New study tests how pot and booze mix to impair drivers
NCT ID NCT06293040
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study looks at how using vaporized cannabis and drinking alcohol together affects thinking, coordination, and driving skills. About 90 healthy adults will take part in sessions where they receive different doses of cannabis (THC) and alcohol or placebos. Researchers will measure impairment using cognitive tests, field sobriety tests, and a driving simulator to better understand the risks of combining these substances.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Cannabis (THC) and Alcohol (Ethanol)
What this could lead to
If successful, this study could provide clearer data on how cannabis and alcohol together impair driving and cognitive skills, potentially informing safety laws and public health advice.
What could go wrong
This is an early-phase lab study with only 90 participants, so results may not apply to real-world use or to everyone. It measures impairment in a controlled setting, not actual crash risk.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Johns Hopkins Behavioral Pharmacology Research Unit
RECRUITINGBaltimore, Maryland, 21224, United States
Contact Email: •••••@•••••