“…PTX and 5-FU are attractive options because of their distinct mechanisms of action, nonoverlapping toxicity, and potential synergy. Many studies have illustrated that PTX combined with 5-FU shows efficacy and tolerability for the treatment of certain solid tumors, particularly primary/metastatic breast carcinoma, drug-refractory ovarian cancers, and advanced/recurrent/metastatic gastric cancer [ 7 , 8 , 9 , 10 , 11 ]. Patients in these studies were treated with different dosages or routes: PTX was administered weekly, biweekly, or triweekly, while 5-FU was administered by bolus injection or continuous infusion with or without other chemotherapeutics in chemotherapy or a neoadjuvant or adjuvant setting [ 12 , 13 , 14 , 15 ].…”