What is the National Cannabis Study? - Johannes Thrul & Ryan Vandrey @medicinal.genomics

Uploaded December 2025 | Updated September 2026, 2 weeks ago

Dr. Ryan Vandrey is a professor of Psychiatry and Behavioral Sciences at John’s Hopkins. Dr. Johannes Thrul is an Associate Professor at John’s Hopkins.

They both work for the Cannabis Health & Research Initiative, which is a collaboration between two organizations with years of experience in medicinal cannabis research: Johns Hopkins University and Realm of Caring. Simply put, CHRI is a platform of data collection and dissemination focused on the health outcomes of medicinal cannabis at the patient level, and they have created a number of valuable resources to help cannabis medicine researchers, including:
- A data repository that contains de-identified data collected through CHRI
- Research Library that contains more than 3000 published scientific articles related to the health effects of cannabis
- A set of validated questionnares that clinicians can use when speaking to patients about cannabis
- and more

The CHRI is also currently recruiting participants for their National Cannabis Study, which is a collection of firsthand experiences with medicinal cannabis among individuals with various health conditions. Specifically, they are looking for participants who plan to use cannabis but have not yet started cannabis use. So if that’s you or someone you know, we highly suggest you consider participating in the study because the research has the potential to impact best practices in healthcare and the cannabis industry.

During our conversation, Ryan and Johannes shared more details about the CHRI and the National Cannabis Study, and I think you will agree that their mission aligns perfectly with the CannMed Community.

Thanks to This Episode's Sponsor: Realm of Caring

Founded in 2013, Realm of Caring (RoC) serves anyone in need of more information about cannabinoid therapies. Through revolutionary CBD and Cannabis research, innovative education, and life-changing grants, RoC seeks to facilitate and encourage the mainstream acceptance of transformative, plant powered therapies to benefit individuals and families and serve healthcare providers as well as the hemp and cannabis industries.

Learn more at RealmofCaring.org

Additional Resources
- Cannabis Health Research Initiative website - cannabisandhealth.org

What is the National Cannabis Study? - Johannes Thrul & Ryan Vandrey

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