Biodegradable polypeptide and the use thereof for the gradual release of drugs
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United States of America Patent
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Dec 11, 1990
Issued Date -
N/A
app pub date -
Jul 11, 1989
filing date -
Oct 19, 1984
priority date (Note) -
Expired
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Abstract
Biodegradable alkyloxycarbonylmethyl or aryloxycarbonylmethyl polyaspartate and polyglutamate which can be used as a carrier for drugs which are either in the encapsulated state or are incorporated in the polymer matrix. The polypeptide thus loaded degrades enzymatically in the organ where it has been placed and thus gradually releases the drug which it contains.
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