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Randomized phase II study of sequential docetaxel and irinotecan with 5-fluorouracil/folinic acid (leucovorin) in patients with advanced gastric cancer: the GATAC trial.

Author(s): Gubanski M, Johnsson A, Fernebro E, Kadar L, Karlberg I, Flygare P, Berglund A, Glimelius B, Lind PA, Gastric Cancer Taxotere vs. Campto Trial (GATAC) Study Group

Affiliation(s): Department of Oncology, Karolinska University Hospital at Sodersjukhus, Sjukhusbacken 10, SE-118 83, Stockholm, Sweden.

Publication date & source: 2010-08, Gastric Cancer., 13(3):155-61. Epub 2010 Sep 5.

Publication type: Research Support, Non-U.S. Gov't

BACKGROUND: The optimal chemotherapy in patients with advanced gastric carcinoma (GC) is yet to be determined. We compared sequential administration of docetaxel and irinotecan, both in combination with infused 5-fluorouracil/leucovorin (5-Fu/Lv), and randomly assigned patients to start with either of the two. METHODS: Patients with previously untreated locally advanced or metastatic GC and with measurable lesions (response evaluation criteria in solid tumors; RECIST) were randomly assigned to start with docetaxel 45 mg/m(2) (arm T) or irinotecan 180 mg/m(2) (arm C) with bolus/44-h infusion of 5-Fu/Lv (day 1 every 2 weeks). After four courses, there was a prescheduled crossover to the alternative regimen for four additional courses. RESULTS: Eighty-one patients were randomized and 78 started treatment. Complete and partial responses were seen in 31 (40%) patients after 8 weeks and in 32 (41%) after 16 weeks, with similar results in both study arms. The median overall survival (OS) was 11.5 and 10.6 months in arms T and C, respectively (P = 0.3). The two schedules were feasible and did not differ in the overall rate of severe adverse events (SAEs). CONCLUSION: This is the first randomized comparison of two of the newer cytostatic drugs in GC therapy. No differences favoring either arm T or arm C were found with respect to response rate, OS, or toxicity. The median OS of 11 months indicates that sequential administration of the two combinations is effective and is similar to triple combinations. Thus, comparable efficacy to platinum combinations appears to be obtained with newer, less toxic regimens when given sequentially.

Page last updated: 2010-10-05

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