Sleep disorders in patients with chronic spontaneous/inducible urticaria

Aim: Assess the frequency of sleep disorders in patients with spontaneous and inducible chronic urticaria through the Global Sleep Assessment Questionnaire (GSAQ).

Project lead: Ivan Chérrez Ojeda, Marcus Maurer, Thomas Roth


Project advisor: Torsten Zuberbier

Steering committee: Ivan Cherrez-Ojeda, Marcus Maurer, Thomas Roth, Leonie Shirin Herzog, Kanokvalai Kulthanan, Daria Fomina, Petra Staubach-Renz, Caroline Marie Thérèse Mann

Status: Global Rollout

Number of participating centers: 50 (aim)

Number of patients included: 400 (aim)

Project documents (project announcement, IRB Approval, protocol file, English and Spanish questionnaires so that you can visualize the survey and the instructions to fill out the survey, which outlines the required steps for any center that wishes to participate in the project) can be found in the UCARE member area. If you do not yet have access, please reach out to Emilia Zimmermann (

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