Mobile Adaptive Intervention to Reduce Negative Consequences Associated With Simultaneous Alcohol and Marijuana Use in Young Adults in Primary Care
Kaiser Permanente
Summary
The goal of this treatment development project is to develop an adaptive ecological momentary intervention (a-EMI) for young adults using marijuana and alcohol that is grounded in self-regulation and social cognitive theories. To determine the most efficacious intervention strategies, the investigators will test variations of intervention components to identify the best combination. The study will take place at the Center for Integrated Health Care Research at Kaiser Permanente Hawaii (KPHI), located in Honolulu (island of Oahu). Following pilot testing with 6 participants, the study team will assess the feasibility and efficacy of intervention components on two primary outcomes (negative consequences and protective behavioral strategies \[PBS\]) using a fractional factorial experimental design, with post-intervention assessment and one- and three-month follow-ups. 136 diverse young adults recruited from KPHI who report current simultaneous alcohol and marijuana (SAM) use will be randomly assigned to one of eight groups, representing experimental conditions that include or do not include intervention strategies focused on craving reduction and PBS. As a result of this process, individual and/or combined components that lead to improved outcomes will be retained in a subsequent randomized controlled trial, while ineffective components will be eliminated.
Description
Up to one-third of young adults report use of marijuana or alcohol in the past month, with sizable numbers reporting daily marijuana use and heavy episodic drinking. Simultaneous alcohol and marijuana (SAM) use, defined as use of both substances at the same time or within a few hours of each other with overlapping effects, is common among young adults. Recent research has shown that SAM use leads to greater negative consequences compared to use of either substance alone. No current intervention addresses SAM use specifically and few leverage new technological methods (e.g., smartphones) or str…
Eligibility
- Age range
- 18–30 years
- Sex
- All
- Healthy volunteers
- No
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
Interventions
- BehavioralCondition 1: Craving daily+PBS daily
Participants in this condition will complete ecological momentary assessment (EMA) for six weeks. Following the initial two weeks of EMA, participants in this condition will complete an introduction module including psychoeducation, personalized feedback, and goal setting. Participants will then receive craving reduction and protective behavioral strategy (PBS) messages, each delivered once daily, until the end of the six-week period.
- BehavioralCondition 2: Craving daily+PBS trigger
Participants in this condition will complete EMA for six weeks. Following the initial two weeks of EMA, participants in this condition will complete an introduction module including psychoeducation, personalized feedback, and goal setting. Participants will then receive craving reduction messages delivered once daily and PBS trigger messages that will be based on responses to signal-contingent EMA questions.
- BehavioralCondition 3: Craving trigger+PBS daily
Participants in this condition will complete EMA for six weeks. Following the initial two weeks of EMA, participants in this condition will complete an introduction module including psychoeducation, personalized feedback, and goal setting. Participants will then receive craving reduction messages that will be delivered based on responses to signal-contingent EMA questions and PBS delivered once daily.
- BehavioralCondition 4: Craving trigger+PBS trigger
Location
- Kaiser Permanente Hawaii, Center for Integrated Health Care ResearchHonolulu, Hawaii