Because the study is observational, there are
no additional visits or changes to standard care. Participants continue to see their regular doctor for their regular appointments while completing periodic questionnaires about their CSU symptoms, quality of life, and treatment experience.
This observational study is designed to describe the real-world effectiveness, safety, and patterns of use of dupilumab in patients with CSU.
The decision to initiate dupilumab treatment will be at the discretion of the treating physician. Patients initiating dupilumab during the enrollment period will be included in the study.