Tumour necrosis factor receptor-associated periodic syndrome (TRAPS) is a dominantly inherited autoinflammatory disease characterised by recurrent episodes of fever, arthritis and serositis. In adulthood, inflammation often becomes persistent1 and AA amyloidosis may occur. Evidence of dysregulated secretion of proinflammatory cytokines, particularly interleukin 1 (IL-1) beta, in autoinflammatory diseases recently supported anakinra, the recombinant IL-1 receptor antagonist, as a target therapy for most of these conditions.2 3 In TRAPS, response to anakinra was reported in two case reports and in one prospective trial, in which five patients were treated for a mean duration of 11.4 months.4,–,6 However, longer follow-up and additional observations are warranted. We report the long-term efficacy and safety of anakinra in seven TRAPS patients with and without …