The results of a Bayesian network meta-analysis by Lee and Song showed that JAK inhibitors were more likely to achieve remission and LDA in DMARD-naive RA patients than MTX. However, there were no significant differences in remission rates nor LDA rates between the JAK inhibitors investigated.

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This study by Bergman, et al. showed that RA patients are significantly more likely to adhere to upadacitinib within the first 12 months of prescription versus adalimumab, baricitinib, and tofacitinib. There was also a significantly lower risk of discontinuation for upadacitinib versus the other treatment prescriptions.

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.

August 2023

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.

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.

July 2023

Tofacitinib treatment is associated with a significant improvement in CANDEN MRI scores of spinal inflammation in axSpA patients. This study by Østergaard, et al. also validates the CANDEN MRI scoring system as an approach for measuring axSpA-associated inflammatory lesions.

Kristensen, et al. used mediation modelling to show that tofacitinib indirectly improved fatigue symptoms via back pain and morning stiffness. This study was carried out using FACIT-F- and BASDAI Q1-based models to determine the relationship between these variables.

This single-centre study by Khan, et al. suggests that high-dose methotrexate (25 mg/week, subcutaneously) may be as efficacious as tofacitinib in patients with established RA who are DMARD naïve or have not received a therapeutic dose of DMARDs.

Pots hoc analysis of safety data in patients with RA at increased risk of CV events from the upadacitinib SELECT phase III RA clinical programme helps to contextualise the overall risk profile of upadacitinib.

April 2023

Findings from a post hoc analysis of ORAL Surveillance can help guide individualised benefit/risk assessment and clinical decision-making on treatment with tofacitinib, based on identification of subpopulations ‘at risk’.