Interim Ph 2 Data for GRANITE Neoantigen Targeting Immunotherapy in 1L Metastatic MSS CRC Announced
“We are excited by the potential of GRANITE to extend both progression-free and overall survival in a disease where relentless progression is the rule with existing therapies,” said Andrew Allen, MD, PhD, Co-Founder, President & CEO of Gritstone bio. “The field of neoantigen-targeting immunotherapy is evolving rapidly, and the focus is shifting to patients with lower volume disease. Notably, patients with newly diagnosed metastatic disease who have low ctDNA at study entry and thereby relatively low disease burden, could benefit from this type of immunotherapy. Success for immunotherapy typically manifests as an elevated plateau in PFS and overall survival Kaplan-Meier curves, and we may be seeing this in our low disease burden population. We need more time to let these data mature. The most recent ‘low and stable’ ctDNA measurements in most GRANITE patients are encouraging since that pattern is not typically seen in patients about to develop disease progression. The potential PFS benefit observed in MSS-CRC, a notoriously ‘cold’ tumor, suggests opportunity for even greater effects in tumors more typically amenable to immunotherapy.”
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