KW-2450 free base is an orally bioavailable inhibitor of insulin-like growth factor 1 receptor (IGF-1R) and insulin receptor (IR) tyrosine kinases with potential antineoplastic activity. IGF-1R/IR inhibitor KW-2450 free base selectively binds to and inhibits the activities of IGF-1R and IR, which may result in the inhibition of tumor cell proliferation and the induction of tumor cell apoptosis. IGF-R1 and IR tyrosine kinases, overexpressed in a variety of human cancers, play significant roles in the stimulation of cellular proliferation, oncogenic transformation, and suppression of apoptosis.

GSK1904529A 是 IGF-1R 和 IR 的选择性抑制剂，IC50 分别为 27 nM 和 25 nM。

Insulin efsitora alfa (LY-3209590) 是一种胰岛素受体 (insulin receptor，IR) 的选择性激动剂。Insulin efsitora alfa 是一种融合蛋白，由与人免疫球蛋白 G2 (IgG2) 片段可结晶 (Fc) 结构域融合人胰岛素受体 (IR) 激动剂组成，分子量为 64.1 kDa。Insulin efsitora alfa 耐受性良好，在糖尿病中有潜在的应用。