September 2023

Efficacy of Tofacitinib on Enthesitis in Patients with Active Psoriatic Arthritis: Analysis of Pooled Data from Two Phase 3 Studies

Arthritis Res Ther. 2023 22;25(1):153 doi: 10.1186/s13075-023-03108-5

Post-hoc analysis of two tofacitinib phase three studies concludes that tofacitinib treatment resulted in improvements in enthesitis in patients with PsA, regardless of baseline location or severity.

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Efficacy and Safety of the TYK2/JAK1 Inhibitor Brepocitinib for Active Psoriatic Arthritis: A Phase IIb Randomized Controlled Trial

Arthritis Rheumatol. 2023;75(8):1370–1380 doi: 10.1002/art.42519

Phase IIb study of brepocitinib in patients with PsA concludes that treatment with brepocitinib 30 mg and 60 mg QD, was superior to placebo at reducing signs and symptoms of PsA and was well-tolerated over 52 weeks.

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The effect of ixekizumab on axial manifestations in patients with psoriatic arthritis from two phase III clinical trials: SPIRIT-P1 and SPIRIT-P2

Ther Adv Musculoskelet Dis. 2023;15:1759720X231189005 doi: 10.1177/1759720X231189005

Post-hoc analysis of SPIRIT-P1 and SPIRIT-P2 concludes that ixekizumab (IXE) is effective in improving axial symptoms in patients with active PsA presenting with axial manifestations.

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August 2023

Post-Marketing Safety Surveillance of Tofacitinib over 9 Years in Patients with Psoriatic Arthritis and Rheumatoid Arthritis

Rheumatol Ther. 2023;10(5):1255–1276 doi: 10.1007/s40744-023-00576-8

The data gathered in this post-marketing surveillance study aligned with the previously established safety profile of tofacitinib, and reports were found to have consistent safety profiles in the treatment of both patient with PsA and RA. However, the results of this study should be interpreted considering the limitations of post-marketing surveillance studies.

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Upadacitinib in Patients with Psoriatic Arthritis and Inadequate Response to Biologics: 3-year Results from the Open-Label Extension of the Randomised Controlled Phase 3 SELECT-PsA 2 Study

Clin Exp Rheumatol. 2023;41(11):2286–2297 doi: 10.55563/clinexprheumatol/8l7bbk.

Data from this open-label extension showed the efficacy of upadacitinib observed at 56 weeks was maintained through to 152 weeks in the treatment of patients with PsA. No cumulative adverse effects were observed, and no new safety signals were identified.

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The 2023 Pipeline of Disease-Modifying Antirheumatic Drugs (DMARDs) in Clinical Development for Spondyloarthritis (including psoriatic arthritis): a Systematic Review of Trials

RMD Open. 2023;9(3):e003279 doi 10.1136/rmdopen-2023-003279 https://pubmed.ncbi.nlm.nih.gov/37507210/

This systematic review identified DMARDs evaluated for axSpA and PsA, distinguishing between csDMARDs, tsDMARDs, and bDMARDs. The review pinpointed twenty-six distinct targeted therapies currently in clinical development; 18 therapies for axSpA and 15 therapies for PsA.

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Do Fatty Lesions Explain the Effect of Inflammation on New Syndesmophytes in Patients with Radiographic Axial Spondyloarthritis? Results From the SIAS Cohort and ASSERT Trial

RMD Open. 2023 9(3):e003118 doi: 10.1136/rmdopen-2023-003118

This study concluded that, in r-axSpA, vertebral corner inflammation may lead to syndesmophyte formation but in a minority of cases via visible fat deposition. Here, investigators aimed to determine how much of the effect of vertebral corner inflammation on the development of syndesmophytes is explained by vertebral corner fat deposition.

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Relationship Between Paraoxonase-1 Genotype and Activity, and Major Adverse Cardiovascular Events and Malignancies in Patients with Rheumatoid Arthritis Receiving Tofacitinib

J Rheumatol. 2023 doi 10.3899/jrheum.2023-0112 Epub ahead of print

High paraoxonase activity is associated with a significantly reduced risk of MACE and non-NMSC malignancies in white/European RA patients. The PON1 Q192R RR genotype had a significantly greater association with paraoxonase versus the QQ genotype, but had no significant association with MACE or non-NMSC malignancies.

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Filgotinib Modulates Inflammation-Associated Peripheral Blood Protein Biomarkers in Adults with Active Rheumatoid Arthritis and Prior Inadequate Response to Methotrexate

Rheumatol Ther. 2023;10(5):1335–1348 doi 10.1007/s40744-023-00583-9

This study by Tanaka, et al. shows that filgotinib reduces peripheral protein biomarkers associated with JAK/STAT signalling, inflammatory signalling, immune cell migration, and bone resorption in RA patients. Notably, filgotinib 200 mg significantly reduced IL-6, TNF, CXCL13 levels as early as Week 4.

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A JAK Inhibitor for Treatment of Rheumatoid Arthritis: The Baricitinib Experience

J. Clin. Med. 2023;12(13):4527 doi 10.3390/jcm12134527

This review by Taylor, et al. reviews the long-term safety and efficacy data for baricitinib. Results from several studies showed that baricitinib has greater efficacy and survival compared to TNF inhibitors, and that the rate of CDAI <10 for baricitinib-treated RA patients increased over the course of seven years. Data also showed that remission rates were higher in real-world evidence than in RCTs.

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