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About PEAR

Dr. John Roll, an internationally recognized expert in the field of drug and alcohol abuse, founded the Program of Excellence in Addictions Research (PEAR) in 2006. Dr. Celestina Barbosa-Leiker is the current PEAR director. PEAR manages a budget of ~$14 million in research funding from a diverse set of funding streams and houses some of WSU Spokane’s largest health science projects, including RMHSAT and CATCH, and is nationally and internationally affiliated with more than 30 investigators. This transdisciplinary addiction science program ranges in disciplinary representation from health policy and economics to experimental pharmacotherapeutics and human toxicology. PEAR’s mission is to advance innovative, scientifically rigorous approaches to the understanding, treatment, and prevention of addictions.

Mission Statement

The mission of the Program of Excellence in Addictions Research (PEAR) is to advance innovative, scientifically rigorous approaches to the understanding, treatment, and prevention of addictions. We accomplish this by:

  • Conducting transdisciplinary research in interrelated areas
  • Training future scholars and clinicians
  • Promoting active participation of program affiliates in relevant policy arenas

Current Highlights

PEAR investigators are continually making significant contributions to the field of alcohol and drug addiction. See some of our most recent contributions below:

Recent Publications

  • Murphy, S.M., Campbell A.N.C., Ghitza U.E., Kyle T.L., Bailey G.L., Nunes E.V., Polsky D., (2016). Cost-effectiveness of an internet-delivered treatment for substance abuse: data from a multisite randomized controlled trial. Drug and Alcohol Dependence, 161, 119-126. doi:10.1016/j.drugalcdep.2016.01.021
  • McDonell MG, Skalisky J, Leickly E, McPherson S, Battalio S, Nepom JR, Srebnik D, Roll J, Ries RK. Using ethyl glucuronide in urine to detect light and heavy drinking in alcohol dependent outpatients. Drug Alcohol Dependence. 2015;157;184-187. PMCID: PMC4663163.
  • Barbosa-Leiker, C., McPherson, S., Daratha, K., Alicic, R., Short, R., Deiter, B., Roll, J., & Tuttle, K. (accepted). Association between prescription opioid use and biomarkers of kidney disease in US adults. Kidney and Blood Pressure Research.
  • Wilson, M., Roll, J., Corbett, C., Barbosa-Leiker, C. (2015). Empowering patients with persistent pain using an Internet-based self-management program. Pain Management Nursing, 16(4), 503-14. doi:10.1016/j.pmn.2014.09.009
  • McPherson, S., Howell, D., Lewis, J. M., Barbosa-Leiker, C., Metoyer, P. B., & Roll, J. M. (in press). Self-Reported Smoking Effects and Comparative Value Between Cigarettes and High Dose E-cigarettes in Nicotine Dependent Cigarette Smokers. Behavioral Pharmacology.

Grants and Funding

PEAR is not endorsing nor is it paid to promote any of these entities. The intention of providing these links is for the limited purpose of providing information to other entities.