Developing and Testing an Online Intervention for Alcohol and Cannabis Misuse and Healthy Relatio… (NCT06422299) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
Developing and Testing an Online Intervention for Alcohol and Cannabis Misuse and Healthy Relationship Skills Among Young Adult Couples
60 participantsStarted 2026-10-01
Plain-language summary
The goal of this clinical trial is to develop and test a brief online intervention to reduce alcohol and cannabis misuse and improve healthy relationship skills among young adult couples. The main questions it aims to answer are:
* Will the intervention be feasible and acceptable to young adult couples?
* Will the intervention demonstrate initial efficacy in reducing risky substance use and increasing relationship functioning?
Eligible couples will complete a virtual baseline session and be randomized to intervention condition (online intervention with 3-5 weeks of self-paced modules) or control condition (no intervention). Couples will complete two follow-up surveys (post-assessment - approximately 5 weeks after baseline, 3-month). Couples in the control condition will be offered the intervention after 3-month follow-up.
Researchers will compare intervention and control groups to see if there there is a difference between the groups on substance misuse and relationship functioning at post-assessment and 3-month follow-up.
Who can participate
Age range
18 Years – 29 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Both partners in the couple are 18-29 years old
* In a committed romantic relationship (e.g., dating seriously, cohabiting, married) with each other for at least 3 months
* Face-to-face contact their partner at least 5 days per week
* Live in Washington State
* Have a valid email address and access to a cell phone
* Report alcohol and cannabis co-use at least three times in the past month
* Willingness to: complete online surveys during the allotted time frames, receive text messages and emails from the project, complete a baseline session, and participate during the same time period as their partner
Exclusion Criteria:
* Couples who endorse any perpetration or receipt of severe interpersonal aggression during screening will be excluded and provided with resources
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1This trial targets both alcohol and cannabis misuse together alongside relationship skills — given my specific situation, does it make sense to address both substances at the same time, or would a more focused treatment be a better first step for me?
2Since this study isn't recruiting yet, how long might it realistically be before I could even get started, and what options are available to me in the meantime?
3The trial measures things like 'heavy episodic drinking' and 'high intensity marijuana use' — based on my current patterns, do I actually fit the kind of use this program is designed to address?
4This is listed as Phase NA, meaning it's likely a behavioral study without a drug involved, but I want to understand — what are the potential risks or downsides of participating in an online program like this, even if it's not a medication trial?
5The trial involves both partners in a couple, so what happens if my partner is willing to participate but our relationship situation changes during the study — would that affect my ability to continue or benefit from the program?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Heavy episodic and high intensity drinking
Timeframe: Screening, baseline, approximately 5 weeks after baseline, 3-month followup
2
Daily Drinking Questionnaire (DDQ)
Timeframe: Screening, baseline, approximately 5 weeks after baseline, 3-month followup
3
Daily Marijuana Questionnaire (DMQ)
Timeframe: Screening, baseline, approximately 5 weeks after baseline, 3-month followup
4
Intensity of Marijuana Use
Timeframe: Screening, baseline, approximately 5 weeks after baseline, 3-month followup
5
Perceived Program Effects on Healthy Relationship Self-Efficacy items
Timeframe: Screening, baseline, approximately 5 weeks after baseline, 3-month followup
6
Couples Satisfaction Index
Timeframe: Screening, baseline, approximately 5 weeks after baseline, 3-month followup