Clinical Takeaway
A randomized controlled trial tested the Minder mobile app, co-designed with university students, to address mental health and substance use concerns during the high-risk transition into higher education. Digital tools like this are increasingly studied because they can reach large student populations without requiring in-person clinical resources. Results from this trial provide direct evidence on whether app-based intervention can produce measurable improvements in student mental health and substance use outcomes.
#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 randomized controlled trial provides empirical evidence on whether scalable digital interventions can effectively reduce mental health and substance use disorders during a critical developmental period when these conditions commonly emerge in young adults. The study’s significance lies in its potential to identify an implementable, student-centered technological solution that could address the substantial mental health and substance use burden in university populations, where traditional clinical services often face accessibility and capacity constraints. If effective, the Minder app could serve as a validated adjunct or alternative to standard care, offering clinicians a tool to extend evidence-based interventions to a large, underserved population with demonstrated acceptability.
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 during a high-risk developmental period, which addresses a genuine gap in accessible, scalable intervention delivery. While the digital intervention approach is pragmatic and the involvement of end-users in app design enhances relevance, we should note important limitations: the study population is restricted to university students, outcomes may reflect selection bias toward more engaged or digitally-savvy individuals, and long-term durability of any benefits remains unclear without extended follow-up data. Digital mental health tools show promise as adjuncts to traditional care, particularly for reducing barriers to access, but they should not be considered replacements for clinical assessment or in-person evaluation of substance use concerns. For clinicians, this work suggests that recommending evidence-based mobile apps tailored to student populations may increase care engagement and reach, though the effectiveness of any digital tool depends significantly on the quality of clinical support available alongside it and on screening for those who may require more intensive intervention.
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