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Interleukin 1 inhibition with anakinra in adult-onset Still disease: a meta-analysis of its efficacy and safety

Authors Hong D, Yang Z, Han S, Liang X, Ma K, Zhang X, Sang Y

Received 29 August 2014

Accepted for publication 25 September 2014

Published 25 November 2014 Volume 2014:8 Pages 2345—2357


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Professor Shu-Feng Zhou

Dongsheng Hong,1 Zhihai Yang,1 Shuyin Han,1 Xingguang Liang,1 Kuifen Ma,1 Xingguo Zhang1,2

1Department of Pharmacy, the First Affiliated Hospital of College of Medicine, Zhejiang University, 2College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, People’s Republic of China

Background: Anakinra is the first interleukin-1 inhibitor to be used in clinical practice, and recent evidence showed that interleukin-1 plays a pivotal role in the pathogenesis of adult-onset Still disease (AoSD). However, data concerning efficacy with anakinra use in different clinical trials has not been evaluated, and the overall remission of AoSD with anakinra treatment has not been well defined.
Methods: We conducted a search on Embase, PubMed, and the Cochrane Library for relevant trials. Statistical analyses were conducted to calculate the overall remission rates, odds ratios (OR), and 95% confidence intervals (CI), by using either random effects or fixed effect models according to the heterogeneity.
Results: Of the 273 articles that were identified, 265 were excluded. Eight studies were eligible for inclusion. The overall remission rate and complete remission rate of anakinra in AoSD patients were 81.66% (95% CI: 69.51%–89.69%) and 66.75% (95% CI: 59.94%–75.3%), respectively. Compared with the controls, the use of anakinra was associated with a significant remission in AoSD, with an OR of 0.16 (95% CI: 0.06–0.44, P=0.0005). There were also significant reductions of the dosage of corticosteroid (mean difference =21.19) (95% CI: 13.2–29.18, P<0.0001) from anakinra onset to the latest follow up time. Clinical and laboratory parameters were all improved, and anakinra was well tolerated in patients with AoSD. No evidence of publication bias was observed.
Conclusion: Our study has shown that anakinra is effective in remitting the manifestations of AoSD, with reduction of the dose of corticosteroid in patients with AoSD. Further, anakinra therapy was not associated with increased risk of adverse events, and it was well tolerated in patients with AoSD. Further research is still recommended to investigate these findings.

Keywords: interleukin-1 inhibitor, AoSD, anakinra, adverse events, clinical and laboratory parameters, efficacy

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