Prurigo Nodularis

The main aim of this study is to assess real-world effectiveness of nemolizumab in Prurigo nodularis (PN) as measured by investigator and patient reported outcome (PRO) in clinical practice at Month 6.

This trial was designed to evaluate the efficacy and safety of SHR-1819 injection in patients with Prurigo Nodularis.

This is a Phase 3, multicenter, open-label, pharmacokinetics (PK)/safety study. The study consists of 3 periods: * Screening period: 2 to 4 weeks. * Treatment period: 24 weeks. * Post-intervention follow-up period: 16 weeks. The study duration will be approximately 42 to 44 weeks for each participant (including screening, treatment, and follow-up periods). The total number of planned study visits for each participant will be 6.

Prurigo nodularis (PN) is a skin disease characterized by the presence of single to multiple symmetrically distributed, intensively itching nodules. The main symptom is uncontrollable itching leading to prolonged, repetitive, and uncontrollable rubbing, scratching which in turn causes injuries to the skin. In recent years, number of studies evaluating PN, the affected population and the disease burden has increased but PN remains still understudied. This non-interventional study is intended to describe the long-term effectiveness of dupilumab (Dupixent®) in participants aged 18 years or older and suffering from moderate-to-severe PN who receive dupilumab for PN treatment in a real-world setting in Germany according to the prescribing information (Summary of Product Characteristics \[SmPC\]). The decision to initiate dupilumab treatment is made by the treating physician and participant according to the participant's medical need and to the standard of best medical practice. This decision is made independently and before data inclusion in this non-interventional study.

Although it is well known that the clinical expression and course of chronic inflammatory skin diseases are highly variable, there are insufficient epidemiological data on this, and the factors that determine the manifestation, clinical features and course are also largely unknown. There are currently no reliable markers that could predict or delineate patient subgroups to support patient management. The aim of this project is to identify clinical and molecular factors that correlate with disease, disease subtypes and progression through in-depth long-term clinical characterization of patients with chronic inflammatory skin diseases and examination of individual biomaterials.

A phase III clinical study to evaluate the efficacy and safety of a humanized MG-K10 mab injection in subjects with prurigo nodularis.administered every 4 weeks for 56 weeks.

In order to further improve the diagnosis and treatment level of type 2 inflammatory skin diseases, the National Clinical Center for Skin and Immune Diseases established a standardized diagnosis and treatment center for type 2 inflammatory skin diseases to systematically and effectively understand the current treatment status of patients with type 2 inflammatory skin diseases, as well as the efficacy and safety of various treatment methods during practices, so as to further improve the diagnosis and treatment level of type 2 inflammatory skin diseases and help patients with type 2 inflammatory skin diseases.