ルキソリチニブ

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Danger

• 危険有害性情報

  H302：飲み込むと有害

• 注意書き

  P202：全ての安全注意を読み理解するまで取り扱わないこ と。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

ルキソリチニブ 化学特性,用途語,生産方法

• 効能

  抗悪性腫瘍薬, ヤヌスキナーゼ (JAK) 阻害薬

• 説明

  In November 2011, the U.S. FDA approved ruxolitinib (INCB018424) for the treatment of patients with intermediate or high-risk myelofibrosis. Ruxolitinib is an ATP-competitive inhibitor of JAK1 and JAK2 (IC_50's of 3.3±1.2 nM and 2.8±1.2 nM, respectively) and inhibition occurs regardless of the JAK2V617F mutational status. Ruxolitinib is a moderately potent inhibitor of the related JAK, TYK2 (IC₅₀=19±3.2 nM) but is selective versus JAK3 (IC₅₀=428±243 nM). It was also selective versus a panel of 26 other kinases at concentrations approximately 100-fold the IC₅₀ of JAK1 and JAK2. Inhibition of JAK1 and JAK2 downregulates the JAK-signal transducer and activator of transcription (STAT) pathway, inhibiting myeloproliferation, inducing apoptosis, and reducing numerous cytokine plasma levels.

• 特性

  Class: non-receptor tyrosine kinase
  Treatment: MF, PV, cGVHD
  Oral bioavailability >95%
  Elimination half-life = 3 h
  Protein binding = 97%

• 使用

  Ruxolitinib is a selective Janus tyrosine kinase (JAK1 and JAK2) inhibitor used in the treatment of myeloproliferative neoplasms and psoriasis.

• 適応症

  The JAK family includes four isoforms, JAK1, JAK2, JAK3, and tyrosine kinase (TYK2). Ruxolitinib (Jakafi(R), Incyte Corp.) was the first approved JAK inhibitor, which inhibits both JAK1 and JAK2, used for the treatment of different types of myelofibrosis. Tofacitinib (Xeljanz(R), Pfizer) was approved by FDA as a JAK3-selective inhibitor for the treatment of rheumatoid arthritis and is one of the only two FDA-approved kinase inhibitors for non-oncological indications.

• 定義

  ChEBI: A pyrazole substituted at position 1 by a 2-cyano-1-cyclopentylethyl group and at position 3 by a pyrrolo[2,3-d]pyrimidin-4-yl group. Used as the phosphate salt for the treatment of patients with intermediate or high-risk myelofibrosis, includ ng primary myelofibrosis, post-polycythemia vera myelofibrosis and post-essential thrombocythemia myelofibrosis.

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