Cognitive function in postmenopausal breast cancer patients one year after completing adjuvant endocrine therapy with letrozole and/or tamoxifen in the BIG 1-98 trial

被引:0
作者
Kelly-Anne Phillips
Julie Aldridge
Karin Ribi
Zhuoxin Sun
Alastair Thompson
Vernon Harvey
Beat Thürlimann
Fatima Cardoso
Olivia Pagani
Alan S. Coates
Aron Goldhirsch
Karen N. Price
Richard D. Gelber
Jürg Bernhard
机构
[1] The University of Melbourne,Peter MacCallum Cancer Centre
[2] Dana-Farber Cancer Institute,IBCSG Statistical Center
[3] IBCSG Coordinating Center,Ninewells Hospital
[4] University of Dundee,Breast Center
[5] Auckland City Hospital,Department of Medical Oncology
[6] Australian New Zealand Breast Cancer Trials Group,Oncology Institute of Southern Switzerland
[7] Kantonsspital,Department of Medicine
[8] Swiss Group for Clinical Cancer Research (SAKK),IBCSG Statistical Center, Frontier Science and Technology Research Foundation
[9] Jules Bordet Institute,IBCSG Statistical Center, Frontier Science and Technology Research Foundation
[10] Ospedale Italiano,Department of Medical Oncology
[11] International Breast Cancer Study Group,undefined
[12] University of Sydney,undefined
[13] European Institute of Oncology,undefined
[14] Oncology Institute of Southern Switzerland,undefined
[15] Dana-Farber Cancer Institute,undefined
[16] Dana-Farber Cancer Institute,undefined
[17] IBCSG Coordinating Center,undefined
[18] Inselspital,undefined
[19] Bern University Hospital,undefined
来源
Breast Cancer Research and Treatment | 2011年 / 126卷
关键词
Cognitive function; Breast cancer; Aromatase inhibitor; Tamoxifen; Letrozole; Quality of life;
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摘要
Endocrine therapy for breast cancer may affect cognition. The purpose of this study was to examine whether cognitive function improves after cessation of adjuvant endocrine therapy. Change in cognitive function was assessed in 100 postmenopausal breast cancer patients in the BIG 1-98 trial, who were randomized to receive 5 years of adjuvant tamoxifen or letrozole alone or in sequence. Cognitive function was evaluated by computerized tests during the fifth year of trial treatment (Y5) and 1 year after treatment completion (Y6). Cognitive test scores were standardized according to age-specific norms and the change assessed using the Wilcoxon signed-rank test. There was significant improvement in the composite cognitive function score from Y5 to Y6 (median of change = 0.22, effect size = 0.53, P < 0.0001). This improvement was consistent in women taking either tamoxifen or letrozole at Y5 (P = 0.0006 and P = 0.0002, respectively). For postmenopausal patients who received either adjuvant letrozole or tamoxifen alone or in sequence, cognitive function improved after cessation of treatment.
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页码:221 / 226
页数:5
相关论文
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