Neutrophilic dermatoses are a spectrum of inflammatory disorders characterized by skin lesions resulting from a neutrophil-rich inflammatory infiltrate in the absence of infection. Pyoderma gangrenosum is associated with a neutrophilic leukocytosis, which is likely to be triggered by C5a. This study is set up based on the hypothesis that vilobelimab might be able to block C5a induced pro-inflammatory effects such as neutrophil activation and cytokine generation, potentially contributing to the local skin inflammation and tissue damage.
