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Pharma Tech Outlook | Friday, April 23, 2021
Istari Oncology has announced that the US Food and Drug Administration (FDA) had approved IND for PVSRIPO in patients with solid tumors.
FREMONT, CA: Istari Oncology, Inc., a clinical-stage biotechnology firm, announces that the US Food and Drug Administration (FDA) has approved its Investigational New Drug Application (IND) for PVSRIPO patients who have solid tumors. PVSRIPO with or without PD-1/L1 inhibitors is evaluated in adult subjects with solid tumor cancers in LUMINOS-103, a Phase 1/2 open-label, multi-center, single-arm basket trial. The trial starts with two bladder cancer cohorts, and enrollment will begin in mid-2021.
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PVSRIPO is an innovative intratumoral viral immunotherapy that stimulates the patient's innate and adaptive immune systems to facilitate a systemic anti-tumor immune response. PVSRIPO induces solid tumor cells and antigen-presenting cells (APCs) into the microenvironment through CD155 (the poliovirus receptor). PVSRIPO can treat a wide range of cancers since CD155 is found on nearly every solid tumor.
"This will be an important test of PVSRIPO's versatility – and we're optimistic," said W. Garrett Nichols, MD, MS, Chief Medical Officer at Istari Oncology. "If the tumor can be biopsied, it can be injected, so there are a wide range of solid tumors we can investigate with PVSRIPO."
PVSRIPO has received its third IND approval. This IND approval comes during the progress of other clinical trials like the initiation of LUMINOS-101 in persistent glioblastoma and LUMINOS-102 in anti-PD-1/L1 refractory melanoma.
"LUMINOS-103 enables us to accelerate the clinical development program for PVSRIPO through the basket trial design, providing flexibility to evaluate multiple solid tumor types simultaneously," said Matt Stober, Chief Executive Officer at Istari. "Even with the approval of anti-PD-1/L1 therapies in certain solid tumor cancers, we believe there is still room for improvement. PVSRIPO's mechanism is synergistic with these therapies and as an intratumorally administered agent, we expect little additive toxicity."
PVSRIPO is experimental immunotherapy that is based on a genetically engineered live attenuated Sabin type 1 poliovirus vaccine. PVSRIPO has a unique entry point (the poliovirus receptor, CD155), found on almost all solid tumors and antigen-presenting cells.
Istari Oncology, Inc. is a privately-held clinical-stage biotechnology company based in Research Triangle Park, North Carolina, that focuses on innovative immuno-oncology and immunotherapy platforms to manage glioblastoma and other tumors.
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