4.7 Article

Phase II study of docetaxel and S-1 combination therapy for advanced or recurrent gastric cancer

Journal

CLINICAL CANCER RESEARCH
Volume 12, Issue 11, Pages 3402-3407

Publisher

AMER ASSOC CANCER RESEARCH
DOI: 10.1158/1078-0432.CCR-05-2425

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Purpose: To evaluate the efficacy and toxicity of docetaxel in combination with a novel oral 5-fluorouracil analogue S-1 for patients with advanced or recurrent gastric cancer. Experimental Design: Patients with advanced or recurrent adenocarcinoma of the stomach and up to one previous chemotherapy regimen were treated with i.v. docetaxel 40 mg/m(2) on day 1 and oral S-1 80 mg/m(2)/d on days 1 to 14 every 3 weeks. Results: Forty-eight patients (median age, 65 years; range, 25-75 years) received a total of 272 treatment cycles (median, 4; range, 1-17). No complete responses and 27 partial responses were observed for an overall response rate of 56.3% [95% confidence interval (95% Cl), 38-66%]. Eighteen patients (37.5%) had stable disease and three patients (6.3%) had progressive disease as best response. The tumor control rate (complete response + partial response + stable disease) was 93.8% (95% Cl, 83-98%). Median overall survival was 14.3 months (95% Cl, 10.7-20.3 months) and median time to tumor progression was 7.3 months (95% Cl, 4.3-10.0 months). The most common grade 3 to 4 hematologic toxicities were neutropenia (58.3%), leukopenia (41.7%), febrile neutropenia (8.3%), and anemia (8.3%). The most common grade 3 nonhematologic toxicities included anorexia (14.6%), stomatitis (8.3%), and nausea (6.3%). No grade 4 nonhematologic toxicities were reported and all treatment-related toxicities were resolved. Conclusion: Docetaxel/S-1 combination is highly active and well tolerated in advanced or recurrent gastric cancer. Further investigation in randomized studies is warranted.

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