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<p>Interleukin (IL)-6 plays a central role in amplifying inflammation, and its inhibition is beneficial in managing immune-mediated inflammatory diseases (IMIDs) such as rheumatoid arthritis (RA). IL-6 signaling inhibition is associated with a slightly increased risk of infections in patients with RA, and older age has been identified as a risk factor for severe adverse events, including infections. Therefore, the combination of an aging population and the increasing use of IL-6R inhibitors in RA treatment highlights the importance of carefully evaluating the safety and effectiveness of these therapies in older patients with RA. Recent postmarketing surveillance (PMS) data on the safety and effectiveness of sarilumab (SAR) in Japanese patients with RA, along with PMS data from Japan and registry data from France and Germany of tocilizumab (TCZ), provide valuable insights for both current and future management of RA. These data suggest that anti-IL-6R therapies are generally well tolerated among older patients with RA and do not appear to increase the risk of cardiovascular events or malignancies. While the effectiveness of TCZ was somewhat lower in older patients compared with younger ones, the effectiveness of SAR was similar across age groups. Consequently, the use of anti-IL-6R antibodies is anticipated to expand to other IMIDs beyond RA, particularly in increasingly superaged societies worldwide.</p>

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Targeting IL-6 Signaling: Safety and Effectiveness in Older Patients with Rheumatoid Arthritis

  • 期刊论文

  • 发表日期：

    2025年9月5日

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  • Hideto Kameda,
  • Reina Maezawa,
  • Yasuto Minegishi,
  • Chihiro Imaizumi,
  • Takaharu Katagiri,
  • Takehisa Ogura

摘要

Interleukin (IL)-6 plays a central role in amplifying inflammation, and its inhibition is beneficial in managing immune-mediated inflammatory diseases (IMIDs) such as rheumatoid arthritis (RA). IL-6 signaling inhibition is associated with a slightly increased risk of infections in patients with RA, and older age has been identified as a risk factor for severe adverse events, including infections. Therefore, the combination of an aging population and the increasing use of IL-6R inhibitors in RA treatment highlights the importance of carefully evaluating the safety and effectiveness of these therapies in older patients with RA. Recent postmarketing surveillance (PMS) data on the safety and effectiveness of sarilumab (SAR) in Japanese patients with RA, along with PMS data from Japan and registry data from France and Germany of tocilizumab (TCZ), provide valuable insights for both current and future management of RA. These data suggest that anti-IL-6R therapies are generally well tolerated among older patients with RA and do not appear to increase the risk of cardiovascular events or malignancies. While the effectiveness of TCZ was somewhat lower in older patients compared with younger ones, the effectiveness of SAR was similar across age groups. Consequently, the use of anti-IL-6R antibodies is anticipated to expand to other IMIDs beyond RA, particularly in increasingly superaged societies worldwide.