1. Department of Dermatology University Hospital of Brest Brest France
2. Association France Prurigo Nodulaire Agen France
3. Department of Dermatology Edouard Herriot Hospital Lyon France
4. Statistician Paris France
5. Galderma, Rx Strategy & Innovation Group Lausanne Switzerland
6. Department of Patients Priority EMMA Fontenay‐sous‐Bois France
7. Department of Dermatology University Hospital of Toulouse Toulouse France