IT9020318A1 - RETINOIC ACID-BASED WATER GEL AND ITS HUMAN AND COSMETIC MEDICINE - Google Patents
RETINOIC ACID-BASED WATER GEL AND ITS HUMAN AND COSMETIC MEDICINEInfo
- Publication number
- IT9020318A1 IT9020318A1 IT020318A IT2031890A IT9020318A1 IT 9020318 A1 IT9020318 A1 IT 9020318A1 IT 020318 A IT020318 A IT 020318A IT 2031890 A IT2031890 A IT 2031890A IT 9020318 A1 IT9020318 A1 IT 9020318A1
- Authority
- IT
- Italy
- Prior art keywords
- gel
- weight
- proportion
- retinoic acid
- gel according
- Prior art date
Links
- 239000002537 cosmetic Substances 0.000 title claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 4
- SHGAZHPCJJPHSC-YCNIQYBTSA-N all-trans-retinoic acid Chemical compound OC(=O)\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C SHGAZHPCJJPHSC-YCNIQYBTSA-N 0.000 claims description 30
- 229960001727 tretinoin Drugs 0.000 claims description 24
- 229930002330 retinoic acid Natural products 0.000 claims description 23
- 229920000858 Cyclodextrin Polymers 0.000 claims description 10
- 239000001116 FEMA 4028 Substances 0.000 claims description 8
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 claims description 8
- 235000011175 beta-cyclodextrine Nutrition 0.000 claims description 8
- 229960004853 betadex Drugs 0.000 claims description 8
- 239000003349 gelling agent Substances 0.000 claims description 7
- 150000007530 organic bases Chemical class 0.000 claims description 7
- SHGAZHPCJJPHSC-NUEINMDLSA-N Isotretinoin Chemical compound OC(=O)C=C(C)/C=C/C=C(C)C=CC1=C(C)CCCC1(C)C SHGAZHPCJJPHSC-NUEINMDLSA-N 0.000 claims description 6
- 229960005280 isotretinoin Drugs 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 5
- 239000003755 preservative agent Substances 0.000 claims description 5
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 4
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 4
- CZBZUDVBLSSABA-UHFFFAOYSA-N butylated hydroxyanisole Chemical group COC1=CC=C(O)C(C(C)(C)C)=C1.COC1=CC=C(O)C=C1C(C)(C)C CZBZUDVBLSSABA-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 235000010323 ascorbic acid Nutrition 0.000 claims description 2
- 239000011668 ascorbic acid Substances 0.000 claims description 2
- 229960005070 ascorbic acid Drugs 0.000 claims description 2
- 239000001913 cellulose Chemical class 0.000 claims description 2
- 229920002678 cellulose Chemical class 0.000 claims description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical group OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 2
- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 claims description 2
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 claims description 2
- LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical group COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 claims description 2
- 229960002216 methylparaben Drugs 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 235000010378 sodium ascorbate Nutrition 0.000 claims description 2
- PPASLZSBLFJQEF-RKJRWTFHSA-M sodium ascorbate Substances [Na+].OC[C@@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RKJRWTFHSA-M 0.000 claims description 2
- 229960005055 sodium ascorbate Drugs 0.000 claims description 2
- 159000000000 sodium salts Chemical class 0.000 claims description 2
- 235000010265 sodium sulphite Nutrition 0.000 claims description 2
- PPASLZSBLFJQEF-RXSVEWSESA-M sodium-L-ascorbate Chemical compound [Na+].OC[C@H](O)[C@H]1OC(=O)C(O)=C1[O-] PPASLZSBLFJQEF-RXSVEWSESA-M 0.000 claims description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical class COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 150000004696 coordination complex Chemical class 0.000 claims 1
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 claims 1
- 229940043276 diisopropanolamine Drugs 0.000 claims 1
- 239000000499 gel Substances 0.000 description 42
- 238000011282 treatment Methods 0.000 description 17
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 14
- 206010000496 acne Diseases 0.000 description 11
- 208000002874 Acne Vulgaris Diseases 0.000 description 10
- 208000035475 disorder Diseases 0.000 description 10
- 230000003780 keratinization Effects 0.000 description 7
- 230000001476 alcoholic effect Effects 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 201000004681 Psoriasis Diseases 0.000 description 4
- 201000010099 disease Diseases 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000002500 effect on skin Effects 0.000 description 3
- 230000002757 inflammatory effect Effects 0.000 description 3
- 230000000622 irritating effect Effects 0.000 description 3
- 230000035755 proliferation Effects 0.000 description 3
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- 241000283973 Oryctolagus cuniculus Species 0.000 description 2
- 235000006708 antioxidants Nutrition 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 230000007794 irritation Effects 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 239000000546 pharmaceutical excipient Substances 0.000 description 2
- 230000009759 skin aging Effects 0.000 description 2
- 201000010153 skin papilloma Diseases 0.000 description 2
- 230000007928 solubilization Effects 0.000 description 2
- 238000005063 solubilization Methods 0.000 description 2
- 230000000699 topical effect Effects 0.000 description 2
- 206010003694 Atrophy Diseases 0.000 description 1
- 201000009030 Carcinoma Diseases 0.000 description 1
- 208000027932 Collagen disease Diseases 0.000 description 1
- 208000002506 Darier Disease Diseases 0.000 description 1
- 201000004624 Dermatitis Diseases 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 206010023369 Keratosis follicular Diseases 0.000 description 1
- GXCLVBGFBYZDAG-UHFFFAOYSA-N N-[2-(1H-indol-3-yl)ethyl]-N-methylprop-2-en-1-amine Chemical compound CN(CCC1=CNC2=C1C=CC=C2)CC=C GXCLVBGFBYZDAG-UHFFFAOYSA-N 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 206010033554 Palmoplantar keratoderma Diseases 0.000 description 1
- 208000012641 Pigmentation disease Diseases 0.000 description 1
- 241000700159 Rattus Species 0.000 description 1
- 206010040799 Skin atrophy Diseases 0.000 description 1
- 206010043275 Teratogenicity Diseases 0.000 description 1
- 208000009621 actinic keratosis Diseases 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000000259 anti-tumor effect Effects 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 208000010668 atopic eczema Diseases 0.000 description 1
- 230000037444 atrophy Effects 0.000 description 1
- 208000002352 blister Diseases 0.000 description 1
- 239000008366 buffered solution Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000002995 comedolytic effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 210000002808 connective tissue Anatomy 0.000 description 1
- 239000003246 corticosteroid Substances 0.000 description 1
- 229960001334 corticosteroids Drugs 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 229940097362 cyclodextrins Drugs 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 208000010932 epithelial neoplasm Diseases 0.000 description 1
- HQMNCQVAMBCHCO-DJRRULDNSA-N etretinate Chemical compound CCOC(=O)\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)C=C(OC)C(C)=C1C HQMNCQVAMBCHCO-DJRRULDNSA-N 0.000 description 1
- 229960002199 etretinate Drugs 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 201000006122 hypervitaminosis A Diseases 0.000 description 1
- 206010021198 ichthyosis Diseases 0.000 description 1
- 201000004607 keratosis follicularis Diseases 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011418 maintenance treatment Methods 0.000 description 1
- 230000003211 malignant effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000010172 mouse model Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- -1 pads Substances 0.000 description 1
- 201000008743 palmoplantar keratosis Diseases 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000019612 pigmentation Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 208000017520 skin disease Diseases 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 231100000057 systemic toxicity Toxicity 0.000 description 1
- 231100000211 teratogenicity Toxicity 0.000 description 1
- 229940124597 therapeutic agent Drugs 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
-
- 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
- A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
- A61K31/19—Carboxylic acids, e.g. valproic acid
- A61K31/20—Carboxylic acids, e.g. valproic acid having a carboxyl group bound to a chain of seven or more carbon atoms, e.g. stearic, palmitic, arachidic acids
-
- 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
- A61K47/32—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers, poly(meth)acrylates, or polyvinyl pyrrolidone
-
- 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
- A61K47/38—Cellulose; Derivatives thereof
-
- 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
- A61K47/50—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 the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/69—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 the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
- A61K47/6949—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 the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit inclusion complexes, e.g. clathrates, cavitates or fullerenes
- A61K47/6951—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 the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit inclusion complexes, e.g. clathrates, cavitates or fullerenes using cyclodextrin
-
- 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
- A61K8/671—Vitamin A; Derivatives thereof, e.g. ester of vitamin A acid, ester of retinol, retinol, retinal
-
- 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
- A61K8/738—Cyclodextrins
-
- 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
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Pharmacology & Pharmacy (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Dermatology (AREA)
- Inorganic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Birds (AREA)
- Biophysics (AREA)
- General Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Biotechnology (AREA)
- Cosmetics (AREA)
- Medicinal Preparation (AREA)
- Colloid Chemistry (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Description
"GEL ACQUOSO A BASE DI ACIDO BETINOICO E SUO USO NELLA MEDICINA UMANA E NELLA COSMETICA”. "WATER GEL BASED ON BETINOIC ACID AND ITS USE IN HUMAN MEDICINE AND COSMETICS".
RIASSUNTO SUMMARY
Gel acquoso a base di acido retinoico tutto trans o 13-cis. Aqueous gel based on all-trans or 13-cis retinoic acid.
Questo gel è caratterizzato dal fatto che l'acido retinoico è presente, allo stato solubile e stabile, in una proporzione da 0,025 a 0,2% in peso, in presenza di 0,2-1,8% in peso di β-ciclodestrina e di base organica idrossilata in una proporzione tale che il pH di detto gel sia compreso tra circa 7,0 e 8,5, l'agente gelificante essendo presente in una proporzione tale che il gel abbia una viscosità compresa tra circa 1,5 Pa.s e 10 Pa.s. This gel is characterized by the fact that retinoic acid is present, in the soluble and stable state, in a proportion from 0.025 to 0.2% by weight, in the presence of 0.2-1.8% by weight of β-cyclodextrin and of hydroxylated organic base in such a proportion that the pH of said gel is comprised between about 7.0 and 8.5, the gelling agent being present in such a proportion that the gel has a viscosity comprised between about 1.5 Pa .s and 10 Pa.s.
Questo gel trova utilizzo nel campo farmaceutico e cosmetico in particolare nel trattamento di diverse forme di acne, di psoriasi e di altre affezioni dermatologiche. This gel is used in the pharmaceutical and cosmetic fields in particular in the treatment of various forms of acne, psoriasis and other dermatological affections.
DESCRIZIONE DESCRIPTION
La presente invenzione ha per oggetto un gel acquoso contenente, allo stato solubilizzato, acido retinoico tutto trans o 13-cis e il suo uso nella medicina umana e in cosmetica. The present invention relates to an aqueous gel containing, in the solubilized state, all-trans or 13-cis retinoic acid and its use in human medicine and cosmetics.
Il nuovo gel secondo l'invenzione trova in particolare applicazione nel trattamento di diverse forme di acne, psoriasi e di altre affezioni dermatologiche legate a disturbi della cheratinizzazione (differenziarlone-proliferezione) e di certe affezioni a componenti infiammatorie e/o immunoallargiche e in certe malattie di degenerazione del tessuto connettivo. Questo nuovo gel può anche essere utilizzato per la letta contro l'invecchiamento cutaneo attinico o cronologico, per attenuare o sopprimere le macchie pigmentarie cutanee e per favorire la cicatrizzazione. Esso può anche essere applicato nel campo oftalmolaglco, in particolare per il trattamento di corneopatie e presenta anche una attività antitumorale. The new gel according to the invention finds in particular application in the treatment of various forms of acne, psoriasis and other dermatological diseases related to keratinization disorders (differentiation-proliferation) and certain diseases with inflammatory and / or immune-enlargement components and in certain diseases of connective tissue degeneration. This new gel can also be used for reading against actinic or chronological skin aging, to attenuate or suppress skin pigment spots and to promote healing. It can also be applied in the ophthalmic field, in particular for the treatment of corneopathies and also has an antitumor activity.
L'acido retinoico o tretinoina (DCI) è un agente terapeutico raccomandato nel trattamento locale di diverse forme di acne come anche nel trattamento di certi disturbi della cheratinizzazione. Retinoic acid or tretinoin (DCI) is a therapeutic agent recommended in the local treatment of various forms of acne as well as in the treatment of certain disorders of keratinization.
Sono state proposte diverse forme galeniche, in particolare del gel, dei tamponi, delle creme nonché delle soluzioni con concentrazioni di acido retinoico che variano da 0,025% a 0,3%, e il cui eccipiente è essenzialmente costituito da alcool etilico a 95°, per ottenere una buona solubilizzazione. Different galenic forms have been proposed, in particular gels, pads, creams as well as solutions with retinoic acid concentrations ranging from 0.025% to 0.3%, and whose excipient is essentially constituted by ethyl alcohol at 95 °, to obtain a good solubilization.
Esistono anche dei farmaci destinati alla somministrazione orale contenenti retinoidi quali l'acido retinoico 13-cis o l'etretinato per il trattamento di acne grave, della psoriasi e di altri disturbi seri della checatinizzazione. There are also drugs intended for oral administration containing retinoids such as 13-cis retinoic acid or etretinate for the treatment of severe acne, psoriasis and other serious disorders of kecatinization.
Il maggiore inconveniente dell'acido retinoico e, in via generale, la sua tossicità sistemica (teratogenicità e effetti indesiderabili dovuti a ipervitaminosi A) e, per via locale, la sua azione irritante che può richiedere, in certi casi, l'interruzione del trattamento. The major drawback of retinoic acid is, in general, its systemic toxicity (teratogenicity and undesirable effects due to hypervitaminosis A) and, locally, its irritating action which may require, in some cases, the interruption of treatment .
Le soluzioni alcooliche allo 0,2 e 0,3%, dosate molto fortemente in acido retinoico, sono peraltro totalmente controindicate nel trattamento dell'acne e sono riservate unicamente al trattamento di disturbi della cheratinizzazione. The alcoholic solutions at 0.2 and 0.3%, dosed very strongly in retinoic acid, are however totally contraindicated in the treatment of acne and are reserved only for the treatment of keratinization disorders.
E' stato peraltro constatato che la forma di "gel dermico" dosata all- <Λ>25% poteva anche presentare un effetto irritante, in particolare dovuta alla natura dell'eccipiente contenente una forte percentuale di alcool etilico a 95°. It was also found that the form of "dermal gel" dosed at <Λ> 25% could also have an irritating effect, in particular due to the nature of the excipient containing a high percentage of ethyl alcohol at 95 °.
Fino ad ora, non è stato possibile realizzare delle forme galeniche Interamente acquose contenenti, allo stato solubllizzato, acido retinoico tutto-trans o 13-cis e presentanti una buona stabilità nel tempo. Up to now, it has not been possible to produce fully aqueous galenic forms containing, in the solubilized state, all-trans or 13-cis retinoic acid and having good stability over time.
L'acido retinoico possiede in effetti una solubilità malto debole in mezzo acquoso a causa della sua forte lipofilia e di una ridotta stabilità a causa della sua sensibilità all'ossidazione e alla luce. Indeed, retinoic acid possesses weak malt solubility in aqueous medium due to its strong lipophilicity and reduced stability due to its sensitivity to oxidation and light.
Nel brevetto U.S.A. N.4.371.673, è stato proposto di aumentare la sol dell'acido retinoico in mezzo acquoso mediante formazione di complessi con l'aiuto di ciclodestrine o loro derivati. Tuttavia, l'uso della β-ciclodestrina all'1,7% in soluzione tamponata a pH 7,5 come agente complessante, richiede tempi di complessazione di parecchi giorni e non consente peraltro di solubilizzare quantità importanti di acido retinoico. Gli studi che sono stati realizzati in funzione degli insegnamenti di questo brevetto hanno difatti messo in evidenza che le quantità solubilizzate erano limitate allo 0,02%. In U.S. Pat. No. 4,371,673, it has been proposed to increase the sol of retinoic acid in aqueous medium by forming complexes with the help of cyclodextrins or their derivatives. However, the use of 1.7% β-cyclodextrin in a buffered solution at pH 7.5 as complexing agent requires complexation times of several days and does not allow the solubilization of significant quantities of retinoic acid. The studies that have been carried out according to the teachings of this patent have in fact highlighted that the solubilized quantities were limited to 0.02%.
Peraltro, a seconda delle proporzioni di acido retinoico da solubilizzare, la stabilità fisica del complesso è difficile da controllare e il complesso ha la tendenza a riprecipitare nel tempo sotto forma microLa presenta invenzione si propone di fornire una nuova forma di somministrazione dell'acido retinoico sotto forma di un gel acquoso in cui l'acido retinoico è più solubile e stabile. Questo gel è peraltro piacevole da utilizzare e non provoca alcun effetto irritante mediante applicazione locale sulla pelle. Moreover, depending on the proportions of retinoic acid to be solubilized, the physical stability of the complex is difficult to control and the complex has a tendency to re-precipitate over time in the micro form. The present invention aims to provide a new form of administration of the retinoic acid under form of an aqueous gel in which retinoic acid is more soluble and stable. This gel is also pleasant to use and does not cause any irritating effect by local application on the skin.
L'uso di una composizione per uso terapeutico o cosmetico sotto forma di un gel presenta il vantaggio di essere meglio accetta dagli utenti rispetto alla forma liquida a causa di una più grande facilità di applicazione sulle parti della pelle da trattare. The use of a composition for therapeutic or cosmetic use in the form of a gel has the advantage of being better accepted by users than the liquid form due to a greater ease of application on the parts of the skin to be treated.
La presente invenzione ha quindi per oggetto, a titolo di nuovo prodotto industriale,un gel acquoso a base di acido retinoico tutto-trans o 13-cis, per il suo uso nel campo farmaceutico, in particolare dermatologico, e nel campo cosmetico, in cui l'acido retinoico è presente allo stato solubile e stabile in una proporzione dallo 0,025 allo 0,2% in peso, in presenza di 0,2-1,8% in peso, e preferibilmente di 0,7-1,7%, di 0-ciclodestrina e di ima base organica idrossilata in ima proporzione tale che il pH di detto gel sia compreso tra circa 7,0 e 8,5, l'agente gelificante essendo presente in una proporzione tale che il gel abbia una viscosità compreso tra circa 1,5 Pa.s e 10 Pa.s The present invention therefore relates, by way of a new industrial product, to an aqueous gel based on all-trans or 13-cis retinoic acid, for its use in the pharmaceutical field, in particular in dermatology, and in the cosmetic field, in which retinoic acid is present in the soluble and stable state in a proportion from 0.025 to 0.2% by weight, in the presence of 0.2-1.8% by weight, and preferably 0.7-1.7%, of 0-cyclodextrin and a hydroxylated organic base in such a proportion that the pH of said gel is comprised between about 7.0 and 8.5, the gelling agent being present in such a proportion that the gel has a viscosity comprised between about 1.5 Pa.s and 10 Pa.s
Mediante l'espressione "gel acquoso" come utilizzata secondo l'invenzione si deve intendere un gel avente una percentuale di acqua superiore o uguale all'85% in peso rispetto al peso totale del gel. By the expression "aqueous gel" as used according to the invention it is meant a gel having a percentage of water greater than or equal to 85% by weight with respect to the total weight of the gel.
Secondo l'invenzione, l'aumento della solubilità e la migliore stabilità dell'acido retinoico si attengano mediante la presenza simultanea della β-ciclodestrina e della base organica idrossilata che permette, fra l'altro, di garantire la salificazione dell'acido retinoico. According to the invention, the increase in solubility and the best stability of the retinoic acid are achieved by the simultaneous presence of the β-cyclodextrin and of the hydroxylated organic base which allows, among other things, to guarantee the salification of the retinoic acid.
Preferibilmente, il rapporto in peso fra l'acido retinoico e la β-ciclodestrina deve essere compreso tra 0,01 e 0,25 e preferibilmente tra 0,03 e 0,06. Preferably, the weight ratio between the retinoic acid and the β-cyclodextrin must be comprised between 0.01 and 0.25 and preferably between 0.03 and 0.06.
Le basi organiche idroesilate che si possono utilizzare per portare il pH ad un valore tra 7,8 e 8,5, e preferibilmente tra 7,5 e 8,2, si possono menzionare in particolare le animine di- e tri-idrossilate come ad esempio la dietanolammina, la dilsopropanolammina o la trietanolammina. The hydroexylated organic bases which can be used to bring the pH to a value between 7.8 and 8.5, and preferably between 7.5 and 8.2, can be mentioned in particular the di- and tri-hydroxylated amines such as for example diethanolamine, dylsopropanolamine or triethanolamine.
L'agente gelificante che permette di attenere la viscosità voluta è scelto preferibilmente nella famiglia dei polimeri derivati dall'acido acri. ad esempio il "Carbopol 940" venduto dalla Società GOODRICH o dei derivati di cellulosa quale l'idrossipropilcellulosa, ad esempio il "Klucel HF" venduto dalla Società HERCULES. The gelling agent which allows to obtain the desired viscosity is preferably selected from the family of polymers derived from acri acid. for example "Carbopol 940" sold by the GOODRICH Company or cellulose derivatives such as hydroxypropylcellulose, for example "Klucel HF" sold by the HERCULES Company.
Preferibilmente la concentrazione in agente gelificante è compresa tra 0,1 e 5% in peso rispetto al peso totale della composizione. Preferably the concentration in gelling agent is comprised between 0.1 and 5% by weight with respect to the total weight of the composition.
Secondo una forma di realizzazione preferita dell'invenzione, il gel acqu contiene inoltre almeno un agente enti-ossidante, che permette di aumentare ancora la stabilità nel tempo a temperatura ambiente;(superiore ad un anno) o a temperature elevate (superiori o uguali a 45°C). According to a preferred embodiment of the invention, the gel acqu also contains at least one oxidizing agent, which allows to further increase the stability over time at room temperature (over one year) or at high temperatures (higher than or equal to 45 ° C).
Tra questi agenti anti-ossidanti generalmente presenti nel gel in una proporzione in peso da 0,001 a 0,3%, sì possono menzionare in particolare il butìlidrossianisolo (BHA), solfito di sodio, acido ascorbico o ascorbato di sodio eventualmente associato ad un agente complessante di metalli quale l'acido etilendiamminotetraacetìco (EDTÀ). Among these antioxidant agents generally present in the gel in a proportion by weight from 0.001 to 0.3%, butylhydroxyanisole (BHA), sodium sulphite, ascorbic acid or sodium ascorbate possibly associated with a complexing agent can be mentioned in particular. of metals such as ethylenediaminetetraacetic acid (EDTA).
Il gel secondo l'invenzione può anche contenere almeno un agente conservante come ad esempio il paraidrossibenzoato di metile o il suo sale sodico in una proporzione in peso compresa tra 0,001 e 0,31. The gel according to the invention can also contain at least one preservative agent such as for example methyl parahydroxybenzoate or its sodium salt in a proportion by weight of between 0.001 and 0.31.
Conviene ben inteso che l'agente enti-ossidante e/o l'agente conservante siano scelti fra quelli che hanno una buona stabilità al.pH del gel acquoso. It is well understood that the oxidizing agent and / or the preservative agent are selected from those which have a good stability to the pH of the aqueous gel.
I gel secondo l'invenzione sono ottenuti preparando dapprima una soluzione concentrata di acido retinoico in una miscela acquosa di β-ciclodestrina e della base organica idroasilata scelta nelle proporzioni richieste, e quindi preparando separatamente un gel-madre (gel-base) acquoso contenente l'agente gelificante ed eventualmente l'agente (agenti) conservante e lo o gli antiossidanti. The gels according to the invention are obtained by first preparing a concentrated solution of retinoic acid in an aqueous mixture of β-cyclodextrin and the hydroasylated organic base selected in the required proportions, and then separately preparing an aqueous gel-base containing the gelling agent and optionally the preservative agent (s) and the antioxidant or antioxidants.
Si procede in seguito a miscelare sotto agitazione delle quantità adeguate del gel-base e della soluzione concentrata di acido retinoico per ottenere un gel finale avente il tasso voluto di acido retinoico. Adequate quantities of the gel-base and the concentrated retinoic acid solution are then mixed under stirring to obtain a final gel having the desired retinoic acid content.
II gel acquoso secondo l'invenzione è destinato: The aqueous gel according to the invention is intended:
1) al trattamento di affezioni dermatologiche legate ad un disturbo della cheratinizzazione attinente alla differenziazione e alla proliferazione, in particolare per trattare acni comuni, comedoni,polimorfi, acni nodulo cistiche, conglobate, acni senili, acni secondarie quali l'acne solare, da medicinali, professionale; 1) to the treatment of dermatological diseases related to a keratinization disorder related to differentiation and proliferation, in particular to treat common acne, comedones, polymorphs, cystic nodule, conglobate acne, senile acne, secondary acne such as solar acne, by medicines , professional;
2) al trattamento di altri tipi di disturbi della cheratinizzazione, in particolare ittiosi, stati ittiosiformi, la malattia di Darier, cheratodermie palmoplantari, laucoplasie e stati leucoplasiformi, il lichene; 2) the treatment of other types of keratinization disorders, in particular ichthyosis, ichthyosiform states, Darier's disease, palmoplantar keratoderma, laucoplasias and leukoplasiform states, lichen;
3) al trattamento di altre affezioni dermatologiche legate ad un disturbo della cheratinizzazione con una componente, infiammatoria e/o inanunoallerglca e, in particolare, tutte le forme di psoriasi siano esse cutanee, mucose o ungueali, o ancora atopla cutanea, quale l'eczema, queste composizioni potendo essere anche utilizzate in certe affezioni infiammatori non presentano disturbi della cheratinizzazione; 3) the treatment of other dermatological affections related to a keratinization disorder with an inflammatory and / or inanunoallergic component and, in particular, all forms of psoriasis whether they are cutaneous, mucous or nail plates, or even cutaneous atopla, such as eczema , since these compositions can also be used in certain inflammatory affections, they do not show keratinization disorders;
4) al trattamento di tutte le proliferazioni dermiche o epidermiche siano esse benigne o maligne, siano esse di origine virale quali verruche comuni, verruche piane e epidermodisplasie verruciformi, le proliferazioni potendo anche essere indotte da raggi ultravioletti in particolare nel qua epitelioma baso e spino cellulari; 4) to the treatment of all dermal or epidermal proliferations whether they are benign or malignant, whether they are of viral origin such as common warts, flat warts and verruciform epidermodysplasias, the proliferations can also be induced by ultraviolet rays in particular in the basal epithelioma and cellular thorns ;
5) al trattamento di altri disturbi dermatologici quali le dermatosi a vesciche e le malattie del collagene; 5) the treatment of other dermatological disorders such as blistering dermatoses and collagen diseases;
6) al trattamento di certi disturbi oftalmaologici, in particolare corneopatie, 6) to the treatment of certain ophthalmological disorders, in particular corneopathies,
er la lotta contro l'invecchiamento della pelle, sia esso fotoindotto o no per o per ridurre le pigmentazioni o cheratosi attiniche; er the fight against skin aging, whether it is photo-induced or not for or to reduce pigmentations or actinic keratoses;
8) per prevenire o guarire le stigmate da atrofia epidermica e/o dermica indotta da corticosteroidi locali o sistemici, e qualunque altra forma di atrofia cutanea. 8) to prevent or heal the stigmata of epidermal and / or dermal atrophy induced by local or systemic corticosteroids, and any other form of skin atrophy.
La podologia è variabile nella misura in cui essa dipende dalle affezic da trattare e dalla concentrazione di acido retinolco nel gel acquoso. Podiatry varies to the extent that it depends on the affections to be treated and on the concentration of retinolc acid in the aqueous gel.
Il trattamento consiste nell'applicare almeno una volta ,al giorno, preferibilmente di sera, la quantità prescritta sulle lesioni da trattare. La durata del trattamento di attacco è generalmente compresa tra 2 e 15 settimane, e deve'essere seguita da un trattamento di mantenimento ad esempio mediante applicazioni due o tre volte alla settimana., Il gel acquoso secondo l'Invenzione può anche essere utilizzato nel campo cosmetico, in particolare nell'igiene corporale e dei capelli. The treatment consists in applying at least once a day, preferably in the evening, the quantity prescribed on the lesions to be treated. The duration of the attachment treatment is generally between 2 and 15 weeks, and must be followed by a maintenance treatment, for example by means of applications two or three times a week., The aqueous gel according to the invention can also be used in the field cosmetic, particularly in body and hair hygiene.
Verranno ora dati, a titolo illustrativo e senza alcun carattere limitativo, diversi esempi di gel acquosi secondo l'invenzione. Several examples of aqueous gels according to the invention will now be given, for illustrative purposes and without any limitation.
Questo gel presenta un pH di 7,9 ed una viscosità di 2,8 Pa.s. This gel has a pH of 7.9 and a viscosity of 2.8 Pa.s.
I diversi test realizzati su questo gel hanno permesso di mettere in evidenza le seguenti proprietà: The various tests carried out on this gel have allowed to highlight the following properties:
1) assenza di irritazione mediante applicazione topica ripetuta per quattro settimane sul coniglio, 1) absence of irritation by repeated topical application for four weeks on the rabbit,
2) assenza di irritazione oculare mediante istillazione nell'occhio del coniglio (minimo 3 giorni - massimo 21 giorni), 2) absence of ocular irritation by instillation in the eye of the rabbit (minimum 3 days - maximum 21 days),
3) aumento della fotostabilità mediante esposizione alla luce naturale per 3 ore rispetto a dei gel della stessa concentrazione in mezzo alcoolico, 3) increased photostability by exposure to natural light for 3 hours compared to gels of the same concentration in an alcoholic medium,
4) buona attività comedolitica per via topica in modelli di topi Rhino, questa attività essendo uguale o superiore a quella di un gel della stessa concentrazione in mezzo alcoolico. 4) good topical comedolytic activity in Rhino mouse models, this activity being equal to or greater than that of a gel of the same concentration in an alcoholic medium.
5) Le prove dì confronto di liberazione-penetrazione realizzate sulla pelle di ratti Haìrless mostrano che con il gel acquoso, la quantità finale di acido retinoico penetrata dopo 10 ore è almeno uguale a quella dì un gel alcoolico della stessa concentrazione. Le prove comparative di lib ne ìn-vitro mostrano che l'acido retinoico è liberato più rapidamente a partire dal gel acquoso che a partire da un gel alcoolico della stessa concentrazione. Questi risultati dimostrano che la liberazione iniziale dell'acida retinoico negli strati superiori è più importante nel caso di questo gel acquoso. 5) The comparison tests of release-penetration carried out on the skin of Hairless rats show that with the aqueous gel, the final quantity of retinoic acid penetrated after 10 hours is at least equal to that of an alcoholic gel of the same concentration. Comparative tests of lib ne ìn-vitro show that retinoic acid is released more rapidly from the aqueous gel than from an alcoholic gel of the same concentration. These results demonstrate that the initial release of retinoic acid in the upper layers is more important in the case of this aqueous gel.
Questo gel presenta un pH di 7,95 ed una viscosità di 6 Pa.s. This gel has a pH of 7.95 and a viscosity of 6 Pa.s.
Questo gel presenta un pH di 7,9 ed ha una viscosità di 7,3 Pa.s. Gli studi realizzati con l'aiuto dei gel degli Esempi II e III hanno permesso anche di mettere in evidenza delle proprietà assolutamente comparabili a quelle descritte qui precedentemente per l'Esempio I. This gel has a pH of 7.9 and a viscosity of 7.3 Pa.s. The studies carried out with the help of the gels of Examples II and III also made it possible to highlight properties absolutely comparable to those described here previously for Example I.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8906422A FR2647015B1 (en) | 1989-05-17 | 1989-05-17 | AQUEOUS GEL BASED ON RETINOIC ACID AND ITS USE IN HUMAN MEDICINE AND COSMETICS |
Publications (3)
Publication Number | Publication Date |
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IT9020318A0 IT9020318A0 (en) | 1990-05-16 |
IT9020318A1 true IT9020318A1 (en) | 1991-11-16 |
IT1241141B IT1241141B (en) | 1993-12-29 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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IT20318A IT1241141B (en) | 1989-05-17 | 1990-05-16 | AETOUS RETINOIC ACID-BASED GEL AND ITS IN HUMAN MEDICINE AND COSMETICS |
Country Status (4)
Country | Link |
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AU (1) | AU5668790A (en) |
FR (1) | FR2647015B1 (en) |
IT (1) | IT1241141B (en) |
WO (1) | WO1990014082A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5134163A (en) * | 1989-09-01 | 1992-07-28 | Kligman Albert M | Methods of preventing and reducing the size of striae distensae lesions |
LU87843A1 (en) * | 1990-11-15 | 1992-08-25 | Cird Galderma | AQUEOUS GEL BASED ON RETINOIC ACID AND HYDROXYPROPYL-BETA-CYCLODEXTRIN AND ITS USE IN HUMAN MEDICINE AND COSMETICS |
AU670777B2 (en) * | 1992-04-16 | 1996-08-01 | Ortho Pharmaceutical Corporation | Aqueous gel vehicles for retinoids |
SE9300971D0 (en) * | 1993-03-24 | 1993-03-24 | Jan Wadstein | HUDVAARDSKOMPOSITION |
WO1997018245A1 (en) * | 1995-11-14 | 1997-05-22 | Farmarc Nederland B.V. | Complex of naproxen and beta-cyclodextrin |
GB2307176A (en) * | 1995-11-15 | 1997-05-21 | Todd Selwyn Everest | Anti-inflammatory clathrating agents for topical use |
JP3940209B2 (en) | 1996-11-14 | 2007-07-04 | 株式会社資生堂 | Solubilized cosmetics |
DE19713092A1 (en) * | 1997-03-27 | 1998-10-01 | Wacker Chemie Gmbh | Complexes of gamma-cyclodextrin and retinol or retinol derivatives, as well as processes for their preparation and their use |
GB9711643D0 (en) * | 1997-06-05 | 1997-07-30 | Janssen Pharmaceutica Nv | Glass thermoplastic systems |
DE19943678A1 (en) * | 1999-09-13 | 2001-03-15 | Beiersdorf Ag | Active substance combinations of surface-active citric acid esters and inclusion compounds of cyclodextrins and retinoids and cosmetic and dermatological preparations containing such mixtures |
MXPA05006082A (en) * | 2002-12-17 | 2005-11-17 | Galderma Res & Dev | Process for the chemical stabilization of a solubilized retinoid in a solvent using a base. |
FR2848451B1 (en) * | 2002-12-17 | 2007-01-12 | Galderma Res & Dev | PROCESS FOR THE CHEMICAL STABILIZATION OF A SOLUBILIZED RETINOID AND AQUEOUS COMPOSITION OBTAINED BY THE PROCESS COMPRISING AT LEAST ONE RETINOID IN SALIVED FORM |
EP1449514A1 (en) * | 2003-02-13 | 2004-08-25 | Beiersdorf AG | Skin care compositions with retinoids, ubiquinones, and biotin or carnitine |
FI20030426A (en) * | 2003-03-24 | 2004-09-25 | Tomi Jaervinen | cyclodextrin complexes |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US4371673A (en) * | 1980-07-21 | 1983-02-01 | The United States Of America As Represented By The Secretary Of The Department Of Health And Human Services | Water soluble forms of retinoids |
ZA879063B (en) * | 1986-12-22 | 1989-04-26 | Hoffmann La Roche | Use of 13-cis retinoic acid |
LU86865A1 (en) * | 1987-05-06 | 1989-01-19 | Oreal | NOVEL QUATERNARY AMMONIUM RETINOATES, THEIR USE IN COSMETICS AND DERMOPHARMACY |
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1989
- 1989-05-17 FR FR8906422A patent/FR2647015B1/en not_active Expired - Fee Related
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1990
- 1990-05-16 IT IT20318A patent/IT1241141B/en active IP Right Grant
- 1990-05-16 AU AU56687/90A patent/AU5668790A/en not_active Abandoned
- 1990-05-16 WO PCT/FR1990/000343 patent/WO1990014082A1/en unknown
Also Published As
Publication number | Publication date |
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FR2647015B1 (en) | 1994-05-06 |
AU5668790A (en) | 1990-12-18 |
IT1241141B (en) | 1993-12-29 |
IT9020318A0 (en) | 1990-05-16 |
FR2647015A1 (en) | 1990-11-23 |
WO1990014082A1 (en) | 1990-11-29 |
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