David O'Neal

Professor David O'Neal holds the degrees of MBBS and MD from the University of Melbourne and is a Fellow of the Royal Australasian College of Physicians. He is a Professor in the Department of Medicine (St Vincent's) at the University of Melbourne, where he serves as the founder and Director of the Diabetes Technology Research Group and Head of Diabetes Technologies. As a senior consultant endocrinologist in the Department of Endocrinology at St Vincent's Public Hospital Melbourne and the Baker Heart and Diabetes Institute, he manages inpatient and outpatient care, heads an insulin pump clinic, and practices as a general physician at Werribee Mercy Hospital. O'Neal holds additional teaching appointments at the University of Notre Dame Australia and the University of Sydney for undergraduate and postgraduate programs, and supervises students at the University of Melbourne. His clinical and academic roles emphasize patient-centered care integrated with innovative diabetes management.

O'Neal's research focuses on novel diabetes technologies, including closed-loop insulin delivery systems, continuous glucose and ketone monitoring, automated insulin delivery, and their impacts on glycaemic control during exercise and in real-world settings for adults with Type 1 and Type 2 diabetes. He has led numerous investigator-initiated clinical trials through national and international collaborations with clinicians, academics, and industry. The Diabetes Technology Research Group has received funding from the Juvenile Diabetes Research Foundation, Helmsley Charitable Trust, St Vincent's Hospital Research Endowment Fund, and the Australian Government's Medical Research Future Fund. Awards include the Diabetes Australia Millennium Research Award in Type 1 Diabetes (2022), Diabetes Victoria Outstanding Contribution to Diabetes Award (2019), Diabetes Victoria Award for Excellence in Diabetes (2020), JDRF-Australia Diabetes Research Innovation Award for an established researcher (2011), and the University of Melbourne 2020 MDHS Award for Excellence in Team-Based Research Programs. Key publications feature 'Use of professional-mode flash glucose monitoring, at 3-month intervals, in adults with type 2 diabetes in general practice (GP-OSMOTIC): a pragmatic, open-label, 12-month, randomised controlled trial' (The Lancet Diabetes & Endocrinology, 2020), 'Six months of hybrid closed-loop versus manual insulin delivery with fingerprick blood glucose monitoring in adults with type 1 diabetes: a randomized, controlled trial' (Diabetes Care, 2020), 'Supporting insulin initiation in type 2 diabetes in primary care: results of the Stepping Up pragmatic cluster randomised controlled clinical trial' (BMJ, 2017), and 'Glycaemic impact of patient-led use of sensor-guided pump therapy in type 1 diabetes: a randomised controlled trial' (Diabetologia, 2009). With over 300 publications and more than 8,000 citations, his work has advanced diabetes technology and clinical outcomes.

Professional Email: dno@unimelb.edu.au