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    • 3. 发明申请
    • PHARMACEUTICAL DOSAGE FORM
    • 药物剂型
    • US20130337022A1
    • 2013-12-19
    • US13988959
    • 2011-11-28
    • Viness PillayRubina Perveen ShaikhYahya Essop ChoonaraLisa Claire Du Toit
    • Viness PillayRubina Perveen ShaikhYahya Essop ChoonaraLisa Claire Du Toit
    • A61K9/00
    • A61K9/00A61K9/006A61K9/0065
    • A pH responsive and mucoadhesive pharmaceutical dosage form for the release of a pharmaceutically active agent is described. The dosage form includes a mucoadhesive layer for site-specific mucoadhesion, a water-insoluble outer layer, and an intermediate layer including one or more pharmaceutically active agents for site-specific delivery. The different membranous layers perform different functions in order to create a drug delivery system which is able to deliver a drug to a specific site, for a particular period of time and with a specific drug release pattern. The dosage form can have two or more intermediate layers, each layer comprising an active agent. The mucoadhesive layer can also include an active agents. The dosage form is preferably an oral or buccal delivery form for release of the active agent into the gastro intestinal tract. The intermediate layer can be an electrospun fibrous membrane layer containing the active agent.
    • 描述了用于释放药物活性剂的pH响应和粘膜粘附药物剂型。 剂型包括用于位点特异性粘膜粘附的粘膜粘附层,水不溶性外层和包含用于位点特异性递送的一种或多种药物活性剂的中间层。 不同的膜层执行不同的功能,以便产生药物递送系统,其能够将药物递送到特定部位一段特定的时间段并且具有特定的药物释放模式。 剂型可以具有两个或更多个中间层,每个层包含活性剂。 粘膜粘附层也可以包括活性剂。 剂型优选是用于将活性剂释放到胃肠道中的口服或口腔递送形式。 中间层可以是含有活性剂的电纺纤维膜层。
    • 6. 发明申请
    • PHARMACEUTICAL COMPOSITION
    • 药物组合物
    • US20140037574A1
    • 2014-02-06
    • US13989153
    • 2011-11-28
    • Pius Sedowhe FasinuViness PillayYahya Essop ChoonaraLisa Claire Du Toit
    • Pius Sedowhe FasinuViness PillayYahya Essop ChoonaraLisa Claire Du Toit
    • A61K31/785A61K31/765A61K31/78A61K31/44
    • A61K31/785A61K31/44A61K31/4422A61K31/765A61K31/78A61K45/06A61K2300/00
    • The invention provides a pharmaceutical composition for oral administration of a pharmaceutically active agent to a subject, including the pharmaceutically active agent and an inhibitor of CYP3A4. Administration of the inhibitor and the pharmaceutically active agent reduces pre-systemic degradation of the pharmaceutically active agent by CYP3A4. The inhibitor can be poly(ethylene glycol), methoxy poly(ethylene glycol), aminated poly(ethylene glycol), O-(2-aminoethyl)-O-methoxy poly(ethylene glycol), polyoxyethylene glycol, branched poly(ethylene glycol), 3-arm poly(ethylene glycol), 4-arm poly(ethylene glycol), 8-arm-poly(ethylene glycol)polyamine, poly(L-lysine), poly(L-arginine), poly(L-alanine), poly(L-valine), poly(L-serine), poly(L-histidine), poly(L-isoleucine), poly(L-leucine), poly(L-glutamic acid), poly(L-glutamine), poly(L-guanidine), poly(methyl methacrylate), polyvinyl acetate, polyacrylate, poly(lactic-co-glycolic acid) and derivatives thereof. A method of treatment is also described.
    • 本发明提供了一种用于向受试者口服给药药物活性剂的药物组合物,包括药物活性剂和CYP3A4抑制剂。 抑制剂和药物活性剂的给药减少CYP3A4对药物活性剂的系统前降解。 抑制剂可以是聚(乙二醇),甲氧基聚(乙二醇),胺化聚(乙二醇),O-(2-氨基乙基)-O-甲氧基聚(乙二醇),聚氧乙二醇,支链聚(乙二醇) ,3-臂聚(乙二醇),4-臂聚(乙二醇),8-臂聚(乙二醇)多胺,聚(L-赖氨酸),聚(L-精氨酸),聚(L-丙氨酸) ,聚(L-缬氨酸),聚(L-丝氨酸),聚(L-组氨酸),聚(L-异亮氨酸),聚(L-亮氨酸),聚(L-谷氨酸) ,聚(L-胍),聚(甲基丙烯酸甲酯),聚乙酸乙烯酯,聚丙烯酸酯,聚(乳酸 - 共 - 乙醇酸)及其衍生物。 还描述了一种治疗方法。
    • 7. 发明申请
    • POLYMERIC MATRIX OF POLYMER-LIPID NANOPARTICLES AS A PHARMACEUTICAL DOSAGE FORM
    • 聚合物脂质纳米粒子作为药物剂型的聚合物
    • US20140005269A1
    • 2014-01-02
    • US13989462
    • 2011-11-28
    • Ndidi NgwulukaViness PillayYahya Essop ChoonaraLisa Claire Du Toit
    • Ndidi NgwulukaViness PillayYahya Essop ChoonaraLisa Claire Du Toit
    • A61K47/32A61K31/198
    • A61K47/32A61K9/2077A61K9/513A61K31/198
    • A pharmaceutical dosage form for the release of at least one pharmaceutically active ingredient is claimed. The pharmaceutical dosage form includes a polymer matrix, polymer-lipid nanoparticles incorporated within the matrix and the pharmaceutically active ingredient(s). The polymer matrix is formed from at least two crosslinked cationic and anionic polymers, such as Eudragit® E100 and sodium carboxymethlycellulose. It can also include a neutral polymer, such as one derived from locust bean. The polymer-lipid nanoparticles are formed from at least one polymer, such as Eudragit® E100 and/or chitosan, and at least one phospholipid, such as lecithin. The polymer(s) and phospholipid are crosslinking with a chelating agent, such as sodium tripolyphosphate. The active ingredient or ingredients can be any pharmaceutically active compound(s), and in particular poorly absorbed compounds such as levodopa for the treatment of Parkinson's disease.
    • 要求保护用于释放至少一种药物活性成分的药物剂型。 药物剂型包括聚合物基质,掺入基质内的聚合物 - 脂质纳米颗粒和药物活性成分。 聚合物基质由至少两种交联的阳离子和阴离子聚合物如Eudragit E100和羧甲基纤维素钠形成。 它还可以包括一种中性聚合物,如从刺槐豆衍生的聚合物。 聚合物 - 脂质纳米颗粒由至少一种聚合物如Eudragit E100和/或壳聚糖和至少一种磷脂如卵磷脂形成。 聚合物和磷脂与螯合剂如三聚磷酸钠交联。 活性成分或成分可以是任何药物活性化合物,特别是不良吸收的化合物,例如用于治疗帕金森病的左旋多巴。