Wednesday, February 20, 2019

Baricitinib (Olumiant)

Mechanism of Action

Baricitinib inhibits Janus kinase (Jak) enzymes, which are intracellular enzymes involved in stimulating hematopoiesis and immune cell function through a signaling pathway. In response to extracellular cytokine or growth factor signaling, Jaks activate signal transducers and activators of transcription (STATs), which regulate gene expression and intracellular activity. Inhibition of Jaks prevents the activation of STATs and reduces serum IgG, IgM, IgA, and C-reactive protein


Rheumatoid arthritis: Treatment of adult patients with moderately to severely active rheumatoid arthritis who have had an inadequate response to one or more tumor necrosis factor antagonist therapies.

Limitation of use: Use of baricitinib in combination with other JAK inhibitors, biologic DMARDs, or with potent immunosuppressants such as azathioprine and cyclosporine is not recommended.

Bhopalwala. H

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