Upadacitinib api

Upadacitinib is a JAK1 inhibitor (IC50= 47 nM). It is selective for JAK1 over JAK3 and tyrosine kinase 2 (Tyk2; IC50s = 2,304 and 4,690 nM, respectively), as well as a panel of 83 additional kinases at 1 μM, but does inhibit JAK2, Rho-associated kinase I (ROCK1), and ROCK2 (IC50s = 120, 920, and 430 nM, respectively). Upadacitinib decreases cytokine-induced STAT phosphorylation in a variety of human cells with IC50values ranging from 1.6 to 649 nM. It reducesM. tuberculosis-induced paw swelling and bone erosion in a rat model of arthritis when administered at doses of 1, 3, and 10 mg/kg twice per day for 17 days. Formulations containing upadacitinib have been used in the treatment of rheumatoid arthritis.
Upadacitinib was discovered by AbbVie scientists, RINVOQ is a JAK inhibitor that is being studied in several immune-mediated inflammatory diseases. In human leukocyte cellular assays, RINVOQ inhibited cytokine-induced STAT phosphorylation mediated by JAK1 and JAK1/JAK3 more potently than JAK2/JAK2 mediated STAT phosphorylation. Upadacitinib (RINVOQ) received FDA approval in 2019 for the treatment of moderate to severe RA.