Clinical Takeaway
A randomized controlled trial tested the Minder mobile app, co-developed with university students, to address mental health and substance use issues during the high-risk college transition period. Digital tools like this are being evaluated because they can reach large student populations with low barriers to access. Results from this trial provide direct evidence on whether a student-designed app can meaningfully improve real-world 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 RCT provides evidence for whether a student-designed digital intervention can effectively reduce mental health and substance use problems during a critical developmental period when these conditions typically emerge. The findings are clinically relevant because they address the scalability gap in mental health and substance use treatment for university populations, where traditional in-person services are often insufficient to meet demand. If Minder demonstrates efficacy, it could inform implementation of accessible, peer-informed digital therapeutics within university health systems as either standalone interventions or adjuncts to standard care.
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
? While the Minder app shows promise as a scalable digital intervention for university students navigating mental health and substance use challenges, clinicians should recognize that mobile app efficacy studies often benefit from selection bias, with more engaged students and those with milder presentations more likely to complete randomized trials. The transition period of university attendance does create a legitimate window for early intervention, yet we lack clarity on how results generalize to students with more severe psychiatric comorbidities, those from underserved backgrounds, or those already engaged in treatment with providers. Implementation in clinical practice requires honest conversation with patients about the app’s role as a complement to, not replacement for, professional care, particularly when substance use or suicidality emerges. For family medicine providers overseeing student populations, Minder may serve as a useful adjunct tool for those motivated to engage with digital supports, but clinical judgment remains essential in identifying which students would benefit most and in maintaining direct assessment capacity.
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