March 2024

Abatacept inhibits inflammation and onset of rheumatoid arthritis in individuals at high risk (ARIAA): A randomised, international, multicentre, double-blind, placebo-controlled trial

Lancet 2024;403(10429):850–859 doi 10.1016/S0140-6736(23)02650-8

This study by Rech, et al. shows that 6-month treatment with abatacept was associated with a decrease in MRI inflammation, clinical symptoms, and risk of RA development in participants at high risk. The effects of the intervention persist through a 1-year drug-free observation phase.

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June 2023

Baricitinib Improves Bone Properties and Biomechanics in Patients with Rheumatoid Arthritis – Results of the Prospective Interventional BARE BONE Trial

Arthritis Rheumatol. 2023 doi 10.1002/art.42617 Epub ahead of print

The results from Simon, et al. show that baricitinib treatment correlates with improvements in bone stiffness. Further improvements were also observed at the end of Week 52, with an increase in estimated failure load and no measurable progression in bone erosion being reported.

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March 2020

JAK Inhibition Increases Bone Mass in Steady state Conditions and Ameliorates Pathological Bone Loss by Stimulating Osteoblast Function

Sci Transl Med 2020;12(530):pii: eaay4447

JAKi significantly increased osteoblast function but showed no direct effects on osteoclasts.JAK signalling has emerged as an important therapeutic target for inflammatory disease, and the immunomodulation of JAK inhibition is well defined. Less well understood is the influence of this new class of drugs on bone homeostasis. This is important, as cytokine dysregulation triggers bone loss, and periarticular erosions contribute to the pathogenesis of RA. This study investigated the effect of BARI ...

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