On November 1, 2018 Oncolytics Biotech Inc. (NASDAQ: ONCY) (TSX: ONC), currently developing pelareorep, an intravenously delivered immuno-oncolytic virus, reported publication of an abstract on pelareorep to be presented at the American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting & Exposition taking place December 1-4 in San Diego, California (Press release, Oncolytics Biotech, NOV 1, 2018, View Source [SID1234530637]).
Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:
Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing
Schedule Your 30 min Free Demo!
The abstract, authored by Craig C. Hofmeister, Acting Associate Professor, Department of Hematology and Medical Oncology Emory University School of Medicine, et al., is titled "Oncolytics Virus Replication Using Pelareorep (Reolysin) and Carfilzomib in Relapsed Myeloma Patients Increases PD-L1 Expression with Clinical Responses".
Because immune checkpoint inhibitors can only be effective when tumors express checkpoints such as PD-L1, an industry-wide effort is underway to identify agents that can upregulate the checkpoints on checkpoint-naked tumor cells. The abstract outlines a two-part study that demonstrated an increase in viral infection, viral replication and PD-L1 expression on the surface of myeloma cells for patients undergoing treatment with pelareorep in combination with carfilzomib (Kyprolis), a proteasome inhibitor, while carfilzomib alone has not been shown to induce PD-L1 expression. In part one of the study, six carfilzomib-sensitive patients showed reovirus infection and replication in the post-treatment bone marrow aspirates. In part two of the study, seven carfilzomib-refractory patients were enrolled, and of the three patients processed to date, reovirus infection was detected in myeloma cells of two patients and endothelial cells of one patient.
"With two very good partial responses and two partial responses, the results demonstrate an objective response at the recommended dose, as well as increased viral infection and viral replication," said Dr. Matt Coffey, President and Chief Executive Officer of Oncolytics Biotech. "Most notably, in these myeloma patients receiving a proteasome inhibitor, systemically delivered pelareorep led to increases in PD-L1 expression, making pelareorep an ideal candidate to use in combination with this drug class."
The complete abstract can be found online at View Source Full details from the poster presentation will be announced after it is presented.
Presentation Number: 2655
Title:
Oncolytics Virus Replication Using Pelareorep (Reolysin) and Carfilzomib in Relapsed Myeloma Patients Increases PD-L1 Expression with Clinical Responses
Date: Sunday, December 2
Lecture Time: 6:00 p.m. PT – 8:00 p.m. PT
Location: San Diego Convention Center, Hall GH
Speakers: Craig Hofmeister
Session:
605. Molecular Pharmacology, Drug Resistance—Lymphoid and Other Diseases: Poster II
About Pelareorep
Pelareorep is a non-pathogenic, proprietary isolate of the unmodified reovirus: a first-in-class intravenously delivered immuno-oncolytic virus for the treatment of solid tumors and hematological malignancies. The compound induces selective tumor lysis and promotes an inflamed tumor phenotype through innate and adaptive immune responses to treat a variety of cancers and has been demonstrated to be able to escape neutralizing antibodies found in patients.