可在现场饮用,用于胃肠道治疗,形成坚固的水凝
Gary W Liu1, Matthew J Pickett1,2, Johannes L P Kuosmanen3
1David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.
Nature materials
|February 27, 2024
概括
新的液体在位形成固 (LIFT) 水凝为那些难以吞药片的患者提供了解决方案. 这些先进的药物输送系统在胃中形成,使治疗药物的控制释放和保护成为可能.
科学领域:
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
- 胃肠病学 胃肠病学
背景情况:
- 吞下药丸对许多患者来说是一个重大挑战,限制了治疗选择.
- 液体药物配方缺乏局部治疗或提供受控释放的能力.
- 现有的剂量形式不能充分弥合固体和液体药物优势之间的差距.
研究的目的:
- 开发和描述用于口服药物输送的新型液体在位形成坚固 (LIFT) 水凝.
- 评估LIFT水凝的体内形成,机械性能,生物相容性和清除.
- 评估LIFT水凝在控制药物释放和保护敏感生物制剂方面的治疗潜力.
主要方法:
- 连续摄入交叉连接剂 (和滴醇) 和含有药物的聚合物 (酸盐和PEG-maleimide) 溶液.
- 在动物和猪的胃环境中进行体内水凝形成的评估.
- 机械测试,生物相容性测试和药物动力学分析.
- 对封装酶和细菌对胃酸的保护的评估.
主要成果:
- 在活老鼠和猪的胃中,LIFT水凝成功地在现场形成.
- 水凝表现出强大的机械性,优异的生物相容性,并在24小时内安全清除.
- 实现了药物释放的控制,总剂量与未封装药物相当.
- 被封装的治疗酶和细菌被保护免受胃酸的失活.
结论:
- 液体在位形成坚固 (LIFT) 水凝代表了口服药物输送的有希望的新平台,克服了传统药丸和液体的局限性.
- 这些水凝提供了一个多功能解决方案,用于局部药物输送,控制释放和保护胃中敏感的治疗药物.
- LIFT水凝有潜力显著提高患者的服从性,并扩大获得先进的口服治疗方法的机会,特别是对于难以吞的人来说.
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