IP Library Patent Application 11002842
Patent Application
App. No. 11/002,842

Methods for micronization of hydrophobic drugs

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Patent No.
US None
App. No.
11/002,842
Abstract

The invention involves methods and products related to the micronization of hydrophobic drugs. A method of micronizing hydrophobic drugs using a set of solutions including an aqueous solution is provided. The invention also relates to products of micronized hydrophobic drugs and related methods of use.

Claims (101)

1 - 49 . (canceled)

50 . A method for micronizing a hydrophobic agent, comprising:

dissolving a hydrophobic agent in an effective amount of a first solvent, wherein the first solvent is free of polymer, wherein the hydrophobic agent and the solvent form a mixture having a continuous phase,

introducing a second solvent into the mixture, and

introducing an aqueous solution into the mixture wherein the aqueous solution causes precipitation of the hydrophobic agent to produce a composition of micronized hydrophobic agent having an average particle size of 1 micron or less, and wherein the hydrophobic agent is selected from the group consisting of anticonvulsant, antidiabetic, antifungal, antihypertensive, anti-infective, antimicrobial, antimycotic, antineoplastic, anti-cancer, anti-epileptic, antiparasitic, antiproliferative, antiviral, blood glucose regulator, diuretic, hormone, hypoglycemic, hypotensive, immunomodulator, immunoregulator, immunosuppressant, mood regulator, psychotropic, dyes, and imaging agents.

51 . A method for micronizing a hydrophobic agent, comprising:

dissolving a hydrophobic agent in an effective amount of a first solvent, wherein the first solvent is free of polymer, wherein the hydrophobic agent and the solvent form a mixture having a continuous phase,

introducing a second solvent into the mixture, and

introducing an aqueous solution into the mixture wherein the aqueous solution causes precipitation of the hydrophobic agent to produce a composition of micronized hydrophobic agent having an average particle size of 1 micron or less, and wherein the hydrophobic agent is an antineoplastic, anti-cancer, or antiproliferative agent.

52 . A method for micronizing a hydrophobic agent, comprising:

dissolving a hydrophobic agent in an effective amount of a first solvent, wherein the first solvent is free of polymer, wherein the hydrophobic agent and the solvent form a mixture having a continuous phase,

introducing a second solvent into the mixture, and

introducing an aqueous solution into the mixture wherein the aqueous solution causes precipitation of the hydrophobic agent to produce a composition of micronized hydrophobic agent having an average particle size of 1 micron or less, and wherein the hydrophobic agent is an antifungal or antimycotic agent.

53 . A method for micronizing a hydrophobic agent, comprising:

dissolving a hydrophobic agent in an effective amount of a first solvent, wherein the first solvent is free of polymer, wherein the hydrophobic agent and the solvent form a mixture having a continuous phase,

introducing a second solvent into the mixture, and

introducing an aqueous solution into the mixture wherein the aqueous solution causes precipitation of the hydrophobic agent to produce a composition of micronized hydrophobic agent having an average particle size of 1 micron or less, and wherein the hydrophobic agent is an anti-infective or antimicrobial agent.

54 . A method for micronizing a hydrophobic agent, comprising:

dissolving a hydrophobic agent in an effective amount of a first solvent, wherein the first solvent is free of polymer, wherein the hydrophobic agent and the solvent form a mixture having a continuous phase,

introducing a second solvent into the mixture, and

introducing an aqueous solution into the mixture wherein the aqueous solution causes precipitation of the hydrophobic agent to produce a composition of micronized hydrophobic agent having an average particle size of 1 micron or less, and wherein the hydrophobic agent is a dye or an imaging agent.

55 . The method of claim 51 , wherein the anti-cancer agent is Paclitaxel.

56 . The method of claim 50 , further comprising preparing microparticles by spray drying the micronized hydrophobic agent.

57 . The method of claim 50 , further comprising preparing microparticles by performing phase inversion nanoencapsulation (PIN) on the micronized hydrophobic agent.

58 . The method of claim 50 , wherein the second solvent is an alcohol.

59 . The method of claim 50 , wherein greater than 90% of the micronized hydrophobic agent have a particle size less than 1 micron.

60 . A method for micronizing a hydrophobic agent, comprising:

dissolving a hydrophobic agent in an effective amount of a first solvent, with a polymer, wherein the hydrophobic agent and the first solvent form a mixture having a continuous phase, introducing a second solvent into the mixture, and introducing an aqueous solution into the mixture wherein the aqueous solution causes precipitation of the hydrophobic agent to produce a composition of micronized hydrophobic agent having an average particle size of 1 micron or less, and wherein the hydrophobic agent is selected from the group consisting of anticonvulsant, antidiabetic, antifungal, anti-infective, antimicrobial, antihypertensive, antimycotic, antineoplastic, anti-cancer, anti-epileptic, antiparasitic, antiproliferative, antiviral, blood glucose regulator, diuretic, hormone, hypoglycemic, hypotensive, immunomodulator, immunoregulator, immunosuppressant, mood regulator, psychotropic, dyes, and imaging agents.

61 . A method for micronizing a hydrophobic agent, comprising:

dissolving a hydrophobic agent in an effective amount of a first solvent, with a polymer, wherein the hydrophobic agent and the first solvent form a mixture having a continuous phase, introducing a second solvent into the mixture, and introducing an aqueous solution into the mixture wherein the aqueous solution causes precipitation of the hydrophobic agent to produce a composition of micronized hydrophobic agent having an average particle size of 1 micron or less, and wherein the hydrophobic agent is an antineoplastic, anti-cancer, or antiproliferative agent.

62 . A method for micronizing a hydrophobic agent, comprising:

dissolving a hydrophobic agent in an effective amount of a first solvent, with a polymer, wherein the hydrophobic agent and the first solvent form a mixture having a continuous phase, introducing a second solvent into the mixture, and introducing an aqueous solution into the mixture wherein the aqueous solution causes precipitation of the hydrophobic agent to produce a composition of micronized hydrophobic agent having an average particle size of 1 micron or less, and wherein the hydrophobic agent is an antifungal or antimycotic agent.

63 . A method for micronizing a hydrophobic agent, comprising:

dissolving a hydrophobic agent in an effective amount of a first solvent, with a polymer, wherein the hydrophobic agent and the first solvent form a mixture having a continuous phase, introducing a second solvent into the mixture, and introducing an aqueous solution into the mixture wherein the aqueous solution causes precipitation of the hydrophobic agent to produce a composition of micronized hydrophobic agent having an average particle size of 1 micron or less, and wherein the hydrophobic agent is an anti-infective or antimicrobial agent.

64 . A method for micronizing a hydrophobic agent, comprising:

dissolving a hydrophobic agent in an effective amount of a first solvent, with a polymer, wherein the hydrophobic agent and the first solvent form a mixture having a continuous phase, introducing a second solvent into the mixture, and introducing an aqueous solution into the mixture wherein the aqueous solution causes precipitation of the hydrophobic agent to produce a composition of micronized hydrophobic agent having an average particle size of 1 micron or less, and wherein the hydrophobic agent is a dye or an imaging agent.

65 . The method of claim 61 , wherein the anti-cancer agent is Paclitaxel.

66 . The method of claim 60 , wherein the preparation contains less than 5% polymer.

67 . The method of claim 60 , further comprising preparing microparticles by performing phase inversion nanoencapsulation on the micronized hydrophobic agent.

68 . The method of claim 60 , wherein the second solvent is an alcohol.

69 . The method of claim 60 , wherein greater than 90% of the micronized hydrophobic agent have a particle size less than 1 micron.

70 . A preparation of micronized hydrophobic agent prepared according to the method of claim 50 .

71 . A preparation of micronized hydrophobic agent prepared according to the method of claim 60 .

72 . A composition, comprising a preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer carrier and is free of surfactant, and wherein the hydrophobic agent is selected from the group consisting of anticonvulsant, antidiabetic, antifingal, antihypertensive, anti-infective, antimicrobial, antimycotic, antineoplastic, anti-cancer, anti-epileptic, antiparasitic, antiproliferative, antiviral, blood glucose regulator, diuretic, hormone, hypoglycemic, hypotensive, immunomodulator, immunoregulator, immunosuppressant, mood regulator, psychotropic, dyes, and imaging agents.

73 . A composition, comprising a preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer carrier and is free of surfactant, and wherein the hydrophobic agent is an antineoplastic, anti-cancer, or antiproliferative agent.

74 . A composition, comprising a preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer carrier and is free of surfactant, and wherein the hydrophobic agent is an antifungal or antimycotic agent.

75 . A composition, comprising a preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer carrier and is free of surfactant, and wherein the hydrophobic agent is an anti-infective or antimicrobial agent.

76 . A composition, comprising a preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer carrier and is free of surfactant, and wherein the hydrophobic agent is a dye or an imaging agent.

77 . The composition of claim 73 , wherein the anti-cancer agent is Paclitaxel.

78 . The composition of claim 72 , wherein the wherein the preparation is free of polymer carrier.

79 . A composition, comprising a preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is free of polymer carrier and wherein the crystallinity of the micronized hydrophobic agent is at least 50% of the crystallinity of the non-micronized hydrophobic agent, and wherein the hydrophobic agent is selected from the group consisting of anticonvulsant, antidiabetic, antifungal, antihypertensive, anti-infective, antimicrobial, antimycotic, antineoplastic, anti-cancer, anti-epileptic, antiparasitic, antiproliferative, antiviral, blood glucose regulator, diuretic, hormone, hypoglycemic, hypotensive, immunomodulator, immunoregulator, immunosuppressant, mood regulator, psychotropic, dyes, and imaging agents.

80 . A composition, comprising a preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is free of polymer carrier and wherein the crystallinity of the micronized hydrophobic agent is at least 50% of the crystallinity of the non-micronized hydrophobic agent, and wherein the hydrophobic agent is an antineoplastic, anti-cancer, or antiproliferative agent.

81 . A composition, comprising a preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is free of polymer carrier and wherein the crystallinity of the micronized hydrophobic agent is at least 50% of the crystallinity of the non-micronized hydrophobic agent, and wherein the hydrophobic agent is an antifungal or antimycotic agent.

82 . A composition, comprising a preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is free of polymer carrier and wherein the crystallinity of the micronized hydrophobic agent is at least 50% of the crystallinity of the non-micronized hydrophobic agent, and wherein the hydrophobic agent is an anti-infective or antimicrobial agent.

83 . A composition, comprising a preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is free of polymer carrier and wherein the crystallinity of the micronized hydrophobic agent is at least 50% of the crystallinity of the non-micronized hydrophobic agent, and wherein the hydrophobic agent is a dye or an imaging agent.

84 . The composition of claim 80 , wherein the anti-cancer agent is Paclitaxel.

85 . The composition of claim 79 , wherein the crystallinity is at least 75%.

86 . The composition of claim 79 , wherein the crystallinity is greater than 90%.

87 . A method for delivering an agent to a subject, comprising:

orally administering a solid preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer and is free of surfactant, and wherein the hydrophobic agent is selected from the group consisting of anticonvulsant, antidiabetic, antifungal, antihypertensive, anti-infective, antimicrobial, antimycotic, antineoplastic, anti-cancer, anti-epileptic, antiparasitic, antiproliferative, antiviral, blood glucose regulator, diuretic, hormone, hypoglycemic, hypotensive, immunomodulator, immunoregulator, immunosuppressant, mood regulator, psychotropic, dyes, and imaging agents.

88 . A method for delivering an agent to a subject, comprising:

orally administering a solid preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer and is free of surfactant, and wherein the hydrophobic agent is an antineoplastic, anti-cancer, or antiproliferative agent.

89 . A method for delivering an agent to a subject, comprising:

orally administering a solid preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer and is free of surfactant, and wherein the hydrophobic agent is an antifungal or antimycotic agent.

90 . A method for delivering an agent to a subject, comprising:

orally administering a solid preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer and is free of surfactant, and wherein the hydrophobic agent is an anti-infective or antimicrobial agent.

91 . A method for delivering an agent to a subject, comprising:

orally administering a solid preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer and is free of surfactant, and wherein the hydrophobic agent is a dye or an imaging agent.

92 . The method of claim 88 , wherein the anti-cancer agent is Paclitaxel.

93 . The method of claim 87 , wherein the bioactivity of the hydrophobic agent is retained.

94 . The method of claim 87 , wherein there is at least a 5% increase in the relative bioavailability of the micronized hydrophobic agent as compared to the non-micronized hydrophobic agent.

95 . The method of claim 87 , wherein the preparation is free of polymer.

96 . The method of claim 87 , wherein the micronized hydrophobic agent is microencapsulated by phase inversion nanoencapsulation.

97 . A method for delivering an agent to a subject, comprising:

administering microparticles of a micronized hydrophobic agent encapsulated by phase inversion nanoencapsulation having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer and is free of surfactant, and wherein the hydrophobic agent is selected from the group consisting of anticonvulsant, antidiabetic, antifungal, antihypertensive, anti-infective, antimicrobial, antimycotic, antineoplastic, anti-cancer, anti-epileptic, antiparasitic, antiproliferative, antiviral, blood glucose regulator, diuretic, hormone, hypoglycemic, hypotensive, immunomodulator, immunoregulator, immunosuppressant, mood regulator, psychotropic, dyes, and imaging agents.

98 . A method for delivering an agent to a subject, comprising:

administering microparticles of a micronized hydrophobic agent encapsulated by phase inversion nanoencapsulation having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer and is free of surfactant, and wherein the hydrophobic agent is an antineoplastic, anti-cancer, or antiproliferative agent.

99 . A method for delivering an agent to a subject, comprising:

administering microparticles of a micronized hydrophobic agent encapsulated by phase inversion nanoencapsulation having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer and is free of surfactant, and wherein the hydrophobic agent is an antifungal or antimycotic agent.

100 . A method for delivering an agent to a subject, comprising:

administering microparticles of a micronized hydrophobic agent encapsulated by phase inversion nanoencapsulation having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer and is free of surfactant, and wherein the hydrophobic agent is an anti-infective or antimicrobial agent.

101 . A method for delivering an agent to a subject, comprising:

administering microparticles of a micronized hydrophobic agent encapsulated by phase inversion nanoencapsulation having an average particle size of less than 1 micron, wherein the preparation is composed of less than 5% polymer and is free of surfactant, and wherein the hydrophobic agent is a dye or an imaging agent.

102 . The method of claim 98 , wherein the anti-cancer agent is Paclitaxel.

103 . The method of claim 97 , wherein the microparticles are administered orally.

104 . The method of claim 97 , wherein the bioactivity of the hydrophobic agent is retained.

105 . The method of claim 97 , wherein there is at least a 5% increase in the relative bioavailability of the micronized hydrophobic agent as compared to the non-encapsulated micronized hydrophobic agent.

106 . The method of claim 97 , wherein the preparation is free of polymer.

107 . A method for achieving 100% bioactivity comprising:

orally administering to the subject a solid preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein 100% of the orally administered agent is bioactive, and wherein the hydrophobic agent is selected from the group consisting of anticonvulsant, antidiabetic, antifingal, antihypertensive, anti-infective, antimicrobial, antimycotic, antineoplastic, anti-cancer, anti-epileptic, antiparasitic, antiproliferative, antiviral, blood glucose regulator, diuretic, hormone, hypoglycemic, hypotensive, immunomodulator, immunoregulator, immunosuppressant, mood regulator, psychotropic, dyes, and imaging agents.

108 . A method for achieving 100% bioactivity comprising:

orally administering to the subject a solid preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein 100% of the orally administered agent is bioactive, and wherein the hydrophobic agent is an antineoplastic, anti-cancer, or antiproliferative agent.

109 . A method for achieving 100% bioactivity comprising:

orally administering to the subject a solid preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein 100% of the orally administered agent is bioactive, and wherein the hydrophobic agent is an antifungal or antimycotic agent.

110 . A method for achieving 100% bioactivity comprising:

orally administering to the subject a solid preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein 100% of the orally administered agent is bioactive, and wherein the hydrophobic agent is an anti-infective or antimicrobial agent.

111 . A method for achieving 100% bioactivity comprising:

orally administering to the subject a solid preparation of micronized hydrophobic agent having an average particle size of less than 1 micron, wherein 100% of the orally administered agent is bioactive, and wherein the hydrophobic agent is a dye or an imaging agent.

112 . The method of claim 108 , wherein the anti-cancer agent is Paclitaxel.

113 . The method of claim 107 , wherein the preparation is composed of less than 5% polymer and is free of surfactant.

114 . The method of claim 107 , wherein the preparation is free of polymer.

Assignments (2)
CONFIRMATORY LICENSE Recorded Jun 7, 2016
From: BROWN UNIVERSITY
To: NATIONAL INSTITUTES OF HEALTH (NIH), U.S. DEPT. OF HEALTH AND HUMAN SERVICES (DHHS), U.S. GOVERNMENT
Reel/Frame 038904/0136 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 30, 2004
From: MATHIOWITZ, EDITH; THANOS, CHRISTOPHER; LIU, ZHI
To: BROWN UNIVERSITY RESEARCH FOUNDATION
Reel/Frame 016051/0620 →