高溶性达卡巴多元件晶体不太容易发生光降解
Luan F Diniz1, Paulo S Carvalho2, Mateus A C Souza1
1Laboratório de Controle de Qualidade de Medicamentos e Cosméticos, Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil.
Molecular pharmaceutics
|June 10, 2024
概括
开发了新的达卡巴辛 (DTIC) 固体形式,以提高溶解性和减少光降解. 这些新型盐和共晶体提供了更高的溶解率,可能提高黑色素瘤治疗效率.
科学领域:
- 制药科学 制药科学
- 固态化学 固态化学
- 在瘤学瘤学.
背景情况:
- 达卡巴 (DTIC) 对于晚期黑色素瘤至关重要,但具有较差的溶解性和光敏感性.
- 光降解产生不活性的2-azahypoxanthine (2-AZA),限制了治疗效果.
- 目前的配方需要策略来增强DTIC的生物制药特征.
研究的目的:
- 开发新的达卡巴 (DTIC) 盐和共晶形式.
- 为了提高DTIC的可溶性和溶解率.
- 为了尽量减少DTIC的光降解.
主要方法:
- 使用异性碳酸酸的联合结晶技术.
- 通过单晶X射线衍射 (SCXRD),粉末X射线衍射 (PXRD),FT-IR,H NMR,热重力测量分析 (TG) 和差分扫描热量测量 (DSC) 来进行结构性表征.
主要成果:
- 成功制备了两个DTIC盐,两个共晶和一个盐-共晶.
- 实现了显著的可溶性增强 (高达19倍),并增加了内在溶解率 (1.3到22倍).
- 这些新形式对减少DTIC溶液中的光降解产生了积极影响.
结论:
- 新型DTIC盐和共晶显著提高了溶解性和溶解性.
- 这些增强的固体形式有望克服达卡巴的生物制药限制.
- 开发的形式可能会导致更有效的黑色素瘤治疗.
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