Combination peptide-nanoparticles and delivery systems incorporating same
View Patent ↗Nanoparticles having a core and a corona of ligands covalently linked to the core, wherein differing species of peptides are bound to the nanoparticles and incorporated into various dosage forms.
1. A therapeutic or bioaffecting film delivery system comprising:
(a) one or more film matrices comprising at least one polymer;
(b) a plurality of nanoparticles incorporated in at least one of said film matrices, said nanoparticles comprising:
(i) a core comprising a metal and/or a semiconductor;
(ii) a corona comprising a plurality of ligands covalently linked to the core, wherein at least one of said ligands comprises a carbohydrate moiety; and
(iii) at least a first peptide and a second peptide bound to the corona.
2. The film delivery system according to claim 1 , wherein a molar ratio of said first peptide to said second peptide is in the range 1:100 to 100:1.
3. The film delivery system according to claim 2 , wherein the first and second peptides are bound to the corona such that at least a fraction of the bound peptides is released from the nanoparticle upon contacting the nanoparticle with a physiological solution.
4. The film delivery system according to claim 3 , wherein said release comprises dissociation of bound peptide molecules from the nanoparticle rapidly within minutes followed by further sustained release over a period of at least 2 or more hours.
5. The film delivery system according to claim 4 , wherein said release comprises dissociation of bound peptide molecules from the nanoparticle over a period of at least 4 or more hours.
6. The film delivery system according to claim 5 , wherein the at least one of the first and second peptides is capable of stimulating a reduction in blood glucose levels in a mammalian subject.
7. The film delivery system according to claim 1 , wherein the first and second peptides are reversibly bound to the corona.
8. The film delivery system according to claim 1 , wherein at least one of the first and second peptides is capable of stimulating a physiologic response in a mammalian subject.
9. The film delivery system according to claim 1 , wherein the first and second peptides are individually selected from the group consisting of insulin, GLP-1, and exenatide.
10. The film delivery system according to claim 9 , wherein the insulin is monomeric and/or dimeric human insulin.
11. The film delivery system according to claim 1 , wherein the first and second peptides are individually selected from the group consisting of: insulin, GLP-1, exenatide, IGF1, IGF2, relaxin, INSL5, INSL6, INSL7, pancreatic polypeptide (PP), peptide tyrosine tyrosine (PTT), neuropeptide Y, oxytocin, vasopressin, GnRH, TRH, CRH, GHRH/somatostatin, FSH, LH, TSH, CGA, prolactin, ClIP, ACTH, MSH, enorphins, lipotropin, GH, calcitonin, PTH, inhibin, relaxin, hCG, HPL, glucagons, somatostatin, melatonin, thymosin, thmulin, gastrin, ghrelin, thymopoietin, CCK, GIP secretin, motin VIP, enteroglucagon, IGF-1, IGF-2, leptin, adiponectin, resistin Osteocalcin, renin, EPO, calicitrol, ANP, BNP, chemokines, cytokines, adipokines, PYY (3-36), and oxyntomodulin.
12. The film delivery system according to 1 , wherein the first peptide comprises insulin and the second peptide comprises GLP-1, and wherein a molar ratio of insulin to GLP-1 is in the range of about 5:1 to about 20:1.
13. The film delivery system according to claim 12 , wherein the carbohydrate moiety comprises a galactopyranoside and/or a glucopyranoside.
14. The film delivery system according to claim 1 , wherein the carbohydrate moiety comprises a monosaccharide and/or a disaccharide.
15. The film delivery system according to claim 14 , wherein the carbohydrate moiety comprises a glycoside of: galactose, glucose, glucosamine, N-acetylglucosamine, mannose, fucose, lactose, or a combination thereof.
16. The film delivery system according to claim 1 , wherein the carbohydrate moiety is covalently linked to the core via a linker selected from the group consisting of: sulphur-containing linkers, amino-containing linkers, phosphate-containing linkers and oxygen-containing linkers.
17. The film delivery system according to claim 16 , wherein the linker comprises an alkyl chain of at least two carbons.
18. The film delivery system according to claim 1 , wherein said at least one ligand comprising a carbohydrate moiety is selected from the group consisting of: 2′-thioethyl-α-D-galactopyranoside, 2′-thioethyl-β-D-glucopyranoside, 2′-thioethyl-2-acetamido-2-deoxy-β-D-glucopyranoside, 5′-thiopentanyl-2-deoxy-2-imidazolacetamido-α,β-D-glucopyranoside and 2′-thioethyl-α-D-glucopyranoside, and wherein said at least one ligand comprising a carbohydrate moiety is covalently linked to the core via the thiol sulphur.
19. The film delivery system according to claim 1 , wherein said plurality of ligands covalently linked to the core further comprises at least one non-carbohydrate ligand.
20. The film delivery system according to claim 19 , wherein said at least one non-carbohydrate ligand comprises an amine group.
21. The film delivery system according to claim 19 , wherein said at least one non-carbohydrate ligand comprises 1-amino-17-mercapto-3,6,9,12,15,-pentaoxa-heptadecanol covalently linked to the core via the thiol sulphur.
22. The film delivery system according to claim 19 , wherein said at least one ligand comprising a carbohydrate moiety and said at least one non-carbohydrate ligand are different and are present on the nanoparticle in a ratio of 1:40 to 40:1.
23. The film delivery system according to claim 22 , wherein in the ratio is 1:10 to 10:1.
24. The film delivery system according to claim 23 , wherein the ratio is 1:2 to 2:1.
25. The film delivery system according claim 1 , wherein the corona comprises at least 5 ligands per core.
26. The film delivery system according to claim 25 , wherein the corona comprises about 10 to about 1000 ligands per core.
27. The film delivery system according to claim 26 , wherein the corona comprises 44-106 ligands per core.
28. The film delivery system according to claim 1 , wherein at least 5 or more peptide molecules are bound per core.
29. The film delivery system according to claim 1 , wherein the core comprises a metal selected from the group consisting of: Au, Ag, Cu, Pt, Pd, Fe, Co, Gd, Zn or any combination thereof.
30. The film delivery system according to claim 29 , wherein the core comprises a passive metal selected from the group consisting of: Au, Ag, Pt, Pd and Cu, or any combination thereof.
31. The film delivery system according to claim 29 , wherein the core comprises a combination of metals selected from the group consisting of: Au/Fe, Au/Ag, Au/Cu, Au/Ag/Cu, Au/Pt, Au/Pd, Au/Ag/Cu/Pd, Au/Gd, Au/Fe/Cu, Au/Fe/Gd, Au/Fe/Cu/Gd.
32. The film delivery system according to claim 1 , wherein the core is magnetic.
33. The film delivery system according to claim 1 , wherein the core further comprises an NMR active atom selected from the group consisting of: Mn 2+ , Gd 3+ , Eu 2+ , Cu 2+ , V 2+ , Co 2+ , Ni 2+ , Fe 3+ and lanthanides 3+ .
34. The film delivery system according to claim 1 , wherein the core further comprises a semiconductor.
35. The film delivery system according to claim 34 , wherein the semiconductor is selected from the group consisting of: cadmium selenide, cadmium sulphide, cadmium tellurium and zinc sulphide.
36. The film delivery system according to claim 1 , wherein the core comprises a metal oxide coated with a metal selected from the group consisting of: Au, Ag, Cu, Pt, Pd and Zn, or any combination thereof.
37. The film delivery system according to claim 36 , wherein said metal oxide is of the formula XFe 2 O 4 , where X is a metal selected from the group consisting of: Fe, Mn and Co.
38. The film delivery system according to claim 1 , wherein the nanoparticle cores have an average diameter in the range of about 0.5 nm to about 50 nm.
39. The film delivery system according to claim 38 , wherein said average diameter is in the range of about 1 nm to about 10 nm.
40. The film delivery system according to claim 39 , wherein said average diameter is in the range of about 1.5 nm to about 2 nm.
41. The film delivery system according to claim 40 , wherein said divalent component is present in an amount sufficient to produce a stabilizing effect.
42. The film delivery system according to claim 41 , wherein said divalent component is present in an amount of about 0.5 to about 2.0 equivalents of said metal in said core.
43. The film delivery system according to claim 42 , wherein said divalent component is present in an amount of about 0.75 to about 1.5 equivalents of said metal in said core.
44. The film delivery system according to claim 1 , wherein the nanoparticle core comprises a divalent component.
45. The film delivery system according to claim 44 , wherein said divalent component is present in the corona of the nanoparticle.
46. The film delivery system according to claim 45 , wherein said divalent component is selected from the group consisting of zinc, magnesium, copper, nickel, cobalt, cadmium, or calcium, their oxides and salts thereof.
47. The film delivery system according to claim 46 , wherein said zinc is selected from: Zn 2+ and ZnO.
48. The film delivery system according to claim 47 , wherein the zinc comprises ZnCl 2 .
49. The film delivery system according to claim 44 , wherein said divalent component is selected from the group consisting of divalent metals, divalent metal compounds or other components having a divalent state.
50. The film delivery system according to claim 44 , wherein the first and second peptides are reversibly bound to the corona.
51. The film delivery system according to claim 50 , wherein the first and second peptides are bound to the corona such that at least a fraction of the bound peptides is released from the nanoparticle upon contacting the nanoparticle with a physiological solution.
52. The film delivery system according to claim 51 , wherein said release comprises dissociation of bound peptide molecules from the nanoparticle rapidly within minutes followed by further sustained release over a period of at least 2 or more hours.
53. The film delivery system according to claim 52 , wherein said release comprises dissociation of bound peptide molecules from the nanoparticle over a period of at least 4 or more hours.
54. The film delivery system according to claim 52 , wherein at least one of the first and second peptides is capable of stimulating a physiologic response in a mammalian subject.
55. The film delivery system according to claim 52 , wherein the first and second peptides are insulin and GLP-1.
56. The film delivery system according to claim 52 , wherein the first peptide comprises insulin and the second peptide comprises GLP-1, and wherein a molar ratio of insulin to GLP-1 is in the range of about 5:1 to about 20:1.
57. The film delivery system according to claim 1 , wherein the one or more film matrices are formed by evaporating a solvent carrier from the matrices to form a visco-elastic film within the first 10 minutes of applying heat or radiation energy whereby the nanoparticles are locked in or substantially prevented from migrating with the matrices to provide a film delivery system with a substantially uniform distribution of the nanoparticles.
58. The film delivery system of claim 57 , wherein said solvent is selected from the group consisting of water, polar organic solvent, and combinations thereof.
59. The film delivery system according to claim 1 , wherein the one or more film matrices comprise two film layers having different release properties.
60. The film delivery system according to claim 1 , wherein the one or more film matrices comprise at least one water soluble or water swellable polymer.
61. The film delivery system according to claim 60 , wherein the at least one water soluble or water swellable polymer is selected from the group consisting of polyethylene oxide, cellulose, a cellulose derivative, pullulan, polyvinyl pyrrolidone, polyvinyl alcohol, polyethylene glycol, carboxyvinyl copolymers, hydroxypropylmethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, sodium alginate, xanthan gum, tragancanth gum, guar gum, acacia gum, arabic gum, polyacrylic acid, methylmethacrylate copolymer, carboxyvinyl copolymers, starch, gelatin, and combinations thereof, alone or in combination with polyethylene oxide.
62. The film delivery system of claim 60 , wherein the at least one water soluble or water swellable polymer is selected from the group consisting of ethylcellulose, hydroxypropyl ethyl cellulose, cellulose acetate phthalate, hydroxypropyl methyl cellulose phthalate, polyvinylacetatephthalates, phthalated gelatin, crosslinked gelatin, poly(lactic acid)/poly(glycolic acid)/polyethyleneglycol copolymers, polycaprolactone and combinations thereof.
63. The film delivery system of claim 60 , wherein the at least one water soluble or water swellable polymer is selected from the group consisting selected from the group consisting of methylmethacrylate copolymer, polyacrylic acid polymer, poly(glycolic acid) (PGA), poly(lactic acid) (PLA), poly(lactic acid)/poly(glycolic acid)/polyethyleneglycol copolymers, polydioxanoes, polyoxalates, poly({acute over (α)}-esters), polyanhydrides, polyacetates, polycaprolactones, poly(orthoesters), polyamino acides, polyaminocarbonates, polyurethanes, polycarbonates, polyamides, poly(alkyl cyanoacrylates), and mixtures and copolymers thereof.
64. The film delivery system of claim 60 , wherein said at least one water soluble or water swellable polymer comprises a polymer selected from the group consisting of sodium alginate, xanthan gum, tragancanth gum, guar gum, acacia gum, arabic gum, starch, gelatin, carageenan, locust bean gum, dextran, gellan gum and combinations thereof.
65. The film delivery system of claim 60 , wherein said at least one water soluble or water swellable polymer comprises a polymer selected from the group consisting of ethylcellulose, hydroxypropyl ethyl cellulose, cellulose acetate phthalate, hydroxypropyl methyl cellulose phthalate, polyvinylacetatephthalates, phthalated gelatin, crosslinked gelatin, poly(lactic acid)/poly(glycolic acid)/polyethyleneglycol copolymers, polycaprolactone, methylmethacrylate copolymer, polyacrylic acid polymer, poly(glycolic acid) (PGA), poly(lactic acid) (PLA), poly(lactic acid)/poly(glycolic acid)/polyethyleneglycol copolymers, polydioxanoes, polyoxalates, poly({acute over (α)}-esters), polyanhydrides, polyacetates, polycaprolactones, poly(orthoesters), polyamino acides, polyaminocarbonates, polyurethanes, polycarbonates, polyamides, poly(alkyl cyanoacrylates), sodium alginate, xanthan gum, tragancanth gum, guar gum, acacia gum, arabic gum, starch, gelatin, carageenan, locust bean gum, dextran, gellan gum and combinations thereof.
66. The film delivery system according to claim 1 , wherein the nanoparticles are uniformly distributed within the at least one or more film matrices.
67. The film delivery system according to claim 1 , wherein the nanoparticles are distributed within said one of matrices such that the percent by weight variance of nanoparticles or peptide carried by the nanoparticles per unit volume of film does not vary more than about 10%.
68. The film delivery system of claim 67 , wherein the permeation or penetration enhancing agent is selected from the group consisting of medium chain mono and diacylglycerol fatty acid derivatives, synthetic and natural surfactants, medium chain fatty acids and salts and esters thereof, bile salts, chelating agents, detergents, phospholipids, lecithins, cetomacrogels, glycerol and polyalkylene glycols and their esters, salicylates, polysorbates, alkylsulfoxides, alkanols, fatty acids and their corresponding esters and alcohols, urea and cyclic ureas, pyrrolidone derivatives, alkyl and cyclic amides, anionic surfactants, cationic surfactants, non-ionic surfactants, ketones, alkyl oxides, cycloalkene oxides, oils, alkyl glycosides, zonula occuludens, alcohols, and combinations thereof.
69. The film delivery system according to claim 67 , wherein the permeation enhancing agent is coupled to the nanoparticle core and/or the nanoparticle corona.
70. The film delivery system according to claim 1 , wherein the total water content is about 10% or less by weight of the delivery system.
71. The film delivery system according to claim 1 , wherein the nanoparticles are incorporated or deposited on the surface of the one or more film matrices.
72. The film delivery system according to claim 1 , further comprising a permeation and/or penetration enhancing agent.
73. The film delivery system according to claim 1 , wherein the nanoparticles are distributed in the film such that the percent weight of nanoparticles or active carried by the nanoparticle per unit volume does not vary by more than about ten percent.
74. The film delivery system according to claim 1 , wherein said film is divided into individual films of approximately equal size, and wherein the amount by weight of nanoparticles of individual films has a variance of no more than about ten percent between individual films.