Abstract Background Adolescence is a crucial developmental stage characterized by rapid biological, psychological, and social changes, that increase vulnerability to mental health issues. Nearly half of all mental health conditions have their onset during this period and are influenced by individual, family, and environmental factors. Schools play a key role in promoting mental well-being among adolescents due to their accessibility and reach. While school-based mental health prevention interventions have shown positive outcomes in high-income countries, evidence from low- and middle-income countries (LMICs) is limited. This study aimed to assess the feasibility and acceptability of Health Action in Schools for a Thriving Adolescent Generation (HASHTAG), a comprehensive school-based intervention for adolescents aged 13–16 years in Nepal. Methods A feasibility cluster-randomized controlled trial was conducted in four secondary schools in Morang district, Nepal. Adolescents completed surveys at baseline and at a 3-month follow-up to evaluate mental well-being, emotional and behavioral outcomes, social support, school climate, and functioning. The intervention comprised two components: Thriving Environment in Schools (TES), implemented over three months and Thriving Together (TT), delivered through six weekly sessions. Quantitative data were collected electronically and analyzed descriptively. Qualitative data were gathered through focus group discussions and in-depth interviews with adolescents, teachers, and facilitators to explore implementation experiences and were analyzed thematically. Results Both the TES and TT components were well received, with TT sessions achieving an average attendance rate exceeding 70%, and being delivered as planned by trained facilitators, indicating good acceptability and feasibility. Explanatory analysis suggested a positive trend in anxiety outcomes in the intervention group while, social support showed a modest increase. Other outcomes showed small, non-significant changes. Qualitative findings highlighted perceived benefits such as improvements in school cleanliness, staff–student relationships, bullying and discrimination reduction, and positive social and behavioral changes. Participants found breathing exercises, games, the workbook, and the ‘feeling box’ particularly helpful. Implementation challenges included limited space, logistical constraints, COVID-19 related disruptions, and session length. Conclusion HASHTAG demonstrated feasibility and accessibility as a school-based intervention for adolescents in Nepal, with preliminary indications of potential benefits. Addressing identified implementation challenges will be important for optimizing delivery in future studies. A fully powered randomized controlled trial is warranted to evaluate effectiveness.
Luitel et al. (Sat,) studied this question.
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