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Alerta Alcohol. Web-based Computer-tailored Intervention for Binge-drinking Prevention in Spanish Adolescents

Alerta Alcohol. Design, Implementation, and Evaluation of a Tailored Web-based Computer-tailored Intervention for Selective Prevention of Binge-drinking in Spanish Adolescents.

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03288896
Enrollment
1230
Registered
2017-09-20
Start date
2016-11-01
Completion date
2017-06-30
Last updated
2017-09-20

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

Conditions

Adolescent Behavior, Alcohol Drinking, Binge Drinking

Keywords

Adolescence, Alcohol Drinking, Binge Drinking, I-Change model, Web-based interventions, Computer-tailoring

Brief summary

This study consists in the the design, implementation, and evaluation of the first web-based computer tailored intervention program aimed at the prevention of binge drinking in Spanish adolescents (Alerta Alcohol). A Cluster Randomized Controlled Trial is conducted to test the effectiveness of Alerta Alcohol in students aged 16 to 18 years across 16 high schools from Andalusia (southern Spain), which are randomized either to the experimental or the control condition (EC and CC).

Detailed description

Binge-drinking in adolescents is a highly prevalent healthcare problem that associates physical and mental health complications and community implications. The Alerta Alcohol program is based on the I-Change Model. Focus and Delphi groups are used to obtain further information on items included in the program. A pilot study is conducted to identify strengths and weaknesses. A Cluster Randomized Controlled Trial is carried out. The schools from Andalusia are randomized either to the experimental or the control condition (EC and CC). The EC receives the Alerta Alcohol intervention, which consists of four sessions at school: baseline questionnaire and two sessions where adolescents are provided with answers related to their views to provide highly specific feedback regarding their knowledge, risk perception, self-esteem, attitude, social influence, and self-efficacy. In addition, two booster sessions are given at home to reinforce the contents. The CC just completes the baseline and the evaluation questionnaires and then they are allowed to receive the intervention as well (as a waiting list control condition). Evaluation takes place after four months. The primary endpoint is binge drinking within 30 days prior to evaluation and alcohol use in the previous week. It is expected that Alerta Alcohol reduces the prevalence of binge drinking by 10%. Follow up analyses are carried out to determine the differences in effectiveness according to the compliance of the program (quality of the implementation).

Interventions

BEHAVIORALAlerta Alcohol

The intervention consists of preventive messages about the benefits of not consuming alcohol, reducing the positive attitudes and encouraging the negative attitudes towards alcohol drinking and binge drinking, as well as social influence and self-efficacy, by personalized feedback. Skills and action plans are encouraged to help the student to reject binge drinking. This information is presented through different tailored messages. Moreover, four avatars (two males and two females), which can be chosen as part of the story development. This story consists of a short story about the alcohol consumption by adolescents.The stories take place in three different scenarios (at home, at celebrations and in public places).

Sponsors

Junta de Andalucia
CollaboratorOTHER_GOV
Maastricht University
CollaboratorOTHER
University of Seville
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Intervention model description

A Cluster Randomized Controlled Trial is conducted to test the effectiveness of Alerta Alcohol in students aged 16 to 18 years. The study is performed in 16 high schools from Andalusia (southern Spain), which are randomized either to the experimental or the control condition (EC and CC). The EC receives the Alerta Alcohol intervention, which consists of four sessions at school. The adolescents are provided highly specific feedback regarding their knowledge, risk perception, self-esteem, attitude, social influence, and self-efficacy. In addition, two booster sessions are given at home to reinforce the contents of the three scenarios. The CC just completes the baseline and the evaluation questionnaires and then they are allowed to receive the intervention as well (as a waiting list control condition).

Eligibility

Sex/Gender
ALL
Age
16 Years to 18 Years
Healthy volunteers
Yes

Inclusion criteria

* Students aged 16 to 18 years. * Enrolled in Andalusian public high schools. * Schools belonging to provincial capitals. * Access to the Internet at the school and an equipped ICT room.

Exclusion criteria

* Language barriers. * Previous participation in prevention programs for binge drinking.

Design outcomes

Primary

MeasureTime frameDescription
Reducing binge-drinking4 months after the baselineReducing binge-drinking (4/5 glasses or alcohol in one ocassion for a girl/boy) within 30 days prior to evaluation.

Secondary

MeasureTime frameDescription
Reducing weekly alcohol drinking4 months after the baselineReducing alcohol drinking within the 7 days prior to evaluation

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 7, 2026