发明名称 Aerodynamically light particles for pulmonary drug delivery
摘要 Improved aerodynamically light particles for drug delivery to the pulmonary system, and methods for their synthesis and administration are provided. In a preferred embodiment, the aerodynamically light particles are made of biodegradable material and have a tap density of less than 0.4 g/cm<3 >and a mass mean diameter between 5 mum and 30 mum. The particles may be formed of biodegradable materials such as biodegradable polymers. For example, the particles may be formed of a functionalized polyester graft copolymer consisting of a linear alpha-hydroxy-acid polyester backbone having at least one amino acid group incorporated therein and at least one poly(amino acid) side chain extending from an amino acid group in the polyester backbone. In one embodiment, aerodynamically light particles having a large mean diameter, for example greater than 5 mum, can be used for enhanced delivery of a therapeutic agent to the alveolar region of the lung. The aerodynamically light particles incorporating a therapeutic agent may be effectively aerosolized for administration to the respiratory tract to permit systemic or local delivery of wide variety of therapeutic agents.
申请公布号 US2004047811(A1) 申请公布日期 2004.03.11
申请号 US20030441948 申请日期 2003.05.20
申请人 THE PENN STATE RESEARCH FOUNDATION;MASSACHUSETTS INSTITUTE OF TECHNOLOGY 发明人 EDWARDS DAVID A.;CAPONETTI GIOVANNI;HRKACH JEFFREY S.;LOTAN NOAH;HANES JUSTIN;BEN-JEBRIA ABDELLAZIZ;LANGER ROBERT S.
分类号 A61K9/12;A61K9/00;A61K9/14;A61K9/16;A61K9/72;A61K31/137;A61K47/32;(IPC1-7):A61K38/28;A61K38/00;A61K48/00;A61L9/04;A61K31/715 主分类号 A61K9/12
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