Can training pot shop staff prevent drunk driving? oregon study aims to find out.
NCT ID NCT06235632
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether training store staff and increasing enforcement can reduce marijuana sales to obviously-intoxicated customers. Researchers will send actors pretending to be drunk to buy marijuana and see if stores refuse the sale. The goal is to prevent impaired driving and other harms from mixing marijuana and alcohol.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 229 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2024
- Expected to finish
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Aug 2027
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
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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21 years and older
- 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.
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: * Recreational Marijuana Stores: * Located in the greater Portland, Oregon metropolitan area or Salem, Oregon metro area * Hold an active recreational marijuana license from the Oregon Liquor Control Commission (OLCC) as of July 1, 2022 * A retail store that sells recreational marijuana products * Store is open for business * Have a smart phone, tablet computer, or personal computer with Internet access * Owner or manager consent for store to participate * Store personnel: * Own or employed at a state-licensed recreational marijuana store in greater Portland, Oregon or Salem, Oregon metro area * Sell recreational marijuana products in a retail store * Aged 21 or older (by state law) * Able to read English * Have a smart phone, tablet computer, or personal computer with Internet access * Consent to participate * Alcohol Establishments * Located in the greater Portland, Oregon or Salem metropolitan area * Hold an active liquor license from the Oregon Liquor Control Commission (OLCC) as of July 1, 2022 * An establishment that sells alcohol for on-site or off-site consumption * Store is open for business Exclusion Criteria: * Recreational Marijuana Stores: * Have an inactive, suspended, or revoked recreational marijuana license * Licensed to sell only medical marijuana * Store Personnel: • Cannot read English * Alcohol Establishments • Have an inactive, suspended, or revoked liquor license
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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
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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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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Klein Buendel, Inc.
Golden, Colorado, 80401, United States
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