Cannabis Use Among Adolescents and the Effectiveness of Rehabilitation Interventions: A Systematic Review

Introduction: The rising prevalence of cannabis consumption among adolescents has become a significant public health concern. Understanding the impact of various rehabilitation strategies is essential for designing effective approaches to curb use and address associated risks. This review aimed to assess the outcomes of different intervention methods for teenagers using cannabis, focusing on their ability to decrease consumption, enhance psychosocial well-being, and support sustained recovery. Methods: A systematic literature search was conducted across multiple databases, including PubMed, Web of Science, Scopus, Cochrane Library, and PsycINFO published between 2013 and 2025. The quality of the studies was evaluated using the Critical Appraisal Skills Program (CASP) tool. Data extraction and synthesis were conducted following the PRISMA guidelines. Results: In the study, 11 studies were included, encompassing diverse intervention types such as brief motivational interventions, web-based programs, computerized treatments, family therapies, and digital health tools. Motivational interviewing (MI) and personalized feedback (PF) emerged as common components, with some evidence suggesting reductions in days spent on cannabis use and related symptoms. Web-based and computerized interventions demonstrated promise in decreasing consumption frequency. The findings demonstrated variability in intervention content, delivery, and outcome measures, emphasizing the need for tailored approaches aligned with target population needs. Factors such as recruitment setting, intervention duration, and measurement sensitivity influenced observed outcomes. Conclusion: Multiple intervention strategies revealed potential in reducing cannabis use among adolescents, though methodological heterogeneity limits definitive conclusions. Future research should focus on standardized, population-specific designs, and sensitive outcome measures to enhance intervention efficacy and applicability.