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  • Title: Combination chemotherapy with granulocyte-macrophage-colony stimulating factor in patients with locoregional and metastatic gastric adenocarcinoma.
    Author: Partyka S, Dumas P, Ajani J.
    Journal: Cancer; 1999 Jun 01; 85(11):2336-9. PubMed ID: 10357402.
    Abstract:
    BACKGROUND: A combination of etoposide, 5-fluorouracil, and folinic acid (ELF) remains popular for the treatment of patients with gastric carcinoma and has been reported to result in a response rate of up to 40% with good patient tolerance. The authors elected to add granulocyte-macrophage-colony stimulating factor (GM-CSF) to ELF to determine whether the response rate could be increased in patients with untreated advanced gastric carcinoma. METHODS: Previously untreated patients with measurable metastatic tumor were studied. Outpatient therapy was comprised of etoposide, 120 mg/m2 intravenously (i.v.), on Days 1-3; 5-fluorouracil, 500 mg/m2 i.v., on Days 1-3; and folinic acid, 300 mg/m2 i.v., on Days 1-3. Courses were repeated every 21 days. GM-CSF (at a dose of 250 microg/m2/day for 14 days from Day 4) was added after the first course of ELF if patients developed Grade 4 neutropenia in a previous course. RESULTS: Thirty patients were enrolled and 29 were evaluable for response. Four patients (14%) achieved a partial response (median duration of response, 6.5 months). The median duration of survival was 7.8 months. Grade 4 neutropenia occurred in 16 patients who then received GM-CSF. A similar rate of neutropenic fever was observed in courses both with or without GM-CSF (15% in courses without GM-CSF and 16% in courses with GM-CSF); however, a higher nadir absolute granulocyte count (1300 cells/microL) occurred in courses with GM-CSF compared with courses without GM-CSF (300 cells/microL). CONCLUSIONS: The ELF regimen resulted in a much lower response rate than reported in the literature. The attempt to improve the efficacy of this regimen by the addition of GM-CSF did not prove successful. The authors believe this regimen cannot be recommended for the treatment of patients with advanced gastric carcinoma outside of a protocol setting.
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