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Jul 15, 2026
Four biomarkers—MMR, HER2, PD-L1, and Claudin 18.2—are now validated for advanced esophageal cancer, guiding immunotherapy and targeted treatment decisions. Checkpoint inhibitors show clear benefit in MSI-H and PD-L1-positive subgroups, with long-term survival observed. NCCN guidelines recommend broad testing to personalize therapy.
Apr 21, 2026
VYLOY (zolbetuximab-clzb) remains the only approved CLDN18.2-targeted therapy for first-line HER2-negative gastric or gastroesophageal junction adenocarcinoma with CLDN18.2-positive tumors. The pipeline is focused on next-generation antibodies, ADCs, CAR-T, NK-cell and bispecific approaches aiming to build on zolbetuximab benchmark data.
Mar 22, 2026
Over 20 pharmaceutical companies are developing therapies for HER2-positive gastric cancer, with multiple Phase III trials launched in March 2026 testing novel combination treatments for advanced disease.
Mar 01, 2026
New ASCO guideline emphasizes biomarker-driven treatment for advanced gastroesophageal cancer, recommending upfront testing for HER2, PD-L1, MSI/MMR, and CLDN18.2 to guide immunotherapy and targeted therapy selection.
