Xiaoaiping injection combined with chemotherapy could significantly decrease tumor markers, including carcinoembryonic antigen (CEA) [MD = -11.64, <i>p</i> < 0.00001]; CA199 [MD = -33.57, <i>p</i> = 0.02]; CA242 [MD = -20.66, <i>p</i> < 0.00001]; CA125 [MD = -12.50, <i>p</i> = 0.0005]. Here, CEACAM5 is linked to neoplasm.