Strata Oncology Announces Publication of Study Validating Clinical Utility of Pan-tumor Predictive Biomarker for Checkpoint Inhibitor Immunotherapy Benefit
07 Feb 2023
ImmunotherapyClinical Study
Immunotherapy Response Score predicts rwPFS and OS across tumor types
Presents opportunity to expand immunotherapy benefit to more patients and optimize use
ANN ARBOR, Mich., Feb. 7, 2023 /PRNewswire/ -- Strata Oncology, Inc., a next-generation precision oncology company enabling smarter and earlier cancer treatment, today announced the publication of a new peer-reviewed study validating the clinical utility of the company's proprietary pan-solid tumor predictive biomarker for anti-PD-1/PD-L1 checkpoint inhibitor monotherapy benefit, Immunotherapy Response Score (IRS). The study was published by Communications Medicine, a Nature publication.
Strata Oncology developed IRS using treatment data and comprehensive, clinically validated genomic and transcriptomic profiling of tumor tissue from the Strata Trial®, an ongoing observational clinical trial evaluating the impact of molecular profiling for patients with advanced solid tumors. The biomarker algorithm, which was validated in an independent cohort of trial patients, captures the biology of the tumor and its microenvironment by combining tumor mutation burden (TMB) with quantitative expression of PD-L1, PD-1, ADAM12 and TOP2A.
"Our Immunotherapy Response Score meets a significant unmet medical need for an integrative diagnostic test that better predicts likelihood of benefit from anti-PD-1/PD-L1 checkpoint inhibitor monotherapy, across solid tumor types," said Scott Tomlins, M.D., Ph.D., Strata Oncology co-founder and Chief Medical Officer. "Current pan-tumor biomarkers for these treatments identify only a fraction of responsive patients, meaning far too many people who could benefit from these therapies are not being identified."
Tomlins continued: "Additionally, immunotherapy is now often combined with chemotherapy. Our exploratory data in non-small cell lung cancer indicate that IRS may be a useful tool to help determine which patients can achieve similar benefit without the toxic effects of chemotherapy."
Key findings from the study include:
IRS predicted real-world progression-free survival and overall survival in anti-PD-1/PD-L1 monotherapy treated patients across tumor types
In non-small cell lung cancer (NSCLC) patients who were IRS-high, there was no significant benefit of combination therapy (pembrolizumab + chemotherapy) compared to monotherapy (pembrolizumab)
"Immunotherapy has transformed cancer care and now with IRS we have the ability to predict benefit across tumor types," said Dan Rhodes, Ph.D., Strata Oncology co-founder and Chief Executive Officer. "We are excited to put this novel biomarker into the hands of physicians to help them ensure every patient gets their best possible therapy."
About Strata Oncology
Strata Oncology, Inc. is a precision oncology company dedicated to delivering the best possible treatment for each patient with cancer. The company combines molecular profiling, real-world data, and a large-scale clinical trial platform to identify and deliver optimal treatments for patients with cancer. For more information visit strataoncology.com.
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SOURCE Strata Oncology, Inc.
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