WO2005092299A1 - Patch d’amorolfine pour le traitement de l’onychomycose - Google Patents
Patch d’amorolfine pour le traitement de l’onychomycose Download PDFInfo
- Publication number
- WO2005092299A1 WO2005092299A1 PCT/FR2005/000704 FR2005000704W WO2005092299A1 WO 2005092299 A1 WO2005092299 A1 WO 2005092299A1 FR 2005000704 W FR2005000704 W FR 2005000704W WO 2005092299 A1 WO2005092299 A1 WO 2005092299A1
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- adhesive
- amorolfine
- solvent
- weight
- derivatives
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
- A61K9/7023—Transdermal patches and similar drug-containing composite devices, e.g. cataplasms
- A61K9/703—Transdermal patches and similar drug-containing composite devices, e.g. cataplasms characterised by shape or structure; Details concerning release liner or backing; Refillable patches; User-activated patches
- A61K9/7038—Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer
- A61K9/7046—Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer the adhesive comprising macromolecular compounds
- A61K9/7053—Transdermal patches of the drug-in-adhesive type, i.e. comprising drug in the skin-adhesive layer the adhesive comprising macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds, e.g. polyvinyl, polyisobutylene, polystyrene
- A61K9/7061—Polyacrylates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/10—Antimycotics
Definitions
- the invention relates to a transungual device comprising amorolfine or its derivatives, in particular its hydrochloride derivative, useful in the treatment of onychomycosis.
- Onychomycosis is a fungal infection of the nail, which results in opaque, white, thick, brittle and brittle nails. It usually affects more than one nail.
- Onychomycosis affects 2 to 13% of the population and increases to around 15-20% in people aged 40 to 60 years.
- onychomycosis treatments fall into three categories: - systemic and local antifungal treatments; - surgical procedures to remove the infected nail in whole or in part, followed by topical treatment for the exposed tissue; or - topical applications of creams, lotions, gels or solutions on the infected nail.
- systemic (oral) administration of antifungal agents for the treatment of onychomycosis only gives a therapeutic effect in the long term.
- oral treatment with the antifungal compound Ketoconazole typically requires the administration of 200 to 400 mg daily for six months before significant therapeutic benefit is obtained.
- these antifungal agents can in the long term cause significant undesirable side effects.
- Surgical removal of the nail also has a number of disadvantages, including the pain and discomfort associated with surgery and the unsightly appearance of the nail.
- the diffusion of the active principle across the surface of the nail is very low and the duration of the treatment is particularly long.
- these topical dosage forms do not allow the active ingredient to be kept in contact with the nail for an extended period of time and bandages must therefore be used.
- Another known topical form is nail polish (Murdan et al., International Journal of Pharmaceutics, 236 (2002), 1-26).
- Locéryl® is a example of varnish composed of amorolfine (5%), Eudragit RL 100, glycerol triacetate, butyl acetate, ethyl acetate and ethanol.
- the varnish is applied to the horny plate of the nail and dried for a few minutes to evaporate the solvents and leave a film of waterproof polymer on the surface of the nail.
- the active ingredient is then released from the film and diffuses through the horny plate of the nail.
- Locéryl® is applied once or twice a week for six months to the nails of the hands and nine to twelve months for the nails of the feet. The duration of treatment depends mainly on the intensity, the location of the infection and the surface of the affected nail.
- Application WO 99/40955 describes a transdermal and transungueal patch for treating onychomycosis comprising an antifungal agent, such as fluconazole, terbinafine, clotrimazole, miconazole and ketoconazole or their salts, but does not cite the amorolfine hydrochloride.
- an antifungal agent such as fluconazole, terbinafine, clotrimazole, miconazole and ketoconazole or their salts, but does not cite the amorolfine hydrochloride.
- amorolfine in particular in the hydrochloride form, is capable of diffusing efficiently through the nail plate using a transungual bioadhesive matrix device.
- a transungual device is intended to be applied exclusively to the surface of the sick nail.
- the subject of the invention is therefore a transungueal device comprising: - a sleeping support; and - a matrix adhesive layer comprising a) an active principle chosen from amorolfine and its derivatives, dissolved or dispersed in an adhesive and b) either a single absorption promoter which is exaltolide, or at least two promoters of absorption chosen from the group consisting of urea, N-acetylcysteine and lactic acid.
- the proportions of the various constituents of the matrix adhesive layer are expressed as a percentage by weight (m / m) of dry mass of the adhesive matrix layer.
- the amorolfine or its derivatives is present in an amount of between 2 and 70% by weight of the matrix adhesive layer, preferably between 20 and 40% by weight.
- the adhesive is a pressure-sensitive adhesive and is preferably chosen from polyacrylates, polyisobutylenes, silicones or a mixture of these.
- the adhesive can represent 10 to 98% by weight of the matrix adhesive layer and better still from 25 to 85% by weight.
- the coating support comprises a polymer chosen from polyurethane, polyethylene, poly (ethylene-vinyl co-acetate), polyvinyl chloride or a mixture of these.
- the transungual device according to the present invention is anhydrous. By anhydrous is meant a device containing less than 2.5% of water.
- each absorption promoter is preferably between 1 to 30% by weight of the adhesive matrix layer, better still from 2.5 to 15% by weight.
- the adhesive matrix layer contains two adsorption promoters chosen from urea, N-acetylcysteine and lactic acid.
- the absorption promoter is urea associated with lactic acid or with N-acetylcysteine.
- the absorption promoter is the urea / lactic acid mixture, each independently representing, preferably, from 2 to 6% by weight of the adhesive matrix layer.
- the absorption promoter is the urea / N-acetylcysteine mixture, each independently representing from 2 to 10% by weight of the adhesive matrix layer.
- the absorption promoter is unique and corresponds to exaltolide alone, which preferably represents 10 to 20% by weight of the adhesive matrix layer.
- the device further comprises a removable external coating which is deposited on the adhesive matrix layer.
- the subject of the invention is a process for preparing a device according to the invention comprising the steps of: i) preparation of a mixture comprising (1) the adhesive, (2) either a single promoter absorption which is exaltolide, ie at least two absorption promoters chosen from the group consisting of urea, N-acetylcysteine and lactic acid, and (3) an active principle chosen from amorolfine and its derivatives, in a solvent, said adhesive being miscible with said solvent; ii) coating the mixture obtained on the coating support; and iii) evaporation of the solvent.
- the adhesive is a polyacrylate.
- the solvent is preferably ethanol.
- the adhesive is a silicone.
- the solvent is preferably dichloromethane.
- the amorolfine or its derivatives are dissolved in the mixture obtained in i).
- solubilized form is meant a dispersion in the molecular state in a liquid, no crystallization of the active agent being visible to the naked eye or even under a cross-polarized optical microscope.
- amorolfine or its derivatives are dispersed in the mixture obtained in i).
- the mixture obtained in i) comprises two promoters for absorption of amorolfine in the nail.
- the mixture obtained in i) preferably comprises exaltolide as the sole promoter of absorption of amorolfine in the nail.
- the mixture obtained in i) additionally comprises a co-solvent capable of dissolving the amorolfine or its derivatives and / or the adsorption promoter (s) in the mixture.
- the co-solvent is preferably isopropanol.
- the solvent and, where appropriate, the co-solvent can represent from 2 to 90% by weight of the mixture obtained in step i).
- the method comprises a step iv) of placing the removable outer covering.
- the subject of the invention is the use of amorolfine or its derivatives for the manufacture of a medicament intended for the treatment of onychomycosis, said medicament being in the form of a transungueal device according to the invention .
- the subject of the invention is the use of amorolfine or its derivatives for the manufacture of a medicament intended for the treatment of onychomycosis, said medicament being in the form of a transungueal device obtained by the process according to the invention.
- the invention relates to a transungueal device comprising: - a sleeping support; and - a matrix adhesive layer comprising a) amorolfine or one of its derivatives dissolved or dispersed in an adhesive and b) either a single absorption promoter which is exaltolide, or at least two absorption promoters chosen from the group consisting of urea, N-acetylcysteine and lactic acid.
- amorolfine base amorolfine.
- amorolfine derivatives is meant in particular its pharmaceutically acceptable salts, and more particularly its hydrochloride derivative, hereinafter called amorolfine HCI.
- pharmaceutically acceptable salts means salts compatible with the skin, the mucous membranes and / or the integuments.
- Amorolfine HCI or amorolfine hydrochloride is a hydrochloric derivative of morolfine and designates the hydrochloride of R-cis-4- [3- [4- (1, 1-dimethylpropyl) phenyl] -2] acid. methylpropyl] -2,6-dimethyl-morpholine represented by the formula
- This chemical compound exerts a fungistatic and fungicidal activity by inhibiting the synthesis of sterols in the cell membrane of fungi such as yeasts, dermatophytes, molds and molds (black fungi).
- transungueal device is intended to mean a rigid or flexible device intended to be applied exclusively to the nail and to adhere thereto, making it possible to obtain the release and penetration of an active principle on a targeted nail area. This device is distinguished from a transdermal device because it does not in any case extend beyond the surface of the nail; it does not cover the adjacent skin parts, thus eliminating the risks of systemic passage.
- the patches of the invention can have various structures.
- a single-layer matrix device and a multi-layer matrix device are respectively shown in FIG. 1 and in FIG. 2.
- the single-layer matrix device consists of a sleeping support (1), of a single matrix adhesive layer (2) and the removable outer covering (3).
- the multi-layer matrix device consists of at least two matrix layers, of which at least one of the two layers is an adhesive layer. Each is separated by a membrane (4), which allows a gradual release of amorolfine or one of its derivatives, possibly in combination with other active ingredients.
- the sleeping support layer The sleeping support of the transungual device is the part of the patch visible when it is applied to the skin. It keeps the active ingredient in contact with the nail to increase the diffusion of the active ingredient inside the nail. It can be occlusive or non-occlusive.
- the sleeping support also protects the layer in contact with the nail from any contamination.
- the sleeping support will preferably be colorless or colored. It will preferably have sufficient flexibility to best adapt to the surface of the nail even in the case of an irregular surface. It consists of polymers chosen mainly so as to have inertia and chemical resistance to the components of the patch formula, namely in particular amorolfine or one of its derivatives, the adhesive and any solvents, as well as ( s) absorption promoter (s).
- the coating support comprises a polymer chosen from polyurethane, polyethylene, poly (ethylene-vinyl co-acetate), polyvinyl chloride or a mixture of these.
- coating support which may be suitable for producing a patch according to the invention, mention may be made of the compounds sold under the references Dow BLF 2015, Dow BLF 2023, Dow BLF 2050, Dow BLF 2052, Dow BLF 2057 and Dow BLF 2080 by Dow Chemicals.
- matrix adhesive layer By “matrix” or “matrix adhesive layer”, is meant within the meaning of the present invention a mixture of at least one active principle including amorolfine or one of its derivatives, in the dispersed or solubilized state, homogeneously, in a biocompatible and pressure-sensitive adhesive, mixture which also contains either exaltolide or at least two absorption promoters of amorolfine or one of its derivatives dissolved or homogeneously dispersed. In the case of a single-layer device, this matrix layer has a surface directly in contact with the sleeping support and, a second surface directly in contact with the removable external coating to be removed during the application of the patch to the area. treat.
- this removable outer coating is removed from said surface of the matrix layer which is then applied directly to the nail.
- the active ingredient and the absorption promoters diffuse through the adhesive and its mixtures, where appropriate, to the surface of the nail.
- This matrix layer therefore constitutes a unit dosage form of an amorolfine composition or one of its derivatives on an adhesive support containing either exaltolide or at least two promoters of absorption of the active principle in the nail.
- the adhesive in the sense of the present description, designates a polymer or mixture of polymers chemically inert with respect to the various components of the matrix including in particular amorolfine or one of its derivatives and absorption promoters. Its main function is to ensure the adhesion of the patch on the nail.
- the adhesives which can be used according to the invention are pressure sensitive adhesives (“Pressure Sensitive Adhesive or PSA”).
- PSA Pressure Sensitive Adhesive
- the PSA adhesives which may be suitable for producing a patch according to the invention the following two classes can be distinguished mainly: - Solvent-free adhesives, called "Hot Melts”. They are characterized by a solid state at temperatures below 180 ° F and have low viscosities above 180 ° F. They can therefore be formulated hot.
- solvent-free adhesives examples include various copolymers such as, in particular, vinyl copolymers of ethylene acetate, styrene-isopropene-styrene copolymers, styrene-butadiene-styrene copolymers and reactive polyurethanes (PUR).
- these polymers do not alone have the performance characteristics required for the production of a finished product. Consequently, this type of “Hot Melt” solvent-free adhesive will preferably be used in the presence of waxes, antioxidants, plasticizers or other additives, the aim of which will be to improve the performance of the adhesive.
- - Solvent-based adhesives These adhesives in solution have good adhesion properties used alone and therefore do not require plasticizers or other additives. In addition, these compounds can be formulated when cold.
- the “Solvent based adhesives” are the adhesives preferentially used for the production of a patch according to the invention.
- solvent based adhesives which may be suitable for producing a patch according to the invention, particularly preferred are those chosen from polyacrylates, polyisobutylenes, silicones or a mixture of these.
- polyacrylate or “acrylic”, is meant a polymer of formula:
- X preferably represents a hydrogen atom or a C ⁇ -C ⁇ alkyl 2
- Y preferably represents a hydrogen atom or an optionally substituted C ⁇ -C ⁇ 2 alkyl
- n represents the number of monomer units.
- polyisobutylene is preferably meant a polymer of formula:
- n represents the number of monomer units.
- sicone is meant a polysiloxane polymer of formula: (RR'SiO) n, in which R and R 'are identical or different and preferably represent a hydrogen atom or a C ⁇ -C ⁇ 2 alkyl group.
- Alkyl denotes an aliphatic hydrocarbon group which may be linear or branched having 1 to 12 carbon atoms, preferably 1 to 6 carbon atoms. carbon in the chain. Branched means that one or more lower alkyl groups, such as methyl, ethyl or propyl, are linked to a linear alkyl chain. "Lower alkyl” means 1 to 4 carbon atoms in the chain which can be straight or branched. The alkyl may be substituted by one or more "alkyl group substituents", which may be the same or different and include the hydroxyl, amino, alkylamino or dialkylamino groups.
- acrylic adhesives mention may in particular be made of acrylic vinyl acetate polymers sold in solution by the company
- polyisobutylenes mention may in particular be made of compounds of the paraffinic hydrocarbon polymer type, composed of macromolecules with long linear chains ending in olefinic bonds. These compounds are marketed under the name of Vistanex ® LM MS
- the adhesive is present in an amount preferably ranging from 10 to 98% by weight of the adhesive matrix layer and more preferably from 25 to 85% by weight.
- Amorolfine or its derivatives can be in the solubilized state or in the dispersed state in the adhesive matrix layer. In all cases, it is desirable that the amorolfine or one of its derivatives is uniformly distributed within the adhesive matrix layer. Better still, it has a homogeneous particle size.
- amorolfine or one of its derivatives is present in the adhesive matrix layer in an amount between 2 and 70% by weight of the adhesive matrix layer and more preferably between 20 and 40% by weight of the adhesive matrix layer.
- HCI amorolfine is used in the compositions according to the present invention.
- Amorolfine or one of its derivatives can be present in combination with another active substance suitable for transungual application having biological or pharmacological properties, in particular antibiotic or antifungal, by topical application on the area of the nail to be treated.
- the adhesive matrix layer further comprises either exaltolide or at least two promoters of absorption of amorolfine or its derivatives in the nail.
- the term "nail absorption promoter” means pharmaceutically acceptable chemical compounds capable of increasing the permeability of a biological membrane such as the skin or the nail with respect to amorolfine or its derivatives, so as to increase the kinetics of penetration of amorolfine or its derivatives through the membrane. This penetration kinetics can be measured using a cell diffusion apparatus such as the Franz cells described by Merrit et al. (Diffusion Apparatus for Skin Penetration, J. Controlled Release, 1984, 1, 161-162).
- Absorption promoters are well known in the state of the art and can in particular include ⁇ -hydroxy acids, fatty acid esters and amides thereof, fatty alcohols, fatty acids and glycerol esters in particular 2- (2-ethoxyethoxy) -ethanol, glycerolmonolaurate, propylene glycol, polyethylene glycols, polyglycosylated glycerides, unsaturated polyglycols (Labrafil M1 944CS ® , Gattefosse), saturated polyglycerides (Labrasol, Gattefosse), Labrafac HydroW12 ® (Gattefosse), decylmethylsulfoxide, pyrrolidones, salicylic acid, lactic acid, isopropyl myristate, dimethylformamide, dimethylacetamide, sodium dodecylsulfate, phospholipids, Transcutol ® (Gattefosse) oleic acid and 2- (2-ethoxyethoxy)
- Enzymatic compounds such as proteolytic enzymes which facilitate the penetration of the active principles through the keratinous tissues or through the nail, can also be used as absorption promoters.
- fatty acids which can be used according to the invention, mention may be made of capric, lauric, myristic, palmitic, stearic, arachidic, behenic, lignoceric, myristoleic, palmitoleic, petroselinic, oleic, linoleic and linolenic acids.
- Other known absorption promoters work through hydrolysis, keratolysis, denaturation or other equivalent mechanism which destroys the nail or the membrane.
- absorption promoters thus functioning, mention may be made of urea, amino acids comprising sulfydryl groups, alkylsulfoxides, and any equivalent compound which functions by destroying or denaturing the nail and / or the membrane allowing thus the pharmaceutical compound to penetrate the deep layers of the membrane.
- absorption promoters mention may in particular be made of urea, exaltolide, N-acetylcysteine and lactic acid or a mixture of these, urea associated with lactic acid or to N-acetylcysteine, and exaltolide alone, being particularly preferred.
- the absorption promoters are dissolved, and this in a homogeneous manner in the adhesive matrix layer.
- each absorption promoter represents between 0.1 to 30% by weight of the adhesive matrix layer, more preferably from 1 to 20% by weight and better still from 2 to 10% by weight. More specifically, when the absorption promoter is urea in combination with lactic acid, it is particularly preferred that urea and lactic acid each independently represent 2 to 6% by weight of the adhesive matrix layer. . When the absorption promoter is urea in combination with N-acetylcysteine, it is particularly preferred that urea and N-acetylcysteine each independently represent from 2 to 10% by weight of the adhesive matrix layer, and better still that they are present at a rate of 5 to 10% for urea and 2 to 6% for N-acetylcysteine by weight of the adhesive matrix layer. Additives The adhesive matrix layer contained in the transungueal device usable according to the invention is characterized by the fact that it does not comprise any additive, the latter having been eliminated by evaporation.
- the use of organic or aqueous solvents and / or co-solvents is necessary for the homogenization of the mixture comprising the adhesive, at least two adsorption promoters and amorolfine or one of its derivatives.
- solvents and / or co-solvents are then removed from the adhesive matrix layer by evaporation.
- solvents and / or co-solvents are the only additives which can be used according to the present invention. They are present in the adhesive matrix layer only during its manufacture.
- the removable external covering generally comprises a removable external covering.
- removable outer coating means a protective support in direct contact with the adhesive matrix layer which is removed just before application to the skin. It must therefore be chemically inert and impermeable to the formula of the patch.
- a material which may be suitable as a removable external coating mention may in particular be made of an aluminum foil, a paper containing a polyethylene sheet or a silicone polyester.
- the patch may further comprise one or more separating membranes or layers: it is then in particular a multi-layer matrix device as shown in FIG. 2.
- These separating membranes are formed from chemically inert polymers such as polyethylene or polypropylene.
- These membranes can be porous or non-porous. In the case of porous membranes, amorolfine or its derivatives are released by direct diffusion through the membrane. In the case of non-porous membranes, the speed of passage of amorolfine or its derivatives depends on its solubility in the membrane and on the thickness thereof.
- the patches according to the invention can be prepared according to conventional techniques such as the so-called “hot melt” coating, that is to say in the absence of solvent, or “in the solvent phase”.
- the subject of the invention is a process for the preparation of a transungual device comprising the steps of: i) preparation of a mixture comprising (1) the adhesive, (2) either exaltolide or at least two absorption promoters chosen from the group consisting of lactic acid, N-acetylcysteine and urea, and (3) amorolfine or one of its derivatives, in a solvent, said adhesive being miscible with said solvent; ii) coating the mixture obtained on the coating support; and iii) evaporation of the solvent.
- This process is based on the principle of the classic coating technique in the solvent phase.
- Step (i) of preparation of the adhesive mixture The choice of solvent is essentially determined by the nature of the adhesive. It is chosen according to its ability to dissolve the adhesive and its volatility. Too much volatility makes it difficult to obtain a uniform coating.
- the solvent may for example be chosen from carboxylic esters, halogenated hydrocarbons, aliphatic hydrocarbons, ethers, ketones, polar non-protic solvents and alcohols, in particular alkanols.
- carboxylic esters mention may in particular be made of methyl acetate, ethyl acetate, isopropyl acetate, butyl acetate, amyl acetate, and propionate. ethyl.
- halogenated hydrocarbons are in particular chloroform, dichloromethane, and 1,2-dichloroethane.
- aliphatic hydrocarbons include in particular pentane, hexane, heptane, and octane.
- ethers include diethyl ether, dibutyl ether, dioxane, and tetrahydrofuran.
- ketones mention may be made of acetone and methyl ethyl ketone.
- non-protic polar solvents mention may be made of acetonitrile, N, N-dimethylformamide, and dimethylsulfoxide.
- the adhesive used in step i) is a polyacrylate.
- the alcohols better still the ethanol, are preferred as solvent.
- the adhesive used in step i) is a silicone.
- halogenated hydrocarbons such as in particular dichloromethane, are preferred as solvent.
- the choice of solvent can also depend on the state in which it is desired to obtain amorolfine or its derivatives, namely dissolved or dispersed. Thus, where appropriate, when several solvents are possible, this solvent can be chosen so as to also dissolve the other constituents of the matrix layer such as amorolfine or its derivatives and / or the promoter (s) of absorption.
- co-solvent or a mixture of co-solvents may in certain cases prove to be necessary.
- the choice of co-solvent depends on the nature of the adhesive solution as well as on the nature of the constituent which it is desired to dissolve.
- the co-solvent must be compatible with the adhesive solution, in particular be miscible with respect to the solvent and the adhesive, and optionally with the other constituents. It can in particular be chosen from halogenated hydrocarbons such as dichloromethane, alcohols such as ethanol or isopropanol or a mixture of these.
- the amorolfine HCI being particularly soluble in ethanol, the latter can be useful as a co-solvent with a solvent other than ethanol.
- ethanol can therefore advantageously make it possible to dissolve both the adhesive and the HCI amorolfine, without it being necessary to add a co-solvent to dissolve the latter.
- ethanol or isopropanol, alone or in combination with dichloromethane are particularly useful as a co-solvent for dissolving the urea / lactic acid promoter couple, in particular with silicone adhesives.
- Isopropanol is particularly preferred for this purpose.
- All of the solvents and co-solvent will be present in proportions ranging from 2 to 90% by weight, preferably between 10 and 75% by weight of the mixture obtained in step (i) and more preferably between 20 and 70% .
- Coating step (ii) The more or less viscous solution or suspension obtained in step i) is coated on the coating support. This step can be performed with a commercially available film applicator.
- Stage (iii) of evaporation of the solvent The solvent is evaporated either in the open air or in heat by means of a heating base or an oven for example.
- the subject of the invention is the use of amorolfine or one of its derivatives for the manufacture of a medicament intended for the treatment of onychomycosis, said medicament being in the form of a transungueal device such as defined in this description.
- the subject of the invention is the use of amorolfine or one of its derivatives for the manufacture of a medicament intended for the treatment of onychomycosis, said medicament being in the form of a transungueal device obtained by the method as defined in the present description.
- All types of onychomycosis are targeted, namely in particular distal-subungual onychomycosis, white proximal-subungual onychomycosis, superficial white onychomycosis and onychomycosis induced by a genus Candida.
- the amorolfine patch or one of its derivatives according to the invention is a form of administration which offers numerous advantages in the treatment of onychomycosis, in particular in that it allows local treatment, a simple and rapid application. It also has the advantage of increasing the contact time between the nail and the active principle without manipulations being necessary and of releasing the active principle continuously over a long period.
- the patches according to the present invention also have the advantage of avoiding any stage of pretreatment of the nail before application, and in particular of pretreatment by abrasion.
- the patch can be used in combination with a systemic treatment for the treatment of the nail.
- a combination of the patch according to the invention with a systemic treatment has in particular been proven to be effective in the treatment of nail pathologies, and more particularly in the treatment of onychomycosis.
- the patch according to the invention can be manufactured in any size and shape suitable for the required use, such as circular, rectangular or square shapes.
- the patch according to the invention will have a shape that is best suited to the shape of the nail, namely of oval type.
- the preferred size of the patch according to the invention is between 0.5 cm 2 and 4 cm 2 and chosen according to the location of the area to be treated.
- Another advantage of the patch according to the invention is that it can be placed on the nail for a period of one week without having to be changed every day.
- FIGURES Figure 1 is a schematic representation of a single-layer matrix device.
- Figure 2 is a schematic representation of a multi-layer matrix device.
- FIG. 3 represents, for different patch formulations, an evaluation of the release of the amorolfine HCI, expressed in terms of mass of the zones of inhibition.
- the acrylic polymer used is a polymer in solution in ethyl acetate mainly sold under the name of Duro-Tak® 387-2516 by National Starch.
- the silicone polymer BIO PSA 7-4102 ® is a solution polymer in ethyl acetate supplied by Dow Corning.
- the detachable outer coating removable outer coating 3M ® 9956 used is a polyester film supplied by 3M company.
- the side in contact with the substrate is treated with a fluoropolymer. It is compatible with the adhesives used. It is transparent, sensitive to heat and its thickness is 74 ⁇ 5 ⁇ m.
- the patches were prepared by the coating technique in the solvent phase comprising: - the mixing of all the components of the adhesive matrix layer in the solvent, the adhesive being imperatively miscible in this solvent for ensure good homogeneity of the coating; the mixture is stirred using a magnetic stirrer until a homogeneous preparation is obtained; - About 30 g of preparation are taken in order to coat the solution obtained, more or less viscous, on the coating support; - finally, the evaporation of the solvent, in the open air under a hood for 24 hours at room temperature.
- the percentages m / m represent the percentages of the various constituents expressed relative to the dry mass of the matrix layer after evaporation of the solvents.
- the coating was carried out with a KCC 101 Film applicator supplied by the company Erichsen with the coating bars with 400 ⁇ m or 100 ⁇ m thick spiral wire.
- the percentages by weight correspond to the weight of the various constituents of the solution intended to form the adhesive matrix layer after evaporation of the solvents.
- the patches are placed on previously rehydrated pork hoofs. These claws are placed on a Sabouraud agar (reference AEB152352 from AES laboratory) infected with an inoculum of Trichophyton rubrum spores, involved in onychomycosis. The agars and claws are then placed in the refrigerator at + 4 ° C for a determined time, in order to allow the diffusion of the active principle through the hoof and then the agar. The agars are then placed in an incubator for 48 hours at + 32.5 ° C, the ideal temperature for the proliferation of Trichophyton rubrum. The strain does not grow in the presence of amorolfine HCI.
- the last steps are as follows: - remove the boxes from the refrigerator after the time provided, - remove the hoofs using pliers, - place the boxes in the oven (+ 32.5 ° C) so that the Trichophyton rubrum can develop, generally 48 hours are enough to have clear zones of inhibition.
- the preparation is clear, a little liquid.
- the acrylic polymer dissolves well in ethanol, as does the amorolfine HCI.
- the patches have a more opaque appearance because the HCI amorolfine crystals are very large.
- the thicknesses are very high because the preparations are very concentrated in amorolfine HCI and adhesive.
- the formula for the matrix adhesive layer produced is as follows:
- the formula for the matrix adhesive layer produced is as follows:
- the formula for the matrix adhesive layer produced is as follows:
- the patches are very thick because there is little or no evaporation.
- Absolute ethanol is necessary to dissolve the urea.
- the patches are very thin but they remain very homogeneous.
- Exaltolide is very soluble in ethyl acetate. An additional solvent is not necessary. The final content of exaltolide in the patch is 15% (m / m), the amorolfine HCI of 30%.
- the coating is uniform.
- the operating conditions are identical for all the patches, 72 hours of diffusion in the refrigerator and test on three different points with the tabs left on the agar when passing through the oven.
- FIG. 3 represents the summary of the results of all the tests carried out on the patches.
- This microbiological evaluation shows the ability of amorolfine HCI to diffuse from differently formulated patches. This diffusion does not seem to be dependent on the nature of the adhesive (acrylic or silicone), nor to be dependent on the preparation of the active principle previously dissolved or dispersed. On the other hand, it highlights the effect of absorption promoters on the diffusion of amorolfine HCI from the patches.
- the efficacy results are generally homogeneous for urea and lactic acid with an increase in standardized efficiency of the order of 114% compared to the patches without absorption promoters.
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- Health & Medical Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Engineering & Computer Science (AREA)
- Dermatology (AREA)
- Medicinal Chemistry (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oncology (AREA)
- Communicable Diseases (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Farming Of Fish And Shellfish (AREA)
- Saccharide Compounds (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2558513A CA2558513C (fr) | 2004-03-29 | 2005-03-23 | Patch d'amorolfine pour le traitement de l'onychomycose |
AT05744610T ATE440596T1 (de) | 2004-03-29 | 2005-03-23 | Amorolfin-pflaster zur behandlung von onychomykose |
DE602005016231T DE602005016231D1 (de) | 2004-03-29 | 2005-03-23 | Amorolfin-pflaster zur behandlung von onychomykose |
EP05744610A EP1732525B1 (fr) | 2004-03-29 | 2005-03-23 | Patch d'amorolfine pour le traitement de l'onychomycose |
US11/527,545 US20070104772A1 (en) | 2004-03-29 | 2006-09-27 | Amorolfine patch for the treatment of onychomycosis |
US12/986,618 US20110218506A1 (en) | 2004-03-29 | 2011-01-07 | Amorolfine patch for the treatment of onychomycosis |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0403206A FR2867978B1 (fr) | 2004-03-29 | 2004-03-29 | Patch d'amorolfine pour le traitement de l'onychomicose |
FR0403206 | 2004-03-29 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/527,545 Continuation US20070104772A1 (en) | 2004-03-29 | 2006-09-27 | Amorolfine patch for the treatment of onychomycosis |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005092299A1 true WO2005092299A1 (fr) | 2005-10-06 |
Family
ID=34945085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2005/000704 WO2005092299A1 (fr) | 2004-03-29 | 2005-03-23 | Patch d’amorolfine pour le traitement de l’onychomycose |
Country Status (8)
Country | Link |
---|---|
US (2) | US20070104772A1 (fr) |
EP (1) | EP1732525B1 (fr) |
AT (1) | ATE440596T1 (fr) |
CA (1) | CA2558513C (fr) |
DE (1) | DE602005016231D1 (fr) |
ES (1) | ES2330453T3 (fr) |
FR (1) | FR2867978B1 (fr) |
WO (1) | WO2005092299A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2226078A2 (fr) | 2009-03-04 | 2010-09-08 | Serrix BV | Composés antifongiques et compositions |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2892023B1 (fr) * | 2005-10-14 | 2009-09-25 | Galderma Sa | Composition pharmaceutique a base d'amorolfine et d'agent filmogene hydrosoluble pour application ungueale et peri-ungueale |
DE102008006791B4 (de) * | 2008-01-30 | 2011-11-24 | Lts Lohmann Therapie-Systeme Ag | Transdermales Therapeutisches System mit Harnstoff-Komponente und Verfahren zu dessen Herstellung |
NL2003786C2 (en) * | 2009-11-11 | 2010-07-30 | Medner B V | COMPOSITION FOR TOPICAL APPLICATION, USES THEREOF, APPLICATOR DEVICE AND KIT OF PARTS. |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996019186A1 (fr) * | 1994-12-22 | 1996-06-27 | Johnson & Johnson Consumer Products, Inc. | Traitement antimycosique pour ongles |
WO1999040955A2 (fr) * | 1998-02-12 | 1999-08-19 | Watson Pharmaceuticals, Inc. | Timbre a matrice autocollante utilise dans le traitement de l'onychomycose |
WO2001015670A1 (fr) * | 1999-08-31 | 2001-03-08 | Johnson & Johnson Consumer Companies, Inc. | Traitement d'infections fongiques au moyen d'un milieu de proliferation fongique |
WO2001049283A1 (fr) * | 2000-01-03 | 2001-07-12 | Karl Kraemer | Preparations pour enlever de façon atraumatique des zones d'ongles |
WO2003020248A1 (fr) * | 2001-09-04 | 2003-03-13 | Trommsdorff Gmbh & Co. Kg Arzneimittel | Platre destine au traitement de dysfonctionnements et de troubles des ongles, notamment la sertaconazole |
WO2003020250A1 (fr) * | 2001-09-04 | 2003-03-13 | Trommsdorff Gmbh & Co. Kg Arzneimittel | Pansement pour le traitement de dysfonctionnements et de troubles relatifs a la pousse des ongles |
WO2004000291A1 (fr) * | 2002-06-21 | 2003-12-31 | Dermatrends, Inc. | Administration topique de compositions antifongiques basiques afin de traiter les infections fongiques des ongles |
WO2004021968A2 (fr) * | 2002-09-05 | 2004-03-18 | Galderma Research & Development, S.N.C. | Solution destinee a une application ungueale et peri-ungueale |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2008775C (fr) * | 1989-02-24 | 1998-12-22 | Alberto Ferro | Vernis a ongles |
US6271240B1 (en) * | 1996-05-06 | 2001-08-07 | David Lew Simon | Methods for improved regulation of endogenous dopamine in prolonged treatment of opioid addicted individuals |
US6495124B1 (en) * | 2000-02-14 | 2002-12-17 | Macrochem Corporation | Antifungal nail lacquer and method using same |
-
2004
- 2004-03-29 FR FR0403206A patent/FR2867978B1/fr not_active Expired - Fee Related
-
2005
- 2005-03-23 EP EP05744610A patent/EP1732525B1/fr active Active
- 2005-03-23 DE DE602005016231T patent/DE602005016231D1/de active Active
- 2005-03-23 AT AT05744610T patent/ATE440596T1/de not_active IP Right Cessation
- 2005-03-23 CA CA2558513A patent/CA2558513C/fr not_active Expired - Fee Related
- 2005-03-23 ES ES05744610T patent/ES2330453T3/es active Active
- 2005-03-23 WO PCT/FR2005/000704 patent/WO2005092299A1/fr not_active Application Discontinuation
-
2006
- 2006-09-27 US US11/527,545 patent/US20070104772A1/en not_active Abandoned
-
2011
- 2011-01-07 US US12/986,618 patent/US20110218506A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996019186A1 (fr) * | 1994-12-22 | 1996-06-27 | Johnson & Johnson Consumer Products, Inc. | Traitement antimycosique pour ongles |
WO1999040955A2 (fr) * | 1998-02-12 | 1999-08-19 | Watson Pharmaceuticals, Inc. | Timbre a matrice autocollante utilise dans le traitement de l'onychomycose |
WO2001015670A1 (fr) * | 1999-08-31 | 2001-03-08 | Johnson & Johnson Consumer Companies, Inc. | Traitement d'infections fongiques au moyen d'un milieu de proliferation fongique |
WO2001049283A1 (fr) * | 2000-01-03 | 2001-07-12 | Karl Kraemer | Preparations pour enlever de façon atraumatique des zones d'ongles |
WO2003020248A1 (fr) * | 2001-09-04 | 2003-03-13 | Trommsdorff Gmbh & Co. Kg Arzneimittel | Platre destine au traitement de dysfonctionnements et de troubles des ongles, notamment la sertaconazole |
WO2003020250A1 (fr) * | 2001-09-04 | 2003-03-13 | Trommsdorff Gmbh & Co. Kg Arzneimittel | Pansement pour le traitement de dysfonctionnements et de troubles relatifs a la pousse des ongles |
WO2004000291A1 (fr) * | 2002-06-21 | 2003-12-31 | Dermatrends, Inc. | Administration topique de compositions antifongiques basiques afin de traiter les infections fongiques des ongles |
WO2004021968A2 (fr) * | 2002-09-05 | 2004-03-18 | Galderma Research & Development, S.N.C. | Solution destinee a une application ungueale et peri-ungueale |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2226078A2 (fr) | 2009-03-04 | 2010-09-08 | Serrix BV | Composés antifongiques et compositions |
Also Published As
Publication number | Publication date |
---|---|
ATE440596T1 (de) | 2009-09-15 |
DE602005016231D1 (de) | 2009-10-08 |
EP1732525A1 (fr) | 2006-12-20 |
CA2558513C (fr) | 2014-02-11 |
US20110218506A1 (en) | 2011-09-08 |
ES2330453T3 (es) | 2009-12-10 |
EP1732525B1 (fr) | 2009-08-26 |
CA2558513A1 (fr) | 2005-10-06 |
FR2867978B1 (fr) | 2009-02-20 |
FR2867978A1 (fr) | 2005-09-30 |
US20070104772A1 (en) | 2007-05-10 |
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