Baricitinib phosphate (LY3009104 phosphate，INCB028050 phosphate)，又称巴瑞克替尼磷酸盐，是一种选择性、ATP竞争性、可口服的JAK1/2抑制剂，IC₅₀值为5.9 nM和5.7 nM，对JAK3和Tyk2抑制活性较低，对c-Met和Chk2没有抑制作用。Baricitinib常用于治疗成人中中度至重度的活动性类风湿关节炎。

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