Oncology Brothers: Practice-Changing Cancer Discussions

FDA Approval of Durvalumab with FLOT in Resectable Gastric & GEJ: MATTERHORN by Dr. Yelena Janjigian

Nov 26, 2025
Join Dr. Yelena Y. Janjigian, a leading oncologist from Memorial Sloan Kettering and the pioneer behind the MATTERHORN study, as she unpacks groundbreaking insights into gastric and gastroesophageal cancer treatment. She shares the impressive three-year survival rate of 68.6% with Durvalumab combined with FLOT chemotherapy. The podcast also covers the study's design, the feasibility of immunotherapy, and its implications for managing patient side effects. Insights on extrapolating findings to esophageal adenocarcinoma further enrich this enlightening discussion.
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INSIGHT

Durvalumab Improves Perioperative Outcomes

  • MATTERHORN showed adding durvalumab to perioperative FLOT is feasible and improves pathological responses and event-free survival.
  • Two-year overall survival reached ~76% with durvalumab versus ~70% control in this global study.
INSIGHT

A Global FLOT Immunotherapy Trial

  • MATTERHORN was a large (n=948), global randomized trial including Asia, Europe, North and South America.
  • The study successfully implemented FLOT worldwide, overcoming regional practice differences.
ADVICE

Start Immunotherapy Before Surgery

  • Give immunotherapy while the tumor is present to potentiate the antitumor immune response.
  • Continue therapy postoperatively to suppress micrometastases during recovery.
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