Investigating sirukumab for rheumatoid arthritis: 2-year results from the phase III SIRROUND-D study

Carter Thorne, Tsutomu Takeuchi, George Athanasios Karpouzas, Shihong Sheng, Regina Kurrasch, Kaiyin Fei, Benjamin Hsu

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Objectives The phase III, multicentre, randomised, double-blind, placebo-controlled, parallel-group SIRROUND-D study evaluated long-term efficacy and safety of the interleukin (IL)-6 inhibitor, sirukumab, in patients with active rheumatoid arthritis (RA) refractory to disease-modifying antirheumatic drugs (DMARDs). Methods Patients were randomised 1:1:1 to sirukumab 100mg every 2 weeks (q2w), 50mg every 4 weeks or placebo q2w subcutaneously. Patients initially randomised to placebo were rerandomised at Weeks 18, 40 or 52 to one of the sirukumab groups until Week 104. Results Of 1670 randomised patients, 1402 were included in the full analysis set and 1269 in the radiographic analysis set at Week 104. American College of Rheumatology scores, Disease Activity Score based on C-reactive protein, Clinical Disease Activity Index and clinically meaningful improvements in patient-reported outcomes were sustained at Week 104 among patients initially randomised to sirukumab. Placebo patients subsequently rerandomised to sirukumab showed clinical improvements at Week 104 that were comparable to results among patients initially randomised to sirukumab. Radiographic progression from Week 52 to Week 104 was comparable between all groups whether initially randomised to sirukumab or subsequently rerandomised to sirukumab from placebo. No new safety signals were identified in the extended exposure period compared with the initial 52 weeks of treatment. Conclusions Sirukumab treatment resulted in sustained reductions in clinical signs and symptoms and minimal progression in radiographic damage over 2 years among patients with RA refractory to DMARDs. The safety profile of sirukumab was as expected for an anti-IL-6 agent, with no new signals reported.

元の言語English
記事番号e000731
ジャーナルRMD Open
4
発行部数2
DOI
出版物ステータスPublished - 2018 11 1

ASJC Scopus subject areas

  • Immunology and Allergy
  • Rheumatology
  • Immunology

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