期刊
RHEUMATOLOGY
卷 46, 期 11, 页码 1688-1693出版社
OXFORD UNIV PRESS
DOI: 10.1093/rheumatology/kem212
关键词
heart failure; rheumatoid arthritis; Crohn's disease; infliximab; etanercept; TNF-alpha antagonists; adverse events
类别
资金
- AHRQ HHS [U18 HS010389, HS10389] Funding Source: Medline
- NIAMS NIH HHS [T32 AR047512, K24 AR052361, T32 AR47512-03, K23 AR053351, K23 AR053351-01A1, K24 AR052361-01] Funding Source: Medline
Objectives. New onset heart failure (HF) has been associated with the use of TNF-alpha antagonists etanercept and infliximab based upon spontaneous adverse event reports. HF clinical trials of these agents were stopped early due to futility or worsening of existing HF. A potential association between etanercept and infliximab and new onset HF has been studied minimally at a population level. Methods. Using administrative claims from a large U. S. health care organization, we identified rheumatoid arthritis (RA) and Crohn's disease (CD) patients receiving infliximab or etanercept (exposed), and comparator cohorts of RA and CD patients receiving non-biologic immunosuppressives (unexposed). We studied adults < 50 years to reduce potential confounding related to common age-related comorbidities. Based on abstracted medical records of suspected HF cases, a physician panel adjudicated cases as definite, possible or no HF. Results. Among 4018 RA and CD patients with mean duration follow-up of 18 months, 9 of 33 suspected HF cases (identified using claims data) were adjudicated as definite (n = 5) or possible (n = 4) HF. The relative risk of HF among TNF-alpha antagonist-treated RA and CD patients was 4.3 and 1.2, respectively (P = NS for both). The absolute difference in cumulative incidence of HF among infliximab or etanercept-exposed compared to unexposed patients was 3.4 and 0.3 cases per 1000 persons for RA and CD (P = NS), respectively, yielding a number needed to harm of 294 for RA and 3333 for CD. Conclusion. We found only a small number of presumed HF cases (n = 9, or 0.2%) in a large population of relatively young RA and CD patients. Although there was an increased relative risk of incident, HF that was not statistically significant among those exposed to TNF-alpha antagonists compared to those unexposed, larger cohorts are needed to provide more precise risk estimates and permit adjustment for potential confounding.
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