Jane Blazeby FMedSci is Professor of Surgery at the University of Bristol and a Honorary Consultant Upper GI Surgeon at the University Hospitals Bristol NHS Foundation Trust. She is chief investigator of the By-Band-Sleeve Study (NIHR HTA reference 09/127/53) and supports many other surgical trials e.g. ROMIO (NIHR HTA reference 14/140/78) and SUNFLOWER (NIHR HTA reference 16/142/04). She has methodological expertise in outcome selection, measurement and reporting and in early and later phase surgical study design and conduct. She is currently a member of the COMET executive group and the MRC Trials Methodology Research Partnership. She enjoys multi-disciplinary collaborative working and working with patients to optimise study design, delivery and implementation. She is an NIHR Senior Investigator.