Arzoxifene for prevention of fractures and invasive breast cancer in postmenopausal women
Journal article
Cummings, Steven R., McClung, Michael R., Reginster, Jean-Yves, Cox, David, Mitlak, Bruce, Stock, John, Amewou-Atisso, Messan, Powles, Trevor, Miller, Paul, Zanchetta, Jose Ruben and Christiansen, Claus. (2011). Arzoxifene for prevention of fractures and invasive breast cancer in postmenopausal women. Journal of Bone and Mineral Research. 26(2), pp. 397 - 404. https://doi.org/10.1002/jbmr.191
Authors | Cummings, Steven R., McClung, Michael R., Reginster, Jean-Yves, Cox, David, Mitlak, Bruce, Stock, John, Amewou-Atisso, Messan, Powles, Trevor, Miller, Paul, Zanchetta, Jose Ruben and Christiansen, Claus |
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Abstract | Arzoxifene is a selective estrogen receptor modulator (SERM) that has been shown to be more potent in preclinical testing than currently available agents. Its effects on clinical outcomes are not known. In a randomized, blinded trial, women aged 60 to 85 years with osteoporosis, defined as a femoral neck or lumbar spine bone mineral density T-score of −2.5 or less or a vertebral fracture, and women with low bone mass, defined as a bone density T-score of −1.0 or less and above −2.5, were assigned to arzoxifene 20 mg or placebo daily. The primary endpoints were new vertebral fracture in those with osteoporosis and invasive breast cancer in the overall population. After 3 years, the cumulative incidence of vertebral fractures in patients with osteoporosis was 2.3% lower in the arzoxifene group than in the placebo group, a 41% relative risk reduction [95% confidence interval (CI) 0.45–0.77, p < .001]. In the overall population, the cumulative incidence of invasive breast cancer over 4 years was reduced by 1.3%, with a 56% relative reduction in risk (hazard ratio = 0.44, 95% CI 0.26–0.76, p < .001); there was no significant decrease in nonvertebral fracture risk. Arzoxifene increased the cumulative incidence of venous thromboembolic events by 0.7%, with a 2.3-fold relative increase (95% CI 1.5–3.7). Like other SERMs, arzoxifene decreased vertebral fractures and invasive breast cancer while the risk of venous thromboembolic events increased. |
Keywords | osteoporosis; fracture; vertebral fracture; breast cancer; arzoxifene; serms; randomized; controlled trial |
Year | 2011 |
Journal | Journal of Bone and Mineral Research |
Journal citation | 26 (2), pp. 397 - 404 |
Publisher | American Society for Bone and Mineral Research |
ISSN | 0884-0431 |
Digital Object Identifier (DOI) | https://doi.org/10.1002/jbmr.191 |
Page range | 397 - 404 |
Research Group | Institute for Health and Ageing |
Publisher's version | File Access Level Controlled |
Place of publication | United States of America |
https://acuresearchbank.acu.edu.au/item/858x6/arzoxifene-for-prevention-of-fractures-and-invasive-breast-cancer-in-postmenopausal-women
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