Could a diabetes drug help people stop using cannabis?
NCT ID NCT07468552
First seen Jun 27, 2026 · Last updated Sep 21, 2026 · Updated 1 time
Summary
This study tests a medicine called tirzepatide to see if it can help people with moderate to severe cannabis use disorder use less cannabis or stop altogether. One hundred adults aged 18 to 70 will receive either the drug or a placebo, and researchers will track their cannabis use and any side effects. The goal is to find a safe dose that helps reduce cravings and use.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 100 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Nov 2026
An estimate. Start dates often move.
- Expected to finish
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Nov 2028
An estimate. End dates often move.
- Lead sponsor
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A government research agency
The lead sponsor is the US National Institutes of Health.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 70 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Between 18 and 70 years of age * Meets DSM-5 criteria for moderate or severe CUD * Interested in treatment for cannabis use disorder * Able to understand the study procedures and written informed consent in English * Willing to comply with all study procedures and medication instructions * If female, is not pregnant, and agrees to use acceptable birth control methods Exclusion Criteria: * Body Mass Index (BMI) ≤ 23 kg/m² * Presence of a medical or psychiatric disorder that contraindicates participation in the study * Substance use disorder other than tobacco or mild alcohol-use disorder * Known allergy or hypersensitivity to Tirzepatide, any GLP-1 or GIP receptor agonist, or any of the excipients in the product * Current or recent (past 30 days) use of GLP-1 receptor agonists or other weight-loss drug * Current or recent (past 6 months) enrollment in substance use disorder treatment * Current or planned pregnancy and breastfeeding * Living or medical situation that would interfere with adherence to the study protocol
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
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Other studies related to the condition(s) this trial covers.
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