Microparticles of biodegradable polymer encapsulating a biologically active substance and sustained release pharmaceutical formulations containing same
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United States of America Patent
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Issued Date -
Mar 18, 2004
app pub date -
Jul 7, 2003
filing date -
Jan 26, 2001
priority date (Note) -
Abandoned
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Abstract
The present invention relates to novel microparticles of biodegradable polymer encapsulating a water-soluble or water-insoluble biologically active substance, a method for preparing same and a burst free sustained release pharmaceutical formulation comprising those microparticles.
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