LACHETONPHONE : Impact of a Dedicated Consultation Using a Structured Interview Guide on Screen T… (NCT07685951) | Clinical Trial Compass
Not Yet RecruitingNot Applicable
LACHETONPHONE : Impact of a Dedicated Consultation Using a Structured Interview Guide on Screen Time Among Adolescents Aged 12 to 17 in Primary Care
400 participantsStarted 2026-10-15
Plain-language summary
Adolescents spend a large amount of time on screens, especially smartphones. Excessive screen use has been linked to health problems such as poor sleep, reduced physical activity, academic difficulties, and mental health issues. Primary care professionals often lack practical tools to help young people address this problem.
This study aims to evaluate whether a dedicated medical consultation (DC), using a structured interview guide and a screening questionnaire (e-KID), can help adolescents aged 12 to 17 reduce and improve their screen use. When excessive screen exposure is identified, adolescents are offered a personalized consultation with a healthcare professional. Together, they discuss screen habits, health impacts, and set achievable goals to change usage patterns.
The investigator hypothesizes that adolescents who receive this dedicated consultation by healthcare providers trained with a specific grid will better reduce their smartphone screen time and adopt healthier screen use habits compared to those receiving usual care.
Who can participate
Age range
12 Years – 17 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* Adolescent aged 12 to 17 years at the time of enrolment (participants aged 17 must not have turned 18 on the day of inclusion).
* Adolescent owning a smartphone, with usage \>14 hours/week and a score \>10/21 on the early overexposure screening questionnaire (e-KID).
* Adolescent and parent(s) or legal guardian(s) able to understand the objectives of the research.
* Adolescent whose parent(s) or legal guardian(s) have signed an electronic informed consent (e-Consent) prior to any study-related procedures.
(The minor's signature will be sought but is not mandatory. In accordance with Article L1122-2, consent from one parent/legal guardian is sufficient for inclusion and data analysis; however, consent from both parents will be systematically sought.)
\- Adolescent affiliated with a health insurance plan (either as the beneficiary or dependent).
Exclusion Criteria:
* Adolescent with severe psychiatric disorders (DSM-V diagnosis and/or treatment with amphetamines, neuroleptics, or psychotropic drugs).
* Adolescent currently excluded from participation due to a previous or ongoing study.
* Adolescent under legal guardianship or conservatorship (tutelle or curatelle).
* Adolescent female who is pregnant or breastfeeding (self-reported).
* Adolescent under judicial protection (sauvegarde de justice).
* Adolescent in an emergency situation, with comprehension difficulties, or cognitive impairment.
* Adolescent who does not speak or understand French.
* Ado…
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Change in time spent on the smartphone, measured in hours and minutes (recorded via screenshots), between the baseline visit and one month later, over a period of 7 consecutive days and outside school holidays, in both groups.
Timeframe: At Baseline and 1-month follow-up (7 consecutive days of measurement at each time point, excluding school holidays)