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    • 22. 发明授权
    • Composition for enhanced uptake of polar drugs from the colon
    • 用于增强从结肠吸收极性药物的组合物
    • US06200602B1
    • 2001-03-13
    • US09011306
    • 1998-03-30
    • Peter James WattsLisbeth Illum
    • Peter James WattsLisbeth Illum
    • A61K928
    • A61K47/14A61K47/12
    • The invention provides a drug delivery composition for colonic delivery comprising a polar drug, an absorption promoter which (a) comprises a mixture of a fatty acid having 6 to 16 carbon atoms or a salt thereof and a dispersing agent, or (b) comprises a mixture of mono/diglycerides of medium chain fatty acids and a dispersing agent, and means adapted to release the polar drug and absorption promoter in the colon following oral administration. A preferred fatty acid is capric acid or a salt thereof. Colon specific delivery can be achieved by providing the composition in a capsule, tablet or pellet which is coated with a material which dissolves in the small intestine or is degraded by the conditions in the colon.
    • 本发明提供一种用于结肠递送的药物递送组合物,其包含极性药物,吸收促进剂,其(a)包含具有6至16个碳原子的脂肪酸或其盐和分散剂的混合物,或(b)包含 中链脂肪酸的单/二甘油酯和分散剂的混合物,以及适于在口服给药后在结肠中释放极性药物和吸收促进剂的装置。 优选的脂肪酸是癸酸或其盐。 可以通过将组合物提供在胶囊,片剂或丸粒中来实现结肠特异性递送,所述胶囊,片剂或丸粒涂覆有溶解在小肠中或被结肠中的条件降解的材料。
    • 23. 发明授权
    • Nasal drug delivery composition containing nicotine
    • 含有尼古丁的鼻内给药组合物
    • US5935604A
    • 1999-08-10
    • US553401
    • 1996-07-01
    • Lisbeth Illum
    • Lisbeth Illum
    • A61K47/36A61K9/00A61K31/455A61K31/465A61K47/42A61K47/48A61P27/16A61K31/33
    • A61K31/465A61K47/48184A61K47/48853A61K9/0043
    • The present invention provides a nasal drug delivery composition comprising nicotine or a pharmacologically-acceptable salt or derivative thereof wherein the composition is adapted to delivery a pulse of nicotine for rapid absorption and a controlled release of nicotine for subsequent sustained absorption. The controlled release phase can be achieved by providing an ion-exchange material which will form a complex with the nicotine. The ion-exchange material may be a polymeric material such as a polysaccharide, or may be in the form of bioadhesive ion-exchange microspheres. The pulse release can be achieved by overloading the ion-exchange material with nicotine so that the composition contains some excess nicotine for immediate release and absorption. Alternatively, some nicotine may be associated with a non ion-exchange material which will release the nicotine immediately on contact with the nasal mucosa, for example non-ion-exchange bioadhesive microspheres.
    • PCT No.PCT / GB94 / 01092 Sec。 371日期:1996年7月1日 102(e)日期1996年7月1日PCT提交1994年5月20日PCT公布。 公开号WO94 / 27576 日期1994年12月8日本发明提供了包含尼古丁或其药理学上可接受的盐或其衍生物的鼻用药物递送组合物,其中该组合物适于递送尼古丁脉冲以便快速吸收和控制释放尼古丁以用于随后的持续吸收。 控制释放阶段可以通过提供与尼古丁形成复合物的离子交换材料来实现。 离子交换材料可以是聚合材料,例如多糖,或者可以是生物粘附离子交换微球的形式。 脉冲释放可以通过用尼古丁重载离子交换材料来实现,使得组合物含有一些过量的尼古丁用于立即释放和吸收。 或者,一些尼古丁可能与非离子交换材料相关联,其将在与鼻粘膜接触时立即释放尼古丁,例如非离子交换生物粘附微球。
    • 25. 发明授权
    • Process for preparing microparticles
    • 微粒制备方法
    • US09226900B2
    • 2016-01-05
    • US13003506
    • 2009-07-10
    • Andrew NaylorAndrew Lester LewisLisbeth Illum
    • Andrew NaylorAndrew Lester LewisLisbeth Illum
    • A61K9/00A61K38/00A61K9/16
    • A61K9/1682A61K9/145A61K9/146A61K9/1647A61K9/1694A61K31/519A61K38/385
    • A process for preparing microparticles comprising a biologically active material and a polymer and having a mean particle size expressed as the volume mean diameter (VMD) of from 10 to 500 μm, wherein the biologically active material is substantially insoluble in the polymer, which process comprises: a. contacting a mixture of the biologically active material or a precursor thereof, the polymer or a precursor thereof and a processing aid with a supercritical fluid which is capable of swelling the polymer under temperature and pressure conditions necessary to maintain the fluid in a supercritical state; b. allowing the supercritical fluid to penetrate and liquefy the polymer, while maintaining the temperature and pressure conditions so that the fluid is maintained in a supercritical state; c. releasing the pressure to precipitate microparticles comprising the biologically active agent and the polymer.
    • 一种制备包含生物活性材料和聚合物并具有表示为10至500μm的体积平均直径(VMD)的平均粒径的微粒的方法,其中生物活性材料基本上不溶于聚合物,该方法包括 : 一个。 使生物活性材料或其前体,聚合物或其前体和加工助剂的混合物与能够在保持流体处于超临界状态所需的温度和压力条件下使聚合物溶胀的超临界流体接触; b。 允许超临界流体渗透和液化聚合物,同时保持温度和压力条件,使得流体保持在超临界状态; C。 释放压力以沉淀包含生物活性剂和聚合物的微粒。