Boczar, Kevin E.

Background: Corticosteroids are widely used in pericarditis despite guideline recommendations reserving them for select indications. Observational studies have reported inconsistent associations between corticosteroid use and pericarditis recurrence, and optimal dosing and tapering strategies remain unclear. We conducted a systematic review of oral corticosteroids for acute or recurrent pericarditis to characterize patterns of treatment and evaluate the association between corticosteroids and pericarditis recurrence across different disease contexts. Methods: MEDLINE, EMBASE, CENTRAL, and Scopus were searched from inception to November 26, 2025. Studies enrolling adults with acute or recurrent pericarditis treated with oral corticosteroids were included. Randomized trials, cohort studies, and case–control studies reporting clinical outcomes were eligible. Risk of bias was assessed using the Newcastle–Ottawa Scale (NOS). Data were synthesized descriptively due to anticipated clinical and methodological heterogeneity. Results: Ten studies (2 prospective, 8 retrospective) including 2632 patients (800 corticosteroid-treated) met inclusion criteria. Prednisone was most frequently studied, with heterogeneous dosing (0.25–1.0 mg/kg/day) and non-standardized tapering strategies. Follow-up ranged from 1 to 6.7 years, and overall risk of bias was moderate with limited adjustment for confounding. Findings on recurrence were inconsistent in acute idiopathic and post-procedure pericarditis, while most studies in recurrent pericarditis reported higher recurrence with corticosteroid exposure. Conclusions: Evidence evaluating oral corticosteroids in pericarditis is limited by heterogeneity, confounding, and inconsistent reporting of treatment strategies. Observational data show variable associations with recurrence across clinical contexts. High-quality randomized trials stratified by pericarditis etiology and acuity are needed to define the optimal use of corticosteroids in pericarditis.

Background: One of the most troublesome complications of acute pericarditis is recurrence. Non-steroidal anti-inflammatory drugs (NSAIDs) and colchicine form the cornerstone treatment, with the addition of steroids in cases of incomplete response. Recent evidence also suggests a role for interleukin-1 (IL-1) antagonists in challenging cases of recurrence. However, with an increasing number of potential therapies, our study aims to examine the relative efficacy of these anti-inflammatory treatments for recurrent pericarditis risk reduction. Methods: We searched Medline, Embase, and the Cochrane Central Register of Controlled Trials in October 2023. We included randomized controlled trials (RCTs) and prospective cohort studies of patients with pericarditis treated with a drug with anti-inflammatory properties compared with those treated with a control. The main outcome evaluated was pericarditis recurrence. Results: A total of 6,831 studies were screened, of which 25 articles were included (14 RCTs and 11 cohort studies) for a total number of patients of 3,561. The mean age across studies was 54.82 years for adults and 9.04 years for children (females = 40.55%). The average follow-up duration was 20.03 months. Bayesian network meta-analysis was performed to calculate risk estimates using a random effects model (Figure 1). Goflikicept, a fusion protein that neutralizes IL-1, showed a significant reduction in recurrent pericarditis rates (OR: 0.00, 95% Credible Limits [Crl]: 0.00-0.08). Similarly, anakinra (OR: 0.01, 95% Crl: 0.00-0.13), rilonacept (OR: 0.02, 95% Crl: 0.00-0.22) and colchicine (OR: 0.35, 95% Crl: 0.19-0.64) were associated with a significant reduction in recurrent pericarditis events. High dose colchicine (OR: 0.70, 95% Crl: 0.13-4.12) was not superior to regular dose colchicine (1 mg vs 0.6 mg twice daily, respectively). Interestingly, there was not enough data to make a meaningful comparison between steroids and control. Conclusion: In our analysis, goflikicept, rilonacept, and anakinra were most effective at reducing recurrent pericarditis rates. However, the evidence is based on a small number of studies. Our analysis also corroborated evidence regarding the efficacy of colchicine in reducing pericarditis recurrence. For a comprehensive analysis of the benefits and harms of anti-inflammatory therapies, larger comparative studies or network meta-analyses of patient-level data are required.