Iain Macpherson is Professor of Breast Oncology at the University of Glasgow and Honorary Consultant Medical Oncologist at the Beatson West of Scotland Cancer Centre, where he specialises in the treatment of breast cancer. He is Chief Investigator of the UK HER2-RADiCAL study and co-Chief Investigator of the multi-national OPTIMA trial with both studies aiming to advance more personalised approaches to the treatment of early breast cancer. He also leads a pre-clinical research programme investigating metabolic drivers of breast cancer progression. He is currently Treasurer of the UK Breast Cancer Group and Chair of the Scottish Cancer Trials Breast Group, and has served as a member of the NCRI Breast Clinical Studies Group, the Breast Cancer Now Scientific Advisory Board and the West of Scotland Research Ethics Committee. He trained in medicine at the University of Glasgow, graduating in 1998. He then completed a PhD at the CRUK Beatson Institute and undertook speciality training in Medical Oncology at the Beatson West of Scotland Cancer Centre.