International Rare And Severe Psoriasis Expert Network

This project is to describe the natural course of disease in different subtypes of PP. The network builds on a static registry that was based on a one-time clinical characterization of PP patients in Europe (ERASPEN). The International Rare and Severe Psoriasis Expert Network (IRASPEN) already has multiple clinicians involved who have successfully characterized and included their patients in ERASPEN. IRASPEN addresses the question of temporal evolution of clinical features and is actually a non-interventional prospective registry that aims to describe the clinical course and responses to already established treatments of a large number of PP patients over a period of 5 years. The data collection with this registry will give insight on the natural course of PP disease revealing the burden of disease including frequency and severity of flares and the role of therapeutic interventions.