JAMA:去雄激素疗法(ADT)与心血管性死亡之间没有关联

2011-12-12 MedSci原创 MedSci原创

12月7日《美国医学会杂志》上刊登的一篇研究论文"Androgen Deprivation Therapy and Competing Risks",这项研究认为,尽管某些先前的研究表明,用去雄激素疗法(一种抑制雄性激素产生的治疗)治疗前列腺癌可能增加病人死于心血管性疾病的风险,但先前的一则对有不良风险、非转移性前列腺癌男子所做的随机化试验的荟萃分析没有发现这种关联性,但却发现一种与去雄激素疗法相

12月7日《美国医学会杂志》上刊登的一篇研究论文"Androgen Deprivation Therapy and Competing Risks",这项研究认为,尽管某些先前的研究表明,用去雄激素疗法(一种抑制雄性激素产生的治疗)治疗前列腺癌可能增加病人死于心血管性疾病的风险,但先前的一则对有不良风险、非转移性前列腺癌男子所做的随机化试验的荟萃分析没有发现这种关联性,但却发现一种与去雄激素疗法相关的较低的前列腺癌特异性死亡及全因死亡风险。

以促性腺激素释放激素(GnRH)激动剂形式进行的去雄激素疗法(ADT)是前列腺癌治疗的一个主要支柱。 波士顿哈佛医学院及布里格姆妇女医院和Dana - Farber癌症研究所的Paul L. Nguyen, M.D.及其同事开展了一项对随机对照试验的荟萃分析,旨在确定ADT是否与具有不良风险、非转移性前列腺癌男子中的心血管死亡率、前列腺特异性死亡率(PCSM)及全因死亡率有关。 对医学文献的审阅发现了8个随机化试验(n = 4,141患者)符合心血管死亡荟萃分析的纳入标准。 这些试验的随访中位数(中点)范围在7.6 至 13.2年间。

在2200名接受ADT治疗的病人中,有255人死于心血管性原因,这与11.0%的总体心血管事件死亡率相对应;在对照组中有1941名患者及 252例心血管性死亡, 这与11.2%的总体心血管事件死亡率相对应。 在接受短疗程(6个月或不到)ADT治疗的病人中,ADT组 相对对照组的致命性心血管事件发生率分别为10.5 % vs. 10.3 %。 在接受长疗程(3年或以上)ADT治疗的病人中,在ADT组和对照组的致命性心血管事件发生率分别为11.5 % 和11.5 %。

研究人员还发现,病人的年龄不会影响这些发现,因为无论中位数年龄是高于或低于70岁,ADT与心血管性死亡之间没有关联。

在ADT组的2527名患者中有443例PCSM死亡,而在对照组的2278名患者中有552例PCSM死亡。 接受ADT的男子的PCSM的相对风险会降低31%,其发生率相对于对照组的发生率分别为13.5% 和 22.1%。 在ADT组的病人中共有1140例死亡,在对照组病人中共有1213例死亡;分析显示接受ADT的男子的全因死亡率与对照组相比,其相对风险会降低14% (发生率分别为37.7% 和44.4%)。(生物谷bioon.com)

链接:doi:10.1001/jama.2011.1791
Androgen Deprivation Therapy and Competing Risks

William K. Kelly, DO; Leonard G. Gomella, MD

AndAndrogen deprivation therapy (ADT) has been the mainstay for the treatment of advanced prostate cancer for the past 7 decades. Surgical castration (orchiectomy) and the use of estrogens have been largely replaced by the administration of gonadotropin-releasing hormone (GnRH) agonists as the most common form of ADT used today.1,2 GnRH agonists are relatively easy to administer, avoid the well-known cardiovascular risks of estrogens and the psychological trauma of surgical castration, and allow the potential for the androgen blockade to be reversed.1,2. In the armamentarium of drugs used to treat cancer, modern ADT is generally considered to be well tolerated; however, adverse effects of ADT can include loss of libido, hot flashes, weight gain, osteopenia, unique metabolic syndrome, and alterations in lipid profile.1,2,3 More recent data suggest there may be an association between ADT with GnRH agonists and increased incidence.

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