Can cannabis ease opioid withdrawal? small study aims to find out
NCT ID NCT05729932
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-stage study is testing whether inhaled cannabis can reduce withdrawal symptoms in people with opioid use disorder who are not currently seeking treatment. Researchers will give participants either cannabis or a placebo and measure how they feel, including withdrawal severity and drug liking. The study is very small with only 15 people, so it is a first step to see if this approach is safe and worth studying further.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- inhaled vaporized cannabis
- What this could lead to
- If it works, this could point toward a way to use cannabis to help manage opioid withdrawal symptoms.
- What could go wrong
- This is a very early, small Phase 1 trial with only 15 people. It is testing safety and basic effects, not yet a proven treatment. Results may not apply to everyone.
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 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 15 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2024
- Expected to finish
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Jun 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
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 55 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Current opioid use disorder Exclusion Criteria: * Current medical conditions that require medical management
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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 places running it
1 site. The list below names each one and where it is.
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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.
Contacts and locations
Locations
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Center on Drug and Alcohol Research
RECRUITINGLexington, Kentucky, 40508, United States
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Other studies related to the condition(s) this trial covers.
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- A safety net after jail: can checkups keep opioid treatment on track?
- Can AI and peer support close the opioid treatment gap?