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Abstract
The aim of this study was to evaluate the activity and safety of 5-fluorouracil (5-FU) / leucovorin (LV) and irinotecan as first- or second-line treatment in patients with advanced gastric adenocarcinoma. Treatment consisted of irinotecan 80 mg/m2 intravenously (i.v.), followed by LV 200 mg/m2 (i.v.) and 5-FU 450 mg/m2 as an i.v. bolus, administered weekly for 6 weeks, followed by a 2-week rest period. Thirty-one patients (23 chemo-naïve, 8 chemo-exposed) were enrolled. The overall response rate was 22.6% and the disease control rate was 38.7%. Among the patients who received the regimen as first-line treatment, objective response rate was 30.4% and the disease control rate was 52.1%. However, progression of the disease was recorded in all the patients receiving the combination as second-line chemotherapy. The median time to disease progression (TTP) was 4 months and the median duration of survival was 7 months. The median TTP was 6 months for patients treated with first-line chemotherapy and 2.5 for those who received study treatment as second line. Furthermore, the median survival duration was 8 months and 6 months, respectively. The most frequent grade 3 toxicity was febrile neutropenia. Grade 3 non-hematological toxicities were rare. There were no treatmentrelated deaths.
The combination of 5-FU/LV and irinotecan as first-line treatment was found to be well tolerated and effective in patients with advanced gastric cancer. Further investigation would be worthwhile, particularly in elderly or debilitated patients who cannot tolerate aggressive chemotherapy.