Medical Marijuana and Open Road Driving Task

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age50+
SponsorFlorida State University

About this trial

Medical marijuana use among adults 50 and older has more than doubled in the past decade with exponential increases projected in this demographic by 2050, and prescription opioids are one of the most common treatments for pain management in this population. To date, no studies systematically assess driving performance in a rigorous and ecologically valid manner accounting for long-term medical marijuana use and/or the combined effect of prescription opioid use in adults 50 and older who endorse chronic or severe non-malignant pain. Further, studies examining how older adults self-regulate prescription medication use and driving behavior is limited, with none rigorously examining medical marijuana.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Age 50 and older who endorse chronic or severe non-malignant pain

Resident of Florida with an active and valid Florida Drivers License

Can communicate in English

Willing and able to complete study procedures

Disqualifiers

Have active psychosis

Have lost or revoked driving privileges

Score of below the cut 24 (out of 30) on the Montreal Cognitive Assessment (MoCA)

Are a control participant who urine test positive for marijuana use and/or reports any marijuana use in past 10 years

Trial population

Adults in the state of Florida aged 50 and older

Trial design

Design model

Cohort

Time perspective

Cross-sectional

Treatments tested in this trial

Not listed

Trial groups

250 Participants
are grouped into 2 trial groups
Group A: Medical Marijuana Use (MMG)
Group B: No Marijuana Exposure (NMG)

Trial outcomes

Primary outcomes

1

Sum of Maneuvers Score (SMS)

A standardized score sheet with a total of 49 driving maneuvers and eight types of possible driving errors is used by the Certified Driver Rehabilitation Specialist while the participant is driving. The driving errors are lane maintenance errors, speed regulation errors, adjustment-to-stimuli errors, yielding errors, signaling errors, vehicle positioning errors, visual scanning, and gap acceptance errors. For each maneuver, a maximum score of 3 is given if no errors are committed. At the end of the driving course, the sum of the points attained is computed as the sum of maneuvers score (SMS) ranging from 0 to 147, with 147 indicating a perfect driving score (zero errors).

Time frame
One Day

Secondary outcomes

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Florida State University

Lead sponsor

University of Florida

Collaborator

National Institute on Drug Abuse (NIDA)

Collaborator