Ellen trained in medical oncology in London and Southampton, receiving her CCT in 2009. Following a PhD studying heritable breast cancer, Ellen developed a particular interest in genomic and nutritional factors which influence early breast cancer outcomes. She is lead oncologist of the POSH UK cohort study of young breast cancer patients and of the CANDO3 study of body composition and chemotherapy toxicity. Ellen is principle investigator for a number of observational and interventional clinical trials in early and advanced breast cancer and clinical advisor to several cancer survivorship studies. Ellen acted as chair of the World Cancer Research Fund Global Cancer Survivorship expert panel from 2022-2024 and has been co-chair of the NCRI breast cancer working group on lifestyle interventions. She is a member of the UK Breast Cancer Clinical Studies Group (2013-2019 and 2023-).
Ellen has been co-chair of the Wessex Molecular Tumour Board since 2017 and cancer lead of the Central and South Central Genomic Laboratory Hub since 2021. She is oncology lead for Health Education England’s “GeNotes” genomics information resource and is involved in a number of other national educational initiatives in cancer genomics. Locally, Ellen is oncology lead of the University of Southampton medical degree course.