Subcutaneous implant
First Claim
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1. A method of providing prolonged relief of pain in a mammal suffering from pain comprising subcutaneously administering a delivery system comprising:
- i) a matrix comprising poly(ethylene-vinyl acetate),ii) hydromorphone embedded homogeneously in said matrix,iii) poly(methyl methacrylate) coating said matrix,wherein said delivery system is adapted to deliver said hydromorphone at a rate of plus or minus 500% of the target delivery rate, to said mammal, and wherein said delivery system has a geometry such that there is an external coated wall and an internal uncoated wall and the distance between the uncoated wall and the coated wall opposite the uncoated wall is substantially constant throughout the delivery system.
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Abstract
A non-abusable, non-inflammatory, biocompatible, non-biodegradable, subcutaneous, polymeric implant for the prolonged, controlled release of hydromorphone with near zero-order kinetics is described. Methods of alleviating cancer pain and treating opioid drug addiction with the implant are also described.
224 Citations
15 Claims
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1. A method of providing prolonged relief of pain in a mammal suffering from pain comprising subcutaneously administering a delivery system comprising:
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i) a matrix comprising poly(ethylene-vinyl acetate), ii) hydromorphone embedded homogeneously in said matrix, iii) poly(methyl methacrylate) coating said matrix, wherein said delivery system is adapted to deliver said hydromorphone at a rate of plus or minus 500% of the target delivery rate, to said mammal, and wherein said delivery system has a geometry such that there is an external coated wall and an internal uncoated wall and the distance between the uncoated wall and the coated wall opposite the uncoated wall is substantially constant throughout the delivery system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of providing prolonged relief of pain in a mammal suffering from pain comprising subcutaneously administering a delivery system comprising:
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i) a matrix comprising polyethylene vinyl (acetate), ii) hydromorphone embedded homogeneously in said matrix, and iii) a poly(methyl methacrylate) coating surrounding said matrix wherein said delivery system is cylindrical in shape and has a cylindrical shaped opening along the axis of said delivery system forming an internal uncoated wall in said delivery system, to said mammal. - View Dependent Claims (12, 13, 14, 15)
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Specification