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Int J Clin Oncol. 2010 Jun;15(3):287-93. doi: 10.1007/s10147-010-0054-9. Epub 2010 Mar 10.

Comparison of combination chemotherapy with irinotecan and cisplatin regimen administered every 2 or 4 weeks in pretreated patients with unresectable or recurrent gastric cancer: retrospective analysis.

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  • 1Division of Gastrointestinal Oncology, Shizuoka Cancer Center, 1007 Shimonagakubo, Nagaizumi-cho, Sunto-gun, Shizuoka, 411-8777, Japan. t.sakamoto@scchr.jp

Abstract

BACKGROUND:

Efficacy and safety of irinotecan and cisplatin administration every 2 weeks (biweekly regimen) or 4 weeks (4-weekly regimen) in patients with pretreated unresectable or recurrent gastric cancer was retrospectively evaluated.

METHODS:

Study patients comprised two cohorts: cohort 1, consisting of 31 patients received chemotherapy on a 4-weekly regimen; and cohort 2, consisting of 32 patients received chemotherapy on a biweekly regimen. In cohort 1, patients received irinotecan (70 mg/m(2)) on days 1 and 15 and cisplatin (80 mg/m(2)) on day 1 every 4 weeks; in cohort 2, patients received irinotecan (60 mg/m(2)) on day 1 and cisplatin (30 mg/m(2)) on day 1 every 2 weeks.

RESULTS:

Response rates were for cohorts 1 and 2 were 26% (7/27) and 28% (7/25) in patients with measurable lesions, median progression-free survivals were 3.5 and 4.3 months, and median survival times after irinotecan and cisplatin initiation were 9.5 and 10.1 months, respectively. The incidence of grades 3 and 4 hematological toxicities in cohorts 1 and 2 were 74% and 44% for leukopenia, 81% and 53% for neutropenia, and 45% and 28% for anemia, respectively. Incidences of grades 3 and 4 nonhematological toxicities were 23% and 12% for nausea, 23% and 9% for vomiting, 19% and 12% for anorexia, and 6% and 6% for febrile neutropenia, respectively.

CONCLUSION:

Irinotecan plus cisplatin chemotherapy administered on a biweekly regimen was comparable in efficacy to a 4-weekly regimen and might be more feasible than the 4-weekly regimen.

PMID:
20217447
[PubMed - indexed for MEDLINE]
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