Omalizumab and cancer risk: Current evidence in allergic asthma, chronic urticaria, and chronic rhinosinusitis with nasal polyps

Omalizumab is a biological drug targeting circulating IgE, approved for use in allergic asthma, chronic spontaneous urticaria, and recently for chronic rhinosinusitis with nasal polyps, with good efficacy in all these settings. Some concerns about omalizumab safety have been raised as its use has been recently linked to potential increased cancer risk. Nevertheless, literature evidence does not support this statement, and clinical studies and evidence from real-world registries and sur-veillance analysis have consistently reported drug safety.