In vitro
Ruxolitinib (INCB-018424) is a potent, orally available, selective inhibitor of both JAK1 and JAK2 of the JAK-STAT signaling pathway, and INCB018424 (Ruxolitinib) inhibit Jak1, Jak2, and Jak3 with IC50 of 3 nM, 5 nM and 332 nM, respectively. Ruxolitinib (INCB-018424) is developed to target the constitutive activation of the JAK-STAT pathway in patients with myeloproliferative neoplasms (MPNs). Ruxolitinib (Jakafi; Incyte) is a small-molecule inhibitor of JAK1/2 that has proved to be effective at reducing splenomegaly and ameliorating symptoms in myeloproliferative neoplasms.