On June 13, 2018 Sun BioPharma, Inc. (OTCQB:SNBP) and its wholly owned subsidiary, Sun BioPharma Australia Pty Ltd, a clinical stage biopharmaceutical company developing disruptive therapeutics for the treatment of patients with pancreatic diseases, reported that on June 4, 2018 the first patients were enrolled in a Phase 1a/1b study of SBP-101 in combination with gemcitabine and nabpaclitaxel for front-line treatment of patients with metastatic pancreatic ductal adenocarcinoma (PDA) (Press release, Sun BioPharma, JUN 13, 2018, View Source [SID1234527299]). Sun BioPharma Australia Pty Ltd, is the sponsor of this study. The Phase 1a portion of this study will treat up to 18 PDA patients in three cohorts in order to determine a recommended dose of SBP-101 to be given in combination with standard treatment. The Phase 1b portion will be an expansion at the recommended dose of SBP-101, and will guide SBP-101’s subsequent development for patients with PDA. This multi-center, front-line study has 3 sites in Australia, The Austin Health Cancer Trials Centre in Melbourne, The Adelaide Cancer Centre in Adelaide, The Blacktown Cancer and Haematology Centre in Sydney and one site in the United States, The University of Florida Health Cancer Center in Gainesville, Florida. The first patients have been enrolled at the Adelaide Cancer Centre in Adelaide, Australia under the direction of Associate Professor Dusan Kotasek and at the University of Florida Health Cancer Center in Gainesville, Florida under the direction of Thomas J. George, MD, F.A.C.P.

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Dr. Kotasek received his medical degree at the University of Adelaide and specialty training in Haemotology and Oncology at The Queen Elizabeth Hospital followed by a Fellowship at the University of Minnesota, in Minneapolis, MN, USA. A Co-Founder of the Adelaide Cancer Centre, Dr. Kotasek has published over 60 scientific papers in oncology, and he is one of Australia’s leading cancer clinical research experts. Dr. Kotasek, the Principal Investigator for this study at the Adelaide Cancer Centre commented, "Pancreatic cancer is a challenging disease with few significant options available with a meaningful impact on response rates and progression free survival. We are excited to participate in this clinical study, and to continue our evaluation of SBP-101 as front-line combination treatment for previously untreated patients with metastatic PDA."

Dr. George is a medical oncologist having graduated with honors from the University of Florida College of Medicine. He is the Director of the GI Oncology Program at the University of Florida and Associate Director of Clincial Investigation at the UF Health Cancer Center. He is the Principal Investigator for this study at the University of Florida Health Cancer Center and he commented, "We are extremely honored to be participating in this important study that was born from the discoveries made by Dr. Raymond Bergeron here at the University of Florida. Pancreatic cancer
requires us to think outside the box which is exactly what this treatment has the potential to offer our patients with PDA."

"Pancreatic cancer is a leading cause of cancer deaths in both Australia and the United States, currently being the 3rd most common cause of cancer deaths in the US. It represents a significant unmet medical need, with most patients having a poor prognosis and limited life expectancy," said Suzanne Gagnon, M.D., Chief Medical Officer at Sun BioPharma. "Our recently completed safety study in heavily pre-treated PDA patientssuggested SBP-101 could be a promising addition to current front-line treatment regimens. The Data Safety Monitoring Board, Principal
Investigators and our clinical team agreed to move directly to front-line for our second trial and we are excited to study SBP-101 in combination with standard of care chemotherapy for previously untreated metastatic PDA patients."

About SBP-101
SBP-101 is a first-in-class, proprietary, polyamine compound designed to exert therapeutic effects in a mechanism specific to the pancreas. Sun BioPharma originally licensed SBP-101 from the University of Florida Research Foundation in 2011. The molecule has been shown to be highly effective in preclinical studies of human pancreatic cancer models, demonstrating superior activity to existing FDA-approved chemotherapy agents. Combination therapy potential has also been shown for pancreatic cancer. SBP-101 is expected to differ from current pancreatic cancer
therapies in that it specifically targets the exocrine pancreas and has shown efficacy against primary and metastatic disease in animal models of human pancreatic cancer. Therefore management believes that SBP-101 may effectively treat both primary and metastatic pancreatic cancer, while leaving the insulin-producing islet cells and non-pancreatic tissue unharmed. The safety and metabolic profile demonstrated in our first-in-human safety study further supports
evaluation of the potential for additive or synergistic effects in combination with current standard pancreatic cancer treatment