期刊
CLINICAL CANCER RESEARCH
卷 18, 期 17, 页码 4841-4849出版社
AMER ASSOC CANCER RESEARCH
DOI: 10.1158/1078-0432.CCR-11-3310
关键词
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类别
资金
- Amgen Inc.
- Novartis
- Chugai Pharmaceutical Co Ltd
- Nippon Boehringer Ingelheim Co Ltd
- Novartis Pharma KK
- Janssen Pharmaceutical K. K,
- Takeda Bio Development Center Limited
- Geron
- Genentech
- Amgen
Purpose: Denosumab was shown to be superior to zoledronic acid in preventing skeletal related events (SRE) in patients with breast cancer and bone metastases in a randomized, double-blind phase III study. We evaluated further results from this study related to skeletal complications and health-related quality of life (HRQoL). Experimental Design: Patients were randomized 1: 1 to receive subcutaneous denosumab 120 mg (n = 1,026) and intravenous placebo, or intravenous zoledronic acid 4 mg (n = 1,020) and subcutaneous placebo every 4 weeks. Analyses reported here include the proportion of patients with one or multiple on-study SREs, time to first radiation to bone, time to first SRE or hypercalcemia of malignancy, and change in HRQoL (functional assessment of cancer therapy-general). Results: Fewer patients receiving denosumab than zoledronic acid had an on-study SRE (31% vs. 36%, P = 0.006). The incidence of first radiation to bone was 12% (n = 123) with denosumab versus 16% (n = 162) with zoledronic acid. Denosumab prolonged the time to first radiation to bone by 26% versus zoledronic acid (HR, 0.74; 95% confidence interval [CI], 0.59-0.94, P = 0.012) and prolonged the time to first SRE or hypercalcemia of malignancy by 18% (HR, 0.82; 95% CI, 0.70-0.95; P = 0.007). Ten percent more patients had a clinically meaningful improvement in HRQoL with denosumab relative to zoledronic acid, regardless of baseline pain levels. Conclusions: Denosumab was superior to zoledronic acid in reducing bone-related complications of metastatic breast cancer and maintained HRQoL, providing an efficacious, well-tolerated treatment option for patients with bone metastases from breast cancer. Clin Cancer Res; 18(17); 4841-9. (C) 2012 AACR.
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