Evaluation of a Digital School-Based Intervention for the Primary Prevention of Eating Disorders in Pre-Adolescents (PRETA Program)
PRETA
Effectiveness and Cost-effectiveness of an Online School-based Program for Reducing Risk Factors in Pre-adolescents (PRETA): Protocol for a Cluster Randomized Controlled Trial
1 other identifier
interventional
1,068
1 country
1
Brief Summary
Background: Eating Disorders (ED) are mental health conditions, characterized by pathological behaviors toward food intake or a persistent obsession with weight control. EDs have a high prevalence among pre-adolescents in developed countries and pose a significant economic burden. Preventive interventions targeting at-risk populations for ED have proven effective. The use of Information and Communication Technologies (ICTs) facilitates access to larger population groups while also reducing costs. Objectives:
- Develop and validate a universally applied intervention (PRETA), mediated by ICTs, to reduce eating-disorder risk and modifiable risk factors, through cultural adaptation and adjustment of the POtsdam Prevention at Schools (POPS) Program to preadolescents.
- Assess the efficacy of the PRETA Program through a randomized controlled trial (RCT).
- Evaluate the efficiency of the PRETA Program from a social perspective. Methodology The PRETA Program uses 9 online sessions with interactive activities for pre- adolescents, plus education for their families and teachers. Its content includes addressing key factors in the development of ED, such as eating habits, beauty standards, and media literacy, as well as activities aimed at strengthening psychological dimensions (self-esteem, emotional regulation, problem-solving, psychological flexibility, and resilience) and social skills, including communication styles and distinguishing between jokes and bullying. The study involves schools being randomly assigned to either the PRETA Program or regular health activities. The effect of the intervention will be evaluated 3 months after its start.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Mar 2025
Shorter than P25 for not_applicable
1 active site
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
January 20, 2025
CompletedFirst Posted
Study publicly available on registry
January 27, 2025
CompletedStudy Start
First participant enrolled
March 10, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2025
CompletedSeptember 19, 2025
September 1, 2025
10 months
January 20, 2025
September 15, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Children's Eating Attitudes Test (ChEAT-26) Questionnaire score
The ChEAT is an adaptation of the EAT-26 for children is a 26 items scored on a 6-option Likert scale. It is a validated, self-administered questionnaire in Spanish for children aged 8 and older, with a reading level of 5th grade. The questionnaire focuses on identifying issues related to a persistent concern with food, eating patterns, and abnormal attitudes for this age group. The total score is obtained by summing all items, resulting in a range from 0 to 78 points. A total score above 20 points may indicate a possible presence of ED
Before and inmediately after the intervention
Secondary Outcomes (4)
Evaluation of body image measured with the Adapted Contour Drawing Rating Scale (A-CDRS) visual analog scale.
Before and inmediately after the intervention
Body dissatisfaction, bulimia, and drive for thinness measured with the Spanish version of the Eating Disorder Inventory-2 (EDI-2).
Before and inmediately after the intervention
Internalization of the current aesthetic model and media pressure using the Spanish version of the Sociocultural Attitudes Towards Appearance Questionnaire-4
Before and inmediately after the intervention
Evaluation of global self-esteem measured with the Rosenberg Self-Esteem Scale
Before and inmediately after treatment
Study Arms (2)
Intervention Group
EXPERIMENTALParticipants in the intervention group will complete a baseline assessment and receive project information. Then, students from the schools randomly allocated to the intervention group will participate in the PRETA program, specifically designed for the primary prevention of Eating Disorders (ED) in a school setting. These sessions will involve educational activities and participatory dynamics to foster a healthy relationship with body image and eating. At the end of the program, participants will complete questionnaires to assess the outcomes. Additionally, parents and teachers in the intervention group will receive targeted training and resources.
Control Group
NO INTERVENTIONThe students randomly allocated to control condition will not receive any type of intervention. They will continue with their regular school activities but will complete the questionnaires and surveys to contrast the effects of the intervention.
Interventions
The intervention adopts a multicomponent approach, addressing three agents in the prevention and management of eating disorders: parents, teachers and students. 1. Intervention with parents: Parents will receive specific materials, including an informative guide on early identification of warning signs, promoting healthy lifestyle habits, and fostering effective communication with their children. 2. Intervention with teachers: A two-hour in-person session will train teachers on platform use and provide tools for eating disorder prevention through role-playing techniques. Online resources will complement the training, while researchers ensure adherence via weekly follow-ups and parent reminders. 3. e-Preta program: The intervention for minors is delivered through an online platform, structured into 9 sessions of 45 minutes each, over 3 months. Weekly, platform-guided activities are proposed for classroom use with minimal teacher interaction, along with voluntary at-home activities.
Eligibility Criteria
You may qualify if:
- Enrolled in the fifth or sixth year of primary education.
- Informed consent provided by the student's legal guardians and responsible teacher to participate.
You may not qualify if:
- Significant comprehension difficulties that limit adequate participation in the program and questionnaires.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Servicio de Evaluación y Planificación del Servicio Canario de Salud
Santa Cruz de Tenerife, Santa Cruz de Tenerife, 38109, Spain
Related Publications (1)
Ramallo-Farina Y, Del Pino-Sedeno T, Pinto Robayna B, Capafons-Sosa JI, Cuesta-Rubio M, Garcia-Bello MA, Torres-Castano A, Vallejo Torres L, Benitez Brito N, Martin Corral J, Hernandez Rodriguez AI, Diaz Melian CD, Paz Lopez M, Gonzalez-Gonzalez CS. Effectiveness and cost-effectiveness of an online school-based programme to reduce eating disorder risk factors in preadolescents (PRETA): protocol for a cluster-randomised controlled trial. BMJ Open. 2025 Oct 14;15(10):e104014. doi: 10.1136/bmjopen-2025-104014.
PMID: 41087111DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Yolanda Ramallo-Fariña, PhD in Biomedical Sciences
Servicio de Evaluación del Servicio Canario de la Salud
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Masking Details
- Data analysis
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Coordinator of the Research Methodology and Data Analysis Group
Study Record Dates
First Submitted
January 20, 2025
First Posted
January 27, 2025
Study Start
March 10, 2025
Primary Completion
December 31, 2025
Study Completion
December 31, 2025
Last Updated
September 19, 2025
Record last verified: 2025-09
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, ANALYTIC CODE
- Time Frame
- All IPD, except for data related to outcome measures obtained at the post-intervention stage, will be available for sharing prior to the study's completion. The complete IPD will be available for sharing six months after the study's conclusion.
- Access Criteria
- As an access criterion for Individual Participant Data (IPD), it is required that no information be requested that could compromise the anonymity of participants. This ensures adherence to ethical research standards and the protection of personal data, safeguarding the confidentiality and privacy of all individuals involved.
Data will be available upon reasonable request. The data to be shared will include all IPD that underlie results in a publication, as well as the statistical analysis plan, informed consent form and the analytic code. All sensitive data will be anonymized to ensure the privacy and confidentiality of the participants.