Dominic joined Trinity College Dublin in 2017 as an Assistant Professor of Economics and is jointly appointed as faculty for the Global Brain Health Institute and Trinity School of Medicine. Trépel is also primary investigator in Trinity College Institute of Neuroscience (TCIN) where he directs Trépel lab. Trépel has been an academic health economics for over 15 years, has published over 100 research articles and much of this research efforts are dedicated to the study of dementia, brain health and ageing. Trépel lab currently includes ten PhDs and Postdoctoral researchers working on grants funded by: Health Research Board (HRB), Irish Research Council (Ireland), Research Collaborative in Quality and Patient Safety (RCQPS), Health and Social Care Northern Ireland (R&D Division), Global Brain Health Institute, Brainlat and National Health and Medical Research Council (NHMRC).