marginally significantP = 0.056
Compared with AZD8931 alone, the difference was marginally significant for SUM149 tumors ( P = 0.056) and FC-IBC-02 tumors ( P = 0.07).Finally, we examined the expression of total EGFR, HER2, HER3, phosphorylated EGFR, phosphorylated HER2, and phosphorylated HER3 in SUM149 xenografted tumors by immunohistochemistry.