PURPOSE: To report, from Cancer and Leukemia Group B Protocol 9082, the impact of high-dose cyclophosphamide, cisplatin, and BCNU (HD-CPB) vs. intermediate-dose CPB (ID-CPB) on the ability to start and complete the planned course of local-regional radiotherapy (RT) for women with breast cancer involving >or=10 axillary nodes. METHODS AND MATERIALS: From 1991 to 1998, 785 patients were randomized. The HD-CPB and ID-CPB arms were balanced regarding patient characteristics. The HD-CPB and ID-CPB arms were compared on the probability of RT initiation, interruption, modification, or incompleteness. The impact of clinical variables and interactions between variables were also assessed. RESULTS:Radiotherapy was initiated in 82% (325 of 394) of HD-CPB vs. 92% (360 of 391) of ID-CPB patients (p = 0.001). On multivariate analyses, RT was less likely given to patients who were randomized to HD treatment (odds ratio [OR] = 0 .38, p < 0.001), older (p = 0.005), African American (p = 0.003), postmastectomy (p = 0.02), or estrogen receptor positive (p = 0.03). High-dose treatment had a higher rate of RT interruption (21% vs. 12%, p = 0.001, OR = 2.05), modification (29% vs. 14%, p = 0.001, OR = 2.46), and early termination of RT (9% vs. 2%, p = 0.0001, OR = 5.35), compared with ID. CONCLUSION: Treatment arm significantly related to initiation, interruption, modification, and early termination of RT. Patients randomized to HD-CPB were less likely to initiate RT, and of those who did, they were more likely to have RT interrupted, modified, and terminated earlier than those randomized to ID-CPB. The observed lower incidence of RT usage in African Americans vs. non-African Americans warrants further study.
RCT Entities:
PURPOSE: To report, from Cancer and Leukemia Group B Protocol 9082, the impact of high-dose cyclophosphamide, cisplatin, and BCNU (HD-CPB) vs. intermediate-dose CPB (ID-CPB) on the ability to start and complete the planned course of local-regional radiotherapy (RT) for women with breast cancer involving >or=10 axillary nodes. METHODS AND MATERIALS: From 1991 to 1998, 785 patients were randomized. The HD-CPB and ID-CPB arms were balanced regarding patient characteristics. The HD-CPB and ID-CPB arms were compared on the probability of RT initiation, interruption, modification, or incompleteness. The impact of clinical variables and interactions between variables were also assessed. RESULTS: Radiotherapy was initiated in 82% (325 of 394) of HD-CPB vs. 92% (360 of 391) of ID-CPBpatients (p = 0.001). On multivariate analyses, RT was less likely given to patients who were randomized to HD treatment (odds ratio [OR] = 0 .38, p < 0.001), older (p = 0.005), African American (p = 0.003), postmastectomy (p = 0.02), or estrogen receptor positive (p = 0.03). High-dose treatment had a higher rate of RT interruption (21% vs. 12%, p = 0.001, OR = 2.05), modification (29% vs. 14%, p = 0.001, OR = 2.46), and early termination of RT (9% vs. 2%, p = 0.0001, OR = 5.35), compared with ID. CONCLUSION: Treatment arm significantly related to initiation, interruption, modification, and early termination of RT. Patients randomized to HD-CPB were less likely to initiate RT, and of those who did, they were more likely to have RT interrupted, modified, and terminated earlier than those randomized to ID-CPB. The observed lower incidence of RT usage in African Americans vs. non-African Americans warrants further study.
Authors: Bernard Fisher; Jong-Hyeon Jeong; Stewart Anderson; John Bryant; Edwin R Fisher; Norman Wolmark Journal: N Engl J Med Date: 2002-08-22 Impact factor: 91.245
Authors: Kevin M Gorey; Isaac N Luginaah; Kendra L Schwartz; Karen Y Fung; Madhan Balagurusamy; Emma Bartfay; Frances C Wright; Uzoamaka Anucha; Renee R Parsons Journal: Breast Cancer Res Treat Date: 2008-03-11 Impact factor: 4.872
Authors: L E Damon; W W Hu; K E Stockerl-Goldstein; K G Blume; J L Wolf; E Gold; G R Cecchi; D Irwin; J Glaspy; I Territo; W Miller; J R Mason; C A Linker Journal: Biol Blood Marrow Transplant Date: 2000 Impact factor: 5.742
Authors: J G Canto; J J Allison; C I Kiefe; C Fincher; R Farmer; P Sekar; S Person; N W Weissman Journal: N Engl J Med Date: 2000-04-13 Impact factor: 91.245
Authors: Bernard Fisher; Stewart Anderson; John Bryant; Richard G Margolese; Melvin Deutsch; Edwin R Fisher; Jong-Hyeon Jeong; Norman Wolmark Journal: N Engl J Med Date: 2002-10-17 Impact factor: 91.245
Authors: Marta Moreno; Ignacio Azinovic; José María López-Picazo; José Manuel Aramendía; Rafael Martínez-Monge; César Beltrán; José Javier Aristu; Joseba Rebollo; Salvador Martín Algarra; Oscar Fernández; Antonio Brugarolas Journal: Am J Clin Oncol Date: 2002-08 Impact factor: 2.339