WO2003045391A1 - Pharmaceutical formulations comprising an immune response modifier - Google Patents
Pharmaceutical formulations comprising an immune response modifier Download PDFInfo
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- WO2003045391A1 WO2003045391A1 PCT/US2002/038190 US0238190W WO03045391A1 WO 2003045391 A1 WO2003045391 A1 WO 2003045391A1 US 0238190 W US0238190 W US 0238190W WO 03045391 A1 WO03045391 A1 WO 03045391A1
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- imidazo
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/4353—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems
- A61K31/437—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
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- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/4353—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems
- A61K31/4355—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having oxygen as a ring hetero atom
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- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/4353—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems
- A61K31/4365—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system having sulfur as a ring hetero atom, e.g. ticlopidine
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- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/4353—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems
- A61K31/4375—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a six-membered ring having nitrogen as a ring heteroatom, e.g. quinolizines, naphthyridines, berberine, vincamine
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- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/47—Quinolines; Isoquinolines
- A61K31/4738—Quinolines; Isoquinolines ortho- or peri-condensed with heterocyclic ring systems
- A61K31/4745—Quinolines; Isoquinolines ortho- or peri-condensed with heterocyclic ring systems condensed with ring systems having nitrogen as a ring hetero atom, e.g. phenantrolines
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- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
- A61K47/10—Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
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- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
- A61K47/14—Esters of carboxylic acids, e.g. fatty acid monoglycerides, medium-chain triglycerides, parabens or PEG fatty acid esters
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- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/32—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers, poly(meth)acrylates, or polyvinyl pyrrolidone
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- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
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- A61K47/44—Oils, fats or waxes according to two or more groups of A61K47/02-A61K47/42; Natural or modified natural oils, fats or waxes, e.g. castor oil, polyethoxylated castor oil, montan wax, lignite, shellac, rosin, beeswax or lanolin
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0014—Skin, i.e. galenical aspects of topical compositions
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- A61P17/02—Drugs for dermatological disorders for treating wounds, ulcers, burns, scars, keloids, or the like
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- A61P17/12—Keratolytics, e.g. wart or anti-corn preparations
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- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/02—Immunomodulators
Definitions
- the present invention is directed to pharmaceutical formulations comprising at least one immune response modifier chosen from imidazoquinoline amines, imidazopyridine amines, 6,7-fused cycloalkylimidazopyridine amines, 1,2-bridged imidazoquinoline amines, thiazoloquinoline amines, oxazoloquinoline amines, thiazolopyridine amines, oxazolopyridine amines, imidazonaphthyridine amines, imidazotetrahydronaphthyridme amines, and thiazolonaphthyridine amines.
- Embodiments of the present invention are directed to topical formulations for application to the skin of a mammal.
- Other embodiments of the present invention are directed to methods for treating dermal diseases.
- imidazoquinoline amine imidazopyridine amine, 6,7-fused cycloalkylimidazopyridine amine, 1,2-bridged imidazoquinoline amine, thiazoloquinoline amine, oxazoloquinoline amine, thiazolopyridine amine, oxazolopyridine amine, imidazonaphthyridine amine, imidazotetrahydronaphthyridme amine, and thiazolonaphthyridine amine compounds have demonstrated potent immunostimulating, antiviral and antitumor (including anticancer) activity, and have also been shown to be useful as vaccine adjuvants.
- IRM immune response modifier
- IRM compounds The mechanism for the antiviral and antitumor activity of these IRM compounds is thought to be due in substantial part to enhancement of the immune response by induction of various important cytokines (e.g., interferons, interleukins, tumor necrosis factor, etc.).
- cytokines e.g., interferons, interleukins, tumor necrosis factor, etc.
- Such compounds have been shown to stimulate a rapid release of certain monocyte/macrophage-derived cytokines and are also capable of stimulating B cells to secrete antibodies which play an important role in these IRM compounds' antiviral and antitumor activities.
- One of the predominant immunostimulating responses to these compounds is the induction of interferon (IFN)- ⁇ production, which is believed to be very important in the acute antiviral and antitumor activities seen.
- IFN interferon
- up regulation of other cytokines such as, for example, tumor necrosis factor (TNF), Interleukin-1 (IL-1) and IL-6 also have potentially beneficial activities and are believed to contribute to the antiviral and antitumor properties of these compounds.
- TNF tumor necrosis factor
- IL-1 Interleukin-1
- IL-6 also have potentially beneficial activities and are believed to contribute to the antiviral and antitumor properties of these compounds.
- IRMs the ability to provide therapeutic benefit via topical application of an IRM compound for treatment of a particular condition at a particular location may be hindered by a variety of factors. These factors include irritation of the skin to which the formulation is applied, formulation wash away, insolubility and/or degradation of the IRM compound in the formulation, physical instability of the formulation (e.g., separation of components, thickening, precipitation/agglomerization of active ingredient, and the like), poor permeation, and undesired systemic delivery of the topically applied IRM compound. Accordingly, there is a continuing need for new methods and formulations to provide the greatest therapeutic benefit from this class of compounds.
- the present invention is directed to a pharmaceutical formulation comprising an immune response modifier selected from imidazoquinoline amines, imidazotetrahydroquinoline amines, imidazopyridine amines, 6,7-fused cycloalkylimidazopyridine amines, 1,2-bridged imidazoquinoline amines, thiazoloquinoline amines, oxazoloquinoline amines, thiazolopyridine amines, oxazolopyridine amines, imidazonaphthyridine amines, imidazotetrahydronaphthyridme amines, and thiazolonaphthyridine amines; a fatty acid; a hydrophobic, aprotic component miscible with the fatty acid and comprising a hydrocarbyl group of 7 or more carbon atoms; and a hydrophilic viscosity enhancing agent selected from cellulose ethers and carbomers.
- the pharmaceutical formulation comprises an immune response modifier selected from imidazonaphthyridine amines, imidazotetrahydronaphthyridme amines, and thiazolonaphthyridine amines; a fatty acid; and a hydrophobic, aprotic component miscible with the fatty acid and comprising a hydrocarbyl group of 7 or more carbon atoms.
- an immune response modifier selected from imidazonaphthyridine amines, imidazotetrahydronaphthyridme amines, and thiazolonaphthyridine amines
- a fatty acid and a hydrophobic, aprotic component miscible with the fatty acid and comprising a hydrocarbyl group of 7 or more carbon atoms.
- the formulation can further comprise one or more of a preservative system, an emulsifier, and water.
- the present invention is directed to a method of treatment of a dermal associated condition comprising applying to skin a topical formulation comprising an immune response modifier selected from imidazoquinoline amines, imidazotetrahydroquinoline amines, imidazopyridine amines, 6,7-fused cycloalkylimidazopyridine amines, 1,2-bridged imidazoquinoline amines, thiazoloquinoline amines, oxazoloquinoline amines, thiazolopyridine amines, oxazolopyridine amines, imidazonaphthyridine amines, imidazotetrahydronaphthyridme amines, and thiazolonaphthyridine amines; a fatty acid; a hydrophobic, aprotic component miscible with the fatty acid and comprising a hydrocarbyl group of 7 or more carbon atoms; and a hydrophilic viscos
- the method of treatment of a dermal associated condition comprises applying to skin a formulation comprising an immune response modifier selected from imidazonaphthyridine amines, imidazotetrahydronaphthyridme amines, and thiazolonaphthyridine amines; a fatty acid; and a hydrophobic, aprotic component miscible with the fatty acid and comprising a hydrocarbyl group of 7 or more carbon atoms.
- an immune response modifier selected from imidazonaphthyridine amines, imidazotetrahydronaphthyridme amines, and thiazolonaphthyridine amines
- a fatty acid and a hydrophobic, aprotic component miscible with the fatty acid and comprising a hydrocarbyl group of 7 or more carbon atoms.
- the method of treatment of a dermal associated condition comprises applying to skin a formulation comprising an immune response modifier selected from imidazonaphthyridine amines, imidazotetrahydronaphthyridme amines, and thiazolonaphthyridine amines; a fatty acid; a hydrophobic, aprotic component miscible with the fatty acid and comprising a hydrocarbyl group of 7 or more carbon atoms; and further comprising one or more of a preservative system, an emulsifier, and water.
- an immune response modifier selected from imidazonaphthyridine amines, imidazotetrahydronaphthyridme amines, and thiazolonaphthyridine amines
- a fatty acid a hydrophobic, aprotic component miscible with the fatty acid and comprising a hydrocarbyl group of 7 or more carbon atoms
- the dermal associated condition is selected from actinic keratosis, postsurgical scars, basal cell carcinoma, atopic dermatitis, and warts.
- the present invention is directed to a method for delivering an immune response modifier to a dermal surface, the method comprising the steps of selecting a formulation comprising a compound selected from imidazoquinoline amines, imidazotetrahydroquinoline amines, imidazopyridine amines, 6,7-fused cycloalkylimidazopyridine amines, 1,2-bridged imidazoquinoline amines, thiazoloquinoline amines, oxazolo-quinoline amines, thiazolopyridine amines, oxazolopyridine amines, imidazonaphthyridine amines, imidazotetrahydronaphthyridme amines, and thiazolonaphthyridine amines; a
- the selected formulation comprises an immune response modifier selected from imidazonaphthyridine amines, imidazotetrahydronaphthyridme amines, and thiazolonaphthyridine amines; a fatty acid; and a hydrophobic, aprotic component miscible with the fatty acid and comprising a hydrocarbyl group of 7 or more carbon atoms.
- an immune response modifier selected from imidazonaphthyridine amines, imidazotetrahydronaphthyridme amines, and thiazolonaphthyridine amines
- a fatty acid and a hydrophobic, aprotic component miscible with the fatty acid and comprising a hydrocarbyl group of 7 or more carbon atoms.
- the present invention is directed to a fonnulation comprising an immune response modifier compound selected from imidazoquinoline amines, imidazotetrahydroquinoline amines, imidazopyridine amines, 6,7-fused cycloalkylimidazopyridine amines, 1,2-bridged imidazoquinoline amines, thiazoloquinoline amines, oxazoloquinoline amines, thiazolopyridine amines, oxazolopyridine amines, imidazonaphthyridine amines, imidazotetrahydronaphthyridme amines, and thiazolonaphthyridine amines; a fatty acid; a hydrophobic, aprotic component miscible with the fatty acid and comprising a hydrocarbyl group of 7 or more carbon atoms, and a hydrophilic viscosity enhancing agent selected from cellulose ethers and carbo
- the IRM compound can be chosen from imidazoquinoline amines, for example, lH-imidazo[4,5-c]quinolin-4-amines defined by one of Formulas I-V below:
- R ⁇ is chosen from alkyl of one to ten carbon atoms, hydroxyalkyl of one to six carbon atoms, acyloxyalkyl wherein the acyloxy moiety is alkanoyloxy of two to four carbon atoms or benzoyloxy, and the alkyl moiety contains one to six carbon atoms, benzyl, (phenyl)ethyl and phenyl, said benzyl, (phenyl)ethyl or phenyl substituent being optionally substituted on the benzene ring by one or two moieties independently chosen from alkyl of one to four carbon atoms, alkoxy of one to four carbon atoms and halogen, with the proviso that if said benzene ring is substituted by two of said moieties, then said moieties together contain no more than six carbon atoms;
- R 21 is chosen from hydrogen, alkyl of one to eight carbon atoms, benzyl, (phenyl)ethyl and phenyl, the benzyl, (phenyl)ethyl or phenyl substituent being optionally substituted on the benzene ring by one or two moieties independently chosen from alkyl of one to four carbon atoms, alkoxy of one to four carbon atoms and halogen, with the proviso that when the benzene ring is substituted by two of said moieties, then the moieties together contain no more than six carbon atoms; and each Ri is independently chosen from alkoxy of one to four carbon atoms, halogen, and alkyl of one to four carbon atoms, and n is an integer from 0 to 2, with the proviso that if n is 2, then said R ⁇ groups together contain no more than six carbon atoms;
- R 12 is chosen from straight chain or branched chain alkenyl containing two to ten carbon atoms and substituted straight chain or branched chain alkenyl containing two to ten carbon atoms, wherein the substituent is chosen from straight chain or branched chain alkyl containing one to four carbon atoms and cycloalkyl containing three to six carbon atoms; and cycloalkyl containing three to six carbon atoms substituted by straight chain or branched chain alkyl containing one to four carbon atoms; and
- R 2 is chosen from hydrogen, straight chain or branched chain alkyl containing one to eight carbon atoms, benzyl, (phenyl)ethyl and phenyl, the benzyl, (phenyl)ethyl or phenyl substituent being optionally substituted on the benzene ring by one or two moieties independently chosen from straight chain or branched chain alkyl containing one to four carbon atoms, straight chain or branched chain alkoxy containing one to four carbon atoms, and halogen, with the proviso that when the benzene ring is substituted by two such moieties, then the moieties together contain no more than six carbon atoms; and each R 2 is independently chosen from straight chain or branched chain alkoxy containing one to four carbon atoms, halogen, and straight chain or branched chain alkyl containing one to four carbon atoms, and n is an integer from zero to 2, with the proviso that if n is 2, then said
- R 23 is chosen from hydrogen, straight chain or branched chain alkyl of one to eight carbon atoms, benzyl, (phenyl)ethyl and phenyl, the benzyl, (phenyl)ethyl or phenyl substituent being optionally substituted on the benzene ring by one or two moieties independently chosen from straight chain or branched chain alkyl of one to four carbon atoms, straight chain or branched chain alkoxy of one to four carbon atoms, and halogen, with the proviso that when the benzene ring is substituted by two such moieties, then the moieties together contain no more than six carbon atoms; and each R 3 is independently chosen from straight chain or branched chain alkoxy of one to four carbon atoms, halogen, and straight chain or branched chain alkyl of one to four carbon atoms, and n is an integer from zero to 2, with the proviso that if n is 2, then said R 3
- R 14 is -CHR x R y wherein R y is hydrogen or a carbon-carbon bond, with the proviso that when R y is hydrogen R x is alkoxy of one to four carbon atoms, hydroxyalkoxy of one to four carbon atoms, 1 -alkynyl of two to ten carbon atoms, tetrahydropyranyl, alkoxyalkyl wherein the alkoxy moiety contains one to four carbon atoms and the alkyl moiety contains one to four carbon atoms, or 2-, 3-, or 4-pyridyl, and with the further proviso that when R y is a carbon-carbon bond R y and R x together form a tetrahydrofuranyl group optionally substituted with one or more substituents independently chosen from hydroxy and hydroxyalkyl of one to four carbon atoms;
- R 24 is chosen from hydrogen, alkyl of one to four carbon atoms, phenyl, and substituted phenyl wherein the substituent is chosen from alkyl of one to four carbon atoms, alkoxy of one to four carbon atoms, and halogen; and is chosen from hydrogen, straight chain or branched chain alkoxy containing one to four carbon atoms, halogen, and straight chain or branched chain alkyl containing one to four carbon atoms;
- R 15 is chosen from: hydrogen; straight chain or branched chain alkyl containing one to ten carbon atoms and substituted straight chain or branched chain alkyl containing one to ten carbon atoms, wherein the substituent is chosen from cycloalkyl containing three to six carbon atoms and cycloalkyl containing three to six carbon atoms substituted by straight chain or branched chain alkyl containing one to four carbon atoms; straight chain or branched chain alkenyl containing two to ten carbon atoms and substituted straight chain or branched chain alkenyl containing two to ten carbon atoms, wherein the substituent is chosen from cycloalkyl containing three to six carbon atoms and cycloalkyl containing three to six carbon atoms substituted by straight chain or branched chain alkyl containing one to four carbon atoms; hydroxyalkyl of one to six carbon atoms; alkoxyalkyl wherein the alkoxy moiety contains one to
- Rs and R ⁇ are independently chosen from hydrogen, alkyl of one to four carbon atoms, phenyl, and substituted phenyl wherein the substituent is chosen from alkyl of one to four carbon atoms, alkoxy of one to four carbon atoms, and halogen;
- X is chosen from alkoxy containing one to four carbon atoms, alkoxyalkyl wherein the alkoxy moiety contains one to four carbon atoms and the alkyl moiety contains one to four carbon atoms, hydroxyalkyl of one to four carbon atoms, haloalkyl of one to four carbon atoms, alkylamido wherein the alkyl group contains one to four carbon atoms, amino, substituted amino wherein the substituent is alkyl or hydroxyalkyl of one to four carbon atoms, azido, chloro, hydroxy, 1-morpholino, 1-pyrrolidino, alkylthio of one to four carbon atoms; and
- R 5 is chosen from hydrogen, straight chain or branched chain alkoxy containing one to four carbon atoms, halogen, and straight chain or branched chain alkyl containing one to four carbon atoms; and a pharmaceutically acceptable salt of any of the foregoing.
- the IRM compound can also be chosen from 6,7 fused cycloalkylimidazopyridine amines defined by Formula VI below:
- n 1, 2, or 3;
- R ⁇ 6 is chosen from hydrogen; cyclic alkyl of tliree, four, or five carbon atoms; straight chain or branched chain alkyl containing one to ten carbon atoms and substituted straight chain or branched chain alkyl containing one to ten carbon atoms, wherein the substituent is chosen from cycloalkyl containing tliree to six carbon atoms and cycloalkyl containing three to six carbon atoms substituted by straight chain or branched chain alkyl containing one to four carbon atoms; fluoro- or chloroalkyl containing from one to ten carbon atoms and one or more fluorine or chlorine atoms; straight chain or branched chain alkenyl containing two to ten carbon atoms and substituted straight chain or branched chain alkenyl containing two to ten carbon atoms, wherein the substituent is chosen from cycloalkyl containing three to six carbon atoms and cycloalkyl containing three to
- R y is hydrogen or a carbon-carbon bond, with the proviso that when R y is hydrogen R x is alkoxy of one to four carbon atoms, hydroxyalkoxy of one to four carbon atoms, 1- alkynyl of two to ten carbon atoms, tetrahydropyranyl, alkoxyalkyl wherein the alkoxy moiety contains one to four carbon atoms and the alkyl moiety contains one to four carbon atoms, or 2-, 3-, or 4-pyridyl, and with the further proviso that when R y is a carbon-carbon bond R y and R x together form a tetrahydrofuranyl group optionally substituted with one or more substituents independently chosen from hydroxy and hydroxyalkyl of one to four carbon atoms,
- R 26 is chosen from hydrogen, straight chain or branched chain alkyl containing one to eight carbon atoms, straight chain or branched chain hydroxyalkyl containing one to six carbon atoms, morpholinoalkyl, benzyl, (phenyl)ethyl and phenyl, the benzyl, (phenyl)ethyl or phenyl substituent being optionally substituted on the benzene ring by a moiety chosen from methyl, methoxy, and halogen; and
- R ⁇ are independently chosen from hydrogen, alkyl of one to four carbon atoms, phenyl, and substituted phenyl wherein the substituent is chosen from alkyl of one to four carbon atoms, alkoxy of one to four carbon atoms, and halogen;
- X is chosen from alkoxy containing one to four carbon atoms, alkoxyalkyl wherein the alkoxy moiety contains one to four carbon atoms and the alkyl moiety contains one to four carbon atoms, haloalkyl of one to four carbon atoms, alkylamido wherein the alkyl group contains one to four carbon atoms, amino, substituted amino wherein the substituent is alkyl or hydroxyalkyl of one to four carbon atoms, azido, alkylthio of one to four carbon atoms, and morpholinoalkyl wherein the alkyl moiety contains one to four carbon atoms, and
- R 6 is chosen from hydrogen, fiuoro, chloro, straight chain or branched chain alkyl containing one to four carbon atoms, and straight chain or branched chain fiuoro- or chloroalkyl containing one to four carbon atoms and at least one fluorine or chlorine atom; and pharmaceutically acceptable salts thereof.
- the LRM compound can be chosen from imidazopyridine amines defined by Formula VII below:
- R 27 is chosen from hydrogen; straight chain or branched chain alkyl containing one to eight carbon atoms; straight chain or branched chain hydroxyalkyl containing one to six carbon atoms; alkoxyalkyl wherein the alkoxy moiety contains one to four carbon atoms and the alkyl moiety contains one to six carbon atoms; benzyl, (phenyl)ethyl and phenyl, the benzyl, (phenyl)ethyl oand phenyl being optionally substituted on the benzene ring by a moiety chosen from methyl, methoxy, and halogen; and morpholinoalkyl wherein the alkyl moiety contains one to four carbon atoms;
- R 67 and R 77 are independently chosen from hydrogen and alkyl of one to five carbon atoms, with the proviso that R 67 and R 77 taken together contain no more than six carbon atoms, and with the further proviso that when R is hydrogen then R 6 is other than hydrogen and R 27 is other than hydrogen or morpholinoalkyl, and with the further proviso that when R 6 is hydrogen then R 7 and R 27 are other than hydrogen; and pha riaceutically acceptable salts thereof.
- the IRM compound can be chosen from 1,2-bridged imidazoquinoline amines defined by Formula VIII below:
- Z is chosen from: -(CH 2 ) P - wherein p is 1 to 4;
- R D is hydrogen or alkyl of one to four carbon atoms
- RE is chosen from alkyl of one to four carbon atoms, hydroxy, -OR F wherein Rp is alkyl of one to four carbon atoms, and -NRQR' G wherein R G and R' G are independently hydrogen or alkyl of one to four carbon atoms;
- the IRM compound can be chosen from thiazoloquinoline amines, oxazoloquinoline amines, thiazolonaphthyridine amines, thiazolopyridine amines, and oxazolopyridine amines of Formula IX:
- R 19 is chosen from oxygen, sulfur and selenium;
- R 29 is chosen from -hydrogen;
- R 39 and r ⁇ are each independently:
- R 39 and R 49 form a fused aromatic, heteroaromatic, cycloalkyl or heterocyclic ring;
- X is chosen from -O-, -S-, -NR 59 - -C(O)-, -C(O)O- -OC(O)-, and a bond; and each R 59 is independently H or C ⁇ -8 alkyl; and pharmaceutically acceptable salts thereof.
- the IRM compound can be chosen from imidazonaphthyridine amines and imidazotetrahydronaphthyridme amines of Formulae X and XI below:
- R ⁇ o is chosen from:
- Y is -N- or -CR-;
- R 21 o is chosen from: -hydrogen; -CLIO alkyl; -C 2-10 alkenyl;
- each R 31 o is independently chosen from hydrogen and CM O alkyl; and each R is independently chosen from hydrogen, C 1-10 alkyl, C MO alkoxy, halogen and trifluoromethyl, and pharmaceutically acceptable salts thereof;
- Ri ⁇ is chosen from: - hydrogen; -Ci.2 0 alkyl or C2 -2 o alkenyl that is unsubstituted or substituted by one or more substituents chosen from: -aryl;
- Y is -N- or -CR-; hosen from: -hydrogen; -Ci-io alkyl;
- each R 3 ⁇ is independently chosen from hydrogen and C 1-10 alkyl; and each R is independently chosen from hydrogen, C 1-10 alkyl, C 1-10 alkoxy, halogen and trifiuoromethyl, and pharmaceutically acceptable salts thereof.
- the IRM compound can be chosen from imidazoquinoline amines and imidazotetrahydroquinoline amines, for example, lH-imidazo[4,5-c]quinolin- 4-amines and tetrahydro-lH-imidazo[4,5-c]quinolin-4-amines defined by Formulas XII, XIII and XIV below:
- R 112 is -alkyl-NR 31 2-CO-R 412 or -alkenyl-NR 3 ⁇ 2 -CO- R ⁇ wherein u 2 is aryl, heteroaryl, alkyl or alkenyl, each of which may be unsubstituted or substituted by one or more substituents chosen from: -alkyl;
- R 212 is chosen from: -hydrogen; -alkyl; -alkenyl;
- each R312 is independently chosen from hydrogen; C MO alkyl-heteroaryl; C MO alkyl-(substituted heteroaryl); C 1-10 alkyl-aryl; C 1-10 allcyl-(substituted aryl) and C 1-10 alkyl; v is 0 to 4; and each R 12 present is independently chosen from C 1-10 alkyl, .io alkoxy, halogen and trifluoromethyl;
- R ⁇ 3 is -alkyl-NR 313 - SO 2 -X-R413 or -alkenyl-NR 313 - SO 2 -X-R413 ;
- X is a bond or -NR 513 -;
- R 413 is aryl, heteroaryl, heterocyclyl, alkyl or alkenyl, each of which may be unsubstituted or substituted by one or more substituents chosen from:
- R is alkyl, alkenyl, or heterocyclyl, oxo; chosen from:
- each R 313 is independently chosen from hydrogen, C 1- 0 alkyl, and when X is a bond R 313 and Rn 3 can combine to form a 3 to 7 membered heterocyclic or substituted heterocyclic ring;
- R 513 is chosen from hydrogen, C M0 alkyl, and u 3 and R 513 can combine to form a 3 to 7 membered heterocyclic or substituted heterocyclic ring; v is 0 to 4 and each R ⁇ 3 present is independently chosen from C 1-10 alkyl, C O alkoxy, halogen and trifluoromethyl;
- R 114 is -alkyl-NR3i4-CY-NR5i4-X-R4i4 or -alkenyl-NR 314 -CY- NR514-X- 414 wherein
- X is a bond, -CO- or -SO 2 -
- t is aryl, heteroaryl, heterocyclyl, alkyl or alkenyl, each of which may be unsubstituted or substituted by one or more substituents chosen from:
- R 4 ⁇ is alkyl, alkenyl or heterocyclyl, oxo; with the proviso that when X is a bond Ru 4 can additionally be hydrogen;
- R 2 i4 is chosen from:
- each R 314 is independently chosen from hydrogen and C O alkyl
- Rs 1 is chosen from hydrogen, Ci-io alkyl, and R 414 and R5 14 can combine to form a 3 to 7 membered heterocyclic or substituted heterocyclic ring
- v is 0 to 4 and each R 1 present is independently chosen from Cno alkyl, C 1-10 alkoxy, halogen and trifluoromethyl, and pharmaceutically acceptable salts thereof.
- the IRM compound can be chosen from imidazoquinoline amines and imidazotetrahydroquinoline amines, for example, ⁇ H- imidazo[4,5-c]quinolin-4-amines and tetrahydro- lH-imidazo[4,5-c]quinolin-4-amines defined by Formulas XV, XVI, XVII, XVIII, XIX, XX, XXI, XXII, XXIII, XXIV, XXV, and XXVI below
- X is -CHR 5 ⁇ 5 -, -CHR 515 -alkyl-, or -CHR 515 -alkenyl-;
- Rn 5 is chosen from:
- R 2 i 5 is chosen from:
- n ⁇ is alkyl or alkenyl, which may be interrupted by one or more -O- groups; each R ⁇ t s is independently H or Ci-io alkyl;
- R 6!5 is a bond, alkyl, or alkenyl, which may be interrupted by one or more -O- groups;
- R ⁇ s is H, C MO alkyl, arylalkyl, or R 415 and R 715 can join together to form a 5 to 7 membered heterocylcic ring;
- Rsi 5 is H, Ci-io alkyl, or R 15 and R 8 ⁇ 5 can join together to form a 5 to 7 membered heterocyclic ring;
- Y is -O- or -S(O) 0-2 -;
- v is 0 to 4; and each R 15 present is independently chosen from CM O alkyl, .io alkoxy, hydroxy, halogen and trifluoromethyl;
- X is -CHR 516 -, -CHR 516 -alkyl-, or -CHR 516 -alkenyl-;
- Rue is chosen from:
- R 216 is chosen from: -hydrogen;
- R416 is alkyl or alkenyl, which may be interrupted by one or more -O- groups; each R 5!6 is independently H or C O alkyl;
- R6 16 is a bond, alkyl, or alkenyl, which may be interrupted by one or more -O- groups;
- R 16 is H, C I - IO alkyl, arylalkyl, or R 4K5 and R 16 can join together to form a 5 to 7 membered hetercyclic ring;
- R 716 and R 816 can join together to form a 5 to 7 membered heterocyclic ring;
- Y is -O- or -S(O) 0-2 -;
- v is 0 to 4; and each R 16 present is independently chosen from . 10 alkyl, CM O alkoxy, hydroxy, halogen, and trifluoromethyl;
- X is -CHR 317 -, -CHR 317 -alkyl-, or -CHR 317 -alkenyl-; R is chosen from:
- R 217 is chosen from: -hydrogen;
- R t17 is alkyl or alkenyl, which may be interrupted by one or more -O- groups; each R 3 ⁇ is independently H or C 1-10 alkyl; each Y is independently -O- or -S(O)o-2-; v is 0 to 4; and each R 1 present is independently chosen from C MO alkyl, C O alkoxy, hydroxy, halogen and trifluoromethyl;
- X is -CHR 318 -, -CHR 318 -alkyl-, or -CHR 318 -alkenyl-;
- R ⁇ s is chosen from:
- R 2 i 8 is chosen from:
- R 418 is alkyl or alkenyl, which may be interrupted by one or more
- X is -CHR 319 -, -CHR 3 ⁇ -alkyl-, or -CHR 319 -alkenyl-;
- Ri 19 is chosen from: -heteroaryl; -heterocyclyl; -R 419 - heteroaryl; and -R 41 -heterocyclyl; R 219 is chosen from: -hydrogen; -alkyl;
- t!9 is alkyl or alkenyl, which may be interrupted by one or more -O- groups; each Rj 19 is independently H or C MO alkyl; each Y is independently -O- or -S(O)o-2-; v is 0 to 4; and each R 19 present is independently chosen from C 1-10 alkyl, CMO alkoxy, hydroxy, halogen and trifluoromethyl;
- X is -CHR 320 -, -CHR 32 o-alkyl-, or -CHR 32 o-alkenyl-;
- Ri 2 o is chosen from: -heteroaryl; -heterocyclyl;
- R 22 o is chosen from: -hydrogen; -alkyl;
- R 420 is alkyl or alkenyl, which may be interrupted by one or more -O- groups; each R3 2 0 is independently H or CMO alkyl; each Y is independently -O- or -S(O)o- 2 S v is 0 to 4; and each R 20 present is independently chosen from CMO alkyl, CMO alkoxy, hydroxy, halogen and rrifluoromethyl;
- X is -CHR 521 -, -CHR 52 ⁇ -alkyl-, or -CHR 521 -alkenyl-;
- R 12 ⁇ is chosen from:
- -R4 — NR 321 — SO 2 — R ⁇ 521 — alkyl; -R4: — NR 32 ⁇ — SO 2 — 6 21 — alkenyl; -Rt: -NR 321 -SO 2 -R 62 i-aryl; -R4: -NR 321 -SO 2 -R 621 -heteroaryl; -R4 -NR 321 -SO 2 -R 621 -heterocyclyl; -R4: — NR 321 — SO 2 — R72U -R4: -NR 32 i-SO 2 -NR 521 -R 62 ⁇ -alkyl; -R4: -NR 321 -SO 2 -NR 52 i-R 62 i-alkenyl; -R4: -NR 321 -SO 2 -NR 52 i-R 62 i-aryl; -R 42 i-NR 32
- Y is -O- or -S(O)o -2 -;
- R 321 is H, C 1-10 alkyl, or arylalkyl; each R 421 is independently alkyl or alkenyl, which may be interrupted by one or more -O- groups, or R 321 and R 421 can join together to form a 5 to 7 membered heterocyclic ring;
- each Rs 2 i is independently H, CMO alkyl, or C 2-10 alkenyl;
- Re 2 i is a bond, alkyl, or alkenyl, which may be interrupted by one or more -
- R 72 ⁇ is CMO alkyl, or R 32 ⁇ and R 21 can join together to fonn a 5 to 7 membered heterocyclic ring; v is 0 to 4; and each R 21 present is independently chosen from C O alkyl, CMO alkoxy, hydroxy, halogen and trifluoromethyl;
- X is -CHR 522 -, -CHR 522 -alkyl-, or -CHR 522 -alkenyl-;
- R122 is chosen from: -R422—NR322—SO2—R622— alkyl;
- R222 is chosen from: -hydrogen; -alkyl; -alkenyl; -aryl; -R 422 -NR 322 -SO 2 -NR 522 -R 622 -aryl; -R 422 -NR 322 -SO2-NR522-R 622 -heteroaryl; -R 422 -NR 322 -S ⁇ 2-NR 52 2-R 6 2 2 -heterocyclyl; and R222 is chosen from: -hydrogen; -alkyl; -alkenyl; -aryl;
- each R_j 22 is independently alkyl or alkenyl, which may be interrupted by one or more -O- groups, or R 322 and R 22 can join together to fonn a 5 to 7 membered heterocyclic ring; each R 522 is independently H, C MO alkyl, or C 2-10 alkenyl; R6 22 is a bond, alkyl, or alkenyl, which may be interrupted by one or more - O- groups; R 722 is C MO alkyl, or R 322 and R 72 can join together to form a 5 to 7 membered heterocyclic ring; v is 0 to 4; and each R 22 present is independently chosen from C MO alkyl, CMO alkoxy, hydroxy, halogen, and trifluoromethyl;
- X is -CHR 323 -, -CHR 323 -alkyl-, or -CHR 323 -alkenyl-;
- Z is -S-, -SO-, or-SO 2 -;
- R 123 is chosen from: -alkyl;
- R 223 is chosen from: -hydrogen; -alkyl;
- each Rj 23 is independently H or C MO alkyl; each j 23 is independently alkyl or alkenyl; each Y is independently -O- or -S(O)o -2 -; v is 0 to 4; and each R 23 present is independently chosen from C MO alkyl, C MO alkoxy, hydroxy, halogen and trifluoromethyl;
- X is -CHR 324 -, -CHR 324 -alkyl-, or -CHR 324 -alkenyl-;
- Z is -S-, -SO-, or -SO 2 -;
- R124 is chosen from:
- R 22 4 is chosen from:
- each R 324 is independently H or C MO alkyl; each R424 is independently alkyl or alkenyl; each Y is independently -O- or -S(O) 0-2 -; v is 0 to 4; and each R 24 present is independently chosen from CMO alkyl, C O alkoxy, hydroxy, halogen and trifluoromethyl;
- X is -CHR 25 -, -CHR 525 -alkyl-, or -CHR 525 -alkenyl-;
- R 125 is chosen from:
- R 225 is chosen from:
- each Rj 2 s is independently alkyl or alkenyl, which may be interrupted by one or more -O- groups; each R 525 is independently H or C O alkyl;
- R f i 25 is a bond, alkyl, or alkenyl, which may be interrupted by one or more -O- groups;
- R 25 is H, C MO alkyl which may be interrupted by a hetero atom, or R 725 can join with R 525 to form a 5 to 7 membered heterocyclic ring;
- Rs25 is H, C MO alkyl, arylalkyl, or R4 25 and R 825 can join together to form a 5 to 7 membered heterocyclic ring;
- R 92 5 is C MO alkyl which can join together with R 825 to form a 5 to 7 membered heterocyclic ring;
- each Y is independently -O- or -S(O)o-2-;
- Z is a bond, -CO- or -SO2-;
- v is 0 to 4; and each R2 5 present is independently chosen from C MO alkyl, C O alkoxy, hydroxy, halogen and triffuoromethyl;
- X is -CHR 526 -, -CHR 526 -alkyl-, or -CHR 526 -alkenyl-;
- R 12 6 is chosen from:
- R 226 is chosen from:
- R 626 is a bond, alkyl, or alkenyl, which may be interrupted by one or more -O- groups;
- R 726 is H, C O alkyl which may be interrupted by a hetero atom, or R 726 can join with R 526 to form a 5 to 7 membered heterocyclic ring;
- Rg 26 is H, C O alkyl, arylalkyl, or R 426 and R 826 can join together to form a
- R 926 is C MO alkyl which can join together with R 826 to fonn a 5 to 7 membered heterocyclic ring; each Y is independently -O- or -S(O)o- 2 -; Z is a bond, -CO- or -SO 2 -; v is 0 to 4; and each R 26 present is independently chosen from C MO alkyl, C MO alkoxy, hydroxy, halogen, and trifluoromethyl; and pharmaceutically acceptable salts of any of the foregoing.
- the IRM compound can be chosen from lH-imidazo[4,5- c]pyridin-4-amines compounds defined by Formula XXVII
- X is alkylene or alkenylene
- Y is -CO- -CS-, or -SO 2 -
- Z is a bond, -O-, -S-, or -NR 52 -;
- R 127 is aryl, heteroaryl, heterocyclyl, C MO alkyl or C 2-2 o alkenyl, each of which may be unsubstituted or substituted by one or more substituents independently chosen from: -alkyl;
- -alkyl-S ⁇ aryl -alkyl-O- alkenyl; -alkyl-S- alkenyl; and
- R 327 and 427 are independently chosen from hydrogen, alkyl, alkenyl, halogen, alkoxy, amino, alkylamino, dialkylamino and alkylthio; each R 527 is independently H or C M oalkyl; and pharmaceutically acceptable salts thereof.
- alkyl alkenyl
- alk- alk-
- these groups contain from 1 to 20 carbon atoms, with alkenyl groups containing from 2 to 20 carbon atoms.
- Preferred groups have a total of up to 10 carbon atoms.
- Cyclic groups can be monocyclic or polycyclic and preferably have from 3 to 10 ring carbon atoms.
- Exemplary cyclic groups include cyclopropyl, cyclopropylmefhyl, cyclopentyl, cyclohexyl and adamantyl.
- haloalkyl is inclusive of groups that are substituted by one or more halogen atoms, including perfluorinated groups. This is also true of groups that include the prefix "halo-”. Examples of suitable haloalkyl groups are chloromethyl, trifluoromethyl, and the like.
- aryl as used herein includes carbocyclic aromatic rings or ring systems. Examples of aryl groups include phenyl, naphthyl, biphenyl, fluorenyl and indenyl.
- heteroaryl includes aromatic rings or ring systems that contain at least one ring hetero atom (e.g., O, S, N).
- Suitable heteroaryl groups include furyl, thienyl, pyridyl, quinolinyl, isoquinolinyl, indolyl, isoindolyl, triazolyl, pyrrolyl, tetrazolyl, imidazolyl, pyrazolyl, oxazolyl, thiazolyl, benzofuranyl, benzothiophenyl, carbazolyl, benzoxazolyl, pyrimidinyl, benzimidazolyl, quinoxalinyl, benzothiazolyl, naphthyridinyl, isoxazolyl, isothiazolyl, purinyl, quinazolinyl, and so on.
- Heterocyclyl includes non-aromatic rings or ring systems that contain at least one ring hetero atom (e.g., O, S, N) and includes all of the fully saturated and partially unsaturated derivatives of the above mentioned heteroaryl groups.
- exemplary heterocyclic groups include pyrrolidinyl, tetrahydrofuranyl, morpholinyl, thiomorpholinyl, piperidinyl, piperazinyl, fhiazolidinyl, imidazolidinyl, isothiazolidinyl, and the like.
- the topical formulations of the present invention are prepared using the free base form of the IRM compound.
- the amount of an IRM compound that will be therapeutically effective in a specific situation will depend on such things as the activity of the particular compound, the dosing regimen, the application site, the particular formulation and the condition being treated. As such, it is generally not practical to identify specific administration amounts herein; however, those skilled in the art will be able to determine appropriate therapeutically effective amounts based on the guidance provided herein, information available in the art pertaining to these compounds, and routine testing.
- a therapeutically effective amount means an amount of the compound sufficient to induce a therapeutic effect, such as cytokine induction, inhibition of TH2 immune response, antiviral or antitumor activity, reduction or elimination of postsurgical scarring, or reduction or resolution of actinic keratosis or pre- actinic keratosis lesions.
- the amount of the IRM compound present in a topical formulation of the invention will be an amount effective to treat a targeted condition, to prevent recurrence of the condition, or to promote immunity against the condition.
- the amount or concentration of the IRM compound can range from 0.001%) to 10% by weight based on the total formulation weight, such as, for example, from 0.03% > to 5.0%> by weight, or from
- the amount of the IRM compound is at least 0.003%o by weight, such as, for example, at least 0.005%, at least 0.01%o, at least 0.03%, at least 0.10% > , at least 0.30%> and at least 1.0%. In other embodiments, the amount of the IRM compound is at most 5.0%> by weight, such as, for example, at most 3.0%, and at most 1.0%.
- the topical formulations of the invention additionally comprise a fatty acid.
- fatty acid means a carboxylic acid, either saturated or unsaturated, comprising 6 to 28 carbon atoms, such as, for example, from 10 to 22 carbon atoms.
- Non-limiting examples of such fatty acids include isostearic acid, oleic acid, and linear- or- branched chained carboxylic acids of 6 to 18 carbon atoms.
- the fatty acid may be present in the formulation in an amount sufficient to solubilize the IRM compound.
- the amount of the fatty acid can range from 0.05 %> to 40 % by weight based on the total weight of the formulation, such as, for example, from 1% to 30%, from 3%» to 15%o and from 5% to 10%. In certain embodiments, the amount of the fatty acid is at least 3.0%o by weight, such as, for example, at least 5.0%, at least 10.0%>, and at least 25%.
- the fatty acid component of the formulation can comprise one or more fatty acids.
- the topical formulations of the invention additionally comprise at least one hydrophobic, aprotic component miscible with the fatty acid and comprising a hydrocarbyl group of 7 or more carbon atoms.
- hydrophobic is meant that the component is essentially insoluble in water, i.e. immiscible with water and unable to form a micelle in water, and does not contain polyoxyethylene or acid salt groups.
- aprotic component has a hydrophilic lipophilic balance (HLB) of less than 2.
- the HLB of a component maybe determined as described, for example, in Attwood, D., Florence, A. T. Surfactant Systems: Their Chemistry, Pharmacy, and Biology. New York: Chapman & Hall, 471-473, 1983.
- aprotic is meant that the component cannot donate a proton to the IRM and does not contain groups such as carboxyl, hydroxy, primary and secondary amino, primary and secondary amido, or quaternary ammonium groups.
- this component has a pKa of at least 14.2 and does not substantially solubilize or form a complex such as an acid-base pair or complex or a hydrogen bond complex with the IRM compound.
- a complex such as an acid-base pair or complex or a hydrogen bond complex with the IRM compound.
- not substantially is meant that the ratio of the IRM compound's solubility in the hydrophilic, aprotic component to that in isostearic acid is less than 1 :40.
- Formulations intended for dermal or topical use desirably have a certain minimum amount of an oil phase to provide qualities such as spreadability, feel on the skin, texture, and so on. However, if all the components of the oil phase solubilize the IRM, then the degree of saturation of the IRM in the formulation will decrease, making it more difficult to deliver the IRM from the formulation to the skin.
- Addition of the hydrophobic, aprotic component can increase the oil phase volume of the topical formulation to provide desirable qualitites such as spreadability and feel, while at the same time not appreciably altering the degree of saturation or thermodynamic activity of the IRM.
- the amount of fatty acid, which solubilizes the IRM can be reduced to increase the degree of IRM saturation while maintaining a sufficient oil phase volume by virtue of the addition of the hydrophobic, aprotic component, which does not offset the increased IRM saturation.
- the topical formulation of the present invention can facilitate both physical property and drug delivery requirements. Degree of saturation and thermodynamic activity of the
- IRM in these formulations is equal to the IRM concentration in the oil phase divided by the saturation concentration of the IRM in the oil phase.
- the thermodynamic activity or degree of saturation is unity, and when partially saturated the thermodynamic activity or degree of saturation is less than unity.
- the amount of the hydrophobic, aprotic component present in a formulation of the invention can range from 1% to 30% by weight based on the total formulation weight, for example, from 3 % to 15%> by weight, and from 5 to 10%> by weight, hi certain embodiments, the amount of the hydrophobic, aprotic component is at least 3.0%> by weight, for example, at least 5.0%>, and at least 10.0%>.
- the weight ratio of the hydrophobic, aprotic component to the fatty acid can be 0.025:1 to 600:1, for example, 0.5:1 to 50:1, and 2:1 to 30:1.
- the combined amount (weight percent of the total topical formulation weight) of the hydrophobic, aprotic component and the fatty acid can be 2% to 50% by weight, for example 2% to 30%, 5% to 30%, 5% to 20%, and 10% to 20%.
- useful hydrophobic, aprotic components include but are not limited to fatty acid esters, for example, isopropyl mysristate, isopropyl palmitate, diisopropyl dimer dilinoleate; triglycerides, for example, caprylic/capric triglyceride; cetyl esters wax; hydrocarbons of 8 or more carbon atoms, for example, light mineral oil, white petrolatum; and waxes, for example, beeswax.
- the hydrophobic, aprotic component is chosen from one or more of isopropyl mysristate, isopropyl palmitate, caprylic/capric triglyceride, and diisopropyl dimer dilinoleate.
- the formulations of the present invention can also comprise a hydrophilic viscosity enhancing agent.
- suitable hydrophilic viscosity enhancing agents include cellulose ethers such as hydroxypropylmethylcellulose, hydroxyefhylcelfulose, hydroxypropylcellulose, and carboxymethylcellulose; polysaccharide gums such as xanthan gum; and homopolymers and copolymers of acrylic acid crosslinked with allyl sucrose or allyl pentaerythriol such as those polymers designated as carbomers in the United States Pharmacopoeia.
- Suitable carbomers include, for example, those available as CarbopolTM 934P, Carbopol 97 IP, Carbopol 940, Carbopol 974P, Carbopol 980, and PemulenTM TR-1 (USP/NF Monograph; Carbomer 1342), all available from Noveon, Cleveland, Ohio.
- the viscosity enhancing agent is chosen from Carbopol 974P and 980.
- the viscosity enhancing agent is generally present in an amount ranging from 0.1 %> to 10%> by weight of total formulation weight, such as, for example, from 0.5 %> to 5%> by weight, from 0.5%> to 1.5% by weight, and from 0.7%) to 3%> by weight.
- the amount of the viscosity enhancing agent is at least 0.5%o by weight, for example, at least 0.6% by weight, at least 0.7%> by weight, at least 0.9%> by weight, and at least 1.0% by weight.
- the formulations of the invention can additionally comprise an emulsifier.
- Suitable emulsifiers include non-ionic surfactants such as, for example, polysorbate 60, sorbitan monostearate, polyglyceryl-4 oleate, polyoxyethylene(4) lauryl ether, etc.
- the emulsifier is chosen from poloxamers (e.g., PluronicTM F68, also known as Poloxamer 188, a poly(ethylene glycol)-block-poly(propylene glycol)-block- poly(ethylene glycol), available from BASF, Ludwigshafen, Germany) and sorbitan trioleate (e.g., Span 85 available from Uniqema, New Castle, DE).
- the emulsifier is generally present in an amount of 0.1%o to 10%o by weight of total formulation weight, for example, from 0.5%> to 5%> by weight, and from 0.75%) to 3.5%> by weight. In certain embodiments, the amount of the emulsifier is at least 1.0% by weight, for example, at least 2.5%, at least 3.5%, and at least 5.0%>.
- the formulation can also include at least one chelating agent.
- the chelating agent functions to chelate metal ions that may be present in the formulation. Suitable chelating agents include salts of ethylenediaminetetraacetate (EDTA), such as the disodium salt. If included, the chelating agent is generally present in an amount ranging from 0.001 % to 0.1% by weight, and preferably from 0.01% to 0.05%) by weight. In certain embodiments, the amount of the chelating agent is at least 0.005% > by weight, such as, for example, at least 0.01%, and at least 0.05%.
- the formulation can also include a preservative system.
- the preservative system is generally comprised of at least one preservative compound chosen from methylparaben, ethylparaben, propylparaben, phenoxyethanol, iodopropynyl butylcarbamate, sorbic acid, a fatty acid monoester of glycerin such as glycerol monolaurate, and a fatty acid monoester of propylene glycol such as propylene glycol monocaprylate.
- the preservative system may also include a preservative enhancing solubilizer which enhances the solubility of the preservative in the aqueous phase, examples of which include diethylene glycol monoethyl ether and propylene glycol.
- the preservative system can be comprised of methylparaben, propylparaben, and propylene glycol. In another embodiment, the preservative system can be comprised of methylparaben, ethylparaben, and diethylene glycol monoethyl ether. In one embodiment, the preservative system can be comprised of phenoxyethanol, methylparaben or methyl- and ethylparaben, and diethylene glycol monoethyl ether. In another embodiment, the preservative system can be comprised of iodopropynyl butylcarbamate.
- the preservative system can be comprised of iodopropynyl butylcarbamate, diethylene glycol monoethyl ether, and poly( ethylene glycol)(4) monolaurate.
- the preservative system can be comprised of iodopropynyl butylcarbamate, one or more of methylparaben, ethylparaben, propylparaben, or phenoxyethanol, and diethylene glycol monoethyl ether.
- the methylparaben, ethylparaben, and propylparaben can each be present in the formulations in an amount ranging from 0.01% to 0.5% by weight of the formulation weight, for example, from 0.05 %> to 0.25%> by weight, and from 0.1%o to 0.2% by weight.
- the iodopropynyl butylcarbamate can be present in the formulations in an amount ranging from 0.01% to 0.1%.
- the phenoxyethanol can be present in the formulations in an amount ranging from 0.1% to 1%>.
- the propylene glycol and diethylene glycol monoethyl ether can each be present in the formulations in an amount ranging from 1% to 30%o by weight of the formulation weight, such as, for example, from 5 % to 25%o by weight, and from 10%> to 15%> by weight.
- the preservative system can be present in the formulations in an amount ranging from 0.01%> to 30%> by weight of the formulation weight, for example, from 0.05% to 30%), from 0.1%> to 25%o by weight, and from 0.2%o to 15%) by weight.
- the methylparaben, ethylparaben, propylparaben, iodopropynyl butylcarbamate, and phenoxyethanol can be solubilized in propylene glycol, poly(ethylene glycol)(4) monolaurate, or diethylene glycol monoethyl ether prior to addition to the formulation.
- the preservative system can be selected such that it meets the criteria for antimicrobial effectiveness set forth in the United States Pharmacopeia ⁇ 51>.
- the formulations of the present invention may additionally comprise at least one pH adjuster. Suitable pH adjusters include organic bases and inorganic bases such as, for example, KOH, NaOH.
- the pH of the topical formulations of the present invention generally ranges from 3.5 to 7.0. In one embodiment, the pH of the topical formulations of the present invention can range from 4.0 to 6.0, preferably 5.0. In another embodiment of the invention, the pH of the topical formulations of the present invention can range from 5.5 to 6.5, preferably 6.0.
- any of the foregoing formulations can be in the form of an oil-in- water emulsion such as a cream or a lotion.
- Such an emulsion can comprise an oil phase comprising the IRM compounds, a fatty acid in an amount sufficient to solubilize the IRM compounds, a hydrophobic, aprotic component; and an aqueous phase comprising a hydrophilic viscosity enhancing agent, for example, a carbomer.
- the amount or concentration of the IRM in the oil phase can be at least 0.01%>, for example, at least 0.02%), at least 0.1 %>, and at least 1% with respect to oil phase weight. In other embodiments, the amount or concentration of the IRM in the oil phase can be at most
- any of the foregoing formulations according to the present invention can be applied to the dermal surfaces of a mammal.
- the therapeutic effect of the IRM compound may extend only to the superficial layers of the dermal surface or to tissues below the beal surface.
- another aspect of the present invention is directed to a method for the treatment of a dermal associated condition comprising applying to skin one of the foregoing formulations.
- a "dermal associated condition” means an inflammatory, infectious, neoplastic or other condition that involves a dermal surface or that is in sufficient proximity to a dermal surface to be affected by a therapeutic agent topically applied to the dermal surface.
- a dermal associated condition include warts, atopic dermatitis, basal cell carcinoma, postsurgical scars, and actinic keratosis.
- the formulations can be applied to the surface of skin for treatment of actinic keratosis (AK).
- Actinic keratoses are premalignant lesions considered biologically to be either carcinoma in-situ or squamous intraepidennal neoplasia.
- AK is the most frequent epidermal tumor and is induced by ultraviolet (UV) radiation, typically from sunlight. Because of its precancerous nature, AK may be considered the most important manifestation of sun-induced skin damage.
- the above described formulations are particularly advantageous for dermal application for a period of time sufficient to obtain a desired therapeutic effect without undesired systemic absorption of the IRM.
- Examples 1-7 and Comparative Example CI Table 1 summarizes topical formulations made in accordance with the present invention in a percentage weight-by-weight basis.
- Methylparaben and propylparaben were dissolved in propylene glycol and the solution was subsequently added to the water phase. Poloxamer 188 was then added to the water phase and mixed until dissolved.
- Phase combination The oil phase was added to the water phase at ambient conditions. The emulsion was then homogenized. After homogenization, sodium hydroxide solution
- Formulations containing 2-methyl-l -(2-methylpropyl)-lH-imidazo[4,5-c] [l,5]naphthyridin-4-amine were tested for their ability to induce increases in cytokine concentrations in rats following topical application. This study was undertaken to evaluate cytokine induction following a single dosing of various strengths and timepoints or a multiple vs. single dosing of IRM Compound 1. The formulations described above were tested by examining tissue and serum concentrations of TNF- ⁇ , MCP-1 (monocyte chemoattractant protein- 1) and IFN- ⁇ cytokines following drug treatment.
- mice Female CD hairless rats (Charles River Laboratories, Wilmington, MA) weighing 200-250 grams were used in all studies. Animals were randomized to treatment groups and dosed five per treatment group.
- the rats were acclimated to collars around the neck on two consecutive days prior to actual dosing.
- the rats were collared before dosing to prevent ingestion of the drug, and were then dosed topically with 50 ⁇ L of active cream or the appropriate placebo on right flank and then housed individually following dosing.
- the rats were anesthetized and blood was collected by cardiac puncture. Blood was allowed to clot at room temperature and serum was separated from the clot via centrifugation and stored at -20 °C until it was analyzed for cytokine concentrations. Following blood collection, the rats were euthanized and their skins removed.
- Tissue from both treated site (at) and contralateral site (away) were obtained using an 8 mm punch biopsy, weighed, placed in a sealed 1.8 ml cryovial and flash frozen in liquid nitrogen.
- the frozen tissue sample was then suspended in 1.0 mL RPMI medium (Celox, Hopkins, MN) containing 10%> fetal bovine serum (Sigma, St. Louis, MO), 2 mM L-glutamine, penicillin streptomycin, and 2-mercaptoethanol (RPMI complete) combined with a protease inhibitor cocktail set III (Calbiochem, San Diego, CA).
- the tissue was homogenized using a Tissue TearorTM (Biospec Products, Bartlesville, OK) for approximately 1 minute.
- the tissue suspension was then centrifuged at 2000 rpm for 10 minutes under refrigeration to pellet debris, and the supernatant collected and stored at -20 °C until analyzed for cytokine concentrations.
- ELISAs for rat MCP-1 were purchased from BioSource Intl. (Camarillo, CA) and rat TNF- ⁇ were purchased from BD Pharmingen (San Diego, CA) and performed according to manufacturer's specifications. Results for both TNF- ⁇ , and MCP-1 were expressed in pg/200 mg tissue or pg/ml serum. The sensitivity of the TNF- ⁇ ELISA was 31.2 pg/ml and of the
- MCP-1 ELISA was 11.7 pg/ml.
- IFN- ⁇ concentrations in both serum and skin tissue were determined using a bioassay that measured inhibition of the viral cytopathic effect of vesicular stomatitis virus on rat LMS-C2 fibroblast cells as previously described (Reiter, M. J., Testennan, T. L., Miller, R. L., Weeks, C. E., and Tomai, M. A. (1994) "Cytokine Induction in Mice by the Immunomodulator Imiquimod.” J. Leukocyte Biol. 55, 234-240).
- results for IFN- ⁇ concentrations were normalized to a standard reference rat IFN- ⁇ , preparation with results being reported in U/mL and are normalized per mg of tissue.
- Tables 2-4 The data shown below in Tables 2-4 are from three separate experiments and analyzed to 1) measure pharmacokinetics by full time course, 2) measure dose response and 3) measure multiple vs. single dosing.
- the data are presented in Table 2.
- a Female hairless CD rats were dosed topically with cream formulated Compound 1.
- b TNF- ⁇ and MCP-1 were measured by ELISA.
- IFN- ⁇ was measured by bioassay. Results are presented in pg/ml for serum samples and pg/200 mg tissue for tissue samples and represent the mean of five animals + SEM.
- a Female hairless CD rats were dosed topically with cream formulated Compound 1.
- b MCP-1 was measured by ELISA. Results are presented in pg/ml for serum samples and pg/200 mg tissue for tissue samples and represent the mean of five animals + SEM. °Indicates p ⁇ 0.05 when compared to either placebo for serum samples or the difference between treated tissue and control tissue from the same animal.
- a dose response study (Study 3 with results shown in Table 4) was perfonned by dosing with the topical cream formulations of Examples 3-5 and 7, containing various concentrations of IRM Compound 1. Serum and tissue samples were taken at 8 and 24 hours post dose and analyzed for MCP-1. The studies tested topical delivery of creams comprising IRM Compound 1 for its ability to affect a local MCP-1 induction at four concentrations.
- MCP-1 was measured by ELISA. Results are presented in pg/ml for serum samples and pg/200 mg tissue for tissue samples and represent the mean of five animals + SEM. c Indicates p ⁇ 0.05 when compared to either placebo for serum samples or the difference between treated tissue and control tissue from the same animal.
- Table 5 summarizes topical formulations made in accordance with the present invention in a percentage weight-by-weight basis.
- Water phase preparation Edetate disodium was dissolved in the water. Methylparaben and propylparaben were dissolved in propylene glycol, and the solution was subsequently added to the water phase. Poloxamer 188 was then added to the water phase and mixed until dissolved. Phase combination: The oil phase was added to the water phase at ambient conditions.
- TNF- ⁇ , MCP-1 and IFN- ⁇ following drug treatment as described in Examples 1-7.
- a Female hairless CD rats were dosed topically with cream formulated Compound 2.
- b TNF- ⁇ and MCP-1 were measured by ELISA.
- IFN- ⁇ was measured by bioassay. Results are presented in pg/ml for serum samples and pg/200 mg tissue for tissue samples and represent the mean of five animals + SEM.
- c Indicates p ⁇ 0.05 when compared to either placebo for serum samples or the difference between treated tissue and control tissue from the same animal.
- a multiple dose study was done to monitor effects of a multiple dose regimen (Study 2 with results shown in Table 7). Rats were dosed two times a week for six hours for three weeks with topical cream formulation of Example 10. Placebo (Comparative Example CI) and single dosed rats were done for comparison and done simultaneously with the last dosing of the multiple dose set. Serum and tissue samples were taken at 16 and 24 hours post dose and analyzed for MCP-1.
- a Female hairless CD rats were dosed topically with cream formulated Compound 2.
- b MCP-1 was measured by ELISA. Results are presented in pg/ml for serum samples and pg/200 mg tissue for tissue samples and represent the mean of five animals + SEM. °lndicates p ⁇ 0.05 when compared to either placebo for serum samples or the difference between treated tissue and control tissue from the same animal.
- a dose response study (Study 3 with results shown in Table 8) was performed by dosing with the topical cream formulations of Examples 8-11, containing various concentrations of IRM Compound 2. Serum and tissue samples were taken at 16 and 24 hours post dose and analyzed for MCP-1. The studies tested topical delivery of creams comprising IRM Compound 2 for its ability to affect a local MCP-1 induction at four concentrations.
- Table 9 summarizes topical formulations made in accordance with the present invention on a percentage weight-by-weight basis.
- Table 10 summarizes topical formulations made in accordance with the present invention on a percentage weight-by-weight basis.
- the IRM compound was dissolved in isostearic acid and diisopropyl dimer dilinoleate (or caprylic/capric acid triglyceride) with heat if necessary.
- Water phase preparation :
- Edetate disodium was dissolved in the water. Poloxamer 188 was then added to the water phase and mixed until dissolved. Carbomer 980 was then added to the water phase and mixed until the carbomer was fully dispersed and hydrated. Methylparaben and propylparaben were dissolved in diethylene glycol monoethyl ether and the solution was subsequently added to the water phase.
- the water phase was added to the oil phase at ambient conditions.
- the emulsion was then mixed at high speed or homogenized.
- sodium hydroxide solution (20%) w/w) was added and the resulting cream was mixed until smooth and uniform.
- the pH of the cream was measured and a pH adjustment was made with additional sodium hydroxide solution, if necessary, to meet the in-process target pH of 5.
- Table 11 summarizes topical formulations made in accordance with the present invention on a percentage weight-by-weight basis.
- Topical creams containing the IRM compounds listed in Table 12 were prepared using the general methods described above for Examples 1 - 24. Each IRM was formulated into one or more of the model formulations shown in Tables 13 and 14. Table 15 summarizes the topical creams that were prepared. Table 12
- Example 29 -135 The topical creams of Examples 29 -135 were tested using the test method described below. The results are shown in Table 16 below where each value is the mean of the values from the 3 rats in the treatment group.
- the rats are acclimated to collars around the neck on two consecutive days prior to actual dosing.
- a 50 ⁇ L dose of active cream or the appropriate placebo is applied to the right flank and gently rubbed into the skin of the rat.
- the rats are then collared and housed individually to prevent ingestion of the drug.
- the rats are anesthetized, and blood (3 mis) is collected by cardiac puncture. Blood is allowed to clot at room temperature. Serum is separated from the clot via centrifugation, and stored at -20°C until it is analyzed for MCP-1 concentration. Following blood collection, the rats are euthanized, and their skins removed.
- Tissue samples (4 from each site) from both the treated site and contralateral site (untreated) are obtained using an 8 mm punch biopsy, weighed, placed in a sealed 1.8 ml cryovial, and flash frozen in liquid nitrogen. The frozen tissue sample is then suspended in 1.0 mL RPMI medium (Celox, Hopkins, MN) containing 10%) fetal bovine serum (Sigma, St. Louis, MO), 2 mM L-glutamine, penicillin streptomycin, and 2-mercaptoethanol (RPMI complete) combined with a protease inhibitor cocktail set III (Calbiochem, San Diego, CA). The tissue is homogenized using a Tissue TearorTM (Biospec Products, Bartlesville, OK) for approximately 1 minute. The tissue suspension is then centrifuged at 2000 rpm for 10 minutes under refrigeration to pellet debris, and the supernatant is collected and stored at -20°C until analyzed for MCP-1 concentration.
- RPMI medium Celox, Hopkins, MN
- fetal bovine serum S
- ELISAs for rat MCP-1 are purchased from BioSource Intl. (Camarillo, CA) and performed according to manufacturer's specifications. Results are expressed in pg/ml, the values for the tissue samples are normalized per 200 mg of tissue. The sensitivity of the MCP-1 ELISA is 12 pg/ml.
- **MCP-1 concentration is for the treated site.
- Example 82 ***The cream of Example 82 was used in 2 separate experiments
- Table 17 summarizes topical formulations made in accordance with the present invention on a percentage weight-by-weight basis.
- Example 136 -140 The topical creams of Examples 136 -140 were tested using the test method described below. The results are shown in Table 18 below where each value is the mean of the values from the 3 rats in the treatment group. "Normal animals" did not receive any treatment.
- Tissue samples (4 from each site) from both the treated site and contralateral site (untreated) are obtained using an 8 mm punch biopsy, weighed, placed in a sealed 1.8 ml cryovial, and flash frozen in liquid nitrogen. The frozen tissue sample is then suspended in 1.0 mL RPMI medium (Celox, Hopkins, MN) containing 10%> fetal bovine serum (Sigma, St. Louis, MO), 2 mM L-glutamine, penicillin/streptomycin, and 2-mercaptoethanol (RPMI complete) combined with a protease inhibitor cocktail set III (Calbiochem, San Diego, CA).
- tissue is homogenized using a Tissue TearorTM (Biospec Products, Bartlesville, OK) for approximately 1 minute.
- the tissue suspension is then centrifuged at 2000 rpm for 10 minutes under refrigeration to pellet debris.
- the supernatant is collected and stored at -20°C until analyzed for cytokine concentrations.
- ELISAs for rat MCP-1 are purchased from BioSource Intl. (Camarillo, CA) and rat TNF- ⁇ are purchased from BD Pharmingen (San Diego, CA) and performed according to manufacturer's specifications. Results are expressed in pg/ml, the values for the tissue samples are nonnalized per 200 mg of tissue. The sensitivity of the
- MCP-1 ELISA is 12 pg/ml and the sensitivity of the TNF- ⁇ ELISA is 31 pg/ml.
Abstract
Description
Claims
Priority Applications (15)
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CA2467828A CA2467828C (en) | 2001-11-29 | 2002-11-27 | Pharmaceutical formulations comprising an immune response modifier |
MXPA04005023A MXPA04005023A (en) | 2001-11-29 | 2002-11-27 | Pharmaceutical formulations comprising an immune response modifier. |
DE60228611T DE60228611D1 (en) | 2001-11-29 | 2002-11-27 | PHARMACEUTICAL FORMULATION COMPREHENSIVE A MEDIUM MODIFYING THE IMMUNE RESPONSE |
IL16178602A IL161786A0 (en) | 2001-11-29 | 2002-11-27 | Pharmaceutical formulations comprising an immune |
EP02798470A EP1450804B9 (en) | 2001-11-29 | 2002-11-27 | Pharmaceutical formulations comprising an immune response modifier |
BR0214566-9A BR0214566A (en) | 2001-11-29 | 2002-11-27 | Pharmaceutical formulations comprising an immune response modifier |
AU2002363954A AU2002363954B2 (en) | 2001-11-29 | 2002-11-27 | Pharmaceutical formulations comprising an immune response modifier |
NZ532769A NZ532769A (en) | 2001-11-29 | 2002-11-27 | Pharmaceutical formulations comprising an immune response modifier |
KR1020047008119A KR100962751B1 (en) | 2001-11-29 | 2002-11-27 | Pharmaceutical Formulations Comprising an Immune Response Modifier |
DK02798470T DK1450804T3 (en) | 2001-11-29 | 2002-11-27 | Pharmaceutical formula rings comprising an immune response modifier |
JP2003546893A JP4447914B2 (en) | 2001-11-29 | 2002-11-27 | Drugs containing immune response modifiers |
IL161786A IL161786A (en) | 2001-11-29 | 2004-05-05 | Pharmaceutical formulation comprising an immune response modifier and hydrophobic aprotic component |
HRP20040474AA HRP20040474B1 (en) | 2001-11-29 | 2004-05-27 | Pharmaceutical formulations comprising an immune response modifier |
NO20042714A NO328298B1 (en) | 2001-11-29 | 2004-06-28 | Pharmaceutical preparations comprising the immunomodulating compound 2-methyl-1- (2-methylpropyl) -1H-imidazole [4,5-c] [1,5] naphthyridin-4-amine |
HK05106305.2A HK1073778A1 (en) | 2001-11-29 | 2005-07-25 | Pharmaceutical formulations comprising an immune response modifier |
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BR0214566A (en) | 2005-11-01 |
US20030199538A1 (en) | 2003-10-23 |
HK1073778A1 (en) | 2005-10-21 |
US20080275077A1 (en) | 2008-11-06 |
MXPA04005023A (en) | 2004-08-11 |
PL210514B1 (en) | 2012-01-31 |
KR20040062974A (en) | 2004-07-09 |
CA2467828A1 (en) | 2003-06-05 |
RU2327460C2 (en) | 2008-06-27 |
RU2004116474A (en) | 2005-06-10 |
IL161786A (en) | 2012-02-29 |
US7968562B2 (en) | 2011-06-28 |
JP2005510540A (en) | 2005-04-21 |
AU2002363954A1 (en) | 2003-06-10 |
IL161786A0 (en) | 2005-11-20 |
NZ532769A (en) | 2005-12-23 |
PL373303A1 (en) | 2005-08-22 |
EP1450804B9 (en) | 2009-04-01 |
EP1450804A1 (en) | 2004-09-01 |
KR100962751B1 (en) | 2010-06-09 |
ATE406164T1 (en) | 2008-09-15 |
ES2312659T3 (en) | 2009-03-01 |
DK1450804T3 (en) | 2009-01-05 |
HRP20040474B1 (en) | 2014-08-15 |
AU2002363954B2 (en) | 2008-04-03 |
CN1610550A (en) | 2005-04-27 |
HRP20040474A2 (en) | 2004-12-31 |
JP4447914B2 (en) | 2010-04-07 |
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