NEJM:来曲唑更能提高多囊卵巢综合症患者的生育能力

2014-07-18 佚名 冷泉港实验室

多囊卵巢综合症(PCOS)的病因病理比较复杂,一直以来是研究和医疗领域的一大难题。日前宾州州立大学医学院的科学家领导研究团队,比较了来曲唑(letrozole)和克罗米芬(Clomiphine citrate)对PCOS的治疗作用。研究显示来曲唑更能提高PCOS患者的生育能力。据统计,有5%-10%的育龄妇女受到PCOS的困扰,这种疾病是女性不孕最常见的原因。PCOS是一种以慢性无排卵、闭经或月经

多囊卵巢综合症(PCOS)的病因病理比较复杂,一直以来是研究和医疗领域的一大难题。日前宾州州立大学医学院的科学家领导研究团队,比较了来曲唑(letrozole)和克罗米芬(Clomiphine citrate)对PCOS的治疗作用。研究显示来曲唑更能提高PCOS患者的生育能力。


据统计,有5%-10%的育龄妇女受到PCOS的困扰,这种疾病是女性不孕最常见的原因。PCOS是一种以慢性无排卵、闭经或月经稀发、不孕、肥胖、多毛和卵巢多囊性增大为临床特征的综合症候群。这种育龄女性最常见的内分泌紊乱性疾病由于现在社会的竞争压力,呈现出越来越多发的现象,这种疾病最显著的特征是无排卵,卵巢不分泌孕激素。如果子宫内膜长期受雌激素的作用而无孕激素的作用,就会发生子宫内膜增生过长和子宫内膜癌。另外,不排卵也使患者无法自然怀孕。

几十年来,克罗米芬一直是广泛使用的PCOS标准疗法,这种药物能够有效刺激排卵。而来曲唑是一类阻断雌激素生产的药物。

“克罗米芬也有一定的缺陷,”领导这项研究的Richard Legro教授说。“它的成功率只有22%,需要多轮治疗才能促成一次成功的生育。而且与自然受孕相比,服用这种药物更容易出现多胎妊娠。此外,克罗米芬还会引起潮热和情绪改变等副作用。”

研究人员招募了750名患有PCOS的不孕女性,她们的年龄在18至40岁之间。这些女性在双盲试验中被随机分开,分别用剂量逐步增加的克罗米芬和来曲唑进行治疗。这项研究的结果于七月九日发表在《新英格兰医学杂志》杂志上。

研究显示,服用来曲唑的女性中,婴儿安全出生的比例为27.5%,高于克罗米芬组的19.1%。此外,来曲唑组每个月的排卵率也显著高于克罗米芬组。

服用来曲唑的女性只有3.9%出现多胎妊娠,而克罗米芬组的克罗米芬有6.9%。克罗米芬组发生潮热的女性比较多,而复用来曲唑的女性比较容易感到疲劳和头晕。就出生缺陷而言,服用这两种药物的怀孕女性和自然受孕的女性差不多,发生率都很低。

原始出处:

Legro RS1, Brzyski RG, Diamond MP, Coutifaris C, Schlaff WD, Casson P, Christman GM, Huang H, Yan Q, Alvero R, Haisenleder DJ, Barnhart KT, Bates GW, Usadi R, Lucidi S, Baker V, Trussell JC, Krawetz SA, Snyder P, Ohl D, Santoro N, Eisenberg E, Zhang H; NICHD Reproductive Medicine Network.Letrozole versus clomiphene for infertility in the polycystic ovary syndrome.N Engl J Med. 2014 Jul 10;371(2):119-29. doi: 10.1056/NEJMoa1313517.

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    2016-02-20 cmn

    来曲唑

    0

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    2014-07-20 siiner
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