Homogeneous water-in-perfluorochemical stable liquid...

A - Human Necessities – 61 – K

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A61K 9/10 (2006.01) A61K 9/00 (2006.01) A61K 45/00 (2006.01)

Patent

CA 2217742

This invention is directed to a homogeneous water-in-perfluorochemical stable liquid dispersion for acceptable therapeutic administration of a drug to the lung of an animal. The dispersion includes a perfluorochemical liquid, water, surfactant and drug, wherein the water is homogeneously dispersed in the perfluorochemical to form a stable water-in-perfluorochemical liquid dispersion. The perfluorochemical constitutes greater than 50 % by volume of the dispersion, and the drug is contained in the dispersion in an effective therapeutic amount. The invention further includes a method of delivering a drug to the lung of an animal. This aspect of the invention includes administering a stable homogeneous water-in-perfluorochemical liquid dispersion to the animal lung or a section thereof. If desired, the method may further include delivering a breathable gas to the lung with a mechanical ventilator during the administration.

La présente invention concerne une dispersion homogène et stable d'eau dans un liquide chimique perfluoré, destinée à l'administration, acceptable sur le plan thérapeutique, d'un médicament dans les poumons d'un animal. Cette dispersion comprend un liquide chimique perfluoré, de l'eau, un agent tensioactif et un médicament. L'eau est dispersée de façon homogène dans le liquide chimique perfluoré, pour former cette dispersion stable. Le liquide chimique perfluoré représente plus de 50 % en volume de la dispersion laquelle contient le médicament en dose efficace sur le plan thérapeutique. L'invention comprend en outre un procédé d'administration d'un médicament dans les poumons d'un animal. Cet aspect de l'invention comprend l'administration d'une dispersion stable et homogène d'eau dans un liquide chimique perfluoré dans les poumons de l'animal ou dans une partie de ceux-ci. Si on le désire, le procédé peut comprendre aussi la libération d'un gaz respirable dans les poumons, au moyen d'un respirateur mécanique, pendant l'administration.

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