Dr. Hassell has been the Director of the Center since 2003, after serving as its Associate Director since 1992. She has been with the University since 1989. Dr. Hassell provides inpatient and outpatient care to adults with sickle
cell disease at the University of Colorado Hospital. She is a site principal investigator for multi-center clinical trials for adults with sickle cell disease, and has provided national leadership on study steering and executive committees.
Dr. Hassell has led several regional projects through the Mountain States Genetics Regional Collaborative Center, and serves on the Newborn Screening Advisory Committee for the Colorado State Department of Health. She also sits on the steering
committees of a number of national projects including the Sickle Cell Disease Treatment Demonstration Project for HRSA, the American Society of Hematology’s Public Health Taskforce, and the Registries and Surveillance for Hemoglobinopathies
(RuSH) Project for the CDC and NIH.Dr. Hassell recently completed a four-year, part-time, IPA assignment with the National Heart, Lung and Blood Institute (NHLBI).
Dr. Nuss has been with the University since 1988. She directs the pediatric program of the Colorado Sickle Cell Treatment and Research Center at The Children’s Hospital in Denver and conducts outreach clinics in Colorado Springs.
Dr. Nuss is a site principal investigator for multi-center clinical trials for children with sickle cell disease; she has led investigator-initiated translational and early phase clinical studies, and collaborates with basic science investigators.