EAACI: Dupixent demonstrated superiority over Xolair (omalizumab) in chronic rhinosinusitis with nasal polyps in patients with coexisting asthma in first-ever presented phase 4 head-to-head respiratory study New late-breaking data at EAACI showed Dupixent outperformed Xolair across all primary and secondary efficacy endpoints of CRSwNP and in all asthma-related endpoints Dupixent also outperformed Xolair in improving such key signs and symptoms as nasal polyp size and sense of smell in CRSwNP, and lung func ...