November 2021

Incidence and risk factors for herpes zoster in patients with rheumatoid arthritis receiving upadacitinib: a pooled analysis of six phase III clinical trials

Ann Rheum Dis. 2021. Epub ahead of print. doi: 10.1136/annrheumdis-2021-220822.

JAKinibs have been linked with an increased risk of HZ in patients with RA. To this end, Winthrop, et al. evaluated data from six Phase III clinical trials to determine the incidence of HZ in the upadacitinib (UPA)-treated patients with RA and identify potential risk factors for the development of HZ in these patients.Analysis of data provides further support for the need for continued vigilance and monitoring for signs of herpes zoster (HZ) in patients receiving UPA, particularly in Asian popul...

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A review of JAK-STAT signalling in the pathogenesis of spondyloarthritis and the role of JAK inhibition

Rheumatology (Oxford). 2021. Epub ahead of print. doi: 10.1093/rheumatology/keab740.

JAK inhibitors are likely to become an important part of the overall treatment paradigm for spondyloarthritis (SpA).Although not fully understood, the pathogenesis of SpA is complex and thought to involve both environmental and genetic factors that together elicit a chronic inflammatory response involving the innate and adaptive immune systems. Several different cytokines, TNF, IL-17A, IL-12/23 and IL-23, which are directly/indirectly affected by JAK molecules, are involved in the pathogenesis o...

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Upadacitinib in patients with psoriatic arthritis and an inadequate response to non-biological therapy: 56-week data from the phase 3 SELECT-PsA 1 study

RMD Open. 2021;7(3):e001838

Analysis of data over 56 weeks shows that efficacy responses are maintained with upadacitinib 15 mg and 30 mg.Following the publication of 12-week data from the Phase III, randomised double-blind, SELECT-PsA 1 study, earlier this year, McInnes, et al. now report the 56-week efficacy and safety data of upadacitinib 15 mg and 30 mg in patients with PsA and an inadequate response to non-biological therapyEfficacy responses and inhibition of radiographic progression were maintained with upadacitinib...

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October 2021

Reactivation of hepatitis B virus infection in patients with rheumatoid arthritis receiving tofacitinib

Int J Rheum Dis. 2021. Epub ahead of print

Tofacitinib could induce Hepatitis B virus (HBV) reactivation in RA patients.With previous studies having already demonstrated that RA patients using biologic agents, might experience HBV reactivation leading to acute hepatitis, hyperbilirubinemia, and death, Wang, et al. aimed to investigate HBV reactivation in patients with RA receiving tofacitinib. They found that Hepatitis B surface antigen positive patients receiving tofacitinib have a high incidence rate of HBV reactivation, which could be...

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Risk of herpes zoster (shingles) in patients with rheumatoid arthritis under biologic, targeted synthetic and conventional synthetic DMARD treatment: data from the German RABBIT register

Ann Rheum Dis. 2021 Jul 28:annrheumdis-2021-220651

A 3.6-fold increased risk of herpes zoster (HZ) is associated with tsDMARDs, and an increased risk is associated with bDMARDs, compared with csDMARDs. It is now well known that patients with RA have an increased risk of developing herpes zoster (HZ), and that incidence rates appear to be increased with TNF and JAK inhibitors. To this end, Redeker, et al. used data from the German RABBIT Registry to compare event and incidence rates of HZ in patients with RA treated with the three different DMAR...

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July 2021

Upadacitinib in Patients with Psoriatic Arthritis and Inadequate Response to Biologics: 56-Week Data from the Randomized Controlled Phase 3 SELECT-PsA 2 Study

Rheumatol Ther. 2021;8(2):903–919

Fifty-six-week data suggest that upadacitinib could be a favourable long-term treatment option in patients with PsA who are refractory to biologic therapy.As the need for additional therapeutic agents that can effectively control disease activity continues, new data from a 56-week analysis of the oral reversible JAK1 inhibitor, upadacitinib, currently under investigation for the treatment of PsA, shows that efficacy of the drug is maintained over the duration of this study.Mease, et al. explored...

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Associations of baseline use of biologic or targeted synthetic DMARDs with COVID-19 severity in rheumatoid arthritis: Results from the COVID-19 Global Rheumatology Alliance physician registry

Ann Rheum Dis. 2021 May 28. DOI: 10.1136/annrheumdis-2021-220418

Results from the COVID-19 Global Rheumatology Alliance physician registry show that people with RA using rituximab or JAKi, at COVID-19 onset, are more likely to experience poor COVID-19 outcomes, ranging from hospitalisation to death, compared with use of TNFi.The ongoing COVID-19 pandemic has had a significant impact on people with RA, many of whom are treated with b/tsDMARDs. To help address some of the knowledge gaps around the influence of b/tsDMARDs on COVID-19 outcomes, Sparks, et al. ana...

Comparison of the effects of baricitinib and tocilizumab on disease activity in patients with rheumatoid arthritis: a propensity score matching analysis

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

JAK/STAT pathway and nociceptive cytokine signalling in rheumatoid arthritis and psoriatic arthritis

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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Tofacitinib versus tocilizumab in the treatment of biological-naïve or previous biological-failure patients with methotrexate-refractory active rheumatoid arthritis

RMD Open. 2021;7(2):e001601.

Findings from a multicentre cohort study in Japan provide important information that is expected to aid in determining the position of tofacitinib in the treatment algorithm for RA.Mori S, et al. compared therapeutic outcomes, from real-world registries, at 12 months between tofacitinib-treated and tocilizumab-treated patients to clarify whether tofacitinib should only be considered as an option for patients who have either failed to respond to at least one bDMARD or are MTX-resistant/-intoleran...

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