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LACHETONPHONE : Impact of a Dedicated Consultation Using a Structured Interview Guide on Screen Time Among Adolescents Aged 12 to 17 in Primary Care (LACHETONPHONE)

8. juli 2026 opdateret af: University Hospital, Strasbourg, France

LACHETONPHONE : Impact of a Dedicated Consultation Using a Structured Interview Guide on Screen Time Among Adolescents Aged 12 to 17 in Primary Care: a Multicenter Randomized Study.

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.

Studieoversigt

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

400

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Barn

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Beskrivelse

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.
  • Adolescent who opposes participation in the study.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Andet: Control: Standard Practice
Intervention will be compared to standard practice about screen use prevention for adolescents
Standard practice
Eksperimentel: Experimental: Structured Interview Guide
The investigators in the experimental group will be trained in the specific interview framework for the dedicated consultation; they will be required to confirm that they have read and understood how to use it. They will base their dedicated consultation on this interview framework.
a dedicated consultation with a structured interview guide

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
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.
Tidsramme: At Baseline and 1-month follow-up (7 consecutive days of measurement at each time point, excluding school holidays)
Change in time spent on smartphone use, measured in hours and minutes, assessed via participant screenshots of screen-time statistics. Smartphone use will be recorded over 7 consecutive consecutive days at each time point (baseline and 1 month), excluding school holidays, in both intervention and control groups.
At Baseline and 1-month follow-up (7 consecutive days of measurement at each time point, excluding school holidays)

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Efterforskere

  • Ledende efterforsker: Juliette Dr CHAMBE, Dr, Hopitaux Universitaires de Strasbourg

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

15. oktober 2026

Primær færdiggørelse (Anslået)

15. august 2028

Studieafslutning (Anslået)

15. august 2028

Datoer for studieregistrering

Først indsendt

29. juni 2026

Først indsendt, der opfyldte QC-kriterier

29. juni 2026

Først opslået (Faktiske)

6. juli 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

10. juli 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

8. juli 2026

Sidst verificeret

1. juli 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 9461
  • 2025-A01775-44 (Anden identifikator: N° IDRCB)

Plan for individuelle deltagerdata (IPD)

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