Study Team

Chief Investigator

Prof. Jane Blazeby

Jane Blazeby is the Chief Investigator of the By-Band-Sleeve study. She is Professor of Surgery at the University of Bristol and an Honorary Consultant Upper GI Surgeon at University Hospitals Bristol and Weston NHS Foundation Trust.

Bristol Trials Centre Team

Prof. Chris Rogers

Chris Rogers is Director of the Bristol Trials Centre at the University of Bristol. The BRI Hub of the BTC, which is fully registered under the auspices of the UK Clinical Research Collaboration, is the coordination centre for the By-Band-Sleeve study. Chris is a Professor in Medical Statistics with over 25 years’ experience in the design, conduct, analysis and reporting of clinical studies. She has a particular interest in trials in surgery in general. She has been statistical lead for several multi-centre trials, including the CRISP and IVAN trials.
Her role in By-Band-Sleeve is to lead the methodological implementation and delivery of the study.

Prof. Barney Reeves

Barney Reeves is a Professorial Research Fellow in Health Services Research, carrying out Health Technology Assessment primarily in hospital settings. He is one of the research area leads in the NIHR Bristol Biomedical Research Centre (Cardiovascular Theme), and is co-Director of the UKCRC-registered Bristol Trials Centre (BRI Hub). He is also a co-convenor of the Cochrane non-randomised studies group and a member of the NIHR-HTA Commissioning Board.

His role in By-Band-Sleeve is to provide methodological advice and expertise.

Dr. Graziella Mazza

Graziella is the By-Band-Sleeve study manager. Her role is to manage and coordinate the study on a day-to-day basis. She is the first point of contact for By-Band-Sleeve at the coordinating centre.

Qualitative Research Team

Prof. Jenny Donovan

Jenny Donovan is Professor of Social Medicine in the Bristol Medical School, University of Bristol and the Qualitative Lead for By-Band-Sleeve. Jenny leads a wide range of Health Services Research projects/teams, including a team that specialises in optimising recruitment to randomised controlled trials such as the By-Band-Sleeve study. As the Qualitative Lead, she employs a range of research methods to identify and address any patient recruitment problems in the By-Band-Sleeve study.