用长效小分子对艾滋病毒囊蛋白进行临床向
John O Link1, Martin S Rhee1, Winston C Tse1,2
1Gilead Sciences, Foster City, CA, USA.
Nature
|July 3, 2020
概括
一种新的长效注射性艾滋病毒囊抑制剂GS-6207显示出强大的抗病毒活性. 这种新疗法为经验丰富的人提供了有前途的治疗和预防方案.
科学领域:
- 病毒学
- 药理学
- 药物开发
背景情况:
- 口服抗逆转录病毒疗法对于艾滋病毒治疗和预防至关重要,但也面临药物耐药性和坚持性等挑战.
- 经验丰富的患者由于多种药物耐药性,往往只有有限的治疗选择.
- 每日口服治疗方案的不理想遵守可能导致治疗失败,耐药性和传播.
研究的目的:
- 介绍一种新的小分子抑制剂GS-6207.
- 评估GS-6207作为长效治疗艾滋病毒的潜力.
- 在早期临床试验中评估GS-6207的安全性和有效性.
主要方法:
- GS-6207是使用X射线结晶学设计的,以准HIV囊蛋白的保存接口.
- 对各种HIV-1亚型进行了体外抗病毒活性测试.
- 评估了与现有抗逆转录病毒药物的协同作用和交叉耐药性.
- 一期临床研究评估了GS- 6207单次皮下注射剂的安全性,耐受性和药物动力学特征.
主要成果:
- GS- 6207在所有测试的HIV-1亚型中表现出强烈的抗病毒活性.
- 这种药物与已批准的抗逆转录病毒药物没有交叉耐药性.
- 在第一阶段的研究中,单次450mg皮下注射的GS- 6207导致9天内平均病毒载量显著降低 (2. 2 log10).
- 持续超过抗病毒活性水平的血度在治疗后的6个月内被观察到.
结论:
- 作为一种治疗策略,GS-6207验证了向HIV囊蛋白的功能.
- 这种药物具有很高的功效,良好的药动力学和长效性,使其成为长效艾滋病治疗和预防的有希望的候选药物.
- 对于治疗选择有限的个体和暴露前预防来说,GS- 6207是一种潜在的新疗法.
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