血友病基因疗法:开始的结束?
Dries De Wolf1, Kshitiz Singh1, Marinee K Chuah1,2
1Department of Gene Therapy and Regenerative Medicine, Vrije Universiteit Brussel, Brussels, Belgium.
Human gene therapy
|September 6, 2023
概括
血友病A和B的基因疗法已经推进了新的AAV5载体治疗方法,如Roctavian和Hemgenix,显著减少出血和因子使用. 长期疗效和患者间的变异性需要进一步研究.
科学领域:
- 基因治疗 基因治疗
- 血液学 血液学 血液学
- 病毒载体技术 病毒载体技术
背景情况:
- 血友病A和B是严重的出血障碍.
- 基因疗法提供了一个有前途的新治疗途径.
- 最近的进展导致对血友病基因疗法的监管批准.
研究的目的:
- 审查最近批准的血友病基因疗法的疗效和安全性.
- 讨论这些新型治疗方法的第三阶段临床试验的结果.
- 探索血友病基因治疗和基因编辑的未来方向.
主要方法:
- 对AAV5载体基因疗法的III期临床试验数据的审查.
- 分析疗效 (凝血因子水平,出血发作) 和安全性 (不良事件).
- 对凝血因子表达稳定性和患者间变异性的评估.
主要成果:
- 罗克塔维安 (valoctocogene roxaparvovec) 和海姆格尼克斯 (etranacogene dezaparvovec) 显示分别显著增加了XVIII和IX因子水平.
- 大多数患者经历了减少的出血发作和减少了因子预防的需要.
- 短期肝炎是常见的,但可控的;FIX表达似乎比FVIII更稳定.
结论:
- 经批准的基因疗法代表了对血友病治疗的重大突破.
- 需要进一步的研究,以了解患者间的变异性,并确保长期表达.
- 基因编辑技术有可能在所有年龄段治疗血友病.
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