A panel of international experts finalized the prioritization of health-care questions and people-important outcomes to be addressed in the new guidelines for the primary prevention of gastric cancer in Europe, during the second meeting of the EU-GAINS – European Commission Initiative on Gastric Cancer (EC-GaC) Working Group, coordinated by scientists from the International Agency for Research on Cancer (IARC). The meeting took place at IARC on 22–24 April 2026.