COPOLYMER CONTAINING POLY(ETHYLENE GLYCOL) AND POLY(L-AMINO ACID DERIVATIVE), MICROPARTICLES THEREOF AND USE THEREOF IN PHARMACEUTICAL COMPOSITION

An objective of the present invention is to provide a self-assembled polymer micelle-type ornithine donor, which has high bioavailability, low toxicity, and high therapeutic effectiveness, even when provided by oral administration. Another objective of the present invention is to provide a self-asse...

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Bibliographische Detailangaben
Hauptverfasser: KODA, Yuta, VONG, Long Binh, NAGASAKI, Yukio, DING, Yuanyuan, LEE, Yaroslav
Format: Patent
Sprache:eng
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Zusammenfassung:An objective of the present invention is to provide a self-assembled polymer micelle-type ornithine donor, which has high bioavailability, low toxicity, and high therapeutic effectiveness, even when provided by oral administration. Another objective of the present invention is to provide a self-assembled polymer micelle-type ornithine donor which is effective in preventing or treating hepatic disorders. In order to achieve the above objectives, an acyl group is introduced into the primary amino group in the side chain of an ornithine unit in the poly(ornithine) segment of poly(ethylene glycol)-b-poly(ornithine), which spontaneously forms polymer micelles without polyion complex formation.