The aim of the AWARE (Approaches for Wellbeing and Mental Health Literacy:?Research?in Education) trial was to assess the impact of two interventions that have already been developed and found to be effective in other countries (Kutcher et al., 2015; Wasserman et al., 2015) to see if they might be effective in improving mental health related outcomes in young people in English secondary schools. The trial was conducted in three waves between 2018 and 2024. For each wave, baseline data were collected September to October; random allocation occurred post-baseline at the end of October or beginning of November; training of teachers in interventions (where relevant) occurred in November and December and interventions were delivered between January and April. Follow up data were collected at first follow up (3-6 months after the start of intervention delivery) and second follow up (9-12 months post intervention). This briefing focuses on the results for the AWARE trial which tested two established school-based curriculum interventions that have been developed and trialled elsewhere in the world: Youth Aware of Mental Health (YAM) and The Mental Health and High School Curriculum Guide (The Guide). Specifically the trial explored the impact of these interventions in the short and longer term on young people's self-reported emotional difficulties and intentions to seek help in future if experiencing mental health problems (intended help-seeking). The trial was conducted with 12,166 pupils across 153 schools.