Scienza e Tecnologia
Oncolytics Biotech® and SOLTI Present Positive Translational Data at SABCS
SAN DIEGO and CALGARY, AB , Dec. 7, 2023 /PRNewswire/ -- Oncolytics Biotech Inc. (NASDAQ: ONCY) (TSX: ONC), a clinical-stage immunotherapeutics company focused on oncology, today announced the presentation of additional translational data from the AWARE-1 breast cancer window-of-opportunity study conducted in combination with SOLTI-Innovative Cancer Research at The San Antonio Breast Cancer Symposium (SABCS).
"Translational data presented from the AWARE-1 study at SABCS showed that pelareorep induced the expansion of tumor-infiltrating lymphocytes, or TILs, in matched tumor biopsy and peripheral blood samples of newly diagnosed breast cancer patients. In addition, sequencing of the T cell receptors (TCRs) showed a more prominent expansion of existing TIL clones in the blood. We consider these results to be positive and important because they build on additional translational results reported this fall at two other medical meetings, The Society for Immunotherapy of Cancer (SITC) and The European Society for Medical Oncology (ESMO), from the AWARE-1 and GOBLET studies respectively, and provide further support for pelareorep's unique immunologic mechanism of action," said Dr. Matt Coffey , President and Chief Executive Officer of Oncolytics. "Taken together, these translational data affirm pelareorep's ability to enhance T cell infiltration into tumors and expand TILs in the peripheral blood, which have been correlated with tumor response. We intend to incorporate these learnings into the designs of our registrational studies in metastatic breast cancer and pancreatic cancer."
Thomas Heineman , M.D., Ph.D., Chief Medical Officer at Oncolytics, commented, "A review of the AWARE-1 study translational data presented at this year's SABCS and previous scientific conferences demonstrates that pelareorep treatment, especially in combination with atezolizumab, results in:
These findings confirm that pelareorep remodels the tumor microenvironment and stimulates tumor-directed immune responses, effects we believe are driven by the introduction of pelareorep's double-stranded RNA into cancer cells."
Dr. Heineman concluded, "Results from multiple prior studies lead us to believe that pelareorep has the potential to fill very important treatment gaps for both breast and pancreatic cancer patients. The translational data reported this fall emphasize the importance of TIL clone expansion in pelareorep-treated patients and represents an important area for further exploration. We believe that analysis of TIL clone expansion could become a helpful precision tool to provide an early indication of treatment response and serve as a potential guide to patient care with pelareorep. We remain dedicated to expeditiously advancing the clinical development of pelareorep in support of our goal to provide cancer patients with improved treatment options."
: From the AWARE-1 window-of-opportunity study of patients with early-stage HR+/HER2- breast cancer:
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: Pelareorep induced the expansion of existing TIL clones as well as new clones. These data are consistent with results from posters recently presented at SITC and ESMO and affirm that pelareorep functions as an immunotherapeutic agent.
AWARE-1 was an open-label window-of-opportunity study in early-stage breast cancer. The study combined pelareorep, without or with atezolizumab, and standard of care therapy according to breast cancer subtype. Tumor tissue was collected from patients as part of their initial breast cancer diagnosis, again on day three following initial treatment, and finally at three weeks following treatment, on the day their tumor is surgically resected. Key objectives of the study were to confirm that pelareorep is acting as a novel immunotherapy, to evaluate potential synergy between pelareorep and checkpoint blockade, and to collect biomarker data. The primary endpoint of the translational study was overall CelTIL score (a measurement of cellularity and tumor-infiltrating lymphocytes). Secondary endpoints for the study included safety and tumor and blood-based biomarkers. AWARE-1 met its primary endpoint of overall CelTIL score in 2021 (link to the PR, link to the poster). Additional biomarker data announced in 2022 showed pelareorep's potential to improve the prognosis of breast cancer patients (link to the PR, link to the poster).
A copy of the poster is available on the Oncolytics website and can be found by clicking here.
Oncolytics is a clinical-stage biotechnology company developing pelareorep, an intravenously delivered immunotherapeutic agent. Pelareorep has demonstrated promising results in Phase 2 studies in breast and pancreatic cancers. It acts by inducing anti-cancer immune responses and promotes an inflamed tumor phenotype -- turning "cold" tumors "hot" -- through innate and adaptive immune responses to treat a variety of cancers.
Pelareorep has demonstrated synergies with multiple approved oncology treatments. Oncolytics is currently conducting and planning combination clinical trials with pelareorep in solid and hematological malignancies as it advances towards registrational studies in metastatic breast cancer and pancreatic cancer. For further information, please visit: www.oncolyticsbiotech.com.
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Jon Patton
Director of IR & Communication
+1-858-886-7813
jpatton@oncolytics.ca
Timothy McCarthy
LifeSci Advisors
+1-917-679-9282
tim@lifesciadvisors.com
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