Understanding why people drive after using cannabis

Individual, contextual, and geospatial influences on decisions to drive under the influence of cannabis

NIH-funded research Brown University · NIH-11118939

This project aims to understand why some individuals choose to drive after using cannabis, helping to make our roads safer.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionBrown University NIH-funded
Lab location1 site (Providence, United States)
Project IDNIH-11118939 on NIH RePORTER

What this research studies

We want to learn about the different factors that lead people to drive after using cannabis. This includes looking at personal thoughts, feelings, and how much cannabis is in their system, as well as outside influences like social settings and environmental conditions. We will use smartphones and GPS devices in vehicles to collect daily information about cannabis use and driving habits. This will help us gather unique details about individual behaviors in their everyday lives.

Who could benefit from this research

Good fit: Individuals who use cannabis, whether frequently or less often, and also drive, would be ideal candidates for this kind of research.

Not a fit: Patients who do not use cannabis or do not drive would not directly benefit from participating in this specific research.

Why it matters

Potential benefit: If successful, this work could lead to better ways to prevent driving under the influence of cannabis, making communities safer for everyone.

How similar studies have performed: Preliminary data has shown that the methods for collecting data on cannabis use and driving are feasible.

Where this research is happening

Providence, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.