On October 18, 2024, the U.S. Food and Drug Administration (FDA) approved zolbetuximab-clzb (Vyloy, Astellas Pharma), a novel treatment for adults with locally advanced unresectable or metastatic human epidermal growth factor receptor 2 (HER2)-negative gastric or gastroesophageal junction (GEJ) adenocarcinoma. This approval brings a much-needed new option for patients whose tumors express the CLDN18.2 protein, as identified through an FDA-approved test. …
