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Patent
Title
Pharmakologische Zubereitung aus einem nanopartikulaeren mesomorphen Polyelektrolyt-Lipid-Komplex und mindestens einem Wirkstoff
Other Title
Stable pharmaceutical preparation, useful for pH-dependent drug release, comprises active agent stored in lamellar structure of nanoparticulate mesomorphic polyelectrolyte-lipid complex.
Abstract
Die Erfindung betrifft eine pharmakologische Zubereitung aus einem nanopartikulaeren mesomorphen Polyelektrolyt-Lipid-Komplex und mindestens einem Wirkstoff. Der Polyelektrolyt-Lipid-Komplex weist dabei eine lamellare Struktur aus sich abwechselnden ionischen und nicht-ionischen Schichten auf, wobei der Wirkstoff in der nicht-ionischen Schicht eingelagert ist.
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WO2003004004 A UPAB: 20030328 NOVELTY - Pharmaceutical preparation (A) comprises a nanoparticulate mesomorphic polyelectrolyte-lipid complex (I) and at least one active agent (II), where (II) has a lamellar structure of alternating ionic and nonionic layers and (I) is stored in the nonionic layer in a manner allowing pH-dependent release. USE - (A) are used for the controlled delivery of (II) on slow break up in vivo (under the influence of solvent equilibria and charge interactions) (claimed). ADVANTAGE - (A) is an easily applied formulation providing controlled biodistribution, bioavailability and resorption of (II). The chemical stability of unstable (II) is improved in the form of (A), and crystallization of (II) is suppressed.
Inventor(s)
Thünemann, A.
General, S.
Link to:
Patent Number
2001-10132669
Publication Date
2003
Language
German