期刊
CANCER
卷 101, 期 10, 页码 2170-2176出版社
WILEY
DOI: 10.1002/cncr.20594
关键词
5-fluorouracil; leucovorin; irinotecan; oxaliplatin; colorectal carcinoma; gastrointestinal toxicity; treatment related mortality
类别
BACKGROUND. Intergroup Trial N9741 evaluated 5-fluorouracil (5-FU)/leucovorin (LV) administered in conjunction with either irinotecan or oxaliplatin in the first-line treatment of advanced colorectal carcinoma (CRC). The current report describes two treatment arms that were withdrawn from the protocol due to unexpected treatment-related toxicities and a high mortality rate. The complications observed in these arms highlight the importance of aggressive and immediate supportive care in the management of digestive toxicity. METHODS. In Trial N9741, patients were randomly assigned to receive one of the following six regimens: 1) irinotecan plus bolus 5-FU/LV (Arm A); 2) sequential irinotecan plus bolus 5-FU/LV (Arm B); 3) bolus 5-FU/LV only (Mayo Clinic regimen; Arm D); 4) oxaliplatin plus bolus 5-FU/LV (Arm E); 5) oxaliplatin plus infusional 5-FU/LV (Arm F); or 6) oxaliplatin plus irinotecan (Arm G). In the current study, the authors investigated treatment-related toxicity in patients who received either of the two combination regimens containing daily bolus 5-FU (i.e., patients in Arm B or Arm E). RESULTS. Sixty-one and 47 patients were enrolled in Arm B and Arm E, respectively. Diarrhea and neutropenia were the most common toxicities in both groups. Five patients in Arm B (8.2%) and 4 patients in Arm E (8.5%) died within 60 days of study entry. All fatal toxicities occurred within 15 days of treatment administration, and all deaths were associated with the simultaneous occurrence of multiple symptoms, which were dominated by Grade 3 diarrhea. CONCLUSIONS. Combination regimens containing daily bolus 5-FU/LV and oxaliplatin or irinotecan can be associated with severe gastrointestinal toxicity and high mortality rates. Therefore, the authors recommend the use of more tolerable infusional 5-FU-based regimens in the treatment of metastatic CRC. Cancer 2004; 101:2170-6. (C) 2004 American Cancer Society.
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