Clinical Takeaway
A randomized controlled trial tested the Minder mobile app, co-developed with university students, to address mental health and substance use during a high-risk transitional period. The study evaluated whether this scalable digital tool could meaningfully improve outcomes in a general university population. Results from this trial provide direct evidence on whether app-based interventions can serve as a practical first-line support option for students who may not access traditional clinical care.
#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.
Design: 5 Journal: 0 N: 3 Recency: 1 Pop: 2 Human: 1 Risk: 0
This RCT provides evidence for a scalable digital intervention addressing the critical gap in mental health and substance use support during the high-risk university transition period. The codevelopment approach with students and mobile delivery format offer practical advantages for implementation in resource-limited settings and may improve engagement compared to traditional clinical interventions. Demonstration of Minder’s effectiveness could inform institutional adoption and establish a replicable model for addressing dual mental health and substance use pathology in young adult populations.
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 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
🧠 This randomized controlled trial evaluates a student-codeveloped mobile app for mental health and substance use support, addressing a genuine gap in accessible campus interventions during a high-risk developmental period. While the digital delivery model offers clear scalability advantages and the participatory design approach strengthens relevance to the target population, clinicians should note that app-based outcomes often reflect motivated early adopters and may not generalize to students with more severe symptoms or those less engaged with technology. The heterogeneity of “mental health and substance use challenges” among university students—ranging from adjustment difficulties to emerging psychiatric or use disorders—means that demonstrating efficacy in an RCT population doesn’t clarify which students benefit most or whether the app functions as an adequate standalone intervention versus a useful adjunct to in-person care. In practice, the Minder app may serve best as a low-barrier screening and engagement tool to identify students needing referral for evaluation, while clinicians should remain cautious about assuming digital interventions reduce the need for traditional