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Texting teens to tame risky drinking and weed use?

NCT ID NCT05991882

Disease control Sponsor: Kaiser Permanente Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Aug 21, 2026 · Last updated Aug 21, 2026

Summary

This study tests a smartphone-based program designed to help young adults aged 18–30 who drink alcohol and use marijuana at the same time. Participants receive daily messages aimed at reducing cravings and promoting safer behaviors, with the goal of lowering negative consequences like accidents or poor decisions. The trial compares different combinations of these messages to find the most effective approach.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
A mobile adaptive intervention delivering daily craving-reduction and protective behavioral strategy messages
What this could lead to
If effective, this approach could offer a scalable, low-cost way to reduce alcohol- and marijuana-related harms in young adults seen in primary care.
What could go wrong
This is an early-stage feasibility trial with a small sample, so results may not generalize. The intervention relies on self-reported outcomes and daily smartphone engagement, which may be inconsistent.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

128 people

The number who actually took part.

Started

Apr 2024

Finished

Jun 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 30 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * 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 Exclusion Criteria: • any substance use treatment within the past 3 months

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Conditions

The condition(s) this trial relates to.

Alcohol Drinking

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Alcohol drinking Cannabis use

Contacts and locations

Locations

  • Kaiser Permanente Hawaii, Center for Integrated Health Care Research

    Honolulu, Hawaii, 96815, United States

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