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TRIS: Contingency Management App for Alcohol Use Disorder

27 de julho de 2026 atualizado por: University of Sao Paulo General Hospital

Remote Treatment With Incentives for Sobriety (TRIS): A Randomized Controlled Trial of a Contingency Management App for Alcohol Use Disorder

Alcohol Use Disorder (AUD) is a major public health concern associated with substantial morbidity, mortality, and impaired social and occupational functioning. Contingency Management (CM) is an evidence-based behavioral intervention that provides incentives contingent on abstinence and has demonstrated effectiveness in the treatment of substance use disorders. This study will evaluate the efficacy of Tratamento Remoto com Incentivos à Sobriedade (TRIS), a Brazilian mobile health application that integrates a smartphone app with a Bluetooth-enabled breathalyzer (BACtrack) to deliver remote CM for AUD. Participants will be randomized to receive either standard outpatient treatment plus TRIS-based CM or standard outpatient treatment with remote alcohol monitoring only. The primary objective is to determine whether TRIS-based CM increases biochemically verified alcohol abstinence compared with standard outpatient treatment alone.

Visão geral do estudo

Status

Recrutamento

Condições

Intervenção / Tratamento

Descrição detalhada

A total of 130 adults with Alcohol Use Disorder (AUD) from two public outpatient clinics in São Paulo, Brazil, will be randomized (1:1) to the experimental or control group. The experimental group will receive standard outpatient treatment plus 12 weeks of remote Contingency Management (CM) delivered through the TRIS mobile application. Participants will submit three daily breath alcohol concentration (BrAC) samples at 1:00 p.m., 5:00 p.m., and 9:00 p.m. using a BACtrack Bluetooth breathalyzer connected to the app. Financial incentives will be provided when all three daily samples are submitted on time and are alcohol-negative (BrAC = 0.00). Incentives begin at R$5.00 per day and increase by R$2.00 for each consecutive day of verified abstinence, up to a maximum of R$15.00 per day. Missed or alcohol-positive samples reset the incentive value to R$5.00 on the next eligible day. Incentives will be redeemed via PIX transfer. The control group will receive standard outpatient treatment and will also use the TRIS application and BACtrack breathalyzer to submit three daily BrAC samples but will not receive contingency management incentives. The primary outcome is the number of biochemically verified days of alcohol abstinence during the 12-week intervention. Secondary outcomes include days without heavy alcohol use, treatment adherence, usability and acceptability of the TRIS application, alcohol withdrawal severity, obsessive-compulsive drinking symptoms, alcohol craving, alcohol use severity, quality of life, psychiatric symptoms, disability, and healthcare service utilization. Assessments will be conducted at baseline, weekly during the 12-week intervention, and at follow-up visits scheduled at Weeks 16, 20, and 24.

Tipo de estudo

Intervencional

Inscrição (Estimado)

130

Estágio

  • Não aplicável

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

Estude backup de contato

Locais de estudo

  • Brasil
    • São Paulo
      • São Paulo, São Paulo, Brasil, 05021-001
        • Recrutamento
        • IPER Research Center
        • Contato:
        • Contato:
        • Investigador principal:
          • Paulo Menezes, PhD
        • Investigador principal:
          • André Miguel, PhD
        • Subinvestigador:
          • Vinicius Soares, PhD
        • Subinvestigador:
          • Thais Rocha, MSc

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

  • Adulto
  • Adulto mais velho

Aceita Voluntários Saudáveis

Não

Descrição

Inclusion Criteria:

  • Able to read and speak Portuguese.
  • Provide signed informed consent.
  • Age 18 to 70 years.
  • Alcohol consumption within the past month.
  • Current diagnosis of Alcohol Use Disorder (AUD).
  • Seeking treatment for AUD at AME Vila Maria or Instituto Perdizes.
  • Breath alcohol concentration (BrAC) of 0.00 at the time of consent.
  • Own and be able to operate a smartphone with an active mobile service plan.
  • Smartphone compatible with the Bluetooth frequency required for the BACtrack breathalyzer.

Exclusion Criteria:

  • Crack cocaine use within the past 90 days.
  • Any seizure episode within the past 12 months.
  • Diagnosis of a psychotic disorder (DSM-5).
  • Suicide attempt within the past two years.
  • Any medical or psychiatric condition that may compromise safe participation, as determined by the study medical director.

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição Paralela
  • Mascaramento: Nenhum (rótulo aberto)

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Contingency Management (CM) + Treatment as Usual (TAU)
Participants receive standard outpatient treatment plus 12 weeks of remote contingency management delivered through the TRIS mobile application. Participants submit three breath alcohol concentration (BrAC) samples daily using a Bluetooth-enabled breathalyzer and receive escalating monetary incentives contingent on alcohol-negative breath samples.
Comportamental: Remote Contingency Management (CM)
Remote contingency management delivered through the TRIS mobile application. Participants submit three daily breath alcohol concentration (BrAC) samples using a Bluetooth-enabled BACtrack breathalyzer. Monetary incentives ranging from R$5.00 to R$15.00 per day are provided contingent on verified alcohol abstinence.
Comparador Ativo: Treatment as Usual (TAU)
Participants receive standard outpatient treatment for Alcohol Use Disorder and use the TRIS mobile application to submit three daily breath alcohol concentration (BrAC) samples using a Bluetooth-enabled breathalyzer. No monetary incentives are provided for alcohol-negative breath samples.
Comportamental: Treatment as Usual (TAU)
Standard outpatient treatment for Alcohol Use Disorder provided at the participating outpatient clinics. Participants also use the TRIS mobile application and a Bluetooth-enabled BACtrack breathalyzer for remote alcohol monitoring but do not receive contingency management incentives.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Days of Alcohol Abstinence
Prazo: Up to 12 weeks
Number of days with verified abstinence based on three daily BrAC samples submitted via the BACtrack remote breathalyzer over the 12-week intervention period.
Up to 12 weeks

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Days without Heavy Alcohol Consumption
Prazo: Up to 12 weeks
Description: Number of days in which all three daily BrAC samples are below 0.06 during the 12-week intervention period.
Up to 12 weeks
App Usability
Prazo: Week 12 (end of intervention)
Usability and acceptability of the TRIS mobile application assessed at the end of the intervention using a study-specific questionnaire.
Week 12 (end of intervention)
Clinical Institute Withdrawal Assessment for Alcohol, Revised (CIWA-Ar)
Prazo: Baseline (Week 0), weekly during Weeks 1-12, and follow-up at Weeks 16, 20, and 24.
The Clinical Institute Withdrawal Assessment for Alcohol, Revised (CIWA-Ar) is a 10-item clinician-administered scale assessing alcohol withdrawal severity. Scores range from 0 to 67, with higher scores indicating more severe alcohol withdrawal symptoms.
Baseline (Week 0), weekly during Weeks 1-12, and follow-up at Weeks 16, 20, and 24.
Obsessive-Compulsive Drinking Scale (OCDS)
Prazo: Baseline (Week 0), weekly during Weeks 1-12, and follow-up at Weeks 16, 20, and 24.
The Obsessive-Compulsive Drinking Scale (OCDS) is a 14-item self-report measure assessing obsessive thoughts and compulsive behaviors related to alcohol use. Scores range from 0 to 56, with higher scores indicating greater alcohol craving and obsessive-compulsive drinking symptoms.
Baseline (Week 0), weekly during Weeks 1-12, and follow-up at Weeks 16, 20, and 24.
Treatment Adherence
Prazo: Up to 12 weeks
Number of days the participant remains engaged in the 12-week intervention, based on attendance and study procedures.
Up to 12 weeks

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

University of Sao Paulo General Hospital

Colaboradores

University of Sao Paulo
Medical school of the University of São Paulo (FMUSP)

Investigadores

  • Investigador principal: André Miguel, PhD, Washington State University

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

19 de fevereiro de 2026

Conclusão Primária (Estimado)

1 de agosto de 2027

Conclusão do estudo (Estimado)

1 de dezembro de 2027

Datas de inscrição no estudo

Enviado pela primeira vez

15 de dezembro de 2025

Enviado pela primeira vez que atendeu aos critérios de CQ

27 de julho de 2026

Primeira postagem (Real)

30 de julho de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

30 de julho de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

27 de julho de 2026

Última verificação

1 de dezembro de 2025

Mais Informações

Termos relacionados a este estudo

Palavras-chave

Termos MeSH relevantes adicionais

Outros números de identificação do estudo

  • 78651424.2.0000.0068

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

INDECISO

Descrição do plano IPD

The study team has not yet made a final decision regarding the sharing of de-identified individual participant data (IPD). A data sharing plan will be established after study completion in accordance with institutional policies, participant consent, and applicable ethical and regulatory requirements.

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

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