美国食品和药物管理局批准摘要:Polatuzumab Vedotin在选择大B细胞淋巴瘤的第一线治疗中
Maryam Sarraf Yazdy1, Yvette L Kasamon1, Wenjuan Gu1
1Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland.
概括
美国食品和药物管理局批准了波拉图祖马布维多丁加R-CHP用于未经治疗的扩散性大B细胞淋巴瘤. 虽然它改善了无进展生存期 (PFS),但没有证明总生存期 (OS) 的好处,这引发了关于其风险/益处概况的问题.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 临床试验 临床试验
背景情况:
- 扩散性大B细胞淋巴瘤 (DLBCL) 是一种侵略性的非霍奇金淋巴瘤.
- 第一线治疗通常涉及化疗免疫疗法,但结果可能有所不同.
- 需要新的治疗策略来改善患者的生存率并减少与治疗相关的毒性.
研究的目的:
- 评估波拉图祖马布维多丁与R-CHP结合的疗效和安全性,作为先前未经治疗的DLBCL的第一线治疗.
- 为了比较Polatuzumab vedotin加R-CHP (pola+R-CHP) 与R-CHOP在POLARIX试验中的无进展生存期 (PFS).
主要方法:
- 波拉里克斯试验是一项随机,双盲,安慰剂控制的研究,涉及879名以前未经治疗的DLBCL患者.
- 患者接受了pola+R-CHP或R-CHOP,随后接受了两轮rituximab.
- 疗效主要通过研究人员评估的PFS进行评估.
主要成果:
- 与R-CHOP相比,Polatuzumab vedotin加R-CHP在PFS中显示出一个统计学上显著的改善 (HR 0.73;P=0.0177).
- 两只手臂之间没有观察到完全响应率或整体存活率 (OS) 的显著差异.
- 由于PFS的收益和缺乏OS改进,利益风险概况受到争论.
结论:
- 波拉图祖马布维多丁加R-CHP在DLBCL的第一线治疗中提供了适度的PFS益处.
- 由于缺乏经过证明的OS益处和其他终点考虑因素,因此需要仔细评估其在治疗意图治疗中的作用.
- 进一步分析和长期跟踪对于确定在DLBCL中波拉图祖马布维多丁的最佳使用至关重要.
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