# Endocannabinoid System Research: Cannabis in Mental Health RCTs > **Author:** Benjamin Caplan, MD (ABFM Board Certified, MA Lic. #240562, NPI: 1962722637) > **Publisher:** CED Clinic (https://cedclinic.com) > **Canonical URL:** https://cedclinic.com/digital-mental-health-intervention-cannabis-rcts/ > **Published:** 2026-03-07T15:58:33-04:00 | **Last Modified / Clinically Audited:** 2026-09-28T17:09:47-04:00 > **Clinical Summary:** Explore digital mental health intervention research focusing on cannabis and randomized controlled trials improving university student outcomes. --- #### Clinical Takeaway A randomized controlled trial tested the Minder mobile app, co-designed with university students, for improving mental health and substance use outcomes during a high-risk transitional period. Digital tools like this show promise for scalable, accessible support in college populations. Results from this trial provide direct evidence on whether app-based intervention can meaningfully move the needle on student mental health and substance use at a population level. ### #4 Effectiveness of the Minder Mobile Mental Health and Substance Use Intervention for University Students: Randomized Controlled Trial. **Citation:** Vereschagin Melissa et al. *Effectiveness of the Minder Mobile Mental Health and Substance Use Intervention for University Students: Randomized Controlled Trial.* Journal of medical Internet research. 2024. PMID: 38536225. **Study type:** Randomized Controlled Trial, Journal Article, Research Support, Non-U.S. Gov’t  |  **Topic area:** Anxiety & PTSD  |  **CED Score:** 12 Design: 5 Journal: 0 N: 3 Recency: 1 Pop: 2 Human: 1 Risk: 0 Why This Matters This randomized controlled trial evaluates a scalable digital intervention specifically designed to address the mental health and substance use challenges that emerge during the critical transition period of university attendance, where traditional clinical services often have limited reach. The findings provide evidence regarding whether mobile app-based interventions can effectively reduce substance use and mental health symptoms in a high-risk population, informing clinical practice regarding technology-enabled prevention and treatment strategies for college-age patients. Given the documented acceptability and scalability advantages of digital interventions, positive outcomes would support integration of evidence-based mobile apps into standard clinical care pathways for university students. **Abstract:** BACKGROUND: University attendance represents a transition period for students that often coincides with the emergence of mental health and substance use challenges. Digital interventions have been identified as a promising means of supporting students due to their scalability, adaptability, and acceptability. Minder is a mental health and substance use mobile app that was codeveloped with university students. OBJECTIVE: This study aims to examine the effectiveness of the Minder mobile app in improving mental health and substance use outcomes in a general population of university students. METHODS: A 2-arm, parallel-assignment, single-blinded, 30-day randomized controlled trial was used to evaluate Minder using intention-to-treat analysis. In total, 1489 participants were recruited and randomly assigned to the intervention (n=743, 49.9%) or waitlist control (n=746, 50.1%) condition. The Minder app delivers evidence-based content through an automated chatbot and connects participants with services and university social groups. Participants are also assigned a trained peer coach to support them. The primary outcomes were measured through in-app self-assessments and included changes in general anxiety symptomology, depressive symptomology, and alcohol consumption risk measured using the 7-item General [Anxiety Disorder](https://cedclinic.com/cannabis-adolescent-psychiatric-risk-data-study/) scale, 9-item Patient Health Questionnaire, and US Alcohol Use Disorders Identification Test-Consumption Scale, respectively, from baseline to 30-day follow-up. Secondary outcomes included measures related to changes in the frequency of substance use (cannabis, alcohol, opioids, and nonmedical stimulants) and mental well-being. Generalized linear mixed-effects models were used to examine each outcome. RESULTS: In total, 79.3% (589/743) of participants in the intervention group and 83% (619/746) of participants in the control group completed the follow-up survey. The intervention group had significantly greater average reductions in anxiety symptoms measure Clinical Perspective The Minder app study offers encouraging preliminary data on digital mental health and substance use support for university students, a population at genuine risk during the transition to campus life. However, the available abstract is incomplete, limiting our ability to assess outcome measures, effect sizes, follow-up duration, and potential selection bias inherent in app-based interventions where engagement itself may correlate with motivation for change. University students represent a relatively tech-savvy demographic, which may enhance acceptability here but could limit generalizability to other populations or clinical settings with lower digital literacy or [health literacy](https://cedclinic.com/digital-health-expertise-modern-challenge/). Key confounders such as concurrent counseling, peer support, or medication use are not mentioned in the available text, and we would need to examine whether improvements reflect the app’s specific mechanisms or simply the benefit of structured engagement itself. If further details confirm meaningful and sustained improvements in both mental health and substance use outcomes, integrating such tools into university health services could provide accessible early intervention while reserving intensive clinical resources for students requiring higher levels of care.  |   |  Further Reading CED Clinic Blog[Cannabis-Infused Beverages as Alcohol Alternatives: New York at Five Years](https://cedclinic.com/cannabis-beverage-substitution-alcohol-new-york-five-years/) Cannabis Policy Wire[Policy Watch: 20 Regulatory Updates — March 10, 2026](https://cedclinic.com/dea-scheduling-synthetic-opioids-regulatory-updates-2026/) Research Digest[Daily Digest 2026-03-07](https://cedclinic.com/adolescent-cannabis-psychiatric-outcomes-2026-digest/) [View on PubMed ↗](https://pubmed.ncbi.nlm.nih.gov/38536225/)[Full Text ↗](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11007604/)[DOI ↗](https://doi.org/10.2196/54287) [https://cedclinic.com/contact/](https://cedclinic.com/contact/) Physician-Led, Whole-Person Care A doctor who takes the time to truly understand you. Personal care that starts with listening and is guided by experience and ingenuity. Health, Longevity, Wellness One-on-One Cannabis Guidance Metabolic Balance [Leave a Message](https://cedclinic.com/contact/) [Metabolic Care](https://cedclinic.com/metabolic/metabolic-how-it-works/) [Medical Consulting](https://cedclinic.com/book/) [Cannabis Care](https://cedclinic.com/book/) [https://cedclinic.com/contact/](https://cedclinic.com/contact/) RELATED READING AT CED CLINIC Continue exploring the evidence [Endocannabinoid System Clinical Research: Cannabis RCT Evidence](https://cedclinic.com/digital-mental-health-intervention-cannabis-research-insights/) Review clinical evidence from randomized controlled trials on cannabis and the [endocannabinoid system](https://cedclinic.com/endocannabinoid-system-fear-extinction/). [Explore Cannabis RCT Evidence](https://cedclinic.com/digital-mental-health-intervention-cannabis-research-insights/) [Endocannabinoid System Clinical Research: Mobile Mental Health RCT](https://cedclinic.com/digital-mental-health-intervention-rct-minder-app-study/) Discover findings from a mobile mental health randomized controlled trial focused on university students. [Read Mobile Mental Health RCT](https://cedclinic.com/digital-mental-health-intervention-rct-minder-app-study/) [Endocannabinoid System Clinical Research: Cannabis and Mental Health RCT](https://cedclinic.com/minder-mobile-mental-health-intervention-rct-evidence/) Insights into [cannabis use](https://cedclinic.com/cannabis-cardiovascular-health-insights-2024/) and mental health outcomes from recent randomized controlled trials. [Learn About Cannabis & Mental Health RCT](https://cedclinic.com/minder-mobile-mental-health-intervention-rct-evidence/) Have thoughts on this? 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