期刊
CANCER
卷 101, 期 5, 页码 1072-1080出版社
WILEY
DOI: 10.1002/cncr.20433
关键词
congestive heart failure; historical controls; recurrence; retrieval; survival
类别
资金
- NCI NIH HHS [R01 CA054498, CA 42326, CA 54498] Funding Source: Medline
BACKGROUND. After randomized trials in the 1980s, doxorubicin (DOX) was added to dactinomycin plus vincristine as standard chemotherapy for patients who had Stage III Wilms tumor (WT) of favorable histology (FH). Double-agent chemotherapy was retained for patients with Stage 11 disease. In this study, the authors reevaluated the efficacy of DOX using extended follow-up and additional patients. METHODS. The relative risks (1111) (DOX vs. no DOX) of disease recurrence and mortality were estimated for patients with Stage II-III/FH WT who were enrolled in the third and fourth National Wilms Tumor Studies (NWTS-3 and NWTS-4). The risk of congestive heart failure (CHF) was estimated for all patients who received DOX. RESULTS. No statistically significant effects of DOX were found for patients with Stage 11 tumors. For patients with Stage III tumors, the 8 year recurrence-free survival (RFS) and overall survival (OS) rates for randomized patients on NWTS-3 were 84% and 89%, respectively, for patients who received DOX (n = 130) and 74% and 83%, respectively, for patients who did not receive DOX (n = 118). Including all patients with Stage III disease who received DOX (n = 678) and did not receive DOX (n = 138), the RRs of recurrence were 0.47 (P = 0.007) and 0.40 (P = 0.011), and local recurrence respectively, after adjustment for radiation therapy (RT) dose, whereas the RR of mortality adjusted for RT and study was 0.68 (P = 0.17). The 20-year risk of CHF after primary DOX treatment on NWTS-3 and NWTS-4 was 1.2%. CONCLUSIONS. The inclusion of data from nonrandomized patients yielded estimates of DOX treatment effects for Stage III/FH WT that were stronger, albeit more susceptible to bias, than reported previously. Despite a lower reported risk of CHF, conclusive evidence that frontline therapy with DOX definitively improves survival remains elusive. (C) 2004 American Cancer Society.
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