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Efficacy and feasibility of a school-based IMPROVED psychological intervention for problematic mobile phone use in adolescents

A single-arm pre-post feasibility and preliminary efficacy study of a school-based IMPROVED psychological intervention for problematic mobile phone use in adolescents

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600125600
Enrollment
Unknown
Registered
2026-05-28
Start date
2026-06-01
Completion date
Unknown
Last updated
2026-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None

Interventions

Intervention group:School-based mental health intervention class

Sponsors

Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1.Students enrolled in classes participating in this study in Zigong City, Sichuan Province. 2.The student's class is included in this study. 3.The student is willing to participate in the study-related courses and assessments. 4.Voluntary participation in this study with signed informed consent. Since the participants are minors, their legal guardians must be informed on their behalf and sign the informed consent form.

Exclusion criteria

Exclusion criteria: 1.Students who are unable to complete questionnaire assessments due to significant cognitive, language, or comprehension impairments. 2.Other special circumstances deemed by the school or research team that make the student unsuitable for participating in group courses or completing study assessments. 3.Vulnerable populations other than minors, including individuals with mental disorders, cognitive impairments, critically ill patients, pregnant women, and illiterate persons.

Design outcomes

Primary

MeasureTime frame
Problematic smartphone use;

Secondary

MeasureTime frame
Maladaptive cognitions;General self-efficacy;Qualitative feedback;Insomnia;Anhedonia;Internet gaming disorder symptoms;Anxiety symptoms;Satisfaction;Quality of life;Craving for smartphone;Well-being;Functional impairment;Smartphone use duration;Depressive symptoms;

Countries

China

Contacts

Public ContactYanhui Liao

Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University

tangliaoyanhui@163.com+86 571 8788 7805

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Jun 11, 2026