Kai-Keen Shiu, MD, PhD, on Colorectal Cancer: Pembrolizumab vs Chemotherapy for Microsatellite Instability–High Disease
2021 Gastrointestinal Cancers Symposium
Kai-Keen Shiu, MD, PhD, of the University College Hospital NHS Foundation Trust - London, discusses an interim analysis of PFS 2 results (defined as time from random assignment to progression on the next line of therapy or death) from the phase III KEYNOTE-177 trial. This study has already shown that first-line pembrolizumab provides a clinically meaningful and statistically significant improvement in PFS compared with chemotherapy in patients with microsatellite instability–high metastatic colorectal cancer (Abstract 6).
Afsaneh Barzi, MD, PhD, of the City of Hope Comprehensive Cancer Center and the University of Southern California, discusses reasons for the incomplete understanding of the molecular landscape of minority patients with cancer, lack of screening chief among them. This underrepresentation, Dr. Barzi says, is more marked in gastrointestinal malignancies than other solid tumors, and she recommends ways to improve the outlook.
Rocio Garcia-Carbonero, MD, of Hospital Universitario 12 De Octubre, discusses results of the phase II/III AXINET trial, which showed that axitinib plus long-acting release octreotide improved overall response compared with placebo and octreotide in patients with advanced grade 1 or 2 extrapancreatic neuroendocrine tumors. However, no significant improvement in progression-free survival was observed (Abstract 360).
Matthew H.G. Katz, MD, of The University of Texas MD Anderson Cancer Center, discusses findings from the Alliance A021501 study, which showed that administering mFOLFIRINOX before surgery was associated with a favorable overall survival rate relative to historical data in patients with borderline resectable adenocarcinoma of the pancreas (Abstract 377).
Romain Cohen, MD, PhD, of the Mayo Clinic and Sorbonne University, discusses a post-hoc analysis of phase III results from the CALGB/SWOG 80702 study, which showed that adding the number of tumor deposits, a negative prognostic factor, to the count of lymph node metastases may improve the accuracy of TNM staging (Abstract 10).
Milind M. Javle, MD, of The University of Texas MD Anderson Cancer Center, discusses phase II study results showing that the novel tyrosine kinase inhibitor infigratinib may prove to be effective in treating patients with advanced cholangiocarcinoma harboring an FGFR2 gene fusion or rearrangement (Abstract 265).