Dose-dependent effects of cannabis edibles on simulated driving performance

About the Study: In this crossover randomized clinical trial of driving performance after exposure to THC edibles, THC dose-dependently impaired simulated driving performance at blood THC concentrations below per se thresholds commonly used for roadside enforcement.

Related: This study has an accompanying commentary.

Corresponding Author: Bernard Le Foll, MD, PhD, 100 Stokes St, Toronto, ON M6J 1H4, Canada (Bernard.LeFoll@camh.ca).

10.1001/jamanetworkopen.2026.31306

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