使用通用对对比的临床试验设计,以测试一种不那么密集的治疗方案
Mickaël De Backer1, Manju Sengar2, Vikram Mathews3
1IDDI (International Drug Development Institute), Louvain-la-Neuve, Belgium.
Clinical trials (London, England)
|October 25, 2023
概括
一般化的对对比提供了一种强大的方法来评估急性前列腺细胞白血病中不那么密集的治疗方法. 这种方法需要大约300名患者,比传统的非劣势性试验少得多.
科学领域:
- 临床试验 临床试验
- 血液学 血液学 血液学
- 在瘤学瘤学.
背景情况:
- 急性前列细胞白血病 (APL) 治疗已通过向疗法取得进展,但毒性仍然是一个重大的临床挑战.
- 证明较少密集治疗方案的有利益处/风险概况对于改善患者的治疗结果至关重要.
- 为了这个目的,传统的非劣等性试验可能是复杂的设计和执行.
研究的目的:
- 在APL中使用一般化的对对比来确认较少密集治疗方案的有利益处/风险.
- 通过模拟来确定这样的试验所需的样本大小.
- 评估五个优先结果,平衡有效性和安全性.
主要方法:
- 一个临床试验设计,采用五个优先结果的通用对对比.
- 基于历史数据的模拟来计算检测净治疗收益的样本大小.
- 结果的优先级:活着,在2岁时没有任何事件,3/4级感染,分化综合征,肝毒性和神经病变.
主要成果:
- 模拟表明,一般化的对比比较需要平均样本大小为260-300名患者.
- 净治疗效益为0.19,需要治疗大约5.3名患者 (治疗所需人数).
- 这样样本的样本大小远小于在4%的非劣势差距试验中所需的>700名患者.
结论:
- 一般化的对对比可以同时评估疗效和安全性,优先考虑疗效.
- 这种方法提供了一种更有效的方法来评估APL中不那么密集的治疗方案.
- 拟议的试验设计需要一个可管理的样本大小,以促进APL的临床研究.
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