Japanese Journal of Clinical Oncology Advance Access originally published online on September 26, 2008
Japanese Journal of Clinical Oncology 2008 38(11):786-789; doi:10.1093/jjco/hyn096
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© The Author (2008). Published by Oxford University Press. All rights reserved
Chemotherapy for Gastric Cancer that Recurs After Adjuvant Chemotherapy with S-1
1 Department of Clinical Oncology
2 Department of Gastroenterology
3 Department of Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
For reprints and all correspondence: Kohei Shitara, Department of Clinical Oncology, Aichi Cancer Center Hospital, 1-1 Kanokoden, Chikusa-ku, Nagoya, 464-8681 Aichi, Japan. E-mail: kouheis0824{at}yahoo.co.jp
Received July 21, 2008; accepted August 20, 2008
We retrospectively analyzed the efficacy of chemotherapy in patients whose gastric cancer recurred after adjuvant chemotherapy with S-1. A total of 51 patients were evaluated. Twenty-one patients received S-1-containing chemotherapy as first-line treatment after recurrence [cohort A: S-1 plus cisplatin (n = 10), S-1 monotherapy (n = 7), S-1 plus irinotecan (n = 3) and S-1 plus docetaxel (n = 1)]. The other 30 patients received a non-S-1-containing regimen [cohort B: paclitaxel or docetaxel (n = 22), irinotecan plus cisplatin (n = 6) and other drugs (n = 2)]. No objective responses occurred in cohort A, while five patients achieved a partial response in cohort B (response rate, 0 versus 16%; P = 0.04). Median progression-free survival was significantly longer in cohort B than in cohort A (4.3 versus 2.3 months, P = 0.02). S-1-containing chemotherapy does not appear to be effective in patients whose gastric cancer recurs after adjuvant S-1 chemotherapy. Other chemotherapeutic agents should be evaluated in this setting.
Key Words: adjuvant chemotherapy gastric cancer recurrence S-1