在使用贝瓦西祖马布治疗卵巢癌期间,进展风险的时间依赖性变化
Shiro Takamatsu1, Hidekatsu Nakai2, Ken Yamaguchi1
1Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan.
JAMA network open
|August 2, 2023
概括
贝瓦西祖马布在卵巢癌中改善了大约一年的无进展生存率,但停止它可能会使结果恶化,特别是在血清性亚型中. 这表明根据预后量身定制的使用是关键.
科学领域:
- 在瘤学瘤学.
- 临床试验 临床试验
- 药物治疗 药物治疗
背景情况:
- 贝瓦西祖马布用于卵巢癌,但其最佳治疗策略尚不清楚.
- 了解bevacizumab的时间依赖性影响对于治疗优化至关重要.
研究的目的:
- 为了研究与卵巢癌中贝瓦西祖马布治疗相关的治疗结果的时间依赖性变化.
- 分析停止治疗贝瓦西祖马布对无进展生存期 (PFS) 的影响.
主要方法:
- 一项队列研究分析了涉及贝瓦西祖马布的7项第三期临床试验的数据.
- 利用来自ICON7试验的个体患者数据和来自其他试验的卡普兰-梅尔曲线的图形分析.
- 限制的平均存活时间和相对进展风险被计算为贝瓦齐祖马布与对照组.
主要成果:
- 在ICON7-A队列 (n=745) 中,贝瓦齐祖马布在停止治疗之前显著改善了PFS.
- 在停止服用贝瓦西祖马布后观察到PFS的显著反弹,特别是在血清亚型瘤中,无论HRD状态如何.
- 这种反弹效应在ICON7和GOG-0218试验中是一致的,但在继续服用贝瓦西祖马布直到进展的试验中没有观察到.
结论:
- 贝瓦西祖马布在卵巢癌中提供了大约一年的PFS益处.
- 停止服用贝瓦西祖马布可能会导致后续进展的增加,特别是在血清性亚型中.
- 第一线贝瓦西祖马布可能对预后较短的患者更有益,以减轻反弹效应.
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