Method for preparing small particles

    公开(公告)号:ZA200506900B

    公开(公告)日:2006-08-30

    申请号:ZA200506900

    申请日:2005-08-29

    Applicant: BAXTER INT

    Abstract: The present invention is concerned with the formation of small particles of organic compounds by precipitating the organic compounds in an aqueous medium to form a pre-suspension followed by adding energy to stabilize a coating of the particle or to alter the lattice structure of the particle. The process includes the steps of: (i) dissolving the organic compound in the water-miscible first solvent to form a solution; (ii) mixing the solution with the second solvent to define a presuspension of particles; and (iii) adding energy to the presuspension to form a suspension of particles having an average effective particle size of less than about 100 mum. The process is preferably used to prepare a suspension of small particles of a poorly water-soluble, pharmaceutically active compound suitable for in vivo delivery by an administrate route such as parenteral, oral, pulmonary, nasal, buccal, topical ophthalmic, rectal, vaginal, transdermal or the like.

    107.
    发明专利
    未知

    公开(公告)号:BRPI0408707A

    公开(公告)日:2006-03-07

    申请号:BRPI0408707

    申请日:2004-03-24

    Applicant: BAXTER INT

    Abstract: Methods and apparatuses for comminuting and stabilizing small particles are provided. In one embodiment, an apparatus moves an organic compound dissolved in a solvent to form a suspension of particles in a first fluid stream and moves the suspension in a second fluid stream, wherein the second fluid stream is oriented and positioned with respect to the first stream to cause shearing between the streams and mixing of at least some of the particles in the first and second streams.

    Specific delivery of drugs to the brain

    公开(公告)号:AU2004249172A1

    公开(公告)日:2004-12-29

    申请号:AU2004249172

    申请日:2004-06-15

    Applicant: BAXTER INT

    Abstract: The present invention is concerned with delivering a pharmaceutical composition to the brain of a mammalian subject for treating brain diseases or disorders. The process includes the steps of: (i) providing a dispersion of the pharmaceutical composition as particles having an average particle size of from about 150 nm to about 100 microns, and (ii) administering the dispersion to the mammalian subject for delivery to the brain of a portion of the pharmaceutical composition by cells capable of reaching the brain. The dispersion of the pharmaceutical composition as particles, for example, can be phagocytized or adsorbed by the cells prior or subsequent to administration into the mammalian subject. The dispersion of the pharmaceutical composition can be administered to the central nervous system or the vascular system. After administration, the loaded cells transport the pharmaceutical composition as particles into the brain.

Patent Agency Ranking