Tanios Bekaii-Saab, MD
Microsatellite instability-high (MSI-H) tumors comprise approximately 4% of patients with colorectal cancer (CRC), and those patients are likely to respond to checkpoint inhibitors, such as nivolumab (Opdivo) and pembrolizumab (Keytruda), according to Tanios Bekaii-Saab, MD.
on Gastrointestinal Malignancies, Bekaii-Saab discussed the emerging role of immunotherapy in patients with MSI-H tumors and beyond.
OncLive: Please provide an overview of your presentation.
My discussion focused on the role of immunotherapy, specifically PD-1 and PD-L1 inhibitors, in patients who have MSI-H tumors. Those are cancers that lack the expression of some proteins. This is a surrogate marker for tumors that are loaded with mutations, such as hypermutated tumors.
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