2016年6月6日 讯 /生物谷BIOON/ --近日,发表在2016年美国临床肿瘤学会年会上的一项研究报告中,来自麻省总医院的研究人员通过研究发现,早期乳腺癌患者的激素疗法持续时间加倍(从5年到10年)或可降低乳腺癌的复发风险及另一侧乳房患癌的风险。本文研究中研究者主要研究了激素受体阳性疗法治疗早期乳腺癌患者的效果,相关研究同时也刊登在了国际杂志New England Journal of Medicine上。
绝经女性利用药物来曲唑治疗10年替代5年周期的疗法,相比安慰剂治疗组而言,或可降低34%的乳腺癌复发风险及另一侧乳腺癌症的风险。药物来曲唑是一种芳香酶抑制剂,其可以有效阻断绝经女性机体中雌激素的产生。研究数据显示,长期采用这种广泛可用的疗法或可降低个体癌症复发的风险,并且抑制第二种癌症产生。
研究者Paul Goss指出,早期激素受体阳性的乳腺癌患者往往会面对不确定的癌症复发风险;本文研究中研究者对来自加拿大和美国的1918名停经女性进行研究,这些患者要么进行5年期的芳香酶抑制剂(3种中的1种)疗法,要么才开始治疗,或者利用另一种抗雌激素药物他莫昔芬进行治疗。
随机选择后有一半参与者都进行了来曲唑疗法,而另一半进行安慰剂治疗;在进行了6年多的疗法后,仅有7%的来曲唑治疗组患者出现了癌症复发及另一侧乳腺患癌的情况,对照组为10.2%;同时仅有1.4%的来曲唑治疗组患者患上了另一种乳腺癌,而对照组为3.2%。作为对原始癌症复发的担忧(在骨质、肝脏及其它器官中贫乏),研究者又发现两组研究对象的原始癌症复发差异较小,来曲唑治疗组为5.7%,而对照组为7.1%。
在5年期间的随访过程中,接受来曲唑治疗的患者中有95%都免于乳腺癌发生,而对照组为91%。而且94%利用来曲唑治疗的患者都存活了5年,而对照组为93%。据ASCO统计数字显示,2012年,全球有超过600万乳腺癌患者在诊断为乳腺癌后仍然存活了至少5年。(生物谷Bioon.com)
本文系生物谷原创编译整理,欢迎转载!点击 获取授权 。更多资讯请下载生物谷APP.
生物谷推荐的新闻阅读:
Decade of hormone therapy reduces breast cancer recurrence: study
Doubling the duration of hormone therapy for women with early-stage breast cancer from five to 10 years reduces the risk of recurrence and developing tumors in the other breast, a study showed Sunday.
The study focused on a type of early-stage breast cancer known as hormone receptor-positive and was presented at the annual meeting of the American Society of Clinical Oncology (ASCO) in Chicago this weekend. It also appears in the New England Journal of Medicine.
Postmenopausal women who took the drug letrozole for a decade instead of an often prescribed five-year period saw a 34 percent lower risk of recurrence or of a new cancer in the other breast than those who received a placebo, according to researchers.
Letrozole is an aromatase inhibitor, which stops estrogen production in postmenopausal women.
The data suggests that "longer durations of widely-available therapy reduce the risk of cancer recurrence, and prevent second cancers from arising," said Harold Burstein, a breast cancer expert and associate professor of medicine at Harvard Medical School not linked to the study.
Lead study author Paul Goss, director of breast cancer research at Boston's Massachusetts General Hospital, said women with early stage hormone-receptor positive breast cancer face an "indefinite risk of relapse."......