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- Title
Fluorouracil plus levamisole as effective adjuvant therapy after resection of stage III colon carcinoma: a final report.
- Authors
Moertel CG; Fleming TR; Macdonald JS; Haller DG; Laurie JA; Tangen CM; Ungerleider JS; Emerson WA; Tormey DC; Glick JH; Veeder MH; Mailliard JA; Moertel, C G; Fleming, T R; Macdonald, J S; Haller, D G; Laurie, J A; Tangen, C M; Ungerleider, J S; Emerson, W A
- Abstract
<bold>Objective: </bold>To determine the effectiveness of two adjuvant therapy regimens in improving surgical cure rates in stage III (Dukes stage C) colon cancer.<bold>Design: </bold>Randomized, concurrently controlled clinical trial.<bold>Setting: </bold>Major cancer centers, universities, and community clinics affiliated with the North Cancer Treatment Group, the Southwest Oncology Group, and the Eastern Cooperative Oncology Group.<bold>Patients: </bold>Those who had had curative-intent resections of stage III colon cancer in the previous 1 to 5 weeks.<bold>Intervention: </bold>Patients were assigned to observation only, to levamisole alone (50 mg orally three times/d for 3 days, repeated every 2 weeks for 1 year), or to this regimen of levamisole plus fluorouracil (450 mg/m2 body surface area intravenously daily for 5 days and then, beginning at 28 days, weekly for 48 weeks).<bold>Measurements: </bold>Rates of cancer recurrence and death. Early- and late-treatment side effects.<bold>Results: </bold>With all 929 eligible patients able to be followed for 5 years or more (median follow-up, 6.5 years), fluorouracil plus levamisole reduced the recurrence rate by 40% (P < 0.0001) and the death rate by 33% (P = 0.0007). Levamisole reduced the recurrence rate by only 2% and the death rate by only 6%. With few exceptions, toxicity was mild and patient compliance was excellent. No evidence of late side effects was seen.<bold>Conclusion: </bold>Fluorouracil plus levamisole is tolerable adjuvant therapy to surgery; it has been confirmed to substantially increase cure rates for patients with high-risk (stage III) colon cancer. It should be considered standard treatment for all such patients not entered into clinical trials.
- Publication
Annals of Internal Medicine, 1995, Vol 122, Issue 5, p321
- ISSN
0003-4819
- Publication type
journal article
- DOI
10.7326/0003-4819-122-5-199503010-00001