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Evaluation of the School-based SIM Program in Upper Secondary School Students

NCT07111676 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 560

Last updated 2025-08-08

No results posted yet for this study

Summary

Söderqvist et al. recently reported on a new school-based program designed to promote mental well-being in adolescents: the Solution-Focused Intervention for Mental Health (SIM, https://doi.org/10.1016/j.ssmmh.2025.100493). While previous studies on SIM were designed mainly to test, develop, refine and improve the program and its feasibility in a school setting, the current project aims to test the efficacy of SIM on adolescent mental health, primarily mental well-being.

A two-arm, cluster, randomized, controlled trial will be conducted. The intervention group will receive the SIM program, and the control group will receive a lecture on mental well-being along with the usual school provisions. Randomization is done by class because the intervention takes place in mentor groups. Based on the results of our largest feasibility study, 559 students are required for paired measurements to detect a small effect on mental well-being with 80% power and a significance level of 0.05. The evaluation is based on validated instruments, with measurements taken before and after the intervention, as well as six and nine months later. The project is being implemented in collaboration with six upper secondary schools in Sweden. Recruitment and anchoring at the participating schools, as well as class randomization strafied on educational program, took place in 2025. Enrollment of participating students will begin in January 2026.

This project will contribute new knowledge to the field by evaluating a universal program for schools to use in their health promotion work. The latter is important since high levels of mental well-being independently predict a lower incidence of subsequent mental illness and have a range of positive effects on individuals and society.

Conditions

  • Solution-focused Capability
  • Mental Well-being
  • Mental Problems
  • Perceived Stress

Interventions

BEHAVIORAL

The Solution-focused Intervention for Mental health (SIM)

SIM is a manual-based program delivered to upper secondary school students in mentor groups by a specially trained teacher. It consists of group-based, solution-focused coaching set within a normative frame of mental well-being. By co-creating perceptions and meaning through language and dialogue, focusing on resources for approaching a preferred future, students increase their solution-building capability, thereby acquiring skills to become agents in their own life, more aware of and prone to invest in mental health. For a detailed description, see Söderqvist et al. https://doi.org/10.1016/j.ssmmh.2025.100493.

Sponsors & Collaborators

  • Region Örebro County

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
15 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-12-01
Primary Completion
2027-10-31
Completion
2027-10-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07111676 on ClinicalTrials.gov