Dr. Campbell's scholarship and teaching is in the field of pharmaceutical outcomes research and, in particular, cost-effectiveness research application, methods and measurement. Dr. Campbell receives funding from federal and non-profit foundations to study the value of pharmaceuticals and other medical interventions. One line of research collaboration is with the Institute for Clinical and Economic Review. As the graduate director for the Pharmaceutical Outcomes Research PhD track within Pharmaceutical Sciences, Dr. Campbell is active in teaching in both the professional PharmD and Pharmaceutical Outcomes Research PhD programs.