Patent ID: 6602274
Filing Date: 2003-08-05
Classification: A61K,A61N,A61P

Abstract:
A method for administering a photodynamic therapy to a target tissue or composition in a mammalian subject, comprising the steps of:(a) administering to the subject a therapeutically effective amount of a targeted photoreactive compound having a characteristic light absorption waveband, said targeted photoreactive compound selectively binding with the target tissue or composition, but not binding with a non-target tissue or composition; (b) transdermally irradiating at least a portion of the mammalian subject in which the target tissue or composition to which the targeted photoreactive compound has bound is disposed, with light having a waveband corresponding at least in part to the characteristic light absorption waveband of said targeted photoreactive compound; wherein the intensity of the light used for the step of transdermally irradiating and the duration of irradiation have been selected such that the target tissue or composition is destroyed and the non-target tissue or composition through which the light passes remains undamaged.