RT Journal Article SR Electronic T1 Anti-interleukin 1 agents for the treatment of recurrent pericarditis: a systematic review and meta-analysis JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1240 OP 1245 DO 10.1136/heartjnl-2020-318869 VO 107 IS 15 A1 Massimo Imazio A1 Alessandro Andreis A1 Francesco Piroli A1 George Lazaros A1 Marco Gattorno A1 Martin Lewinter A1 Allan L Klein A1 Antonio Brucato YR 2021 UL http://heart.bmj.com/content/107/15/1240.abstract AB Aims Corticosteroid-dependent and colchicine-resistant recurrent pericarditis (RP) is a challenging management problem, in which conventional anti-inflammatory therapy (nonsteroidal anti-inflammatory drugs, colchicine, corticosteroids) is unable to control the disease. Recent data suggest a potential role for anti-interleukin-1 (IL-1) agents for this condition. This study was designed to assess the safety and efficacy of anti-IL-1 agents in this setting.Methods We performed a systematic review and meta-analysis of randomised controlled trials and observational studies assessing pericarditis recurrences and drug-related adverse events in patients receiving anti-IL-1 drugs for pericarditis.Results The meta-analysis assessed 7 studies including 397 pooled patients with RP. The median age was 42 years, 60% were women and the aetiology was idiopathic in 87%. After a median follow-up of 14 months (IQR,12–39), patients receiving anti-IL-1 agents (anakinra or rilonacept) had a significantly reduction in pericarditis recurrences (incidence rate ratio 0.06, 95% CI 0.03 to 0.14), compared with placebo and/or standard medical therapy. Anti-IL-1 agents were associated with increased risk of adverse events compared with placebo (risk ratio (RR) 5.38, 95% CI 2.08 to 13.92): injection-site reactions occurred in 15/41 (36.6%) vs none (RR 14.98, 95% CI 2.09 to 107.09), infections occurred in 13/51 (25.5%) vs 3/41 (7.3%; RR 3.65, 95% CI 1.23 to 10.85). Anti-IL-1 agents were not associated with increased risk of severe adverse events.Conclusions In patients with RP, anti-IL-1 agents (anakinra and rilonacept) are efficacious for prevention of recurrences, without severe adverse events.All data relevant to the study are included in the article or uploaded as supplementary information.