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Tirzepatide in the Treatment of Cannabis Use Disorder

29 juni 2026 uppdaterad av: 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.

Studieöversikt

Status

Har inte rekryterat ännu

Betingelser

Intervention / Behandling

Studietyp

Interventionell

Inskrivning (Beräknad)

15

Fas

  • Fas 3

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studieorter

  • Kanada
    • Ontario
      • Hamilton, Ontario, Kanada, L8S 1B8
        • MacAnxiety Research Centre
        • Kontakt:

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Beskrivning

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

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: N/A
  • Interventionsmodell: Enskild gruppuppgift
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: 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.
Läkemedel: 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).

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Tolerability of Tirzepatide-Assisted-Psychotherapy for Cannabis Use Disorder.
Tidsram: 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.
Tidsram: 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.

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Frequency and amount of cannabis use
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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

Andra resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change from baseline on Attention Deficit Hyperactivity Disorder symptom severity
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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.

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

McMaster University

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Beräknad)

1 augusti 2026

Primärt slutförande (Beräknad)

31 juli 2028

Avslutad studie (Beräknad)

31 juli 2028

Studieregistreringsdatum

Först inskickad

15 juni 2026

Först inskickad som uppfyllde QC-kriterierna

22 juni 2026

Första postat (Faktisk)

26 juni 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

1 juli 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

29 juni 2026

Senast verifierad

1 juni 2026

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • Tirzep_CUD

Plan för individuella deltagardata (IPD)

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OBESLUTSAM

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Nej

Studerar en amerikansk FDA-reglerad produktprodukt

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produkt tillverkad i och exporterad från U.S.A.

Nej

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