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Tirzepatide in the Treatment of Cannabis Use Disorder

29 de junho de 2026 atualizado por: M. Van Ameringen, McMaster University

A 12-Week Phase 3 Clinical Trial to Evaluate the Safety, Tolerability and Efficacy of Tirzepatide-Assisted-Psychotherapy in Adults With Cannabis Use Disorder: A Proof-of-Concept Study

Cannabis is the most commonly used psychoactive substance in Canada. A sub-group of cannabis users develop Cannabis Use Disorder (CUD). CUD is a pattern of cannabis use that results in impairment in functioning, symptoms of tolerance, withdrawal, and distress. Several pharmacological and psychosocial interventions have been evaluated for their efficacy in treating CUD, however they lack high success rates. GLP-1RA's have shown promising results in reducing food and alcohol cravings and intake. Tirzepatide acts as both a GLP-1RA and a glucose-dependent insulinotropic polypeptide receptor agonist. Tirzepatide has been reported to reduce alcohol consumption, and therefore may have promising effects as a treatment for CUD. This study aims to evaluate the feasibility and tolerability of weekly injections of Tirzepatide combined with Motivational Enhancement Therapy in adults with CUD. This trial will be the first to examine the potential therapeutic effects of Tirzepatide in CUD.

Visão geral do estudo

Status

Ainda não está recrutando

Condições

Intervenção / Tratamento

Tipo de estudo

Intervencional

Inscrição (Estimado)

15

Estágio

  • Fase 3

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

Locais de estudo

  • Canadá
    • Ontario
      • Hamilton, Ontario, Canadá, L8S 1B8
        • MacAnxiety Research Centre
        • Contato:

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:

  • Adults aged 18 and above
  • DSM-5 Cannabis Use Disorder diagnosis of at least moderate severity (4+ DSM-5 symptoms)
  • 4 or more days of cannabis use per week
  • Treatment seeking
  • A Body Mass Index (BMI) ≥ 22

Exclusion Criteria:

  • Meet DSM-5 criteria for Cluster A or B personality disorders and/or unstable current bipolar disorder, schizophrenia, or psychotic disorder
  • Comorbid severe DSM-5 Major Depressive Disorder
  • Present a serious suicide risk or who are likely to require psychiatric hospitalization during the course of the study, as determined by the study physician and Columbia Suicide Severity Rating Scale
  • Any other mental health condition deemed incompatible by the study team
  • Meet DSM-5 criteria for alcohol or substance use disorder for any substance other than cannabis or tobacco in the past 6 months
  • Positive urine drug screen for any substance except cannabis
  • Concurrent addiction-focused psychotherapy in the past 6 months
  • Unstable management of an existing mental health condition or anticipation of a change to the treatment over the next 3 months
  • A personal or family history of medullary thyroid cancer or Multiple Endocrine Neoplasia syndrome type 2
  • Current unstable medical condition
  • A lifetime diagnosis of Diabetes
  • Females who are pregnant/nursing, or individuals in reproductive age who do not consent to using birth control during the study
  • Concomitant treatment with: other GLP-1 agonists, Contrave, bupropion, naltrexone, acamprosate within the past year. No lifetime treatment with tirzepatide.
  • Significant literacy, visual, or hearing problems
  • Co-enrollment in a clinical drug trial

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: N / D
  • Modelo Intervencional: Atribuição de grupo único
  • Mascaramento: Nenhum (rótulo aberto)

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Single Arm
This is an open-label single arm intervention. All participants will be offered both Tirzepatide and psychotherapy over the 12-week treatment period.
Medicamento: Tirzepatide
Treatment will occur over a 12-week period, with once-weekly injections of escalating doses every 3 weeks from 2.5mg to 10mg. Tirzepatide will be used in conjunction with Motivational Enhancement Therapy (MET).

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Tolerability of Tirzepatide-Assisted-Psychotherapy for Cannabis Use Disorder.
Prazo: From baseline to 12-week endpoint.

Tolerability will be measured by the percent of participants who discontinue the trial.

Tolerability will also be measured by the percent of participants who reach the target dose.
From baseline to 12-week endpoint.
Feasibility of Tirzepatide-Assisted-Psychotherapy for Cannabis Use Disorder.
Prazo: From baseline to 12-week endpoint.
Feasibility will be evaluated based on the number of people who contact the study team, percent of people that contact who are eligible and percent of eligible participants who enroll.
From baseline to 12-week endpoint.

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Frequency and amount of cannabis use
Prazo: From baseline to 12-week endpoint.
The Enhanced Cannabis Timeline Follow Back (EC-TLFB) obtains information about frequency of cannabis use, amount used, types of cannabis products, and methods of administration.
From baseline to 12-week endpoint.
Severity of Cannabis Use Disorder symptoms
Prazo: From baseline to 12-week endpoint
The Self-Reported Symptoms of Cannabis Use Disorder (SRSCUD) is a 13-item self-report form that allows individuals to rate the severity of their Cannabis Use Disorder on a scale from 1 to 4. Total scores range from 0 to 39, with a higher score indicating greater symptom severity.
From baseline to 12-week endpoint
Cannabis cravings
Prazo: From baseline to 12-week endpoint
The Marijuana Craving Questionnaire - Short Form (MCQ-SF) is a self-report 12-item questionnaire used to assess individual's cannabis craving experiences.
From baseline to 12-week endpoint
Cannabis withdrawal symptoms
Prazo: From baseline to 12-week endpoint
The Marijuana Withdrawal Checklist (MWC) is a self-report 15-item questionnaire used to assess symptoms of cannabis withdrawal. Participants rate items on a Likert scale from 0 (not at all) to 3 (severe) based on their most recent period of cannabis abstinence. Scores range from 0 to 45, with higher scores indicating greater withdrawal symptom severity.
From baseline to 12-week endpoint

Outras medidas de resultado

Medida de resultado
Descrição da medida
Prazo
Change from baseline on Attention Deficit Hyperactivity Disorder symptom severity
Prazo: From baseline to 12-week endpoint
The Barkley's Adult ADHD Rating Scale - I (BAARS-IV) is a 21 item self-report questionnaire that assesses ADHD symptom severity.
From baseline to 12-week endpoint
Change from baseline in OCD symptoms
Prazo: From baseline to 12-week endpoint.
The Obsessive Compulsive Inventory - Revised (OCI-R) is an 18-item self-report questionnaire that assesses various obsessions.
From baseline to 12-week endpoint.
Change from baseline on the severity of anxiety symptoms
Prazo: From baseline to 12-week endpoint
The Generalized Anxiety Disorder-7 (GAD-7) is a self-report 7-item questionnaire that measures anxiety symptom severity. Items are rated on a Likert scale from 0 (not at all) to 3 (nearly every day). Total scores range from 0 to 21, with higher scores indicating greater symptom severity.
From baseline to 12-week endpoint
Change from baseline in depression symptoms
Prazo: From baseline to 12-week endpoint.
The Patient Health Questionnaire-9 (PHQ-9) is a self-report measure with 9-items used to assess the presence of depression symptoms in the past 2 weeks. Items are scored on a Likert scale from 0 (not at all) to 3 (nearly every day). Total scores range from 0 to 27, with higher scores indicating greater depression severity.
From baseline to 12-week endpoint.
Change from baseline in functional impairment
Prazo: From baseline to 12-week endpoint.
The Sheehan Disability Scale (SDS) is a self-report scale of functional impairment. Responses are based on an eleven-point scale from 0 (not at all) to 10 (extremely). Total scores range from 0 to 30, with higher scores indicating greater impairment.
From baseline to 12-week endpoint.
Change in baseline quality of life
Prazo: From baseline to 12-point endpoint.
The World Health Organization Quality of Life assessment (WHOQOL-BREF) is a self-report measure that assesses quality of life across physical health, psychological, social relationships, and environment domains. The WHOQOL-BREF consists of 26 items that are rated on a 5-point Likert scale. Scores are transformed to range from 0 to 100, with higher scores indicating better quality of life.
From baseline to 12-point endpoint.

Colaboradores e Investigadores

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

Patrocinador

McMaster 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 (Estimado)

1 de agosto de 2026

Conclusão Primária (Estimado)

31 de julho de 2028

Conclusão do estudo (Estimado)

31 de julho de 2028

Datas de inscrição no estudo

Enviado pela primeira vez

15 de junho de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

22 de junho de 2026

Primeira postagem (Real)

26 de junho de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

1 de julho de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

29 de junho de 2026

Última verificação

1 de junho de 2026

Mais Informações

Termos relacionados a este estudo

Palavras-chave

Termos MeSH relevantes adicionais

Outros números de identificação do estudo

  • Tirzep_CUD

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

INDECISO

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

produto fabricado e exportado dos EUA

Não

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