Grainne specialises in pancreatic and hepatobiliary cancer malignancies. She completed her GI/thoracic oncology at the Princess Margaret Cancer Centre in Canada where she then joined faculty as a Clinician Investigator and Assistant Professor at the University of Toronto. She is PI on a number of early phase clinical trials and her translational research focuses on biomarker driven clinical trial design and integrative molecular profiling of tumours. Grainne has recently returned to Ireland and has been newly appointed to the Trinity St James’s Cancer Institute, Dublin. She continues to have an associate role at Princess Margaret and the Ontario Institute for Cancer Research.