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Tirzepatide in the Treatment of Cannabis Use Disorder

2026年6月29日 更新者: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.

調査の概要

状態

まだ募集していません

条件

介入・治療

研究の種類

介入

入学 (推定)

15

段階

  • フェーズ 3

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

    • Ontario
      • Hamilton、Ontario、カナダ、L8S 1B8
        • MacAnxiety Research Centre
        • コンタクト:

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 大人
  • 高齢者

健康ボランティアの受け入れ

いいえ

説明

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

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:処理
  • 割り当て:なし
  • 介入モデル:単一グループの割り当て
  • マスキング:なし(オープンラベル)

武器と介入

参加者グループ / アーム
介入・治療
実験的: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.
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).

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Tolerability of Tirzepatide-Assisted-Psychotherapy for Cannabis Use Disorder.
時間枠: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.
時間枠: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.

二次結果の測定

結果測定
メジャーの説明
時間枠
Frequency and amount of cannabis use
時間枠: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
時間枠: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
時間枠: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
時間枠: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

その他の成果指標

結果測定
メジャーの説明
時間枠
Change from baseline on Attention Deficit Hyperactivity Disorder symptom severity
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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
時間枠: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.

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2026年8月1日

一次修了 (推定)

2028年7月31日

研究の完了 (推定)

2028年7月31日

試験登録日

最初に提出

2026年6月15日

QC基準を満たした最初の提出物

2026年6月22日

最初の投稿 (実際)

2026年6月26日

学習記録の更新

投稿された最後の更新 (実際)

2026年7月1日

QC基準を満たした最後の更新が送信されました

2026年6月29日

最終確認日

2026年6月1日

詳しくは

本研究に関する用語

その他の研究ID番号

  • Tirzep_CUD

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

未定

医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

いいえ

米国FDA規制機器製品の研究

いいえ

米国で製造され、米国から輸出された製品。

いいえ

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。