Dehydrated hydrogel inclusion complex of a bioactive agent with flowable drug delivery system
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United States of America Patent
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Nov 8, 2016
Grant Date -
Jul 14, 2011
app pub date -
Jun 3, 2009
filing date -
Jun 3, 2008
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Abstract
The invention provides a controlled release biodegradable polymer formulation adapted for administering bioactive agents such as therapeutic proteins to a patient through implantation of a bolus that forms a depot within the patient's body tissues. The formulation includes a dehydrated inclusion complex of the bioactive agent within a hydrogel, wherein the hydrogel can comprise a polymerized polyalkyleneglycolyl diacrylate, and, optionally, polyalkyleneglycolyl monoacrylates, including methacrylates. Alternatively, the hydrogel can comprise hyaluronic acid, chitosan, agarose, polyvinylacetate, polyvinylpyrrolide, or polyvinylalcohol nanoparticles. The bioactive agent can be a macromolecular material, such as a protein. A method of forming the inventive formulation is also provided, as well as a method for using the formulation in the treatment of a malcondition in a patient in need thereof.
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