ISRCTN14396374.

Study name	Adapting DIALOG+ and building capacity in schools to support mental well‐being and resilience in post‐conflict Colombia during the COVID‐19 pandemic
Methods	Study design: RCT Country: Colombia
Participants	Adolescent students (aged 12‐18 years) Inclusion criteria: a. Mental Health Survey: adolescents (aged 12‐18 years) in eight public schools who are willing to participate and whose parents provide informed consent; b. DIALOG+ Adaptation: adolescents (aged 12‐18 years) who request advice from a teacher or school counsellor. Exclusion criteria: unwilling or unable to provide informed consent or assent Stated purpose: to build capacity in school mental health and to adapt an intervention called DIALOG+ for use in adolescents in post‐ conflict Colombia during the COVID‐19 pandemic
Interventions	Intervention: DIALOG+ Adaptation 8 teachers/40 adolescents; to have twice‐monthly DIALOG+ meetings for 6 months Control: Usual care control group (4 teachers/20 adolescents; meetings as requested, without DIALOG)
Outcomes	Participants'outcomes of interest for this review Mental health symptoms/distress/PTSD – Post Traumatic Stress Disorder Checklist (PCL) Mental health symptoms/depression – Patient Health Questionnaire‐8 (PHQ‐8) Mental health symptoms/anxiety – Generalized Anxiety Disorder‐7 (GAD‐7) Quality of life – Manchester Short assessment (MANSA) Social outcomes – Objective Social Outcomes Index (SIX) Economic outcomes Nil Time points: baseline, post‐intervention (6 months)
Starting date	15 April 2021 (first enrolment)
Contact information	Francois van Loggerenberg, f.vanloggerenberg@qmul.ac.uk
Notes	Source of funding: Newton Fund, Ministry of Science, Technology and Innovation (MInCiencias) Prospective trial registration number: ISRCTN14396374