EP3996674A1 - Composition comprenant au moins une oxazoline pour inhiber la croissance de levure du genre malassezia impliquée notamment dans les croûtes de lait - Google Patents
Composition comprenant au moins une oxazoline pour inhiber la croissance de levure du genre malassezia impliquée notamment dans les croûtes de laitInfo
- Publication number
- EP3996674A1 EP3996674A1 EP20737053.7A EP20737053A EP3996674A1 EP 3996674 A1 EP3996674 A1 EP 3996674A1 EP 20737053 A EP20737053 A EP 20737053A EP 3996674 A1 EP3996674 A1 EP 3996674A1
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- EP
- European Patent Office
- Prior art keywords
- oxazoline
- composition
- weight
- malassezia
- diester
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- 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
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/42—Oxazoles
- A61K31/421—1,3-Oxazoles, e.g. pemoline, trimethadione
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/21—Esters, e.g. nitroglycerine, selenocyanates
- A61K31/215—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids
- A61K31/22—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids of acyclic acids, e.g. pravastatin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/715—Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- 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
- A61K47/06—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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- 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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- 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
- A61K47/44—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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/37—Esters of carboxylic acids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/63—Steroids; Derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/67—Vitamins
- A61K8/678—Tocopherol, i.e. vitamin E
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/73—Polysaccharides
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
- A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
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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
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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
- A61K9/06—Ointments; Bases therefor; Other semi-solid forms, e.g. creams, sticks, gels
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
- A61Q17/005—Antimicrobial preparations
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/005—Preparations for sensitive skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
- A61Q5/006—Antidandruff preparations
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2300/00—Mixtures or combinations of active ingredients, wherein at least one active ingredient is fully defined in groups A61K31/00 - A61K41/00
Definitions
- TITLE Composition comprising at least one oxazoline for inhibiting the growth of yeast of the genus Malassezia involved in particular in cradle cap
- the present invention relates to a composition comprising at least one oxazoline, such as I ⁇ C100, making it possible to inhibit the growth of yeast of the genus Malassezia and / or to prevent and / or treat the conditions caused by the yeast Malassezia, seborrheic dermatitis such as as cradle cap, Malassezia folliculitis, dandruff, tinea versicolor or pityriasis capitis.
- the present invention also relates to a composition comprising at least one oxazoline such as OX100, at least one compound such as the diester of malic acid and a vegetable oil oleodistillate and / or arabinogalactan, as well as its use.
- the human microbiome is made up of multiple and diverse microorganisms such as bacteria, viruses and fungi.
- the yeast Malassezia which is part of the Basidiomycetes, is part of the human commensal flora, especially in the scalp. This yeast releases hydrolases, such as lipases and phospholipases C, which allow the production of fatty acids from the lipids of the host of this yeast.
- hydrolases such as lipases and phospholipases C, which allow the production of fatty acids from the lipids of the host of this yeast.
- the yeast Malassezia invades the stratum corneum and the free fatty acids generated by the release of lipases are the cause of an inflammatory process.
- Malassezia yeast is involved in many skin conditions such as seborrheic dermatitis, Malassezia folliculitis, scalp dandruff, pityriasis capitis or even pityriasis versicolor.
- Seborrheic dermatitis is a fairly common chronic benign erythematous-squamous inflammatory dermatosis which develops in flare-ups and most often affects the scalp and face, in particular the nasolabial folds and eyebrows.
- One of the typical forms affects the infant and manifests as yellow scabs on the scalp (cradle cap) or face.
- Cradle Cap is a form of infantile seborrheic dermatitis (ISD) with erythematous plaques with fatty scales of the leather hairy and the incidence of which is greatest in the third month of patients' life.
- ISD infantile seborrheic dermatitis
- the hyperproduction of sebum is one of these factors: it causes the adhesion of dead corneocytes to the surface of the skin and prevents their physiological desquamation.
- the invasion of the stratum corneum by the yeast Malassezia as described above is another of these factors.
- the therapeutic strategy used in the treatment of seborrheic dermatitis aims to regulate the production of sebum, calm inflammation of the skin and reduce the development of the yeast Malassezia.
- This treatment involves the use of anti-inflammatory drugs such as topical corticosteroids and antifungals such as ketoconazole, lithium gluconate or ciclopiroxolamine.
- Treatment may also involve emollients such as mineral or olive oils or petroleum jelly and keratolytics such as salicylic acid.
- the Applicant In its French patent application No. 01/16917, the Applicant describes the use of oxazolines, which allow the inhibition of the migration of Langerhans cells. In its international patent application WO 2004/112741, the Applicant also describes the use of a composition comprising at least one oxazoline as a slimming agent. In its international patent application WO 2006/114443, the Applicant further describes the depigmenting or lightening action of the complexion of a composition comprising at least one oxazoline.
- compositions comprising oxazolines, in which the oxazolines are promoters of penetration of physiological active agents through the stratum corneum layer of the skin.
- oxazolines are capable of inhibiting the growth of microorganisms, in particular of inhibiting the growth of yeasts of the genus Malassezia.
- a composition comprising at least one oxazoline as active principle, in particular 2-undecyl-4,4-dimethyl-1, 3-oxazoline called 0X100, can be used in the inhibition of growth.
- the oxazolines according to the invention make it possible in particular to inhibit the growth of yeasts of the genus Malassezia and to act as an anti-inflammatory, soothing agent and anti-itching agent.
- the present invention relates to a composition, such as a pharmaceutical, dermatological or cosmetic composition, comprising at least one oxazoline, for its use in the inhibition of the growth of microorganisms, in particular in the inhibition of the growth of yeast of the genus Malassezia.
- a composition such as a pharmaceutical, dermatological or cosmetic composition, comprising at least one oxazoline, for its use in the prevention and / or treatment of pathologies induced by a yeast of the genus Malassezia.
- the present invention advantageously relates to a composition, such as a pharmaceutical, dermatological or cosmetic composition, comprising at least one oxazoline, such as I ⁇ C100, for its use in the prevention and / or treatment of seborrheic dermatitis, in particular seborrheic dermatitis.
- infantile such as cradle cap, pityriasis capitis, Malassezia folliculitis, dandruff or tinea versicolor.
- the present invention relates to a composition
- a composition comprising at least one oxazoline such as I ⁇ C100; at least one ester advantageously selected from a diester of malic acid, a diester of tartaric acid, an ester of lactic acid, a triester of citric acid and an ester of salicylic acid; and a vegetable oil distillate and / or arabinogalactan.
- composition according to the invention can be a pharmaceutical, dermatological or cosmetic composition and can be used to prevent and / or treat in particular the ailments caused by Malassezia yeast, seborrheic dermatitis, infantile seborrheic dermatitis such as cradle cap, cradle cap. pityriasis capitis, Malassezia folliculitis, dandruff or pityriasis versicolor.
- Malassezia yeast means any species and variety of yeast belonging to the genus Malassezia, also called the genus Pityrosporum. Mention may be made, for example and in a nonlimiting manner, of the following yeast species: Malassezia furfur, in particular of strain CIP 1634.86, Malassezia globosa, Malassezia restricta, Malassezia sympodialis, Malassezia obtuse, Malassezia slooffiae, Malassezia pachydermatis and Malassezia folliculitis.
- film is understood to mean unsightly clusters of dead cells present on the scalp.
- tinea versicolor is meant an infection of the skin due to Malassezia furfur which manifests itself by multiple scaly patches the color of which ranges from white to brown to pink.
- alkoxy -C O (OIC -C O) refers to an alkoxy radical comprising 1 to 6 carbon atoms.
- MIC minimum inhibitory concentration
- Malassezia folliculitis also called Malassezia folliculitis
- Malassezia folliculitis an inflammatory disorder of the skin which is typically manifested by an itchy and follicular papulopustular rash distributed over the upper trunk of young adults; this disease of fungal etiology can mimic acne vulgaris and is also called Pityrosporum folliculitis.
- the term “vegetable oil oleodistillate” means a vegetable oil which has been subjected to a step of concentration of its unsaponifiable fraction.
- the unsaponifiable matter is the fraction of a fatty substance which remains insoluble in water after prolonged action of an alkaline base and can be extracted with an organic solvent.
- the groups of substances present are: saturated or unsaturated hydrocarbons, aliphatic or terpene alcohols, sterols, phytosterols, tocopherols, carotenoid and xanthophilic pigments.
- an object of the present invention is a composition, typically a pharmaceutical or dermatological composition, comprising at least one oxazoline, for its use in inhibiting the growth of yeast of the genus Malassezia and / or for its use in the prevention and / or treatment of pathologies induced by a yeast of the genus Malassezia.
- the present invention also relates to a composition, such as a pharmaceutical, dermatological or cosmetic composition, comprising at least one oxazoline, for its use in the prevention and / or treatment of seborrheic dermatitis, in particular infantile seborrheic dermatitis such as scabs. milk, pityriasis capitis or Malassezia folliculitis.
- a composition such as a pharmaceutical, dermatological or cosmetic composition, comprising at least one oxazoline, for its use in the prevention and / or treatment of seborrheic dermatitis, in particular infantile seborrheic dermatitis such as scabs. milk, pityriasis capitis or Malassezia folliculitis.
- the present invention also relates to a composition, such as a pharmaceutical, dermatological or cosmetic composition, comprising at least one oxazoline, for its use in the prevention and / or treatment of dandruff or tinea versicolor.
- a composition such as a pharmaceutical, dermatological or cosmetic composition, comprising at least one oxazoline, for its use in the prevention and / or treatment of dandruff or tinea versicolor.
- oxazolines according to the present invention correspond to the following general formulas:
- R 1 represents an alkyl group C 1 -C 40 , preferably C 1 -C 20 , more preferably C 10 -C 15 , even more preferably C 11 -C 12 , linear or branched, saturated or unsaturated, optionally comprising one or more ethylenic unsaturation (s) as well as one or more substituent (s) chosen from the group formed by the hydroxy (OH) and alkoxy radicals in CrC 6 (OC I - C ⁇ );
- R 2 , R 3 , R 4 and R 5 represent, independently, a hydrogen atom, a hydroxyl radical, or a linear or branched, saturated or unsaturated C 1 -C 30 alkyl group, optionally comprising one or several ethylenic unsaturations as well as one or more substituent (s) chosen from the group consisting of hydroxy radicals (OH), alkoxy, C I -C O (OC -C I O) and C I -C alkoxy carbonyl O (CO
- said oxazoline is a type 1 oxazoline selected from the group consisting of 2-undecyl-4-hydroxymethyl-4-methyl-1, 3-oxazoline, 2-undecyl-4, 4-dimethyl-1, 3-oxazoline, (E) -4,4-dimethyl-2-heptadec-8-enyl-1, 3-oxazoline, 4-hydroxymethyl-4-methyl-2-heptadecyl- 1, 3-oxazoline, (E) -4-hydroxymethyl-4-methyl-2-heptadec-8-enyl-1, 3-oxazoline, 2-undecyl-4-ethyl-4-hydroxymethyl-1, 3- oxazoline.
- said oxazoline is 2-undecyl-4,4-dimethyl-1, 3-oxazoline, called 0X100, of formula:
- oxazoline compounds Numerous synthetic routes are known for preparing the oxazoline compounds according to the invention. Thus, these can be prepared by chemical synthesis by reacting a fatty acid (or a methyl ester) and an amino alcohol, most often in the presence of an azeotropic agent in order to promote the elimination of the water formed. (and methanol formed). Another possible synthetic route consists in condensing a halo-amide in the presence of a strong base or of sodium carbonate (R. M. Lusskin, J. Amer. Chem. Soc., 72, (1950), 5577). Oxazolines can also be synthesized by reaction of epoxides with nitriles, by reaction of thionyl chloride with hydroxyamides or even by action of an acid on an aziridinylphosphine.
- the present invention relates to a composition, such as a pharmaceutical, dermatological or cosmetic composition, comprising 2-undecyl-4,4-dimethyl-1, 3-oxazoline, called 0X100, for its use in the treatment and / or prevention of scalp dandruff or tinea versicolor.
- a composition such as a pharmaceutical, dermatological or cosmetic composition, comprising 2-undecyl-4,4-dimethyl-1, 3-oxazoline, called 0X100, for its use in the treatment and / or prevention of scalp dandruff or tinea versicolor.
- the composition according to the invention is characterized in that the concentration of oxazoline is advantageously between 0.01 and 10%, more advantageously between 0.01 and 3%, even more advantageously between 0.01 and 0.5%, even more advantageously between 0.05 and 0.2%, by weight of oxazoline, relative to the total weight of the composition.
- the composition according to the invention further comprises: - at least one vegetable oil oil distillate, preferably an oil distillate rich in tocopherols and / or phytosterols, even more preferably an oil distillate of sunflower oil; and or
- composition according to the invention can include a combination:
- an oxazoline such as 2-undecyl-4,4-dimethyl-1, 3-oxazoline, called 0X100;
- composition according to the invention can comprise a combination:
- an oxazoline such as 2-undecyl-4,4-dimethyl-1, 3-oxazoline, called 0X100;
- At least one vegetable oil oil distillate preferably an oil distillate rich in tocopherols and / or phytosterols, even more preferably a sunflower oil oil distillate;
- composition according to the invention can comprise a combination:
- an oxazoline such as 2-undecyl-4,4-dimethyl-1, 3-oxazoline, called 0X100; and at least one vegetable oil oil distillate, preferably an oil distillate rich in tocopherols and / or phytosterols, even more preferably an oil distillate of sunflower oil; and
- ester chosen from a malic acid diester, a tartaric acid diester, a lactic acid ester, a citric acid triester and a salicylic acid ester, preferably an acid diester malic, even more preferably di-C12-C13-alkyl-malate.
- the vegetable oil oleodistillate such as sunflower oil oleodistillate
- the vegetable oil oleodistillate is present in an amount of 0.01% to 10%, more preferably 0.5 to 5%, even more so.
- preferred from 1 to 3%, by weight relative to the total weight of the composition and / or arabinogalactan is present in an amount of 0.01% to 10%, preferably from 0.5 to 5%, moreover more preferably from 1 to 3%, by weight relative to the total weight of the composition and / or the ester, advantageously the diester of malic acid, is present in a content of 0.01% to 10%, preferably of 0.5 to 5%, even more preferably from 1 to 3%, by weight relative to the total weight of the composition.
- esters of malic acid, citric acid, lactic acid, tartaric acid and salicylic acid are used in particular for their keratolytic activities, for restoring the natural desquamation of the skin, for hydration and for their protective emollient activity of the skin.
- the esters according to the invention are obtained from the condensation of an alpha- or beta-hydroxy acid such as malic acid, citric acid, lactic acid, tartaric acid and salicylic acid, with 1 to 3 identical or different fatty alcohols of formula ROH, where R is a linear alkyl group or branched, saturated or unsaturated, C1 -C20, preferably C10-C15, preferably C12-C13 or C14 or C14-C15.
- these compounds are chosen from di-C12-C13-alkyl-malate, tri-C14-C15-alkyl-citrate, C12-D13-alkyl-lactate, di-C12-C13-alkyl-tartrate and tridecyl salicylate.
- these compounds can be the compounds marketed by the company Sasol under the trade names COSMACOL® EMI, COSMACOL® ECL, COSMACOL® ELI, COSMACOL® ETI and COSMACOL® ESI respectively.
- a malic acid diester is used, preferably di-C12-13 alkyl malate, for example the product marketed under the name COSMACOL® EMI by the company Sasol. It is a non-fatty lipid that exhibits the properties of being a high purity lipophilic emollient and keratolytic, hydrating the skin and regulating sebum production.
- Arabinogalactan advantageously contributes to the anti-inflammatory, soothing and anti-itching actions of the composition according to the invention, as well as to its keratolytic effect.
- the arabinogalactan used may be the product marketed under the name LaraCare® A200 by the company Lonza.
- Arabinogalactan, also called galactoarabinan is a natural polymer crosslinked with units of galactose and arabinose in a ratio of 6: 1 respectively.
- This polysaccharide promotes exfoliation, without irritation, by alpha-hydroxy acids such as malic acid on the skin; moreover, by virtue of its moisturizing and non-irritating properties, this compound also makes it possible to significantly reduce the insensible loss of water from the skin; these combined actions promote cell renewal.
- the vegetable oil distillates which can be used in the context of the present invention are, without limitation, the oil distillates of the following oils: passionflower, lupine, sunflower, sesame, wheat germ, palm, palm kernel, coconut, grape seed, black mustard, carnation, avocado, peanut, cotton, olive, corn, cocoa, castor, Ben, flax , rapeseed, shea butter, sweet almond, soybean, annatto, safflower, walnuts, hazelnuts, rape, or mixtures thereof.
- oils include passionflower, lupine, sunflower, sesame, wheat germ, palm, palm kernel, coconut, grape seed, black mustard, carnation, avocado, peanut, cotton, olive, corn, cocoa, castor, Ben, flax , rapeseed, shea butter, sweet almond, soybean, annatto, safflower, walnuts, hazelnuts, rape, or mixtures thereof.
- the vegetable oil oil distillates used are chosen from oil distillates of the following oils: sunflower, soybean, avocado, lupine, passionflower, sesame, wheat germ, or mixtures thereof.
- the vegetable oil oleodistillate used is rich in tocopherols and / or in phytosterols.
- the term "rich” refers to contents of tocopherols and phytosterols above the respective average contents obtained by considering all the vegetable oils known to those skilled in the art, in particular the vegetable oils mentioned in the present application.
- the vegetable oil oleodistillate used is sunflower oil distillate.
- the sunflower oil distillate stimulates the synthesis of certain skin barrier lipids and reduces the amount of inflammation mediators. It thus exerts an emollient, humectant, anti-inflammatory, soothing and anti-itching action.
- the sunflower oil distillate used is preferably the product sold under the name Soline® by the company Expanscience®.
- composition which allows the implementation of the invention comprises a pharmaceutically or dermatologically or cosmetically acceptable carrier, that is to say a carrier compatible with the skin and can be in all the galenical forms normally used for topical application, in particular in the form of an aqueous, hydroalcoholic or oily solution, of an oil-in-water or water-in-oil or multiple emulsion, of an aqueous or oily gel, of a liquid anhydrous product, of a dispersion of 'oil in an aqueous phase using spherules, these spherules possibly being polymeric nanoparticles such as nanospheres and nanocapsules or better still lipid vesicles of ionic and or nonionic type, of a transdermal device or under any other form for topical application.
- a pharmaceutically or dermatologically or cosmetically acceptable carrier that is to say a carrier compatible with the skin and can be in all the galenical forms normally used for topical application, in particular in the form of an aqueous
- This composition can be more or less fluid and have the appearance of a white or colored cream, of an ointment, of a milk, of a lotion, of a serum, of a paste, of a foam. , a gel, a shampoo, a conditioner.
- the pharmaceutically or dermatologically or cosmetically acceptable medium is a cream.
- composition according to the invention may also contain the adjuvants customary in the pharmaceutical or dermatological or cosmetic fields, such as hydrophilic or lipophilic gelling agents, hydrophilic or lipophilic active agents, thickeners, preservatives, antioxidants, solvents, perfumes, chelating agents, odor absorbers, chemical or inorganic filters, inorganic pigments, surfactants, polymers, silicone oils and coloring matters.
- the amounts of these various adjuvants are those conventionally used in the fields considered, for example from 0.01 to 20% of the total weight of the composition.
- These adjuvants depending on their nature, can be introduced into the fatty phase, into the aqueous phase, into the lipid vesicles and or into the nanoparticles.
- the proportion of the fatty phase can range from 5 to 80% by weight, preferably from 5 to 50% of the total weight of the composition.
- the oils, emulsifiers and co-emulsifiers used in the composition in emulsion form are chosen from those conventionally used in the field under consideration.
- the emulsifier and the co-emulsifier are present in the composition in a proportion ranging from 0.3 to 30% by weight, preferably from 0.5 to 20% of the total weight of the composition.
- esters of fatty acid and of polyethylene glycol such as PEG-40 stearate, PEG-100 stearate, fatty acid esters of polyol.
- PEG-40 stearate stearate
- PEG-100 stearate fatty acid esters of polyol.
- glyceryl stearate and sorbitan tnstearate glyceryl stearate and sorbitan tnstearate.
- hydrophilic gelling agents mention may in particular be made of carboxyvinyl polymers (carbomer), acrylic copolymers such as acrylate / alkylacrylate copolymers, polyacrylamides, polysaccharides, natural gums and clays, and, as lipophilic gelling agents, it is possible cite modified clays such as bentones, metal salts of fatty acids, hydrophobic silica and polyethylenes.
- the modes of administration, the dosages and the optimal galenical forms of the compounds and compositions according to the invention can be determined according to the criteria generally taken into account in establishing a pharmaceutical or dermatological or cosmetic treatment suitable for a patient such as example the extent of the skin area to be treated, the tolerance to the treatment, the type of skin.
- the invention also relates to the use of a cosmetic, dermatological or pharmaceutical composition as described above, in inhibiting the growth of yeast of the genus Malassezia and / or on its use in the prevention and / or the Treatment of pathologies induced by a yeast of the genus Malassezia and / or in the prevention and / or treatment of seborrheic dermatitis and / or in the prevention and / or treatment of cradle cap, Malassezia folliculitis, pityriasis capitis, skin dandruff hairy or tinea versicolor.
- the invention relates to the cosmetic use of the composition as described above, in the prevention and / or treatment of dandruff of the scalp or of tinea versicolor, advantageously in the prevention and / or the treatment of dandruff of the scalp.
- the invention also relates to a method for inhibiting the growth of yeast of the genus Malassezia and / or for preventing and / or treating pathologies induced by a yeast of the genus Malassezia and / or for preventing and / or treating seborrheic dermatitis and / or for preventing and / or treating cradle cap, Malassezia folliculitis, pityriasis capitis, scalp dandruff or tinea versicolor, comprising administering to a patient in need an effective amount of a cosmetic composition, dermatological or pharmaceutical as described above.
- a subject of the invention is also the use of a composition as described above for the manufacture of a pharmaceutical, dermatological or cosmetic composition intended to inhibit the growth of yeast of the genus Malassezia and / or to prevent and / or treat diseases. pathologies induced by a yeast of the Malassezia genus and / or to prevent and / or treat seborrheic dermatitis and / or to prevent and / or treat cradle cap, Malassezia folliculitis, pityriasis capitis, scalp dandruff or pityriasis versicolor.
- the present invention relates to a composition, such as a pharmaceutical, dermatological or cosmetic composition, characterized in that it comprises:
- the oxazoline is present in a content of 0.01% to 10%, preferably from 0.01 to 3%, even more advantageously between 0.01 and 0.5%, even more advantageously between 0.05 and 0.2%, by weight of oxazoline relative to the total weight of the composition
- the possible sunflower oil distillate is present in a content of 0.01% to 10%, preferably 0.5 at 5%, even more preferably from 1 to 3%, by weight relative to the total weight of the composition
- the optional arabinogalactan is present in a content of 0.01% to 10%, preferably from 0.5 to 5%, even more preferably from 1 to 3%, by weight relative to the total weight of the composition
- the malic acid diester is present in a content of 0.01% to 10%, preferably 0, 5 to 5%, even more preferably from 1 to 3%, by weight relative to the total weight of the composition.
- the invention also relates to a composition according to the second aspect of the invention, for its use in inhibiting the growth of yeast of the genus Malassezia and / or for its use in the prevention and / or treatment of pathologies induced by a yeast of the genus Malassezia, in particular for its use in the prevention and / or treatment of seborrheic dermatitis, cradle cap, Malassezia folliculitis, pityriasis capitis, dandruff or tinea versicolor.
- composition according to the present invention can be prepared by the preparation process comprising the following steps:
- oxazoline preferably the 0X100 molecule, of a malic acid diester, and either of an oil distillate of sunflower oil or of arabinogalactan or of the latter two;
- Example 1 Determination of the MIC in a solid medium of Malassezia furfur vis-à-vis cycloceramide 0X100
- Example 2 Determination of the MIC in a liquid medium of Malassezia furfur vis-à-vis cycloceramide 0X100
- the determination of the minimum inhibitory concentration of cycloceramide 0X100 is carried out according to a method suitable for liquid media in 96-well plates.
- the MIC measurement study is carried out using GLYcoDiag technology, using the microbial strain Malassezia furfur as organism (American Type Culture Collection (ATCC) reference: 14521). The cultures are reconstituted according to the indications of the collection center supplying the reference strain.
- cycloceramide 0X100 is diluted in culture medium at the following concentrations: final concentrations in culture medium (expressed in percentages by volume): 0.25%; 0.125%; 0.0625%; 0.0312%; 0.01562%; 0.0078%.
- cycloceramide 0X100 In order to determine the MIC of cycloceramide 0X100, the latter is tested in serial dilutions on 6 dilutions directly in the culture medium intended to promote the growth of the M. furfur strain (96-well microplates). Then, each dilution point is contaminated with the test strain at a rate of approximately 5.20.104 cfu / ml per well. Finally, the tests are incubated for 48 hours at 32.5 ° C. ⁇ 2.5 ° C., taking care to respect the respiratory type of the strain which is optional aero-anaerobic.
- Example 3 Action of arabinogalactan and of the malic acid diester on yeasts of the genus Malassezia: determination of their respective MICs in liquid medium on a strain of Malassezia furfur
- the minimum inhibitory concentration of arabinogalactan and malic acid diester is carried out according to a method suitable for liquid media in 96-well plates.
- the MIC measurement study is carried out using GLYcoDiag technology, using the microbial strain Malassezia furfur as organism (American Type Culture Collection (ATCC) reference: 14521). The cultures are reconstituted according to the indications of the collection center supplying the reference strain.
- the products are diluted in culture medium at the concentrations defined in the table below.
- the MIC of the product In order to determine the MIC of the product, it is tested in serial dilutions on 6 dilutions directly in the culture medium intended to promote the growth of the M. furfur strain (96-well microplates). Then, each dilution point is contaminated with the test strain at a rate of approximately 1.30.104 cfu / ml per well. Finally, the tests are incubated for 48 hours at 32.5 ° C. ⁇ 2.5 ° C., taking care to respect the respiratory type of the strain which is optional aero anaerobic.
- Example 4 Example of composition according to the invention
- Example 5 Clinical study: confirmation in human volunteers of the acceptability and compatibility of the composition according to Example 4 after application under normal conditions of use, subjective evaluation of its cosmetic qualities and its effectiveness; use test under dermatological and pediatric control
- the study is carried out on 60 babies aged 2 days to 35 months (12 are between 0 and 28 days old, 48 are between 1 month and 3 years old) and presenting cradle cap (without atopic dermatitis on the scalp and rest of the body). 28 subjects are female (46.7%) and 32 male (53.3%). Methods of use: the composition according to Example 4 is used daily until the symptoms completely disappear; the recommendations are to apply the composition to the cradle cap every day and leave it on overnight.
- D1-D20 application of the product and daily increase in tolerance by the user
- D21 final clinical examination and overall assessment of the examiners, clinical scoring, overall assessment of the examiner, self-assessment and overall assessment of the user
- the product After 20 days of use, the product showed effectiveness on cradle cap with reduction of scales, seborrhea, redness and irritation.
- the significance of the responses is recognized if the percentage of favorable responses is greater than or equal to 60%.
- the product is significantly assessed as having: sebum-regulating efficiency, kerato-regulatory efficiency, cleansing efficiency, efficiency against redness, satisfactory efficiency in the care of cradle cap and contributes to restore the balance of the scalp.
- the product is significantly evaluated as having the following characteristics, belonging to the categories of efficacy, cosmetic qualities, ease of use and overall assessment.
- Effectiveness the product quickly and effectively eliminates cradle cap, helps to peel cradle cap, promotes the elimination of scales, reduces the oily appearance of the scalp (sebum production), reduces redness, soothes the scalp , moisturizes the scalp, reduces sensations of discomfort and respects the weakened scalp.
- Cosmetic qualities the texture of the product is soft and light, the product does not stick, the product is well tolerated, the neutral smell is pleasant.
- the product is easy to apply and spreads well, on application your child reacts favorably, the elimination of scabs is easily done without rubbing, the product is easily removed, the product does not stain the sheets or clothes, the product is comfortable to use.
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1907861A FR3098394B1 (fr) | 2019-07-12 | 2019-07-12 | Composition comprenant au moins une oxazoline pour inhiber la croissance de levure du genre Malassezia impliquée notamment dans les croûtes de lait |
| PCT/EP2020/069799 WO2021009142A1 (fr) | 2019-07-12 | 2020-07-13 | Composition comprenant au moins une oxazoline pour inhiber la croissance de levure du genre malassezia impliquée notamment dans les croûtes de lait |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3996674A1 true EP3996674A1 (fr) | 2022-05-18 |
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ID=68501755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20737053.7A Pending EP3996674A1 (fr) | 2019-07-12 | 2020-07-13 | Composition comprenant au moins une oxazoline pour inhiber la croissance de levure du genre malassezia impliquée notamment dans les croûtes de lait |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US12544361B2 (fr) |
| EP (1) | EP3996674A1 (fr) |
| FR (1) | FR3098394B1 (fr) |
| WO (1) | WO2021009142A1 (fr) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3769398A (en) * | 1970-05-25 | 1973-10-30 | Colgate Palmolive Co | Polyethylenimine shampoo compositions |
| US4876249A (en) | 1987-01-12 | 1989-10-24 | Rajadhyaksha Vithal J | Compositions and method comprising heterocyclic compounds containing two heteroatoms |
| FR2834216B1 (fr) * | 2001-12-27 | 2004-04-30 | Pharmascience Lab | Composition cosmetique ou pharmaceutique comprenant au moins une oxazoline pour inhiber la migration des cellules de langerhans, et ses utilisations |
| FR2856294B1 (fr) | 2003-06-18 | 2005-08-05 | Expanscience Lab | Utilisation cosmetique d'une composition comprenant au moins une oxazoline, a titre de principe actif, comme amincissant et/ou pour prevenir et/ou traiter la cellulite |
| JP2006160623A (ja) * | 2004-12-03 | 2006-06-22 | Taiyo Kagaku Co Ltd | 抗アトピー性皮膚炎組成物 |
| FR2885128B1 (fr) | 2005-04-27 | 2007-07-06 | Expanscience Laboratoires Sa | Composition cosmetique a visee depigmentante ou eclaircissante comprenant au moins une oxazoline, a titre de principe actif depigmentant ou eclaircissant |
| FR2969496B1 (fr) * | 2010-12-22 | 2013-11-08 | Expanscience Lab | Extrait de pulpe et/ou de peau d'avocat riche en polyphenols et compositions cosmetiques, dermatologiques et nutraceutiques le comprenant |
| AU2012327209B2 (en) | 2012-02-17 | 2016-05-19 | Epitech Group S.P.A. | Compositions and methods for the modulation of specific amidases for N-acylethanolamines for use in the therapy of inflammatory diseases |
| KR101510595B1 (ko) * | 2013-10-24 | 2015-04-09 | 서울대학교산학협력단 | 유제놀을 유효성분으로 함유하는 아토피성 피부염의 예방 또는 치료용 조성물 |
-
2019
- 2019-07-12 FR FR1907861A patent/FR3098394B1/fr active Active
-
2020
- 2020-07-13 EP EP20737053.7A patent/EP3996674A1/fr active Pending
- 2020-07-13 US US17/624,692 patent/US12544361B2/en active Active
- 2020-07-13 WO PCT/EP2020/069799 patent/WO2021009142A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US20220249446A1 (en) | 2022-08-11 |
| FR3098394A1 (fr) | 2021-01-15 |
| US12544361B2 (en) | 2026-02-10 |
| WO2021009142A1 (fr) | 2021-01-21 |
| FR3098394B1 (fr) | 2022-07-08 |
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