New study tests High-Tech car sensors to spot stoned drivers
NCT ID NCT07401628
First seen Jun 25, 2026 · Last updated Jul 21, 2026 · Updated 4 times
Summary
This study aims to see if sensors inside a car can tell when a driver is impaired by cannabis. Forty-five healthy adults who regularly use cannabis will drive on a closed track after smoking a controlled dose of THC. Their driving behavior, eye movements, and other data will be compared to sober driving to train a computer model to detect impairment.
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)
- What this could lead to
- If successful, this could lead to a real-time in-vehicle system that alerts drivers when they are too impaired to drive safely after cannabis use.
- What could go wrong
- This is a small, early-stage study with only 45 participants on a closed track, so results may not apply to real-world driving or all cannabis users.
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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
Locations
-
Institute for Forensic Medicine, Forensic Chemistry and Toxicology University of Bern
Bern, 3008, Switzerland
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