Community prevention study: Communities That Care Brazil

Cultural adaptation and implementation of the “Communities That Care” (CTC) prevention system in Brazil

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

REBEC

Registry ID

RBR-9d7qv65

Enrollment

4800

Registered

2026-07-17

Start date

2025-03-01

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

Substance-Related Disorders

Interventions

This is a multicenter, inter-regional, cluster quasi-experimental trial with a non-equivalent control group. Communities constitute the primary unit of allocation, and data are organized hierarchicall

Eligibility

Age

12 Years to 18 Years

Inclusion criteria

Inclusion criteria: Stakeholders (community leaders, health, education, social assistance and security professionals, certified technical assistants and research teams): minimum age of 18 years; both sexes; active institutional affiliation. Implementing agents (school administrators, teachers and technical staff of NGOs and CRAS): direct involvement in the supervision or execution of evidence-based preventive programs. Parents and legal guardians: recruited by convenience sampling; affiliation with young study participants. Youth cohort: age over 12 years; both sexes; regular enrollment in a public school; parental consent and student agreement

Exclusion criteria

Exclusion criteria: Stakeholders and implementing agents: inability to participate in mandatory training cycles or workshops; termination of professional ties with the participating community or institution before the initial assessment. Youth cohort: absence of informed consent signed by parents or student agreement; transfer to a non-participating school during the data collection period

Design outcomes

Primary

Measure	Time frame
To evaluate the effectiveness of the "Communities that Care" Prevention System in cultural adaptation to Brazil, through an inter-regional study, for improving community preparedness and prevention of alcohol and other drug use and mental health conditions among participating youth.	—

Secondary

Measure	Time frame
To verify the effectiveness in preventing the target outcomes in the community: alcohol and other drug abuse, violence, and mental health conditions among local youth, through the quality implementation of evidence-based programs.;To verify whether evidence-based programs work best when used within a preventive system based on the participation of community leaders, through an effectiveness study of preventive programs.;To evaluate the quality of the implementation of the Communities that Care program, verifying its fidelity, acceptability, and viability for the Brazilian context.;To develop the psychometric validation for Brazil of the instruments used to assess community preparedness and risk and protective factors for drug use and violence within the "Communities That Care" system.	—

Measure

Time frame

To verify the effectiveness in preventing the target outcomes in the community: alcohol and other drug abuse, violence, and mental health conditions among local youth, through the quality implementation of evidence-based programs.;To verify whether evidence-based programs work best when used within a preventive system based on the participation of community leaders, through an effectiveness study of preventive programs.;To evaluate the quality of the implementation of the Communities that Care program, verifying its fidelity, acceptability, and viability for the Brazilian context.;To develop the psychometric validation for Brazil of the instruments used to assess community preparedness and risk and protective factors for drug use and violence within the "Communities That Care" system.

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Countries

Contacts

Public ContactDaniela Schneider

Universidade Federal de Santa Catarina

danischneiderpsi@gmail.com+55-48-37219283

Outcome results

None listed

Source: REBEC (via WHO ICTRP) · Data processed: Aug 10, 2026