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School of Medicine
Ryan Gregory Vandrey, Ph.D.
Associate Professor of Psychiatry and Behavioral Sciences
Research Interests: Human behavioral pharmacology of Cannabis (Marijuana); Nicotine/Tobacco
Dr. Vandrey's research focuses primarily on the behavioral pharmacology of cannabis (marijuana) and includes controlled laboratory studies with adult research volunteers, clinical trials, web-based survey research, and natural history studies with patient populations using cannabis/cannabinoids for therapeutic purposes. He has also been engaged in research on nicotine and tobacco regulatory science and treatment. He has published over 60 peer reviewed journal articles and 10 book chapters. Dr. Vandrey aspires to conduct objective research that addresses critical questions related to regulation and policy. His work helped characterize the cannabis withdrawal syndrome, has provided novel data about the comparative pharmacokinetics and corresponding pharmacodynamics of cannabinoids across routes of administration, explored medications that are potential adjuncts to behavior therapy in the treatment of cannabis use disorder, examined the effects of cannabis on sleep, and evaluated both the risks and benefits of medicinal use of cannabis/cannabinoids for various health conditions.
- Associate Professor of Psychiatry and Behavioral Sciences
Centers & Institutes
- B.A., University of Delaware (Delaware) (1998)
- Ph.D., University of Vermont (Vermont) (2005)
Johns Hopkins University, Baltimore, MD, 2007
Research & Publications
Dr. Vandrey's research primarily focuses on the behavioral pharmacology of cannabis, but also includes research on nicotine and tobacco regulatory science. His studies span a number of disciplines and methods, but are all aimed at answering critical questions relevant to public health, policy and regulation of cannabis/cannabinoids and tobacco/nicotine.
Selected PublicationsView all on Pubmed
Vandrey, R, Smith, MT, McCann, UD, Budney, AJ, Curran, EM. (2011). Sleep disturbance and the effects of extended-release zolpidem during cannabis withdrawal. Drug and Alcohol Dependence, 117, 38-44.
Vandrey, R, Raber, JC, Raber, ME, Douglass, B, Miller, C, Bonn-Miller, MO. (2015). Cannabinoid Dose and Label Accuracy In "Edible" Medical Cannabis Products. Journal of the American Medical Association, 313, 2491-2493
Donny, EC, Denlinger, RL, Tidey, JW, Koopmeiners, JS, Benowitz, NL, Vandrey, RG, al'Absi, M, Carmella, SG, Cinciripini, PM, Dermody, SS, Drobes, DJ, Hecht, SS, Jensen, J, Lane, T, Le, CT, McClernon, FJ, Montoya, ID, Murphy, SE, Robinson, JD, Stitzer, ML, Strasser, AA, Tindle, H, Hatsukami, DK. (2015). Reduced Nicotine Standards for Cigarettes: A Randomized Trial. New England Journal of Medicine, 373, 1340-1349
Vandrey, R, Herrmann, ES, Mitchell, JM, Bigelow, GE, Flegal, R, LoDico, C, Cone, EJ. (2017). Pharmacokinetic Profile of Oral Cannabis in Humans: Blood and Oral Fluid Disposition and Relation to Pharmacodynamic Outcomes. Journal of Analytical Toxicology, 41, 83-99
Schlienz, NJ, Lee, DL, Stitzer, ML, Vandrey, R. (2018). The effect of high-dose dronabinol (oral THC) maintenance on cannabis self-administration. Drug and Alcohol Dependence, 187, 254-260
Contact for Research Inquiries
Johns Hopkins Bayview Medical Center
Behavioral Biology Research Center
5510 Nathan Shock Drive
Baltimore, MD 21224 map
Videos & Media
Recent News Articles and Media Coverage
Hopes for Budding Medical Marijuana Industry High, Yet Hazy, WYPR, April 30, 2014