Prof. Ajay Aggarwal is a Consultant Clinical Oncologist at Guy’s & St Thomas’ NHS Foundation Trust, London, and Professor of Cancer Services and Systems Research at the London School of Hygiene and Tropical Medicine (LSHTM). His main research areas are health system design, performance assessment of cancer care and Global Health. He was appointed Clinical Director of the ten national cancer audits in England and Wales in 2023 (natcan.org.uk) and was awarded an Advanced Fellowship by the National Institute for Health Research (NIHR) in 2020. He is the Editor in Chief of the Journal of Cancer Policy. In his role as the clinical lead for the UK National Prostate Cancer Audit, he co-led the development and delivery of the first ever national hospital outcome reporting programme for radiotherapy. As Co-Chair of the Health Economics in Radiation Oncology (HERO) group within European Society for Radiation Oncology (ESTRO), he is co-leading the value-based healthcare initiative. He has worked as a Consultant for the World Health Organisation and is the Chief Investigator of the NIH funded ARCHERY study, the first prospective international multicentre trial across India, Jordan, Malaysia and South Africa evaluating the role of AI in radiotherapy.