WO2003011208A2 - Composition a base de vesicules lamellaires lipidiques incorporant au moins un compose a base de dhea - Google Patents
Composition a base de vesicules lamellaires lipidiques incorporant au moins un compose a base de dhea Download PDFInfo
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- WO2003011208A2 WO2003011208A2 PCT/FR2002/002573 FR0202573W WO03011208A2 WO 2003011208 A2 WO2003011208 A2 WO 2003011208A2 FR 0202573 W FR0202573 W FR 0202573W WO 03011208 A2 WO03011208 A2 WO 03011208A2
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- dhea
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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
- A61K9/10—Dispersions; Emulsions
- A61K9/127—Synthetic bilayered vehicles, e.g. liposomes or liposomes with cholesterol as the only non-phosphatidyl surfactant
- A61K9/1271—Non-conventional liposomes, e.g. PEGylated liposomes or liposomes coated or grafted with polymers
- A61K9/1272—Non-conventional liposomes, e.g. PEGylated liposomes or liposomes coated or grafted with polymers comprising non-phosphatidyl surfactants as bilayer-forming substances, e.g. cationic lipids or non-phosphatidyl liposomes coated or grafted with polymers
Definitions
- composition based on lipid lamellar vesicles incorporating at least one compound based on DHEA.
- the invention relates to a composition comprising vesicles formed from lipid lamellar phases containing at least one DHEA-based compound. It also relates to a process for the preparation of this composition.
- DHEA By compound based on DHEA is meant within the meaning of the invention, DHEA itself, the precursors of DHEA or the derivatives of DHEA.
- Exogenous DHEA administered topically or orally, is known for its ability to promote keratinization of the epidermis (JP-07 196 467) and to treat dry skin by increasing endogenous production and sebum secretion and by strengthening thus the barrier effect of the skin (US 4,496,556).
- the use of DHEA to remedy atrophy of the dermis by inhibiting the loss of collagen and connective tissue has also been described in patent US Pat. No. 5,843,932.
- the Applicant has demonstrated the ability of DHEA to combat the papery appearance of the skin (FR 00/00349), and to modulate the pigmentation of the skin and hair (FR 99/12773).
- DHEA-based compounds have the disadvantage of being very poorly soluble in cosmetic solvents, and ⁇ to crystallize in the presence of aqueous phase. This results in a more or less significant loss of effectiveness of these compositions depending on the degree of crystallization, which goes against the objective sought.
- DHEA-based compounds have better bioavailability in the skin when they are in solubilized form in cosmetic carriers, and moreover at high rates, than when they are in crystallized form with a bad crystal size. controlled.
- bioavailability is meant, in the sense of the request, the molecular penetration of the active ingredient concerned into the living layers of the skin and in particular of the epidermis.
- DHEA-based compounds it is possible to dissolve DHEA-based compounds at 25 ° C in certain solvents such as propylene glycol, fat-soluble filters or 2-alkyl alkanols, for example, but it is necessary, for this, to have very high concentrations of solvents to dissolve high levels of DHEA-based compounds.
- solvents being preferably oily, we will seek. rather to limit their level in the final composition to have the most acceptable cosmetic feel possible and also limit any tolerance problems.
- DHEA and / or its derivatives and / or its precursors could be introduced into compositions as constituents of the lipid lamellar phases of the vesicular type encapsulating a hydrophilic phase.
- These vesicles can be either niosomes of the type described in applications EP-958856, EP-582503, EP-455528, EP-43327, or liposomes of conventional type.
- DHEA and / or its derivatives and / or precursors become, in this type of structure, one of the constituents of the lamellar phases.
- solubility parameters is meant, within the meaning of the invention the Hansen solubility parameters ⁇ d , ⁇ p and ⁇ h . These parameters are defined in the document S. Paint Technology 30, 195 (1967) “The three Dimensional Solubility Parameter- Key to Paint Component Affinities”.
- a DHEA-based compound is done by replacing the cholesterol in whole or in part by said DHEA-based compound.
- the latter is then intimately associated with the other lipids constituting the lamellar phase of the vesicles (hydrogenated lecithin or not, nonionic surfactants capable of forming lamellar phases when they are associated with cholesterol and as described in patents EP958856, EP582503, EP455528, and EP43327, and ionic surfactants intended to stabilize the vesicles obtained). They do not recrystallize in the continuous medium which is water and in which they are not soluble.
- international application WO-97/13500 describes liposomes comprising a lipid or a lipid compound and a 5D-steroid, DHEA or an organic acid derived from 5 ⁇ -steroid or DHEA.
- the vesicles described in this application are based on a salt of ⁇ -tocopherol hemisuccinate prepared beforehand, as well as a Tris salt of cholesterol hemisuccinate also prepared beforehand. These vesicles are especially intended for the treatment of obesity, and / or diabetes, and / or hypercorticoidism. The preparation of these vesicles is long and complex and does not allow large-scale exploitation.
- the subject of the present invention is therefore a composition
- a composition comprising: • a dispersion, in an external aqueous phase, of vesicles formed by lamellar lipid phases comprising at least one amphiphilic lipid and encapsulating an internal hydrophilic phase and dispersed in an external aqueous phase, said said lamellar phases not comprising succinic and / or hemisuccinic derivatives, and • at least one DHEA-based compound included in said lamellar phases.
- the incorporation of said DHEA-based compound into the lamellar phases of the vesicles makes it available in a solubilized form and effectively prevents its crystallization in the aqueous phase.
- the vesicles according to the invention promote the bioavailability of said DHEA-based compound in the skin.
- the progressive degradation of the vesicles according to the invention allows a controlled release of said DHEA-based compound which they contain.
- solubilized form is meant in the sense of the request a dispersion in the molecular state in a lyotropic phase of liquid crystal type of lamellar or hexagonal type, no crystallization of the active agent being visible to the naked eye or under microscopy cross polarization optics.
- DHEA-based compounds which can be used according to the invention are chosen from DHEA itself, DHEA precursors and DHEA derivatives.
- DHEA precursors which can be used according to the invention mention may be made of its biological precursors which are capable of transforming into DHEA during metabolism, as well as its chemical precursors which can transform into DHEA by exogenous chemical reaction. Examples of biological precursors are ⁇ 5-pregnenolone, 17 ⁇ -hydroxy pregnenolone and 17-hydroxy pregnenolone sulfate, without this list being limiting.
- Examples of chemical precursors are sapogenins and their derivatives, such as diosgenin (or spirost-5-en-3-beta-ol), hecogenin, hecogenin acetate, smilagenin and sarsapogenin, tigogenin , yamogenin and yuccagenin, as well as the natural extracts containing it, in particular fenugreek and extracts of Dioscorea such as the root of wild yam or Wild Yam, without this list being exhaustive.
- diosgenin or spirost-5-en-3-beta-ol
- hecogenin hecogenin acetate
- smilagenin and sarsapogenin tigogenin
- tigogenin tigogenin
- yamogenin and yuccagenin as well as the natural extracts containing it, in particular fenugreek and extracts of Dioscorea such as the root of wild
- DHEA DHEA
- metabolic derivatives there may be mentioned in particular ⁇ 5-androstene-3,17-diol and ⁇ 4-androstene-3,17-dione, as well as 7 ⁇ -OH DHEA, 7 ⁇ -OH DHEA, 11 ⁇ - OH DHEA, and 7-keto-DHEA, without this list being exhaustive. 7 ⁇ -OH DHEA is preferred for use in the present invention. A process for the preparation of this compound is described in particular in patent applications FR-2 771 105 and WO 94/08588.
- DHEA salts in particular water-soluble salts, such as DHEA sulfate.
- esters such as the esters of hydroxycarboxylic acids and of DHEA described in particular in US Pat. No. 5,736,537 or the other esters such as salicylate, acetate, valerate (or n-heptanoate) and enanthate of DHEA.
- DHEA derivatives DHEA carbamates, DHEA 2-hydroxy malonate esters and DHEA amino acid esters
- Mention may also be made of the 3-alkylesters of 7-keto-DHEA, for example 3-acetoxy-7-keto-DHEA, in particular 3 ⁇ -acetoxy-7-keto-DHEA.
- Ri and R 2 are independently chosen from:
- a C r C 12 alkyl group saturated or unsaturated, linear, branched or cyclic which may optionally contain one or more heteroatoms, and optionally substituted by one or more groups chosen from -OR 'and / or -SR' and / or - COOR 'and / or -NR'R' and / or halogen and / or sulfate and / or phosphate and / or aryl and / or heterocycle, said heterocycle possibly advantageously being chosen from an indole, a pyrimidine, a piperidine, a morpholine, pyran, furan, piperazine, pyridine;
- an alkylcarbonyl group the C r C 24 alkyl part of which is saturated or unsaturated, linear, branched or cyclic, and optionally substituted by one or more groups chosen from -OR 'and or -SR' and or -COOR 'and / or -NR'R 'and / or halogen and / or sulfate and / or phosphate and / or aryl and / or heterocycle
- said heterocycle can advantageously be chosen from an indole, a pyrimidine, a piperidine, a morpholine, a pyran, a furan, piperazine, pyridine;
- an arylcarbonyl group preferably a phenylcarbonyl, or an arylalkylcarbonyl group, preferably a benzylcarbonyl, optionally substituted by one or more groups -OR 'and / or -SR' and / or -COOR 'and / or -NR'R' and / or halogen and / or aryl and / or heterocycle;
- R ′ is chosen from a hydrogen atom, a C 1 -C 12 , preferably CC 6 , saturated or unsaturated, linear, branched or cyclic alkyl group which may optionally contain one or more heteroatoms, optionally functionalized with a or more groups -OR ", -COOR", halogen, -NR “R”; or with an aryl group, preferably a phenyl, optionally functionalized with one or more groups -OR ", -COOR", halogen or -NR “R”; .
- R represents a hydrogen atom, an alkyl chain, preferably C 6 -C 6 , saturated or unsaturated, linear, branched or cyclic, it being understood that in each of the groups -NR'R 'and -NR" R " , the substituents R ′, respectively R ′′, are identical or different.
- the diesters of 7-OH-DHEA and more preferably 3-O-acetyl-7-benzoyloxy-dehydroepiandrosterone which is in particular available from the company GATTEFOSSE under the trade name 3-acetoxy-7-benzoate DHEA.
- the compound or compounds based on DHEA can represent from 0.1 to 50% by weight, and preferably from 1 to 25% by weight of the lipid composition constituting the membrane of the vesicles, that is to say of the lipid lamellar phases.
- the vesicles according to the invention are preferably formed by, or comprise, from one to twenty five sheets of substantially concentric lamellar phases of the bi-molecular type. These sheets are obtained from lipids which have both the property of forming mesomorphic phases, the state of organization of which is intermediate between the crystalline state and the liquid state, and of swelling in the presence of a solution. aqueous to form said lamellar phases which will give, with stirring, the vesicles dispersed in the aqueous phase.
- the vesicles according to the invention are lipid lamellar vesicles with an aqueous core, that is to say encapsulating a hydrophilic phase, which is the internal hydrophilic phase.
- These vesicles can be either niosomes of the type of those described in. application EP 0 582 503, the teaching of which is incorporated here by reference, or the like, that is to say liposomes of conventional type.
- the lamellar phases comprise at least one nonionic amphiphilic lipid, chosen from alkyl- or polyalkylesters of polyol, optionally oxyethylenated, and polyol ethers, optionally oxyethylenated, having a melting point of at least 40 ° C.
- Non-ionic amphiphilic lipids suitable for use in the present invention are in particular glycolipids of natural or synthetic origin (for example cerebrosides), or mixtures of polyol esters and at least one acid with a hydrocarbon chain saturated comprising at least 14 carbon atoms, as well as polyol ethers and at least one alcohol with a saturated hydrocarbon chain comprising at least 14 carbon atoms.
- the nonionic amphiphilic lipid can thus consist of a mixture of esters of at least one polyol chosen from the group formed by polyethylene glycol comprising from 1 to 60 ethylene oxide units, sorbitan, sorbitan carrying 2 to 60 ethylene oxide units, glycerol carrying 2 to 30 ethylene oxide units, polyglycerols
- polyol ethers which can be used according to the invention, there may be mentioned: - linear or branched polyglycerol ethers of respective formulas
- n is an integer between 1 and 6, preferably equal to 2, and R is a radical chosen from:
- the lamellar phases can also comprise an ionic amphiphilic lipid.
- the latter can be chosen from anionic lipids and cationic lipids.
- the anionic amphiphilic lipids suitable for the implementation of the invention can be:
- neutralized anionic lipids preferably chosen from the alkali salts of diketylphosphate, and of dimyristylphosphate, in particular the sodium and potassium salts, the alkali salts of phosphatidic acid, in particular the sodium salt, the alkali salts of cholesterol sulfate, in particular the sodium salt, the alkaline salts of cholesterol phosphate, in particular the sodium salt, the lipoamino acid salts such as mono- and disodium acylglutamates, more particularly the disodium salt of N-stearoyl L-glutamic acid sold under the name Acylglutamate HS21 by the company AJINOMOTO, amphoteric lipids, preferably phospholipids, in particular 'pure soy phosphatidylethanolamine; alkylsulfonic derivatives, in particular the compounds of formula:
- R represents a C 12 to C 22 hydrocarbon radical, in particular the C 16 H 33 and C 18 H 37 radicals
- M is an alkali metal, preferably sodium.
- the canonical amphiphilic lipids which can be used in the vesicles of the invention as ionic amphiphilic lipids can be more particularly chosen from the group formed by quaternary ammonium salts, fatty amines and their salts.
- ammonium salts which are particularly suitable for implementing the invention, mention will be made of: • those represented by the following formula (II):
- radicals R, to R 4 which may be identical or different, represent an aliphatic radical, linear or branched, comprising from 1 to 30 carbon atoms, or an aromatic radical such as aryl or alkylaryl.
- the aliphatic radicals can comprise heteroatoms such as in particular oxygen, nitrogen, sulfur, halogens.
- the aliphatic radicals are, for example, chosen from alkyl, alkoxy, polyoxyalkylene (C 2 -C 6 ) radicals, alkylamide, (C 12 -C 22 ) alkyl (C 2 -C 6 ) amidoalkyl, (C 12 -C 22 ) alkyl acetate, hydroxyalkyl having approximately from 1 to 30 carbon atoms;
- X is an anion chosen from the group of halides, phosphates, acetates, lactates, (C 2 -C 6 ) alkyl sulfates, alkyl-or-alkylarylsulfonates.
- quaternary ammonium salts of formula (II) preference is given, on the one hand, to tetraalkylammonium chlorides such as, for example, dialkyldimethylammonium or alkyltrimethylammoriium chlorides, in which the alkyl radical contains from approximately 12 to 22 carbon atoms , in particular behenyltrimethylammonium chlorides, distearyl dimethyl ammonium, cetyltrimethyl ammonium, benzyl dimethyl stearyl ammonium or, alternatively, stearamidopropyldimethyl chloride (myristyl acetate) ammonium sold under the name "CERAPHYL 70" by the company VAN DYK .
- the quaternary ammonium salts of imidazolinium for example represented by the following formula (III):
- R 5 represents an alkenyl or alkyl radical containing from 8 to 30 carbon atoms, for example derived from tallow fatty acids
- R 6 represents a hydrogen atom, an alkyl radical containing from 1 to 4 carbon atoms or an alkenyl or alkyl radical comprising from 8 to 30 carbon atoms
- R 7 represents an alkyl radical containing from 1 to 4 carbon atoms
- R 8 represents a hydrogen atom, an alkyl radical containing from 1 to 4 carbon atoms
- X is an anion chosen from the group of halides, phosphates, acetates, lactates, alkyl sulfates, alkyl-or-alkylarylsulfonates.
- R 6 denote a mixture of alkenyl or alkyl radicals containing from 12 to 21 carbon atoms, for example derived from tallow fatty acids
- R 7 denotes a methyl radical
- R 8 denotes hydrogen.
- Such a product is for example sold under the name "REWOQUAT W 75" by the company REWO.
- the quaternary diammonium salts represented by the following formula (IV)
- R6 denotes an aliphatic radical containing approximately from 16 to 30 carbon atoms
- R7, R8, R9, R10, and R11 are chosen from hydrogen or an alkyl radical containing from 1 to 4 carbon atoms
- X is an anion selected from the group of halides, acetates, phosphates, nitrates and methylsulfates.
- Such quaternary diammonium salts include in particular propane diammonium dichloride.
- the lamellar phases of the vesicles of the niosome type can also contain at least one additive chosen from sterols, fatty chain alcohols and diols, amines with a fatty chain and their quaternary ammonium derivatives.
- cholesterol which, in addition to its cosmetic and / or dermopharmaceutical activity linked to its capacity to reconstitute the lipids of the skin, makes it possible to improve the stability of the vesicles by avoiding the crystallization of the surfactants with which it is associated.
- cholesterol also makes it possible to increase the retention power of the water-soluble active agents possibly contained in the hydrophilic phase encapsulated by the niosomes.
- the lamellar phases of niosome-type vesicles may for example contain from 35 to 90% by weight of non-ipnique amphiphilic lipid, from 0 to 20% by weight of ionic amphiphilic lipid, from 5 to 50% by weight of cholesterol, and from 0.1 % to 50% by weight of at least one DHEA-based compound relative to the total weight of the lipids constituting the lamellar phase.
- the lipid lamellar vesicles according to the invention can comprise not only vesicles of nonionic type such as niosomes, but also conventional liposomes, comprising at least one ionic amphiphilic lipid such as a natural or synthetic phospholipid, in particular lecithin, preferably hydrogenated, associated either with cholesterol and optionally with an ionic surfactant, or with an oxyethylenated phytosterol comprising from 2 to 50 ethylene oxide units.
- nonionic type such as niosomes
- conventional liposomes comprising at least one ionic amphiphilic lipid such as a natural or synthetic phospholipid, in particular lecithin, preferably hydrogenated, associated either with cholesterol and optionally with an ionic surfactant, or with an oxyethylenated phytosterol comprising from 2 to 50 ethylene oxide units.
- the vesicles can comprise from 50 to 99% by weight of lecithin, from 50 to 1% by weight of mixture of cholesterol and at least one compound based on DHEA, and 0 to 20% by weight of ionic surfactant, relative to the total weight from lipids constituting the lamellar phase.
- they may comprise from 40 to 80% by weight of lecithin, and from 20 to 60% by weight of mixture of oxyethylenated phytosterol and of at least one compound based on DHEA, relative to the total weight of the lipids constituting the lamellar phase.
- the amount of DHEA-based compound generally represents from 0.1 to 50% of the total weight of the lipids constituting the lamellar phase.
- the lipids may or may not have been preassociated (by fusion or by solvent).
- the lipid mixture is then introduced with vigorous stirring (rotor stator for example) in an aqueous solution at a suitable temperature. After a few minutes (generally 5 to 90 minutes), a suspension of liposomes is obtained.
- aqueous dispersion of DHEA and / or its derivatives and / or its precursors
- DHEA do not recrystallize over time (at least three days at 25 ° C)
- the constituent lipids of the vesicles usually represent from 1 to 20%, and preferably from 1 to 10%, of the total weight of the composition.
- the vesicles with an aqueous core described above are dispersed in an aqueous dispersion phase, or external aqueous phase, comprising a physiologically medium
- the aqueous dispersion phase can be gelled.
- Gelling agents which can be used according to the invention are for example. carboxyvinyl polymers (carbomer), acrylic copolymers such as acrylate / alkyl acrylate copolymers, polyacrylamides such as partially neutralized and highly crosslinked polyacrylamidomethyl propane sulfonic acid, polysaccharides, natural gums and clays.
- the aqueous dispersion phase may comprise an oily phase dispersed in said aqueous phase (oil-in-water emulsion), and / or be dispersed itself in an oily phase (water-in-oil emulsion).
- oils which can be used according to the invention there may be mentioned animal or vegetable oils, natural or synthetic essential oils, hydrocarbons such as isohexadecane and paraffin oil, halogenated carbides and silicone oils.
- fatty acid esters of polyols in particular liquid triglycerides, for example sunflower, corn, soybean oils , squash, grapeseed, jojoba, sesame, hazelnut, fish oils, glycerol tricaprocaprylate, or vegetable or animal oils of formula R., COOR 2 , formula in which R. represents the residue of
- essential oils which can be used according to the invention, mention may be made of natural or synthetic essential oils such as, for example, the oils of eucalyptus, lavandin, lavender, vetiver, litsea cubeba, lemon, sandalwood, rosemary, chamomile, savory nutmeg, hyssop cinnamon, caraway, orange, geraniol, cade and bergamot.
- fluorocarbons such as fluoroamines, for example perfluorotributylamine, fluorinated hydrocarbons, for example perfluorodecahydronaphthalene, fluoroesters and fluoroethers.
- fluorocarbons such as fluoroamines, for example perfluorotributylamine, fluorinated hydrocarbons, for example perfluorodecahydronaphthalene, fluoroesters and fluoroethers.
- said emulsion may comprise surfactants other than those constituting the vesicles, provided that these surfactants do not dissolve the vesicles in forming micelles.
- the composition according to the invention when it is in the form of an oil-in-water emulsion, may not contain any surfactant other than those forming the lipid lamellar vesicles.
- the vesicles according to the invention may indeed be able to stabilize a dispersion of oil droplets in the aqueous dispersion phase, without the need to add a surfactant to said aqueous phase.
- the composition according to the invention may alternatively be in the form of a multiple water-in-oil-in-water or oil-in-water-in-oil emulsion whose aqueous and oily phases are such that defined above.
- the vesicles of the compositions according to the invention may contain, in a known manner, one or more active compound (s) having, cosmetic and / or dermopharmaceutical activity, which, depending on their solubility characteristics, may have different locations.
- the active agents are water-soluble, they are introduced into the encapsulated hydrophilic phase of the vesicles.
- the active agents are liposoluble, they are introduced into the lipid phase constituting the membrane.
- the active ingredients are amphiphilic, they are distributed between the lipid phase and the encapsulated hydrophilic phase with a partition coefficient, which varies according to the nature of the amphiphilic active ingredient and the respective compositions of the lipid phase and of the encapsulated hydrophilic phase.
- composition according to the invention may also contain adjuvants customary in the cosmetic field, such as preservatives, antioxidants, solvents, perfumes, odor absorbers, neutralizers, sun filters, polymers, emulsifiers and coemulsifiers, and coloring matters.
- adjuvants customary in the cosmetic field such as preservatives, antioxidants, solvents, perfumes, odor absorbers, neutralizers, sun filters, polymers, emulsifiers and coemulsifiers, and coloring matters.
- depigmentants As active agents, depigmentants, emollients, moisturizers, anti-seborrheic agents, anti-acne agents, agents promoting hair regrowth, keratolytic and / or scaling agents, anti-wrinkle and tensing agents, vitamins can be used and their mixtures.
- compositions according to the invention can also contain at least one UV filter (or sun filter) which can be a chemical filter or a physical filter or a mixture of such filters.
- UV filter or sun filter
- the amounts of the various constituents of the composition according to the invention are those conventionally used in cosmetics.
- composition according to the invention can in particular constitute protection / care / makeup products for the face, the body, the scalp and the hair care.
- the present invention also relates to the cosmetic use of the composition mentioned above, for preventing or treating the signs of skin aging, intrinsic or photo-induced.
- composition mentioned above for manufacturing a preparation intended to prevent or treat atrophy of the skin or mucous membranes.
- the vesicles obtained have an average size of less than 500 nm and do not exhibit recrystallization from DHEA. They can be introduced into an emulsified support or simply gelled with a hydrophilic polymer of Carbomer or AMPS type.
- EXAMPLE 2 Composition based on niosomes containing DHEA
- the lipid association is carried out by hot mixing of the constituents. This mixture, brought to room temperature, is introduced into the aqueous phase at 90 ° C. Very vigorous stirring is maintained for 30 to 60 minutes. The suspension is then brought to 60 ° C to be homogenized using a high pressure homogenizer at 500b. A suspension of niosomes comprising DHEA is obtained, the average size of which is less than 300 nm.
- the oily phase is introduced with vigorous stirring to this vesicular suspension, the temperature of which has been reduced to 30 ° C.
- This pre-emulsion is homogenized at 500b, then the entire mixture, once brought to 25 ° C, is gelled by the gelling phase, which is dispersed using a deflocculator.
- a white, smooth and shiny cream is obtained containing 1% of DHEA.
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Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003516440A JP2004538295A (ja) | 2001-07-27 | 2002-07-18 | 少なくとも1種のdhea化合物を導入した脂質ラメラ小胞に基づく組成物 |
| EP02791503A EP1414412A2 (fr) | 2001-07-27 | 2002-07-18 | Composition a base de vesicules lamellaires lipidiques incorporant au moins un compose a base de dhea |
| AU2002334012A AU2002334012A1 (en) | 2001-07-27 | 2002-07-18 | Composition based on lipid lamellar vesicles incorporating at least a dhea compound |
| US10/484,000 US20050013833A1 (en) | 2001-07-27 | 2002-07-18 | Composition based on lipid lamellar vesicles incorporating at least a dhea compound |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR01/10111 | 2001-07-27 | ||
| FR0110111A FR2827766A1 (fr) | 2001-07-27 | 2001-07-27 | Composition a base de vesicules lamellaires lipidiques incorporant au moins un compose a base de dhea |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2003011208A2 true WO2003011208A2 (fr) | 2003-02-13 |
| WO2003011208A3 WO2003011208A3 (fr) | 2003-11-27 |
Family
ID=8866019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2002/002573 Ceased WO2003011208A2 (fr) | 2001-07-27 | 2002-07-18 | Composition a base de vesicules lamellaires lipidiques incorporant au moins un compose a base de dhea |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20050013833A1 (fr) |
| EP (1) | EP1414412A2 (fr) |
| JP (1) | JP2004538295A (fr) |
| AU (1) | AU2002334012A1 (fr) |
| FR (1) | FR2827766A1 (fr) |
| WO (1) | WO2003011208A2 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2830015A1 (fr) * | 2001-09-27 | 2003-03-28 | Berkem Sa | Compositions a base de derives de steroides |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK2020221T3 (da) * | 2007-06-19 | 2012-06-25 | Neubourg Skin Care Gmbh & Co Kg | DMS (Derma Membrane Structure) i skumcremer |
| US10045860B2 (en) | 2008-12-19 | 2018-08-14 | Amicus Design Group, Llc | Interbody vertebral prosthetic device with self-deploying screws |
| EP2335675B1 (fr) | 2009-12-10 | 2015-02-18 | Neubourg Skin Care GmbH & Co. KG | Formules de mousse sans émulsifiant et stabilisées par polymères |
| WO2013141990A1 (fr) | 2012-03-19 | 2013-09-26 | Amicus Design Group, Llc | Dispositif de fusion prothétique et orthopédique vertébral intercorps doté d'ancrages à déploiement automatique |
| US9566165B2 (en) | 2012-03-19 | 2017-02-14 | Amicus Design Group, Llc | Interbody vertebral prosthetic and orthopedic fusion device with self-deploying anchors |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2694884B1 (fr) * | 1992-08-03 | 1996-10-18 | Oreal | Composition formee d'une dispersion aqueuse de vesicules de lipides amphiphiles non-ioniques stabilisees. |
| FR2725369B1 (fr) * | 1994-10-07 | 1997-01-03 | Oreal | Composition cosmetique ou dermatologique constituee d'une emulsion huile dans eau a base de globules huileux pourvus d'un enrobage cristal liquide lamellaire |
| IL121070A (en) * | 1995-10-12 | 2004-06-20 | Supergen Inc | LIPOSOME FORMULATIONS OF 5beta STEROIDS |
| FR2803513B1 (fr) * | 2000-01-12 | 2003-12-19 | Oreal | Utilisation de la dhea et/ou de ses precurseurs ou derives pour ameliorer l'aspect papyrace de la peau |
-
2001
- 2001-07-27 FR FR0110111A patent/FR2827766A1/fr not_active Withdrawn
-
2002
- 2002-07-18 EP EP02791503A patent/EP1414412A2/fr not_active Withdrawn
- 2002-07-18 JP JP2003516440A patent/JP2004538295A/ja not_active Withdrawn
- 2002-07-18 WO PCT/FR2002/002573 patent/WO2003011208A2/fr not_active Ceased
- 2002-07-18 US US10/484,000 patent/US20050013833A1/en not_active Abandoned
- 2002-07-18 AU AU2002334012A patent/AU2002334012A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2830015A1 (fr) * | 2001-09-27 | 2003-03-28 | Berkem Sa | Compositions a base de derives de steroides |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2002334012A1 (en) | 2003-02-17 |
| EP1414412A2 (fr) | 2004-05-06 |
| US20050013833A1 (en) | 2005-01-20 |
| WO2003011208A3 (fr) | 2003-11-27 |
| FR2827766A1 (fr) | 2003-01-31 |
| JP2004538295A (ja) | 2004-12-24 |
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