On November 3, 2021 Oncolytics Biotech Inc. (NASDAQ: ONCY) (TSX: ONC) reported that the first patient has been dosed in the phase 1/2 GOBLET trial (Press release, Oncolytics Biotech, NOV 3, 2021, View Source [SID1234594292]). The trial is being managed by AIO, a leading academic cooperative medical oncology group based in Germany, and is designed to investigate the use of pelareorep in combination with Roche’s anti-PD-L1 checkpoint inhibitor atezolizumab in patients with metastatic pancreatic, metastatic colorectal and advanced anal cancers.
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"Fewer than half of gastrointestinal (GI) cancer patients respond to immune checkpoint inhibitor (ICI) monotherapy, creating a pressing unmet need for techniques to enhance the efficacy of these agents," said Dirk Arnold M.D., Ph.D., Director of Asklepios Tumorzentrum Hamburg, and primary investigator of the GOBLET trial. "We believe that pelareorep can address this need and increase the proportion of GI cancer patients responding to ICIs, as clinical studies have shown that it reverses the immunosuppressive tumor microenvironments underlying checkpoint inhibitor resistance. Dosing the first patient in GOBLET represents a crucial step towards the evaluation of this hypothesis, and we look forward to the trial’s continued advancement."
The GOBLET study builds on data that was recently presented at the 2021 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting that demonstrated clinical proof-of-concept for pelareorep-checkpoint inhibitor combination therapy in pancreatic cancer (link to PR, link to poster). It is also supported by prior early clinical data showing that pelareorep-based combination treatments stimulated an adaptive immune response and led to a greater than 90% clinical benefit rate in KRAS-mutated colorectal cancer patients (link to PR, link to study) and a greater than 80% increase in progression-free survival in pancreatic cancer patients with low levels of CEACAM6 expression (link to PR, link to poster). In addition to evaluating the safety and efficacy of pelareorep-atezolizumab treatment, the trial also seeks to demonstrate the potential of CEACAM6 and T cell clonality as predictive biomarkers, which may allow selection of the most appropriate patients in future registration studies and increase their likelihood of success.
About GOBLET
The GOBLET (Gastrointestinal tumOrs exploring the treatment comBinations with the oncolytic reovirus peLarEorep and anTi-PD-L1) study is a phase 1/2 multiple indication biomarker, safety, and efficacy study in advanced or metastatic gastrointestinal tumors. The study is being conducted at 15 centers in Germany. The primary endpoint of the study is safety, with overall response rate and biomarker evaluation (T cell clonality and CEACAM6) as exploratory endpoints. Approximately 55 patients are planned to be enrolled in four independent cohorts:
Pelareorep in combination with atezolizumab, gemcitabine, and nab-paclitaxel in 1st line metastatic pancreatic cancer patients (n=12);
Pelareorep in combination with atezolizumab in 1st line MSI (microsatellite instability)-high metastatic colorectal cancer patients (n=19);
Pelareorep in combination with atezolizumab and TAS-102 in 3rd line metastatic colorectal cancer patients (n=14); and
Pelareorep in combination with atezolizumab in 2nd line advanced and unresectable anal cancer patients (n=10).
About AIO
AIO-Studien-gGmbH (AIO) emerged from the study center of the internal oncology working group within the German Cancer Society (DKG). AIO operates with a non-profit purpose of promoting science and research with a focus on internal oncology. Since its foundation, AIO has become a successful sponsor and study management company and has established itself both nationally and internationally.
About Gastrointestinal Cancer
Excluding skin cancers, colorectal cancer is the third most common cancer, with an estimated 104,270 new cases of colon cancer and 45,230 new cases of rectal cancer expected to be diagnosed in the U.S. in 20211. Also, for the 2021 year, the American Cancer Society estimates there will be 60,430 new cases of pancreatic cancer2 and 9,090 new cases of anal cancer3 in the U.S.