NCT05442294

Brief Summary

"Juego de Llaves" is a universal school-based drug prevention program for adolescents aged 12-15 years. The outcome evaluation is critical to determine the quality of preventive interventions. This protocol describes the full protocol of the evaluation design, instruments, randomization procedure, follow-ups, and primary outcomes. Method: Non-Randomized Control Cluster Trial in a set of Spanish school centers at the compulsory secondary education level, with follow-ups at 12-, 24- and 36-months. Participants will be allocated to an experimental or control (no intervention) group. Using an electronic ad-hoc designed App, a battery of instruments will be used to assess addictive behaviors, sociodemographic variables, school climate and other transdiagnostic psychological variables. A piloting test will be conducted to test the implementation protocol and to calculate the sample size needed for the outcome evaluation. After implementing the program, longitudinal statistical approaches will be used to inform on the intervention efficacy and potential moderators and mediators. There is a lack of effectiveness assessments of school prevention programs, and it is expected that this protocol will expedite the monitoring and ongoing evaluation in prevention.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
2,500

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 15, 2022

Completed
16 days until next milestone

First Posted

Study publicly available on registry

July 1, 2022

Completed
2 months until next milestone

Study Start

First participant enrolled

September 1, 2022

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2023

Completed
2.5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2025

Completed
Last Updated

July 1, 2022

Status Verified

June 1, 2022

Enrollment Period

10 months

First QC Date

June 15, 2022

Last Update Submit

June 28, 2022

Conditions

Keywords

AdolescentsAddictive behaviorsEvaluationUniversal school-based preventionTransdiagnostic approach

Outcome Measures

Primary Outcomes (7)

  • Substance use: Tobacco

    Ítems from the survey on drug use in secondary education in Spain (ESTUDES) for the National Plan on Drugs

    Past 30-day period

  • Substance use: Alcohol

    Ítems from the survey on drug use in secondary education in Spain (ESTUDES) for the National Plan on Drugs

    Past 30-day period

  • Substance use: Cannabis

    Ítems from the survey on drug use in secondary education in Spain (ESTUDES) for the National Plan on Drugs

    Past 30-day period

  • Non-substance use behavior: Gaming

    Ítems from the survey on drug use in secondary education in Spain (ESTUDES) for the National Plan on Drugs

    Past 30-day period

  • Non-substance use behavior: Gambling

    Ítems from the survey on drug use in secondary education in Spain (ESTUDES) for the National Plan on Drugs

    Past 30-day period

  • Reinforcement ratio

    Ad-hoc questionnaire (SAUPI; unpublished)

    Past-year period

  • Consecuences of addictive behaviors

    ARSS-SUV (adapted from Murphy et al., 2005)

    Past 30-day period

Secondary Outcomes (5)

  • Resilience

    Past 30-day period

  • Behavioral problemas

    Past 30-day period

  • Emotion regulation

    Past 30-day period

  • Suicidal behavior

    Past 30-day period

  • Impulsivity

    Past 30-day period

Study Arms (2)

Juego de Llaves group

EXPERIMENTAL

This group will receive the prevention program during the academic year in school hours. The prevention program is called Juego de Llaves. The main goal of this program is to prevent substance use and engagement in other addictive behaviors. It is intended to be delivered by teachers in a six to twelve session format through different modules that cover the following areas: emotional regulation, cognitive strategies, social interaction, free time, education on drugs and life values

Behavioral: Juego de Llaves

Control group

NO INTERVENTION

The control group will receive the usual teaching activities regarding substance use prevention.

Interventions

Juego de LlavesBEHAVIORAL

The main goal of this program is to prevent substance use and engagement in other addictive behaviors. It is intended to be delivered by teachers in a six to twelve session format through different modules that cover the following areas: emotional regulation, cognitive strategies, social interaction, free time, education on drugs and life values

Juego de Llaves group

Eligibility Criteria

Age12 Years - 15 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Schools having secondary education.
  • Schools located in Spain.
  • Schools willing to participate under the conditions of the study before randomization.

You may not qualify if:

  • Schools having other interventions with a strong package on substance use prevention targeted the same grades.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Grupo de Conductas Adictivas, University of Oviedo

Oviedo, Principality of Asturias, 33006, Spain

Location

Related Links

MeSH Terms

Conditions

Behavior, AddictiveAlcoholismSmokingAdolescent Behavior

Condition Hierarchy (Ancestors)

Compulsive BehaviorImpulsive BehaviorBehaviorAlcohol-Related DisordersSubstance-Related DisordersChemically-Induced DisordersMental Disorders

Central Study Contacts

Susana Al-Halabí, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Non-Randomized Control Cluster Trial
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Associate Professor at the Department of Psychology

Study Record Dates

First Submitted

June 15, 2022

First Posted

July 1, 2022

Study Start

September 1, 2022

Primary Completion

June 30, 2023

Study Completion

December 30, 2025

Last Updated

July 1, 2022

Record last verified: 2022-06

Locations