Clinical Takeaway
A mobile app called Minder, co-developed with university students, was tested in a randomized controlled trial to assess its impact on mental health and substance use outcomes in the general university population. Digital tools like this are being evaluated because they offer scalable, student-friendly support during a life stage when mental health and substance use problems commonly emerge. Results from this trial provide evidence-based guidance on whether app-based interventions can meaningfully improve outcomes in this high-risk transitional period.
#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 study evaluates a scalable digital intervention that addresses the critical clinical need for accessible mental health and substance use support during the high-risk university transition period. The randomized controlled trial design provides rigorous evidence on whether mobile app-based interventions can effectively reduce symptom burden and substance use behaviors in a population with emerging psychiatric vulnerabilities. Demonstration of efficacy would support integration of evidence-based digital tools into university health systems, potentially extending treatment reach to students who otherwise lack access to traditional mental health services.
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 during a vulnerable developmental period, clinicians should note that mobile app effectiveness studies often suffer from selection bias, with engaged users differing meaningfully from the broader student population who may benefit most from intervention. The study’s reliance on self-reported outcomes and typical attrition rates in digital health trials warrant cautious interpretation of effect sizes, and it remains unclear how results translate to students with more severe or complex presentations who may require synchronous clinical contact. Additionally, the codevelopment process with students may enhance acceptability but does not address whether improvements persist beyond the study period or whether specific student subgroups derive differential benefit. For practitioners, this work suggests that offering a vetted app as an adjunct to standard care or as a low-barrier entry point for students hesitant about traditional mental health services could be worthwhile, provided that robust safety protocols exist for identifying and triaging those requiring more intensive intervention.
| |