Capecitabine is an oral fluoropyrimidine that has been shown to be effective in the treatment of metastatic gastric and colorectal cancer patients. On the basis of capecitabine-based chemotherapy which is accepted as a standard regimen in gastric cancer, we will perform the phase I/II study with all-oral regimen of RAD001 with capecitabine for these refractory gastric cancer patients.