 Product: Kineret anakinra Comparative agents: Methotrexate or azathioprine or leflunomide or cyclosporin A or sulphasalazine Protocol title: An open, randomized study treating refractory adult-onset Stills disease with IL-1ra anakinra Kineret, compared to an established, single anti-rheumatic treatment Target Disease: Adult-onset Stills disease Patients: 23 patients diagnosed with AOSD, living in the four Nordic countries. 