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AssigneeKinerton Limited
InventorsShalaby W. Shalaby, Steven A. Jackson, Jacques-Pierre Moreau
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A composition including a polyester containing one or more free COOH groups ionically conjugated with a bioactive polypeptide comprising at least one effective ionogenic amine, wherein the polyester contains a member selected from the group of L-lactic acid, D-lactic acid, DL-lactic acid, .epsilon.-caprolactone, p-dioxanone, .epsilon.-caprolic acid, alkylene oxalate, cycloalkylene oxalate, alkylene succinate, .beta.-hydroxybutyrate, substituted or unsubstituted trimethylene carbonate, 1,5-dioxopan-2-one, 1,4-dioxepan-2-one, glycolide, glycolic acid, L-lactide, D-lactide, DL-lactide, meso-lactide, and any optically active isomers, racemates or copolymers thereof, and at least 50%, by weight, of the polypeptide present in the composition is ionically conjugated to said polyester.
A composition comprising a polyester containing one or more free COOH groups ionically conjugated with a bioactive polypeptide comprising at least one effective ionogenic amine, wherein said polyester contains a member selected from the group of L-lactic acid, D-lactic acid, DL-lactic acid, .epsilon.-caprolactone, p-dioxanone, .epsilon.-caprolic acid, alkylene oxalate, cycloalkylene oxalate, alkylene succinate, .beta.-hydroxybutyrate, substituted or unsubstituted trimethylene carbonate, 1,5-dioxopan-2-one, 1,4-dioxepan-2-one, glycolide, glycolic acid, L-lactide, D-lactide, DL-lactide, meso-lactide, and any optically active isomers, racemates or copolymers thereof, and at least 50%, by weight, of the polypeptide present in said composition is ionically conjugated to said polyester.
A method of synthesizing a composition comprising (a) providing a polyester and a bioactive polypeptide having at least one effective ionogenic amine, wherein said polyester contains a member selected from the group of L-lactic acid, D-lactic acid, DL-lactic acid, .epsilon.-caprolactone, p-dioxanone, .epsilon.-caprolic acid, alkylene oxalate, cycloalkylene oxalate, alkylene succinate, .beta.-hydroxybutyrate, substituted or unsubstituted trimethylene carbonate, 1,5-dioxopan-2-one, 1,4-dioxepan-2-one, glycolide, glycolic acid, L-lactide, D-lactide, DL-lactide, meso-lactide, and any optically active isomers, racemates or copolymers thereof, and (b) ionically conjugating said polyester to said polypeptide to form an ionic molecular conjugate in which the polypeptide is ionically conjugated to the polyester.
Dependencies are inferred from the claim text.