Cannabis UseNCT07011615
Feasibility/Acceptability of a Brief Motivational Intervention for Frequent/High-Intensity Cannabis Use
A study testing Brief Motivational Mobile Health (mHealth) Intervention in people with Cannabis Use, run by University of Washington at 1 site in United States.
Trial summary
The study aims to develop a novel brief motivational mobile health (mHealth) intervention for frequent and/or high-intensity cannabis use for non-collegiate young adults. A total of 120 young adults (ages 18-29, not enrolled at or attending a 4-year college or university) will be randomized to receive a mHealth… Read more about this study
- Who is it for?
- Ages 18 to 29 yearsHealthy volunteers can take part
- Conditions the study is for
- Cannabis Use
- What is being tested?
- Brief Motivational Mobile Health (mHealth) Intervention
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 120 participants
- Where
- 1 siteUnited States
- Study dates
- 8 Dec 2025to Dec 2026
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 29 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- 18-29 years old
- reside in Washington or Oregon State
- have valid email address
- report using cannabis on 15 or more days in the past month, and/or using high THC concentration products in the past month (>60% THC)
- have a mobile phone and agree to receive text messages and has an internet browser
- not attending or enrolled at a 4-year college or university or graduate/professional school.
Who cannot join
- females who are pregnant or trying to become pregnant
- those who are in substance abuse treatment at screening
- those attending or enrolled at a 4-year college or university or graduate/professional school.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Feasibility/Acceptability of a Brief Motivational Intervention Integrating Online Personalized Feedback & Tailored Text Messages for Frequent/High-Intensity Cannabis Use in Post-Legalization Landscape
The study aims to develop a novel brief motivational mobile health (mHealth) intervention for frequent and/or high-intensity cannabis use for non-collegiate young adults. A total of 120 young adults (ages 18-29, not enrolled at or attending a 4-year college or university) will be randomized to receive a mHealth intervention with text messages for five weeks or to an online resource/program with psychoeducation information about cannabis. The mHealth intervention will focus on prompting the young adult to reflect on their journey with cannabis and to reflect on their personal goals and how cannabis is reflected in these goals. Additional mini-modules are included related to topics such as motivations for use, perceived norms and tracking cannabis use. Participants will return to the program each week to reflect on the prior week and reflect on goals for the upcoming week. All participants will complete a program satisfaction survey and complete follow-up assessments at 3- and 6-months post-program.
- Conditions
- Cannabis Use
- Being tested
- Brief Motivational Mobile Health (mHealth) Intervention, Psychoeducational Attention Control (AC)
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Brief Motivational Mobile Health (mHealth) InterventionBehavioural
Participants randomized to the mHealth intervention condition will receive a five-week online program that incorporates weekly text messages. The program will begin with prompting the young adult to reflect on their journey with cannabis and to reflect on their personal goals and how cannabis is reflected in these goals and how their social network may support their goals. Additional mini-modules are included related to topics such as motivations for use, perceived norms and tracking cannabis use. Text messages will be sent weekly to return to the program to prompt reflection and support any goals the participant indicates.
Psychoeducational Attention Control (AC)Other
Participants randomized to the control group will receive a program to learn more about psychoeducational information about cannabis. They also receive psychoeducational material via text messages.
| Study group | Role | What they receive |
|---|---|---|
| Brief Motivational Mobile Health (mHealth) Intervention | Experimental | Participants randomized to the Brief Motivational mHealth intervention will experience a five week self-directed web-based intervention with text messages. Receives: Behavioral: Brief Motivational Mobile Health (mHealth) Intervention |
| Psychoeducational Attention Control | Other | Participants randomized to the control group will receive a program to learn more about psychoeducational information about cannabis. They will receive psychoeducational material via text messages. Receives: Other: Psychoeducational Attention Control (AC) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Cannabis use - typical hours high in a week
The count of the self-reported typical number of hours high per week during the past month
Measured: Baseline, 3-month follow-up, 6-month follow-up
Negative cannabis-related consequences
Total sum score on the Marijuana Consequences Checklist based on number of self-reported cannabis-related consequences experienced in the past month. Higher scores indicate reporting greater number of negative cannabis-related consequences.
Measured: Baseline, 3-month follow-up, 6-month follow-up
Secondary outcomes (1)
Cannabis use - Number of sessions
Self-reported number of times/sessions used cannabis on the typical day during the past month
Measured: Baseline, 3-month follow-up, 6-month follow-up
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Jun 2025
- Study start8 Dec 2025
- Primary completionDec 2026 (estimated)
- Study completionDec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Cannabis UseStudies of the same condition, open and under way.
- More trials run by University of WashingtonThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 120 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Washington
- Sponsor type
- University, hospital or other
- Collaborators
- National Institute on Drug Abuse (NIDA)
- Responsible party
- Principal investigator, Christine Lee, University of Washington
- Investigators
- Christine M Lee, PhD, Principal investigator, leecm@uw.edu
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07011615
- Sponsor's protocol ID
- STUDY00020546
- Other IDs
- 1R34DA061049-01
- Status last verified
- Jun 2026
- First submitted
- 5 Jun 2025
- Last updated
- 3 Jun 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 3 Jun 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Feasibility/Acceptability of a Brief Motivational Intervention Integrating Online Personalized Feedback & Tailored Text Messages for Frequent/High-Intensity Cannabis Use in Post-Legalization Landscape
- ClinicalTrials.gov ID
- NCT07011615
- Acronym / sponsor ID
- STUDY00020546
- Conditions
- Cannabis Use
- Study type
- Interventional
- Recruitment status
- Active, not recruiting
- Enrolment
- 120 participants (estimated)
- Lead sponsor
- University of WashingtonUniversity, hospital or other
- Collaborators
- National Institute on Drug Abuse (NIDA)
- Study start
- 8 Dec 2025 (actual)
- Primary completion
- Dec 2026 (estimated)
- Study completion
- Dec 2026 (estimated)
- First posted
- 9 Jun 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The study aims to develop a novel brief motivational mobile health (mHealth) intervention for frequent and/or high-intensity cannabis use for non-collegiate young adults. A total of 120 young adults (ages 18-29, not enrolled at or attending a 4-year college or university) will be randomized to receive a mHealth intervention with text messages for five weeks or to an online resource/program with psychoeducation information about cannabis. The mHealth intervention will focus on prompting the young adult to reflect on their journey with cannabis and to reflect on their personal goals and how cannabis is reflected in these goals. Additional mini-modules are included related to topics such as motivations for use, perceived norms and tracking cannabis use. Participants will return to the program each week to reflect on the prior week and reflect on goals for the upcoming week. All participants will complete a program satisfaction survey and complete follow-up assessments at 3- and 6-months post-program.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Brief Motivational Mobile Health (mHealth) Intervention | Experimental | Behavioral: Brief Motivational Mobile Health (mHealth) InterventionParticipants randomized to the Brief Motivational mHealth intervention will experience a five week self-directed web-based intervention with text messages. |
| Psychoeducational Attention Control | Other | Other: Psychoeducational Attention Control (AC)Participants randomized to the control group will receive a program to learn more about psychoeducational information about cannabis. They will receive psychoeducational material via text messages. |
Who may qualify
- Ages
- 18 to 29 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (6 listed)
- 18-29 years old
- reside in Washington or Oregon State
- have valid email address
- report using cannabis on 15 or more days in the past month, and/or using high THC concentration products in the past month (>60% THC)
- have a mobile phone and agree to receive text messages and has an internet browser
Key exclusion criteria (3 listed)
- females who are pregnant or trying to become pregnant
- those who are in substance abuse treatment at screening
- those attending or enrolled at a 4-year college or university or graduate/professional school.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Brief Motivational Mobile Health (mHealth) InterventionParticipants randomized to the mHealth intervention condition will receive a five-week online program that incorporates weekly text messages. The program will begin with prompting the young adult to reflect on their journey with cannabis and to reflect on their personal goals and how cannabis is reflected in these goals and how their social network may support their goals. Additional mini-modules are included related to topics such as motivations for use, perceived norms and tracking cannabis use. Text messages will be sent weekly to return to the program to prompt reflection and support any goals the participant indicates. | Behavioural | Brief Motivational Mobile Health (mHealth) Intervention |
| Psychoeducational Attention Control (AC)Participants randomized to the control group will receive a program to learn more about psychoeducational information about cannabis. They also receive psychoeducational material via text messages. | Other | Psychoeducational Attention Control |
Primary outcome
Cannabis use - typical hours high in a week
Time frame: Baseline, 3-month follow-up, 6-month follow-up
The count of the self-reported typical number of hours high per week during the past month
Negative cannabis-related consequences
Time frame: Baseline, 3-month follow-up, 6-month follow-up
Total sum score on the Marijuana Consequences Checklist based on number of self-reported cannabis-related consequences experienced in the past month. Higher scores indicate reporting greater number of negative cannabis-related consequences.
1 secondary outcome
Cannabis use - Number of sessions
Time frame: Baseline, 3-month follow-up, 6-month follow-up
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Jun 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Christine M Lee, PhD principal investigator
leecm@uw.edu
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Brief Motivational Mobile Health (mHealth) Intervention in people with Cannabis Use, run by University of Washington at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 3 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Cannabis use - typical hours high in a week (time frame: Baseline, 3-month follow-up, 6-month follow-up). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Jun 2026; AzTrials last refreshed its copy on 7 Nov 2026.