莱特可用于预防 BRCA1/2 突变的绝经后妇女患乳腺癌 (LIBER 研究)
Pascal Pujol1, Lise Roca2, Alain Lortholary3
1University Hospital of Montpellier - Arnaud De Villeneuve, Montpellier, France.
概括
芳酶抑制剂 (AI) 在BRCA1/2突变的女性中显示出减少乳腺癌 (BC) 的趋势,但试验不足. 需要进一步的研究来证实AI在这种高风险群体中预防BC的有效性.
科学领域:
- 在瘤学瘤学.
- 遗传学 是一个遗传学.
- 临床试验 临床试验
背景情况:
- 具有生殖系BRCA1或BRCA2突变 (gBRCAm) 的女性面临着患乳腺癌 (BC) 的高终身风险.
- 众所周知,芳酶抑制剂 (AI) 可以降低高风险人群中的BC发生率.
- 针对gBRCAm载体的AI的有效性尚未被彻底评估.
研究的目的:
- 评估Letrozole的疗效,一种AI,在携带生殖系BRCA1/2突变 (gBRCAm) 的绝经后妇女中预防侵袭性乳腺癌 (BC).
- 评估与人工智能在特定患者群体中的使用相关的安全性和生活质量.
主要方法:
- 一个随机的,双盲的,安慰剂对照的,III期试验 (LIBER) 涉及170名40-70岁的绝经后妇女与gBRCAm.
- 参与者接受了5年的莱特醇 (2.5毫克/天) 或安慰剂.
- 主要终点是侵袭性BC的5年发病率,并对安全性和生活质量进行了二次分析.
主要成果:
- 在72.7个月的中位随访后,5年内侵袭性BC的发病率在莱特醇组为7.8%,而安慰剂组为13.1%.
- 观察到的危险比为0.70 (95% CI 0.29-1.66),表明使用莱特醇 (p=0.416) 降低风险的趋势在统计学上并不显著.
- 在两组中,治疗坚持程度相似 (76.7%为莱特,73.5%为安慰剂),并且没有观察到安全事件或生活质量的显著差异.
结论:
- 在LIBER试验中,对人工智能对gBRCAm载体的侵袭性乳腺癌预防的有效性做出了明确的结论.
- 与莱特醇一起观察到降低BC发病率的趋势,这表明需要进一步调查的潜在益处.
- 更大的随机对照试验是必要的,以确定AI在预防BRCA1/2突变载体乳腺癌中的最终作用.
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