Survival correlation analysis
PD, tumors, intestinal type tumors
PRIMARY TUMOR, LIVER METASTASIS, METASTASIS, TUMORS
Sex, primary tumor site, ECOG performance status, pathological grade, Lauren classification, metastasis site, liver metastasis, previous treatment regimen, and number of chemotherapy lines were all included in the Cox univariate analysis for PFS and OS (Table 
Cox univariate analysis of PFS and OS.*HR: hazard ratioEight patients had liver metastasis, among whom 7 could be assessed; all 7 of these patients attained PR. Twenty-two patients had non-liver metastasis, among whom 21 could be assessed: 8 attained PR, 8 achieved SD, and 5 developed PD. The ORR in patients with liver metastasis and non-liver metastasis was 100% and 38.1%, respectively (Nine patients had intestinal type tumors by the Lauren classification; of these, 8 achieved PR and one attained SD. Twenty-one patients had diffuse, mixed, or unknown tumors. Nineteen of these 21 patients were able to be assessed: 7 achieved PR, 7 attained SD, and 5 developed PD. The ORR of intestinal type tumors was 88.9%, and that of diffuse/mixed/unknown tumors was 36.8% (
Kaplan–Meier curves for PFS and OS of subgroup analysis. PFS (A) and OS (B) curves comparing the two groups with liver metastatic or not; PFS (C) and OS (D) curves comparing the two groups with Lauren Classification of intestinal type or other types