On August 9, 2022 BioMarker Strategies reported that the journal CANCER BIOTHERAPY AND RADIOPHARMACEUTICALS has published a manuscript by the Company’s scientists entitled "Functional Profiling of Head and Neck/Esophageal Squamous Cell Carcinoma to Predict Cetuximab Response" (Press release, BioMarker Strategies, AUG 9, 2022, View Source [SID1234617963]). The manuscript describes the company’s progress in identifying predictive dynamic biomarkers to help identify the subset of patients with head and neck/esophageal squamous cell carcinoma (SCC) who may benefit from treatment with cetuximab (Erbitux) and biosimilars.
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Cetuximab is an antibody that targets an epidermal growth factor receptor (EGFR), and remains the only targeted therapy approved by the U.S. Food and Drug Administration (FDA) for SCC of head and neck/esophagus. For primary SCC, cetuximab is approved for use in combination with radiation. In metastatic SCC, it is approved for use in combination with platinum chemotherapy and fluorouracil.
The authors note that responses to cetuximab can be dramatic, but the response rate was only about 15% in the landmark clinical trial. The authors also note that cetuximab therapy is accompanied by a risk of serious adverse events that results in interrupted therapy in 3%-10% of patients. The cost of treatment is approximately $100,000 per patient. Additionally, immune checkpoint inhibitors are now an option in SCC. Therefore, methods to identify patients who are most likely to respond to cetuximab are needed.
SCC is the world’s sixth most common cancer. Worldwide, there are approximately 900,000 new cases and 450,000 deaths per year. In the United States alone there are approximately 66,630 new cases and 14,620 deaths per year.
"To minimize risk and maximize the therapeutic benefit of cetuximab, predictive tests to better identify patients likely to be responsive to cetuximab therapy are clearly an important need," said Jerry Parrott, President and CEO of BioMarker Strategies. "From my perspective, based on the results reported here, I would agree with the authors that further studies are warranted to test in more complex samples, including patient-derived tumor tissues."
The research described in the manuscript discussed here was supported by a Small Business Innovation Research (SBIR) award from the National Cancer Institute (NCI) of the National Institutes of Health (NIH).