Effect of (Neo)adjuvant zoledronic acid on disease-free and overall survival in clinical stage II/III breast cancer.
Br J Cancer
; 107(1): 7-11, 2012 Jun 26.
Article
em En
| MEDLINE
| ID: mdl-22617128
ABSTRACT
BACKGROUND:
Despite neoadjuvant/adjuvant chemotherapy, women with resectable stage II/III breast cancer (BC) have high risk of recurrent disease. Recent data suggest that zoledronic acid (ZOL) therapy concurrent with adjuvant treatments may improve cancer-related outcomes in patients with BC.METHODS:
Disease-free survival (DFS; secondary end point) and overall survival (OS; tertiary end point) were evaluated in 119 women with stage II/III BC randomised to intravenous ZOL 4 mg every 3 weeks for 1 year or no ZOL (control) starting with the first chemotherapy cycle.RESULTS:
At 61.9 months' median follow-up, there was no significant difference in recurrence or survival between study arms. However, time to recurrence or death (DFS) was significantly different between subgroups defined by oestrogen receptor (ER) status (interaction P=0.010 for DFS and 0.025 for OS). Hazard ratios (HRs) for disease recurrence and death were significantly less among patients with ER-negative (ER(-)) tumours who received ZOL vs no ZOL (DFS HR=0.361, 95% confidence interval (CI) 0.148, 0.880; OS HR=0.375, 95% CI 0.143, 0.985).CONCLUSION:
ZOL administered with chemotherapy may improve DFS and OS in a subset of BC patients with ER(-) tumours. This study was not powered to compare subgroups of patients; thus, these findings should be considered hypothesis generating.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Mama
/
Difosfonatos
/
Conservadores da Densidade Óssea
/
Imidazóis
Tipo de estudo:
Clinical_trials
Limite:
Aged
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Female
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Humans
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Middle aged
Idioma:
En
Revista:
Br J Cancer
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Estados Unidos