TY - JOUR T1 - Phase I Study of Combination Therapy with S-1 and Weekly Docetaxel for Advanced Gastric Cancer JF - Anticancer Research JO - Anticancer Res SP - 2657 LP - 2665 VL - 27 IS - 4C AU - TOMOHIRO OZAKI AU - KENJI TAMURA AU - TAROH SATOH AU - TAKAYASU KURATA AU - TOSHIO SHIMIZU AU - MASAKI MIYAZAKI AU - ISAMU OKAMOTO AU - KAZUHIKO NAKAGAWA AU - MASAHIRO FUKUOKA Y1 - 2007/07/01 UR - http://ar.iiarjournals.org/content/27/4C/2657.abstract N2 - Background: The primary objective of this study was to determine the maximum tolerated dose (MTD), the toxicity profile and the recommended dose (RD) for phase II of a combination of S-1 and weekly administration of docetaxel. Patients and Methods: Patients with histologically diagnosed recurrent or unresectable locally advanced gastric cancer were enrolled. A fixed oral dose of 80 mg/m2 S-1 was given for 3 weeks. Docetaxel was infused intravenously on day 1, 8 and 15, repeated every 5 weeks. A pharmacokinetic study was also performed. Results: A total of 14 patients were enrolled. One dose-limiting toxicity (DLT) (grade 3 diarrhea with febrile neutropenia) occurred at level 2. DLTs occurred in 3/5 patients at level 3, (grade 3 stomatitis, with febrile neutropenia or continuous grade 4 neutropenia). The pharmacokinetic study suggested no drug interactions. Overall response and disease control rates were 20% and 80%, respectively. The response rate at the RD (level 2) was 50%. Overall survival was 9.4 months. Conclusion: RD was level 2 (80 mg/m2 of S-1 for 3 weeks and 20 mg/m2 of docetaxel on day 1, 8 and 15, every 5 weeks). Dose intensities of S-1 and docetaxel were 48 mg/m2/week and 12 mg/m2/week, respectively. This regimen showed promising activity for advanced gastric cancer. ER -