Participate in Research


Knowledge is power, and we're working hard to learn as much as possible about cannabis therapies.

Here are our active research projects in which you can participate.

  • Observational Research Registry (ORR)

    What's the purpose?
    To collect and analyze a wide variety of information including different products participants use, how it affects their quality of life, and how their symptoms may have changed due to cannabis therapy.

    What does participation involve?
    Participants answer periodic online surveys. Twenty randomly-selected active participants receive a $50 prize every month. That's $1000 we give away every month!

    Who can participate?
    Anyone! Those who use and do not use cannabis therapies are encouraged to participate.

    How do I join?
    To join the study, sign into the Client Portal, then go to the Research Portal to receive your Registry ID and a link to your first survey.

  • Metabolite Study

    What's the purpose?
    Learn about how CBD use affects metabolite levels.

    What's participation involve?
    Participation requires one 45 minute in-person visit to Boulder, Denver, or Colorado Springs to answer some questions and provide a biological sample. Following participation, you will receive $25 compensation.

    Who can participate?
    Those who are 18 years of age or older and consistently use a hemp oil (CBD) product.

    How do I join?
    If you’re interested, please call (719)629-7563 to speak with a project staff member.

  • Current NFL Player Study

    What's the purpose?

    1. Quantify medication/substance use among players, with special emphasis on opioid and cannabinoid use, during an NFL season;
    2. Track injuries, timetable of recovery, type and severity of associated symptoms, and course of treatments utilized by players during the season;
    3. Evaluate how general health (e.g. mood, sleep, stress) relates to cannabinoid and opioid use.

    What's participation involve?
    We will ask you to complete an online survey once during pre-season (about 90 minutes), once per week during the season (10-15 minutes each), and once at the end of the season (about 90 minutes). Compensation is provided for completing each survey.

    Who can participate?
    Anyone currently on an NFL team's active roster is invited to participate in the study. It is not important if you use prescription opioids, cannabinoids, or choose alternative treatments for pain/injuries, all active players are eligible.

    How do I join?
    To join the study, please call Dr. Ryan Vandrey, Principal Investigator, at 410-550-4036 or e-mail him at This email address is being protected from spambots. You need JavaScript enabled to view it..

    Read the full invitation here.

  • Former Professional Athlete Study

    What's the purpose?
    Learn about former professionals of contact sports, medication/drug use, and health.

    What's participation involve?
    Participants complete monthly surveys for up to 6 months. After the initial survey, participants receive a $25 gift card. Subsequent surveys earn participants coupons for 100mL of Everyday Advanced Hemp Oil by Charlotte’s Web™, a $275 value.

    Who can participate?
    To qualify, you must be a former professional athlete from one of the following sports:

    • Football
    • Downhill snow sport (e.g., skiing, snowboarding, etc.)
    • Rodeo
    • Hockey
    • Soccer
    • MMA/Boxing

    All eligible athletes are invited to participate independent of past, present, or future intentions of using hemp oil.

    How do I join?
    Visit for more information and to begin your first survey.

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