Pathological complete response to pembrolizumab in dMMR CRC despite radiological residual disease Skip to content The CRC Digest Pathological complete response to pembrolizumab in dMMR CRC despite radiological residual disease A case report describes a 70-year-old man with dMMR sigmoid colon cancer and liver metastases who achieved pathological complete response in both primary and metastatic lesions after preoperative pembrolizumab, despite imaging suggesting
Gut microbiome may influence resistance to immunotherapy in MSI-H/dMMR colorectal cancer Skip to content The CRC Digest ◇ RESEARCH Gut microbiome may influence resistance to immunotherapy in MSI-H/dMMR colorectal cancer A narrative review summarizes evidence that the gut microbiome-immune axis regulates antitumor immunity and may mediate both primary and acquired resistance to immune checkpoint inhibitors in MSI-H/dMMR CRC. (Front Cell
Chemoradiotherapy plus immunotherapy may expand checkpoint blockade benefit in mismatch repair-proficient rectal cancer Skip to content The CRC Digest ◇ RESEARCH Chemoradiotherapy plus immunotherapy may expand checkpoint blockade benefit in mismatch repair-proficient rectal cancer Adding immune checkpoint blockade to chemoradiotherapy has been associated with pathological complete response rates of 30% or more in pMMR rectal cancer trials, higher than expected with chemoradiotherapy alone, though
Critical review outlines biomarker-guided treatment selection in metastatic CRC Skip to content The CRC Digest Critical review outlines biomarker-guided treatment selection in metastatic CRC A structured narrative review separately examines mismatch repair-deficient/MSI-H and microsatellite-stable disease, distinguishing established treatments from investigational strategies based on molecular alterations including BRAF V600E and HER2. (Crit Rev Oncol Hematol) This content is informational
Secondary actionable fusions in MLH1-deficient MSI-H tumors may impact pembrolizumab outcomes Skip to content The CRC Digest Secondary actionable fusions in MLH1-deficient MSI-H tumors may impact pembrolizumab outcomes A molecular subanalysis of the GAstrointestinal INestable cohort evaluated secondary fusions in MLH1-deficient dMMR/MSI-H gastrointestinal tumors treated with pembrolizumab, finding that these fusions may be enriched in MLH1-deficient colorectal cancer with mitogen-activated