October 2021

Radiographic progression of structural joint damage over 5 years of baricitinib treatment in patients with rheumatoid arthritis: Results from RA-BEYOND

J Rheumatol. 2021 Sep 15:jrheum.210346.

Oral baricitinib maintained lower levels of radiographic progression than initial csDMARD or placebo through 5 years in patients with active RA.It is well known that persistent joint inflammation in RA can lead to irreversible structural damage that impacts on patient physical function and quality-of-life. To this end, van der Heijde, et al. evaluated the effect of baricitinib on inhibiting radiographic progression of structural joint damage over 5 years in patients with active RA. Results from ...

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July 2021

関節リウマチ患者の疾患活動性に対する効果のbaricitinibとtocilizumabの比較: プロペンシティスコア マッチング解析

Clin Rheumatol. 2021 Jun 16. DOI: 10.1007/s10067-021-05815-3

The influence of inflammation on patient global assessment (PGA) improvements differs between baricitinib and tocilizumab differs. Adequate PGA improvement remains one of the unmet needs in current RA treatment.Asai, et al. compared the effects of baricitinib and tocilizumab on disease activity in patients with RA while investigating the influence of inflammation on PGA improvement.Using data from a multicentre registry, 48 propensity-matched pairs of patients, who had been observed for longer t...

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June 2021

関節リウマチと乾癬性関節炎におけるJAK/STAT 経路と侵害受容サイトカインシグナル

Clin Exp Rheumatol. 2021;39(3):668-675.

The JAK/STAT pathway is receiving increasing attention in modulation of nociceptive responses, given its clear role in cytokine signalling. The authors of this review speculate that JAKinibs may have an effect on the modulation of nociception and reduction of pain.Crispino N, et al. review the impact of pain in patients with rheumatic disease and the physiological basis of modulating nociceptive pain. They examine the role of cytokines in the modulation of pain and analyse current clinical JAKin...

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May 2021

長期試験においてtofacitinibで治療された関節リウマチ患者の画像的進行評価

Rheumatology (Oxford). 2021;60(4):1708-1716.

Long-term evaluation of tofacitinib has found limited progression of structural damage in patients with RA treated with tofacitinib for up to 5 years. Similar results were also observed for patients receiving tofacitinib monotherapy or combination therapy for up to 3 years.It is well known that inflammation in RA leads to structural damage over time, and therapies such as DMARDS have the ability to reduce inflammation whilst inhibiting the progression of structural damage. In this study, van der...

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April 2021

BTK 阻害薬の比較検討 と有害事象のメカニズム

Front. Cell Dev. Biol. 9:630942 DOI: 10.3389/fcell.2021.630942

Understanding of the B-cell receptor signalling pathway led to the identification of a suitable drug target to addresses autoimmunity and inflammation in areas such as MS, RA, pemphigus and SLE. There are currently 22 BTKis in various stages of clinical development. However, AEs such as cardiovascular and bleeding side effects, as well as rash, diarrhoea and infections have been associated with the inhibition of other kinases with a BTKi-binding cysteine in their catalytic domain.Based on clinic...

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February 2021

JAK/STAT 経路: 関節リウマチの疼痛に焦点をあてて

Semin Arthritis Rheum. 2021 Feb;51(1):278-284

Many cytokines associated with RA pathogenesis and pain are affected directly or indirectly by the JAK/STAT pathway, therapeutic targeting may offer promise. Having better understanding of these mechanisms can help clinicians make treatment decisions that optimise the control of inflammation and pain. However, pain in patients with RA is complex and involves multiple driving mechanisms that may differentially occur over time in different people. Although one known constant is that nociceptive ac...

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バリシチニブは関節リウマチ患者の関節破壊進行を抑制 – 包括的レビュー

Arthritis Res Ther 2021;23(1):3.

MRI studies have shown that BARI reduces joint inflammation and damage in patients with moderate-to-severe active RA. This review summarises the effects of BARI on structural joint damage progression and the mechanisms underlying these effects, using MRI data from across the clinical trial program. Early preclinical animal models showed a significant reduction in joint inflammation, ankle width, and bone resorption. Efficacy and safety of BARI have been confirmed in an extensive programme, inclu...

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