Reduction of adhesions using controlled delivery of active oxygen inhibitors
First Claim
1. A composition for the local alleviation of a medical condition caused by inflammation or unwanted tissue proliferation at a site, the composition comprisingan effective amount of one or more active oxygen inhibitor compounds which destroy or prevent the formation of active oxygen species in a polymer solution or hydrogel, wherein the polymer solution or hydrogel is administered to the site in a fluent form and forms a conforming barrier by ionic crosslinking, chemical redox reaction, photopolymerization, or physical gelation at the site of administration, and wherein the barrier persists at the site for days to weeks.
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Abstract
SOD and other active oxygen inhibitors are directly applied in combination with a barrier material at local sites of tissue injury to prevent or decrease formation of adhesions and undesirable proliferation of cells. Preferred barrier materials are polymeric hydrogels providing controlled release of AOI which are directly applied to the afflicted tissue. Examples demonstrate the effects of SOD on pelvic adhesions in the rat when administered by intraperitoneal (I.P.) bolus and by localized sustained release from a topically applied hydrogel system.
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Citations
22 Claims
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1. A composition for the local alleviation of a medical condition caused by inflammation or unwanted tissue proliferation at a site, the composition comprising
an effective amount of one or more active oxygen inhibitor compounds which destroy or prevent the formation of active oxygen species in a polymer solution or hydrogel, wherein the polymer solution or hydrogel is administered to the site in a fluent form and forms a conforming barrier by ionic crosslinking, chemical redox reaction, photopolymerization, or physical gelation at the site of administration, and wherein the barrier persists at the site for days to weeks.
- 10. A method for the prevention of local inflammation or tissue proliferation, comprising administering a comprising an effective amount of an active oxygen inhibitor compound which destroys or prevents the formation of active oxygen species in combination with a polymer solution or hydrogel, wherein the polymer solution or hydrogel is administered to the site in a fluent form and forms a conforming barrierby ionic crosslinking, chemical redox reaction, photopolymerization, or physical gelation at the site of administration, and wherein the barrier persists at the site for days to weeks.
Specification