Our study aims to investigate whether PI3K/mTOR dual inhibitor LY3023414 has synergistic effects with carboplatin in suppressing endometrial cancer (EC)…Combined treatment of LY3023414 and carboplatin synergistically inhibited proliferation, colony formation, promoted apoptosis of EC cells...LY3023414 had synergistic anti-tumor effects with carboplatin in HEC-1A subcutaneous xenograft which harbors PIK3CA mutation.