Asialoglycoprotein - conjugated medicinal agent
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United States of America Patent
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Sep 13, 1994
Grant Date -
N/A
app pub date -
Feb 4, 1993
filing date -
Jun 19, 1991
priority date (Note) -
Expired
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Abstract
The present invention relates to a conjugated medicinal agent prepared by combining asialoglycoprotein with a medicine which acts specifically on the liver. The conjugated medicinal agent of the present invention has the following formula (1): P-(S)x-Gal-GA-R, wherein in the P-(S)x-moiety, P is a peptide residue of a human serum glycoprotein and S is a sugar residue of a human serum glycoprotein; Gal is galactose residue; GA is glutaraldehyde residue; x is an integer equal to or greater than 1; and R is a medicinal component selected from the group consisting of interferon, acyclovir sodium, ribavirin, vidarabine, zidovudine, suramin, anti-sense oligonucleotide, ribozyme, leucovorin calcium, sodium-meglumine diatrizoate, gadolinium-DTPA, glutathione (GSH), prostaglandins, .sup.99m Tc and .sup.131 I. The present invention also includes a process for preparing the conjugated medicinal agent of formula (I), a pharmaceutical composition containing the conjugated medicine and the use of the conjugated medicine.
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