Janus kinase-targeting therapies in rheumatology: a mechanisms-based approach

Nat Rev Rheumatol. 2022 Jan 5:1–13. Epub ahead of print doi: 10.1038/s41584-021-00726-8

The development of targeted small-molecule therapies such as JAK inhibitors, which have varied selective inhibitory profiles, has enabled a paradigm shift in the treatment of diverse disorders, to the extent that they could ultimately enable either complete withdrawal or avoidance of glucocorticoid use in some autoimmune diseases, and could have the potential to regulate any active factor inhibiting the transition to cure.In this review paper, Tanaka, et al. describe the progress in JAK-targetin...

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Post-hoc analysis shows that dosing up from tofacitinib 5 to 10 mg BID is associated with improved efficacy for up to 12 months, versus staying on 5 mg BID, and dosing down from 10 to 5 mg BID is not generally associated with a significant loss of efficacy.Although clinical trials have generally shown no significant differences, in terms of efficacy and safety, when switching tofacitinib dose up or down, these per-protocol switches are not directly informative for clinical decision-making in dai...
Systematic review and network meta-analysis highlight that RA patients who receive recommended doses of the five approved JAK inhibitors (tofacitinib, baricitinib, upadacitinib, filgotinib, and peficitinib) are likely to experience an increase in serum low- and high-density lipoprotein (LDL and HDL) levels.JAK inhibitors have been associated with alterations in levels of LDL and HDL cholesterol, which may lead to dyslipidaemia (an important risk factor for cardiovascular disease). However, the e...

Cardiovascular and Cancer Risk With Tofacitinib in Rheumatoid Arthritis

N Engl J Med 2022;386:316–26. doi: 10.1056/NEJMc2202778

In this paper, Ytterberg et al. compare incidence of MACE and cancers (excluding NMSC) with tofacitinib 5 mg BID, tofacitinib 10 mg BID and TNFi. They found that risk of MACE and cancer were higher with tofacitinib versus TNFi, and did not meet noninferiority criteria.This prospective head-to-head safety trial compared tofacitinib to TNFi, and was required by the FDA after increases in lipid levels and cancers were observed during tofacitinib drug development. ...

January 2022

This post hoc analysis provides the first detailed description of the management and outcomes of HZ events in tofacitinib RA and PsA clinical studies.While prior studies have characterised the increased HZ risk with JAKinibs, the clinical management of these events has not been detailed.To this end, Winthrop, et al. analysed data from 21 RA and 3 PsA clinical studies to evaluate how HZ events and their sequelae were clinically managed during the RA and PsA tofacitinib clinical development progra...
This post hoc analysis shows that pain reduction was similar between opioid users and nonusers with baricitinib 2 mg and 4 mg, but not adalimumab.Use of opioids to treat RA-related pain has increased, yet long-term use has been associated with reduced efficacy and safety concerns. In addition, the misuse of opioids has resulted in a public health crisis in the United States and highlights the need for safe, effective nonaddictive alternatives for pain management. As such, Pope, et al. assessed p...
Upadacitinib as monotherapy or in combination with background MTX was effective in inhibiting the progression of structural joint damage through Week 48 in MTX-naïve and MTX‐inadequate responder patients with RA.Recently approved in many countries for the treatment of RA, upadacitinib has been shown to significantly reduce the progression of structural joint damage in two Phase 3 studies (SELECT-EARLY and SELECT-COMPARE). In this analysis, Peterfy, et al. evaluated the progression of structural ...

December 2021

Highlights of 2021

Please click the links below to go to the CSF review of each paper

I’m sure we’d all hoped that this year would be a return to normal but, in the midst of the challenges we’ve faced with COVID-19, the rheumatology community has continued to deliver excellent publications, and we’ve covered many of these on the CSF. Here are my highlights from 2021's publications: Points to Consider for the Treatment of Immune-Mediated Inflammatory Diseases With Janus Kinase Inhibitors: A Co...

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Integrated analysis evaluates the safety of filgotinib among patients with RA treated for a median of 1.6 years.Winthrop, et al. analysed data from seven trials, including long-term extension studies, and found that rates of TEAEs, grade ≥3 TEAEs, serious TEAEs and TEAEs leading to study drug discontinuation were comparable for filgotinib and placebo. In addition, analysis of AEs of special interest showed a generally similar incidence for filgotinib 200 mg and 100 mg....