Clinical comparison of QOL and adverse events during postoperative adjuvant chemotherapy in outpatients with node-positive colorectal cancer or gastric cancer.

The aim of this study was to evaluate the quality of life (QOL) from the performance status (PS) and face scale (FS), and to compare adverse events (AEs) during chemotherapy in 28 patients with node-positive colorectal cancer (NP-CRC) and 15 patients with node-positive gastric cancer (NP-GC). The anticancer regimen consisted of 5-FU/LV+CPT-11 for NP-CRC and 5-FU+low-dose CDDP for NP-GC. Results were evaluated after completion of three courses. QOL evaluation revealed no significant differences between the two groups with respect to PS and FS. Among hematological AEs, grade 1/2 mild leucopenia was significantly more common in NP-CRC than NP-GC patients (p<0.05), while grade 1/2 mild thrombocytopenia was significantly more common in NP-GC than NP-CRC patients (p<0.05). Among non-hematological AEs, grade 1/2 mild neuropathy (olfactory nerve) was significantly more common in NP-CRC than NP-GC patients (p<0.05). The monthly cost for one course was approximately euro586.8 for NP-CRC patients and approximately euro181.8 for NP-GC patients. These results suggest that first-line postoperative outpatient adjuvant chemotherapy for NP-CRC and NP-GC shows no significant differences with respect to QOL, but both AEs and the cost are higher for NP-CRC than for NP-GC.