alcohol
own a smartphone

What this trial measures

  • Negative consequences associated with alcohol, marijuana, and simultaneous alcohol and marijuana (SAM) useThrough study completion, an average of 5 months

    Changes in negative consequences will be assessed using a measure that assesses alcohol, marijuana, and SAM use negative consequences. Items are rated dichotomously (yes/no).

  • Protective behavioral strategies for alcoholThrough study completion, an average of 5 months

    Changes in protective behavioral strategies for alcohol will be assessed using the Protective Drinking Practices Scale (PDPS), which assesses use of protective behavioral strategies related to alcohol on a 1 (never) to 6 (always) scale.

  • Protective behavioral strategies for marijuanaThrough study completion, an average of 5 months

    Changes in protective behavioral strategies for marijuana will be assessed using the Protective Behavioral Strategies for Marijuana (PBSM) Scale, which assesses use of protective behavioral strategies related to marijuana on a 1 (never) to 6 (always) scale.