Kiniksa Pharmaceuticals Ltd. Kiniksa Pharmaceuticals International PLC is a clinical-stage biopharmaceutical company focused on discovering, acquiring, developing, and commercializing therapeutic medicines for patients suffering from debilitating cardiovascular diseases. The company's clinical-stage product candidates include Rilonacept, abiprubart, and Vixarelimab. Geographically, the company earns maximum revenue from United States.