Animal experiment:

The mice are treated with E-7386 (50 mg/kg, orally, BID) for three weeks. Tumor diameters are measured with digital calipers, and the tumor volume in mm3 is calculated. Immunohistochemical (IHC) analysis is evaluated for tumor-infiltrating T cells[1].

E-7386 is an orally active CBP/beta-catenin modulator.

E-7386 is an orally active CBP/beta-catenin modulator which can induce T cells infiltration into tumor and enhance antitumor activity of anti-PD-1 mAb in Wnt1 tumor syngeneic mice model. E-7386 shows significant antitumor activity in Wnt1 model. Infiltration of T cells is limited in vehicle control group, but T cell infiltration into tumors is clearly observed in E-7386 treatment group[1].

[1]. Yusaku Hori, et al. E7386, an orally active CBP/beta-catenin modulator, induces T cells infiltration into tumor and enhances antitumor activity of anti-PD-1 mAb in Wnt1 tumor syngeneic mice model. Cancer Res 2017;77(13 Suppl):Abstract nr 5172.