Nanoparticle carrier systems based on human serum albumin for photodynamic therapy

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United States of America Patent

PATENT NO 9211283
APP PUB NO 20110142948A1
SERIAL NO

12941350

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Abstract

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Compositions, which are stable in storage, and a method of production of pharmaceutical based nanoparticulate formulations for photodynamic therapy comprising a hydrophobic photosensitizer, human serum albumin (HSA) and stabilizing agent are provided. These nanoparticulate formulations provide therapeutically effective amounts of photosensitizer (PS) for parenteral administration. In particular, tetrapyrrole derivatives can be used as photosensitizers whose efficacy and safety are enhanced by such nanoparticulate formulations. A method of preparing the HSA-based nanoparticles under sterile conditions is also provided. In one of the preferred embodiments of the present invention temoporfin, a hydrophobic PS, is formulated as a nanoparticle for parenteral administration. The formulations are useful for treating hyperplasic and neoplasic conditions, inflammatory problems, and more specifically to target tumor cells.

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Patent Owner(s)

Patent OwnerAddress
BIOLITEC UNTERNEHMENSBETEILIGUNGS II AGUNTERE VIADUKTGASSE 6/9 VIENNA 1030

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Albrecht, Volker Bergholz Rehbrücke, DE 45 357
Gräfe, Susanna Jena, DE 11 36
Löw, Karin Saarlouis, DE 2 8
Langer, Klaus Münster, DE 16 256
Preuss, Annegret Berlin, DE 1 6
Röder, Beate Falkensee, DE 2 8
von, Briesen Hagen Hunstetten, DE 12 70
Wacker, Matthias Nidderau, DE 5 9
Wagner, Sylvia Neunkirchen, DE 5 55
Wiehe, Arno Berlin, DE 18 58

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