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- W2959354651 abstract "4097 Background: MGC is a chemosensitive tumour. According to the Norton-Simon hypothesis, a reduction of tumor burden could best be achieved by shortening the interval between the cycles, and the resistance might be overcome by switching from initial chemotherapy to a new, non cross-resistant one. We previously reported on the high efficacy of a new strategy using 2 sequential, non cross-resistant chemotherapy regimens in MGC (Cancer Chemother Pharmacol 11 Jan; 67 (1): 41-8). Aim of this study is to evaluate this therapeutic approach in a larger case series. Methods: 43 patients (pts) treated at our centre from November 04 to April 11 were included. All pts were chemo-naïve and received 4 cycles of TCF-dd (see reference above for doses) every 2 weeks. Subsequently and irrespective of their response, they received 4 cycles of COFFI (see reference above ) every 2 weeks. In both regimens pegfilgrastim 6 mg sc on day 3 was included. Results: Median age: 63; 74% male. PS 0-1. After the first regimen (TCF-dd) 43 pts were evaluable for response.We registered 3 CR, 27 PR, 7 SD, 5 PD and 1 not evaluable for an ORR at ITT of 70% (95% CI, 58-85). All pts proceeded to the second regimen (COFFI) and 40 pts were evaluable for response. The 3 CR observed after TCF-dd were maintained. Among the 27 pts with PR after TCF-dd, 2 achieved CR, 14 improved the response, 6 maintained PR, 3 progressed. Among the 7 pts with SD after TCF-dd, 1 achieved CR, 3 achieved PR, 2 progressed and 1 is not valuable. Among the 5 pts with PD after TCF-dd, 1 achieved CR, 4 achieved RP. After COFFI we observed 5 CR, 21 PR, 9 SD and 5 PD. The ORR in the 40 pts was 60% (95% CI, 50-80). Considering both regimen ORR was 93%. mTTP was 12.1 months (95% CI, 8,1-16,2). mOS was 16.1 months (95% CI, 12.7-21.6). At Dec '11, 4 out of 8 pts who achieved CR are alive and disease free. Most frequent G3-4 toxicities were: astenia (32%), neutropenia (35%), anemia (14%), neurotoxicity (21%). Conclusions: The study confirms that a sequential dose-dense strategy using TCF-dd followed by COFFI is feasible and highly effective and deserves to be tested in a randomized study which is on going." @default.
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- W2959354651 date "2012-05-20" @default.
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- W2959354651 title "Sequential chemotherapy with dose-dense docetaxel, cisplatin, folinic acid and 5-fluorouracil (TCF-dd) followed by oxaliplatin, folinic acid, 5-fluorouracil, and irinotecan (COFFI) in locally advanced or metastatic gastric cancer (MGC)." @default.
- W2959354651 doi "https://doi.org/10.1200/jco.2012.30.15_suppl.4097" @default.
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