NAVO:J School-Based Group Intervention for Adolescent Mental Health

NCT07667179 | Not Yet Recruiting

• 1 other identifier: AJOUIRB-IV-2026-290
• Study Type: interventional
• Target: 250
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of this study is to determine and verify whether a school-based group intervention using the digital mental health platform NAVO:J can effectively improve the mental health of adolescents-particularly reducing depression, anxiety, and stress while enhancing resilience.

Conditions

Resilience; Depression

Outcome Measures

Primary Outcomes (2)

• Change in Depression (PHQ-9)

  Depression is measured using the Korean version of the Patient Health Questionnaire-9 (PHQ-9), based on the DSM-IV criteria for major depressive disorder, assessing symptoms experienced over the past two weeks. The scale consists of 9 items rated on a 4-point Likert scale (score range: 0-27). Higher scores indicate more severe depressive symptoms. Change is assessed by comparing scores at baseline, mid-point, and post-intervention.

  Baseline, week 8 (mid-point), week 17 (post-intervention)

• Change in Resilience (CD-RISC-10)

  Resilience is measured using the 10-item Connor-Davidson Resilience Scale (CD-RISC-10), a self-report measure of an individual's ability to recover and adapt under adversity or stress. Each item is rated on a 5-point Likert scale (score range: 0-40). Higher scores indicate greater resilience. Change is assessed by comparing scores at baseline, mid-point, and post-intervention.

  Baseline, week 8 (mid-point), week 17 (post-intervention)

Secondary Outcomes (8)

• Change in Maum-EASY Anxiety and Depression Problems

  Baseline, week 8 (mid-point), week 17 (post-intervention)

• Change in Maum-EASY Suicide and Crisis Problems

  Baseline, week 8 (mid-point), week 17 (post-intervention)

• Change in Maum-EASY Externalizing Problems

  Baseline, week 8 (mid-point), week 17 (post-intervention)

• Change in Maum-EASY Psychological Trauma Problems

  Baseline, week 8 (mid-point), week 17 (post-intervention)

• Change in Maum-EASY School Life Adjustment

  Baseline, week 8 (mid-point), week 17 (post-intervention)

Other Outcomes (4)

• Change in Big Five Personality Traits (BFI-K-10)

  Baseline, week 8 (mid-point), week 17 (post-intervention)

• NAVO:J App Log Data (Adherence)

  Throughout the intervention period (week 1 to week 17)

• Self-Reported Adherence Questionnaire

  Week 17 (post-intervention)

Study Arms (1)

NAVO:J Intervention Group

EXPERIMENTAL

Participants in this single-arm group use the digital mental health platform NAVO:J for 17 weeks (17 sessions, once a week for approximately 40 minutes). Each session includes app-based activities such as recommended mental health videos, tailored self-care solutions, self-assessments, mind coaching, and diary entries. Mental health outcomes are assessed at baseline, mid-point (week 8), and post-intervention (week 17) using a single-group pre-post design.

Behavioral: NAVO:J (digital mental health platform)

Interventions

NAVO:J (digital mental health platform) BEHAVIORAL

Participants use NAVO:J, a digital mental health platform developed for adolescents, delivered as a structured group intervention over 17 weeks (17 sessions, once weekly, approximately 40 minutes each). The platform provides algorithm-based recommended videos, 12 tailored "mind solutions" based on emotional-behavioral characteristics, self-assessments (personality, depression, anxiety, stress, self-esteem, smartphone use), expert-supported community features, mind coaching, growth tracking across 10 adolescent mental health indicators, and a mood diary. Sessions are facilitated weekly by trained researchers following a standardized manual.

NAVO:J Intervention Group

Eligibility Criteria

• Age: 7 Years - 19 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• Students who apply for the group intervention program
• Possession of an internet-enabled smartphone
• Consent to study participation by both the participant and their legal guardian

You may not qualify if:

• Inability to install or run "NAVO:J" on the participant's smartphone
• Current participation in another interventional study
• A medical condition severe enough to preclude the intervention or outcome assessment
• Judged by the researcher to be unlikely to participate cooperatively through the end of the study

Sponsors & Collaborators

• Ajou University School of Medicine: lead

Study Sites (1)

Ajou Medical University

Suwon, 16499, South Korea

Location

MeSH Terms

Conditions

Depression

Condition Hierarchy (Ancestors)

Behavioral Symptoms; Behavior

Study Officials

• Chang Hyung Hong

  Ajou Medical Center

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Yong Hyuk Choi

CONTACT

+82-31-219-5182; brainist.cho@gmail.com

Anna You

CONTACT

+82-31-219-4696; uanna@ajou.ac.kr

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: June 19, 2026
• First Posted: June 24, 2026
• Study Start: June 24, 2026
• Primary Completion (Estimated): December 31, 2026
• Study Completion (Estimated): May 1, 2027
• Last Updated: June 24, 2026

Record last verified: 2026-06

Data Sharing

• IPD Sharing: Will not share

Locations

KR (1)