WO2006082073A1 - Dosierungsformen hydroxystilben-haltiger wirkstoffe zur behandlung klimakterischer beschwerden - Google Patents
Dosierungsformen hydroxystilben-haltiger wirkstoffe zur behandlung klimakterischer beschwerden Download PDFInfo
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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
- A61K31/045—Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates
- A61K31/05—Phenols
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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
- A61K31/075—Ethers or acetals
- A61K31/085—Ethers or acetals having an ether linkage to aromatic ring nuclear carbon
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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
- A61K31/7028—Compounds having saccharide radicals attached to non-saccharide compounds by glycosidic linkages
- A61K31/7034—Compounds having saccharide radicals attached to non-saccharide compounds by glycosidic linkages attached to a carbocyclic compound, e.g. phloridzin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/13—Coniferophyta (gymnosperms)
- A61K36/15—Pinaceae (Pine family), e.g. pine or cedar
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
- A61K36/36—Caryophyllaceae (Pink family), e.g. babysbreath or soapwort
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
- A61K36/48—Fabaceae or Leguminosae (Pea or Legume family); Caesalpiniaceae; Mimosaceae; Papilionaceae
- A61K36/481—Astragalus (milkvetch)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
- A61K36/48—Fabaceae or Leguminosae (Pea or Legume family); Caesalpiniaceae; Mimosaceae; Papilionaceae
- A61K36/482—Cassia, e.g. golden shower tree
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
- A61K36/18—Magnoliophyta (angiosperms)
- A61K36/185—Magnoliopsida (dicotyledons)
- A61K36/70—Polygonaceae (Buckwheat family), e.g. spineflower or dock
- A61K36/708—Rheum (rhubarb)
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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
- A61K9/20—Pills, tablets, discs, rods
- A61K9/28—Dragees; Coated pills or tablets, e.g. with film or compression coating
- A61K9/2886—Dragees; Coated pills or tablets, e.g. with film or compression coating having two or more different drug-free coatings; Tablets of the type inert core-drug layer-inactive layer
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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- A61P13/02—Drugs for disorders of the urinary system of urine or of the urinary tract, e.g. urine acidifiers
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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- A61P19/10—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease for osteoporosis
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- A—HUMAN NECESSITIES
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- A61P25/22—Anxiolytics
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- A61P5/24—Drugs for disorders of the endocrine system of the sex hormones
Definitions
- the invention relates to novel dosage forms containing hydroxystilbene, to the production of these dosage forms and their use for the treatment of climacteric complaints of the woman, juvenile oligomenorrhoea and dysmenorrhea, primary and secondary amenorrhoea or endometritis.
- Menopause is a disorder of ovarian function, accompanied by high levels of follicle stimulating hormone (FSH) and low levels of estradiol (E2).
- FSH follicle stimulating hormone
- E2 estradiol
- the time to last menstruation is also referred to as "perimenopause.”
- perimenopause During this phase, most women notice cyclic irregularities lasting from 1 to 5 years, and in most Western countries, about 80% of peri- and postmenopausal women suffer from hot flashes and at About 30% of them experience hot flushes so often and frequently that their quality of life is significantly impaired, and the exact physiological cause of hot flashes is unknown (Ginsburg, Obstetrics and Gynecology Clinics of North America 1994; 21 (2): 381- Hot flushes follow release of gonadotropin-releasing hormone (GnRH) from the hypothalamus and are not associated with changes in estradiol and estrone levels, as are luteinizing hormone (LH), corticotro
- HRT Hormone replacement therapy
- the estrogen receptor (ER) mediates the activity of estrogens in the regulation of a number of important physiological processes, including the development and function of the female reproductive system. While the stimulation of processes in these tissues has important health benefits, stimulation of other tissues, such as the breast and uterus, especially at the peri- and postmenopausal stage, may increase the risk of cancer.
- the ER family includes two subtypes, ERa and ER ⁇ .
- ER-selective knock-out mice have shown that the typical undesirable estrogenic effects, such as endometrial hyperplasia and breast cancer, are mediated by ERa, while ER ⁇ acts as a negative regulator of ER ⁇ and for protection against hyperproliferation and carcinogenesis in tissues, where both receptors are coexpressed (Hewitt et al Brest Cancer Res 2003; 2: 345-352, Frasor et al Endocrinology 2003; 144: 3159-3166, Lindberg et al Mol Endocrinol 2003; 17: 203-208 ).
- HRT is not indicated for the treatment of women who already had an endocrine-dependent tumor or who are at high risk for cancer, especially breast cancer and endometrial cancer. Therefore, new drugs for the treatment of menopausal symptoms, which are especially free in the long-term use of the potential risks associated with HRT, very desirable.
- Rheum rhaponticum (trade name Phytoestrol ® N) a dry extract of roots of Rheum rhaponticum for follicle hormone replacement therapy, for example, for the treatment of women with climacteric symptoms, juvenile oligomenorrhea and dysmenorrhea, primary and secondary amenorrhea as well as endometritis on the market.
- the ingredients of the specific ERr 731 ® extract are rhaponticin, deoxyrhaponticin, rhapontigenin and deoxyrhapontigenin (Table 1).
- the absolute active ingredient content in the commercial product is relatively low, so that the dosing
- M / 45333-PCT Climacteric form for a drug dose of, for example, 4 mg is relatively large (400 mg tablet), which is sometimes found to be detrimental in oral administration.
- the size of the dosage form also has a detrimental effect on the production costs, since a disproportionately high proportion of formulation auxiliaries is contained relative to the amount of active ingredient, which in turn unnecessarily increases the production costs.
- a reduction of the solid dosage form is not readily achievable, since reducing the size of the dosage form makes it even more difficult to comply with the limit for the still permissible variation in the active ingredient content. This applies in particular to active compounds of the present type which tend to segregate strongly during the preparation of the solid dosage form, in particular of the active ingredient-containing tablet core.
- FR 2 835 185 describes a complex rhubarb extract obtainable from rhizomes of Rheum rhaponticum which is said to contain at least 50% hydroxystilbene, at least 50% of these hydroxystilbenes being rhaponticin, deoxyrhaponticin, astrangine and piceatannol.
- a preferred extract contains 15-50% by weight of rhaponticin, 10-35% by weight of deoxyrhaponticin, 5-10% by weight of astrangine and 0.1-3% by weight of piceatannol.
- This extract is prepared by aqueous-alcoholic extraction of rhizomes of Rheum rhaponticum, as illustrated in the examples. The total amount of rhaponticin and deoxyrhaponticin that can be achieved is only 76% by weight.
- Astrangin is present in an amount of 11% by weight, piceatannol in a proportion of 3% by weight, and anthracenosides in a proportion of 0.5% by weight.
- this extract seems to contain about 10 wt .-% further, unspecified ingredients.
- the special extract therein has biological properties which are considerably superior to the effect of the individual hydroxystilbenes, in particular those effects which the ingredients described therein are intended to have individually.
- the extract described there is said to have antioxidant, anti-tumor, anti-inflammatory and estrogenic properties.
- FR 2 835 185 does not provide a verifiable technical teaching for the alleged pharmacological applicability, let alone the alleged synergistic effect of the complex drug extract described therein.
- the experimental part only describes individual formulation examples for capsules, tablets or creams.
- any experimental data demonstrating the alleged utility for the treatment of those diseases associated with free radicals, such as accelerated aging, cancer, atherosclerosis, wrinkles, inflammatory phenomena, and the like are lacking.
- FR 2 835 185 should therefore be limited to the preparation of a specific, complex rhubarb extract by aqueous-alcoholic extraction of rhizomes of Rheum rhaponticum and the production of specific hydroxystilbene derivatives as well as the preparation of various pharmaceutical formulations.
- FR 2 835 185 can be satisfactorily processed into tablets satisfying the quality standards of the pharmaceutical industry.
- this object has been achieved by providing simpler to produce, solid dosage forms of ERR 731 ® and comparable active ingredients and drug combinations, which may also have a higher active ingredient content.
- the above object has also been achieved by providing for the first time semi-solid and liquid dosage forms of the above-described active compounds and combinations thereof.
- liquid or semisolid formulations which comprise these active ingredients and can be administered locally, are better and more precisely individually dosable, make the drug bioavailable faster and show fewer side effects such as stomach problems and allergies due to the lack of supplements such as emollients.
- liquid or semi-solid formulations are particularly easy to prepare.
- Figure 1 shows the formation of piceatannol and resveratrol in vivo in male and female dogs 24 hours after administration of 100 mg ERr 731 / kg body weight.
- Figure 2 shows the estrogenic activity of 17 ⁇ -oestradiol compared to resveratrol, cis- and trans-rhapontigenin, deoxyrhapontigenin, piceatannol and ERr 731 in a recombinant yeast screen, stably expressing ER- ⁇ .
- concentrations (X-axis) are molar concentrations with the exception of ERr 731 ® concentration, in ug / ml of indicated.
- Figure 3 shows the estrogenic activity of 17-beta estradiol compared to resveratrol, cis and trans rhapontigenin, deoxyrhapontigenin, piceatannol and ERR 731 ®, expressed as activity of alkaline phosphatase in Ishikawa cells transiently transfected with ER- ⁇ .
- concentrations (X-axis) are molar concentrations with the exception of ERr ® 731 - concentration in ug / ml of indicated.
- Figure 4 shows the results of a pharmacokinetic study Ingredient rhaponticin of ERr 731 ® in the blood of a test subject after oral administration ERr 731 ®.
- the invention relates to a solid dosage form comprising a drug-containing solid core with a pharmaceutically acceptable carrier and an active ingredient content of about 1 to 20 wt .-%, based on the total weight of the core, wherein the active ingredient is a hydroxystilbene-containing active ingredient or a Hydroxystilbene-containing active ingredient combination, selected from resveratrol and piceatannol prodrugs (precursors), in particular rhaponticin, deoxyrhaponticin, cis- and trans-Rhapontigenin, deoxyrhapontigenin and astringin; as well as resveratrol and piceatannol; and their stereoisomeric forms, in each case in the form of their salts or in the phenol form and functional derivatives, or combinations of these compounds.
- resveratrol and piceatannol prodrugs precursors
- precursors in particular rhaponticin, deoxyrhaponticin, cis- and trans-Rhapontigenin, deoxyrhap
- Resveratrol and piceatannol "prodrugs" within the meaning of the invention are, in particular, substances which can be partially or completely converted in vivo, eg in humans and / or another mammal, such as, for example, dogs, resveratrol and / or piceatannol
- sugar-containing precursors include rhaponticin, astringin and deoxyrhaponticin
- sugar-free precursors include rhapontigenin and deoxyrhapontigenin
- prodrug are glycosides or sugar-free (aglycones) natural or synthetic precursors of resveratrol or piceatannol.
- precursors are not to be understood as a functional restriction As evidenced by the test results described below, in particular the "precursors" according to the invention per se develop advantageous pharmacological effects.
- the active ingredients are substantially in the trans form.
- Salts are especially the alkali and alkaline earth phenolates of the above compounds which have one or more free phenolic hydroxyl groups. If several hydroxyl groups are present, these may be present partially or completely in the salt form.
- the active ingredient or combination of active substances to be used according to the invention is chemically synthesized or, in particular, an ingredient which can be isolated from natural or recombinant plants or an ingredient combination which can be isolated therefrom and which contains at least one of the abovementioned hydroxystilbene compounds.
- the resulting plant extracts or individual components thereof can also be subjected to derivatization reactions in order to obtain so-called functional derivatives. These are, in particular, those derivatives which can be returned to the non-derivatized starting compound in the human or animal body after administration. Particular mention should be made of ethers and ester derivatives of the compounds used according to the invention.
- etherifiable or esterifiable groups of a molecule may be derivatized.
- suitable derivatives and their preparation are described, for example, in FR 2 835 185, to which reference is hereby expressly made.
- an active ingredient combination of at least two of the above-mentioned compounds is used, such as e.g. 2, 3, 4, 5, 6, 7 or 8 individual compounds, wherein the group of resveratrol precursors (in particular deoxyrhaponticin and deoxyrpontigenin) and the piceatannol precursors (in particular rhaponticin and rhapontigenin) is represented in each case by one compound.
- group of resveratrol precursors in particular deoxyrhaponticin and deoxyrpontigenin
- the piceatannol precursors in particular rhaponticin and rhapontigenin
- the active ingredient or combination of active substances is obtainable from plants which are selected from natural plants and from genetically modified plants modified by breeding or recombinant plants which have a higher content of at least one of the desired ingredients compared to the corresponding unmodified plant.
- these plants are selected from plants of the genus Rheum spp., Astragalus spp., Cassia spp. or Picea spp. or active ingredient-containing parts of plants.
- Nonlimiting examples of suitable species of these genera are Rheum undulatum, Rheum palmatum, Rheum tataricum, Rheum officinale, Rheum wittrockii, Rheum altaicum, Rheum reticulatum, Astragalus complanatus Cassia garrettiana and Picea sitchensis.
- the active ingredient or combination of active ingredients obtainable from the roots and / or other parts of plants, in particular of Rheum rhaponticum.
- the active ingredient combination comprises substantially rhaponticin and deoxyrhaponticin, wherein the active ingredient combination in particular substantially rhaponticin and deoxyrhaponticin in a weight ratio of about 10: 1 to 1: 10, such as. in the range of about 5: 1 to 1: 5 or 4: 1 to 1: 4 or 3: 1 to 1: 3 or 2: 1 to 1: 2 or about 1: 1.
- the active ingredient combination of essentially rhaponticin and deoxyrhaponticin is contained in a weight ratio of about 2: 1 to 1: 2.
- Another preferred active ingredient combination may include rhaponticin and deoxyrhaponticin, especially in proportions given above, and rhapontigenin and / or deoxyrhapontigenin.
- M / 45333-PCT Climacteric nin and / or deoxyrhapontigenin in the total active ingredient content can vary over a wide range, and is for example in the range of about 0.01 to 20 wt .-%, in particular 0.1 to 5 wt .-%, based on the total active ingredient content.
- Total content in particular a total content of deoxyrhaponticin, deoxyrhapontigenin, rhaponticin and rhapontigenin, or a total content of rhaponticin and deoxyrhaponticin of more than 90% by weight, e.g. 91 to 100 wt .-%, or 92 to 99 or 93 to 98 or 94 to 97 wt .-%, have.
- a drug combination is used which is substantially free of aglycone derivatives of rhaponticin and deoxyrhaponticin, in particular resveratrol and piceatannol.
- substantially free means an aglycone content of less than 5% by weight, in particular less than 2% by weight, for example less than 1% by weight or 0.1% by weight, such as 0 to 0, 05 wt .-%, each based on the total content of rhaponticin plus deoxyrhaponticin.
- the active substance combination used is a dry plant extract which has a high proportion of glycosides, in particular glycosides of the type described above.
- Glycosides are especially the glycosidic precursors of resveratrol and piceatannol described above. These are z, B in a proportion of 30 to 100 wt .-%, 50 to 100 wt .-%, but preferably in proportions of more than 76 wt .-%, such as 76 to 99 wt .-% or 80 to 98 Wt .-% or 85 to 96 wt .-%, each based on the total weight of the dry extract.
- Such drug combinations having a content of less than 0.5% by weight, e.g. 0 - 0.49 wt.% Or 0.001 to 0.3 or 0.01 to 0.2 or 0.01 to 0.1 wt .-% of anthraquinone and / or anthraquinones (in each case based on dry weight of the active ingredient combination).
- Anthrachinoids are to be understood in the broadest sense as substances with anthraquinone backbone.
- a "dry extract” within the meaning of the invention is in particular present when the residual moisture content, that is to say the residual proportion of water and / or organic liquid (such as extractant) is less than about 5% by weight, in particular less than 2% by weight.
- M / 45333-PCT Climacteric % such as 0 to 1.5 wt .-% or 0.1 to 0.5 wt .-%, each based on the total weight of the obtained dry extract, is.
- Nonlimiting examples of suitable solid dosage forms are those wherein the active ingredient combination consists essentially of about 60-66% by weight of rhaponticin 30-35% by weight of deoxyrhaponticin 0-2% by weight of rhapontigenin; 0-2 wt .-% deoxyrhapontigenin exists.
- Preferred solid dosage forms have a total drug content of about 2 to 20 mg per unit dose.
- Such solid dosage forms are the subject of the invention containing a sugar-free, especially mono- or disaccharide-free, e.g. Having lactose-free core.
- Suitable solid dosage forms may be in the form of a pill, tablet, extrudate or granules.
- Solid dosage forms in the form of a dragee, optionally with an enteric coating are particularly preferred.
- such coatings are free of plasticizers, such as phthalates, e.g. Diethyl phthalate.
- Coating compositions which are particularly suitable for producing enteric, plasticizer-free coatings are selected from known natural and synthetic coating agents (see, for example, Voigt, Pharmazeutician Technologie, 7th Edition 1993, Ullstein Mosby, Berlin).
- Particularly suitable coating agents include, but are not limited to, shellac and cellulosic derivatives such as hydroxypropylmethylcellulose derivatives, e.g. Hydroxypropyl methylcellulose acetate succinate, available under the tradename AQOAT.
- a solid dosage form having a total weight in the range of about 150 mg ⁇ 20 mg, a core weight of 84 mg ⁇ 10 mg and a drug content of about 3 to 10 mg should be mentioned.
- solid dosage forms are preferred, these having a uniformity of the active ingredient content (averaged over 10 or 20 randomly selected individual dosage units) not exceeding ⁇ 5% by weight, such as ⁇ 0.1 to 4 or + 0.5 to 3 or ⁇ 1 to 2 wt .-%, based on the total weight of the unit dose, have (eg determined according to Ph. Eur. 5th Edition 2005 (5.0 / 2.09.06.00)).
- the invention further provides a process for the preparation of a solid dosage form, comprising: a) mixing the active ingredient or combination of active ingredients with the pharmaceutically acceptable carrier; and b) solidifying the mixture to the drug core.
- the active ingredient or combination of active ingredients is dissolved or dispersed in an inert liquid and mixed with the carrier and the solvent removed during or after solidification.
- the active ingredient or combination of active substances used according to the invention is prepared by a) providing a drug-containing part of a drug plant, optionally in comminuted form, b) adding an aqueous extractant thereto, c) subjecting the extractant to a liquid extract phase the mixture is recovered and the extraction is optionally repeated several times, and d) the extractant is removed from the liquid extract phases thus obtained.
- an extraction with an aqueous extractant is carried out at a pH of the mixture in the alkaline range.
- the extracted drug plant is selected in particular from plants of the genus Rheum spp, Astragalus spp. Cassia spp or Picea spp.
- the total amount of the active substance or of the active ingredient combination is mixed in portions with the pharmaceutically acceptable carrier, such as Avicel or a comparable carrier based on cellulose, in particular microcrystalline cellulose, and repeats the mixing process after each carrier addition, but at least one or twice.
- the pharmaceutically acceptable carrier such as Avicel or a comparable carrier based on cellulose, in particular microcrystalline cellulose
- it is mixed with a ball mill over a period of 30 minutes to 3 hours, such as 1 to 2 hours.
- a ball mill for mixing as described in the examples. This gives a homogeneous and stable distribution of the active ingredient in the carrier.
- the active substance core is provided with an enteric-free, preferably plasticizer-free, coating.
- the core is coated with sugar.
- the invention also relates to liquid dosage forms containing an active ingredient or a combination of active substances as defined above in a proportion of about 0.1 to 20 mg / ml, such as. 0.5 to 15 or 1 to 10 or 2 to 5 mg / ml, in a solvent mixture comprising water and a pharmaceutically acceptable alcohol, in particular ethanol.
- the solvent mixture is a water / ethanol mixture having an ethanol content of 10 to 50 or 20 to 40 or 25 to 35% by volume, e.g. 30% by volume.
- These liquid dosage forms are especially formulated as drops for oral administration.
- the invention also provides semisolid dosage forms containing an active ingredient or a combination of active substances as defined above in a proportion of about 1 to 12, or 2 to 6 mg of active ingredient or combination of active ingredients (per gram of formulation) in a conventional semi-solid carrier.
- Suitable gelling carriers are well known and e.g. selected from swellable cellulose derivatives, such as hydroxypropylmethylcellulose, or polyacrylates, e.g. Carbopol, or gelatin.
- Such dosage forms may find application, for example, as vaginal gel or vaginal balls.
- the invention also provides an agent comprising a solid, semi-solid or liquid dosage forms as defined above.
- M / 45333-PCT Climacteric in particular pharmaceutical agents or drugs, such as homeopathics, as well as medicinal plant preparations.
- Another object of the invention relates to the use of a solid, semi-solid or liquid dosage form as defined above or prepared by any of the methods described above for the preparation of an agent as defined above for the treatment of menopausal symptoms of the woman, in particular for the treatment of menopausal symptoms in the pre - or postmenopause, as well as menopausal symptoms due to natural or therapeutically induced menopause.
- Climatic complaints include hot flushes, sweats, sleep disorders, irritability, physical and mental fatigue, sexual problems and urinary tract symptoms.
- the invention furthermore relates to a use for the treatment of juvenile oligomenorrhoea and dysmenorrhea, primary and secondary amenorrhea or endometritis.
- the invention is also the use in the context of long-term therapy, which can be indefinitely.
- the daily dose to be administered this may mg or in the range of 0.1 to 20 mg 0.5 to 15, 1 to 10 or 4 to 8 mg of active ingredient or active ingredient combination, such as for example, ERr 731 ®.
- Treatment according to the invention comprises both an acute and a preventive administration of agents according to the invention.
- the present invention also relates to the use of the above-described active compounds or active ingredient combinations, e.g. formulated in any of the dosage forms described above, for the selective activation of ER ⁇ , i. Activation of ER ⁇ without concomitant substantial or detectable activation of ER ⁇ in vivo or in vitro.
- the invention therefore also relates in particular to the use of an active substance or a combination of active substances as defined above (in particular ERr731 or similar rhaponticin and / or deoxyrhaponticin-containing combinations) for the treatment of one of the diseases defined above by selective activation of ER ⁇ , ie activation of ER ⁇ without concomitant substantial or detectable activation of ER ⁇ .
- an active substance or a combination of active substances as defined above in particular ERr731 or similar rhaponticin and / or deoxyrhaponticin-containing combinations
- the teaching of the invention is directed primarily to the preparation of solid, semi-solid or liquid dosage forms for the treatment of a human.
- the active compounds to be used according to the invention are usually administered in the form of pharmaceutical compositions comprising a pharmaceutically acceptable excipient with at least one active ingredient according to the invention and optionally further active ingredients. These compositions are especially administrable by the oral route.
- suitable pharmaceutical formulations are, in particular, solid pharmaceutical forms, such as granules, tablets, lozenges, sachets, cachets, dragees and capsules, such as hard and soft gelatin capsules, globules, suppositories or vaginal dosage forms, semi-solid dosage forms, such as ointments, creams, hydrogels, pastes or Plasters and liquid dosage forms, such as solutions, emulsions, in particular oil-in-water emulsions, suspensions, for example lotions, injections and infusion preparations, eye and ear drops, nose drops, nasal spray and tinctures. Implanted delivery devices may also be used to deliver inhibitors of the invention. Furthermore, liposomes, microspheres or polymer matrices can also be used.
- active ingredients of the invention are usually mixed or diluted with an excipient.
- Excipients may be solid or semi-solid materials which serve as a vehicle, carrier, adsorbent or medium for the active ingredient or drug combinations.
- Suitable excipients include, unless otherwise specified, lactose, dextrose, sucrose, sorbitol, mannitol, starches, gum acacia, calcium phosphate, alginates, tragacanth, gelatin, calcium silicate, microcrystalline cellulose, polyvinyl pyrrolidone, cellulose and methyl cellulose.
- the formulations may contain conventional pharmaceutically acceptable excipients such as lubricants, for example, tallow, magnesium stearate and mineral oil; Wetting agents; emulsifying and suspending
- M / 45333-PCT Climacteric Medium preservatives such as methyl and propyl hydroxybenzoates; antioxidants; Antiirritatives; chelating agents; coating aids; Emulsion stabilizers, film formers; gelling agents; Odor masking agents; masking flavors; resins; Hydrocolloids; Solvents; Solubilizing agents; Neutralizing agents; permeation; Pigments; quaternary ammonium compounds; Refatting and superfatting agents; Ointment, cream or oil bases; Silicone derivatives; spreading aids; stabilizers; Sterilanzien; Tablet excipients such as binders, fillers, lubricants, disintegrants or coatings; Propellant; Desiccant; Opacifiers; Thickener; waxes; plasticizers; include.
- preservatives such as methyl and propyl hydroxybenzoates; antioxidants; Antiirritatives; chelating agents; coating aids; Emulsion stabilizers, film former
- a related embodiment is based on expert knowledge, such as in Fiedler, HP, Lexicon of excipients for pharmacy, cosmetics and related fields, 4th edition, Aulendorf: ECV Editi Kantor Verlag, 1996, is shown. See also Hager's Handbook of Pharmaceutical Practice, Springer Verlag, Heidelberg.
- Solvents suitable for the preparation of formulations according to the invention are, in particular, monohydric or polyhydric alcohols, in particular ethanol, glycerol and mixtures thereof with water, such as e.g. 1 to 50% by volume of ethanol in water.
- compositions or pharmaceutical agents according to the invention are carried out using generally known methods of pharmaceutical technology, such as e.g. described in Voigt, Pharmaceutical Technology, 7th Edition 1993, Ullstein Mosby, Berlin.
- a pharmaceutical agent which comprises a solid dosage form.
- This solid dosage form comprises in turn a drug-containing solid core with a pharmaceutically acceptable carrier and an active ingredient content of about 1 to 20 wt .-%, based on the total weight of the core, wherein the active ingredient is a hydroxystilbene-containing active ingredient or a hydroxystilbene-containing active ingredient combination which is a compound selected from resveratrol and piceatannol prodrugs such as rhaponticin, deoxyrhaponticin, rhapontigenin, deoxyrhapontigenin and astringin; as well as resveratrol and piceatannol; and their stereoisomeric forms, in each case in the form of their salts or in the phenol form, or combinations of these compounds.
- Preferred drug combinations are as defined above.
- This solid dosage form has, for example, a total drug content of about 1 to 20 mg, such as. B. 2 to 10 mg, per unit dose and may be in the form of a pill, a tablet, an extrudate or granules and, for example, be coated. If desired, it may also have an enteric coating.
- the solid dosage form is e.g. prepared by mixing the active ingredient or combination of active ingredients with the pharmaceutically acceptable carrier and solidifying the mixture to the active ingredient core. This dissolves or disperses the active ingredient or drug combination in an inert liquid, mixes him / her with the carrier and removes the solvent during or after solidification. If appropriate, the drug core can then be provided with an enteric coating before the sugar is coated in the usual way.
- Liquid dosage forms according to the invention are prepared by, for example, by mixing the active ingredient or ingredients, such as a ERr-731 ® dry extract, in a suitable solvent such as.
- a suitable solvent such as.
- a water / alcohol mixture optionally together with other conventional additives dissolves.
- Inventive semi-solid dosage forms such as gels are produced for example by mixing the active ingredient or ingredients, such as a ERr 731 ® dry extract, in a suitable solvent such as a water / alcohol mixture, alcohol or glycerin dissolves and the solution in the already swollen gel former, if necessary, incorporated together with other common additives.
- a suitable solvent such as a water / alcohol mixture, alcohol or glycerin
- a suitable dose and a corresponding dosing schedule may be about 0.1 to 50 mg, e.g. 2 to 12 mg, drug or drug combination as defined above and administered 1 to 3 times daily until the desired treatment success is observed.
- Drug extracts which can be used according to the invention are preferably prepared by
- a) provides a hydroxystilbene-containing part of a drug plant, optionally in comminuted form, b) adding to it an aqueous, organic or aqueous-organic extractant, c) after the action of the extractant, extracting a liquid extract phase from the mixture and optionally repeated the extraction several times , and d) removing the extractant from the liquid extract phases thus obtained.
- the extract thus obtained comprises at least one compound selected from rhaponticin, deoxyrhaponticin, rhapontigenin, deoxyrhapontigenin in salt or in phenolic form, in a stereoisomeric form thereof, such as cis or trans form, or as a mixture of such stereoisomeric forms.
- the extracted hydroxystilbenes are substantially in the trans form.
- Salts are especially the alkali and alkaline earth phenolates of the above compounds which have one or more free phenolic hydroxyl groups. If there are several hydroxyl groups, these may be present partially or completely in the salt form.
- the resulting plant extracts or individual components thereof can also be subjected to derivatization reactions in order to obtain so-called functional derivatives.
- a combination of active ingredients is obtained from at least two of the above compounds, e.g. 2, 3, 4, 5, 6, 7 or 8 individual compounds, wherein the group of resveratrol precursors (especially deoxyrhaponticin and deoxyrhapontigenin) and the piceatannol precursors (especially rhaponticin and rhapontigenin) is represented by one compound each
- an extract which has a high proportion of glycosides, in particular glycosides of the type described above, such as, for example, a proportion of 30 to 100% by weight, 50 to 100% by weight, 60 to 99 wt .-% or 80 to 98 wt .-% or 85 to 96 wt .-%, each based on the total weight of the obtained dry extract.
- a "dry extract” in the sense of the invention is in particular present when the residual moisture content, ie the residual proportion of water and / or organic liquid (such as extraction agent) is less than about 5% by weight, in particular less than 2% by weight, such as 0 to 1, 5 wt .-% or 0.1 to 0.5 wt .-%, each based on the total weight of the obtained dry extract, is.
- an extract which is substantially free of aglycone derivatives of rhaponticin and deoxyrhaponticin, in particular resveratrol and piceatannol.
- substantially free means an aglycone content of less than 5% by weight, in particular less than 2% by weight, for example less than 1% by weight or 0.1% by weight, such as 0 to 0, 05 wt .-%, each based on the total content of rhaponticin and deoxyrhaponticin.
- active ingredient combinations are preferably prepared which have a total hydroxystilbene content of more than 90% by weight, such as 91 to 100 wt .-%, or 92 to 99 or 93 to 98 or 94 to 97 wt .-%, have.
- Such drug combinations are preferably prepared that have a content of less than 0.5 wt .-%, such as. 0 - 0.49 wt.% Or 0.001 to 0.3 or 0.01 to 0.2 or 0.01 to 0.1 wt .-% of anthraquinone and / or anthraquinones (in each case based on dry weight of the active ingredient combination).
- Anthrachinoids are to be understood in the broadest sense as substances with anthraquinone skeleton.
- the drug plant to be extracted is selected from natural plants as well as genetically modified plants modified by breeding or recombinant, plants which have a higher content of at least one of the desired ingredients compared to the corresponding unmodified plant.
- these plants are selected from plants of the genus Rheum spp., Astragalus spp., Cassia spp. or Picea spp. or active ingredient
- M / 45333-PCT Climacteric gene parts of plants are Rheum undulatum, Rheum palmatum, Rheum tataricum, Rheum officinale, Rheum wittrockii, Rheum altaicum, Rheum reticulatum, Astragalus complanatus, Cassia garrettiana and Picea sitchensis. Preference is also the use of varietal drug plants.
- the particular plant part or mixture of plant parts may, if appropriate, be mechanically treated prior to extraction, e.g. ground, chopped, shredded, tamped or cut. If appropriate, predrying, e.g. 2 hours to 2 days at 30 to 50 ° C to reduce the liquid content.
- the hydroxystilbene-containing part of the drug plant used for extraction is the root of the drug plant, such as e.g. of Rheum rhaponticum.
- the invention particularly relates to a process in which a hydroxystilbene-containing percolate is prepared from the drug.
- percolation is meant a continuous extraction of soluble substances from a drug by continuous renewal of the solvent, which results in a constant concentration gradient, so that a large part of all soluble substances passes into the extract.
- continuous or periodic mixing of the batch such as e.g. by stirring or shaking, possible.
- the temperature during the extraction according to the invention is usually in the range of 10 to 5O 0 C, such as 25 to 35 ° C.
- the pressure is usually at normal pressure. If an acceleration of the extraction rate or extract quality
- M / 45333-PCT Cliraacteric can be achieved, the pressure during the extraction can also be varied, such as increased or decreased.
- the extraction time may vary depending on the conditions chosen, such as the type of drug, batch size, extractant used and temperature, 1 hour to several days, e.g. Require 10 to 72 hours.
- the weight ratio of drug delivered to liquid extractant can vary over a wide range as well as from extraction step to extraction step. Typically, the weight ratio of drug to extractant ranges from 10: 1 to about 1: 200, or about 1: 2 to 1:50, or 1: 4 to 1:10.
- an extraction with an aqueous, substantially free of organic solvent extractant such as in particular water, preferably purified water, at a pH of the mixture in the alkaline range, wherein the pH of the mixture in particular in the range of about 11 to 12, such as is about 11, 3 to 11, 8.
- the pH of the mixture is determined, for example, by means of an inorganic base selected from alkali and alkaline earth metal hydroxides, e.g. Calcium hydroxide or calcium oxide.
- an inorganic base selected from alkali and alkaline earth metal hydroxides, e.g. Calcium hydroxide or calcium oxide.
- a concentrated quenching solution can be prepared by dissolving 3 to 8 parts of CaO in 20 parts of purified water. This solution is highly alkaline and has a pH in the range of about 12 to 13, e.g. from about 12.4 to 12.6, on.
- the ratio of drug delivered to base e.g. Calcium hydroxide (calculated as calcium oxide) may be in the range of about 5: 1 to 20: 1, such as 8: 1 to 12: 1 or 9: 1 to 11: 1.
- the process is carried out by precipitating the desired hydroxystilbene from the obtained alkaline liquid extract phase, for example by bringing the pH of the extract to a value in the range of about 3 to 4, such as
- M / 45333-PCT Climacteric For example, 3.2 to 3.8 or 3.4-3.6, and optionally then the precipitate separated, optionally washed and optionally dried.
- any inorganic or organic acid e.g. Hydrochloric acid or sulfuric acid, but especially organic acids such as formic acid or acetic acid.
- the washing of the precipitate may e.g. done with purified water and is used in particular for the removal of residual acid.
- 50 mg of extract are mixed with 40 ml of a mixture of acetone and water (1: 1) in a brown glass vessel, treated for 15 minutes in an ultrasound bath and made up to 50 ml with the solvent mixture and then diluted 1:10 with the solvent mixture.
- HPLC high pressure liquid chromatography
- Plasticizer B acetonitrile / dist. Water / phosphoric acid 85%
- Rhaponticin approx. 5,5 min
- Production Example 1 Preparation of the dry extract ERr 731 from rhapodrubber root with an aqueous calcium hydroxide solution
- the recoverable yield is between 2 and 3 kg per 50 kg of drug.
- the production takes place in the following steps:
- Rhaponticin is well soluble in aqueous solutions with an alkaline pH range, while it is precipitated in the acidic pH range (pH 3.4 - 3.6) as a yellowish substance. This is useful for its isolation. Since the root, in addition to other organic acids, above all has a high content of oxalic acid (2/3 in water-soluble and 1/3 in bound form), it must be neutralized during the isolation in order to prevent drifting of the pH into the acidic region and thus to prevent an early precipitation of Rhaponticins. This is achieved through the use of calcium oxide. This is used as slaked lime solution with a pH of 12.4 - 12.6.
- the pH of the mixture changes. It is then in the range of 11, 3 to 11, 8, which prevents precipitation of Rhaponticin, since the phenolic form has been converted into a phenolate form.
- the pH can be kept in the alkaline range. This is because the calcium hydroxide reacts with oxalic acid to form insoluble and non-toxic calcium oxalate.
- Rhaponticin remains as a yellowish substance on the filter.
- Rhapontikrhabarberwurzel used here as a drug, the mainly detectable ingredients belong to the group of hydroxystilbene.
- Rhaponticin (Rh) is found in the roots with a share of about 6% and desoxyrhaponticin (DRh) with a share of about 4%.
- the main ingredients rhaponticin and deoxyrhaponticin are contained in an approximately 97% proportion in the dry extract.
- Rhapontigenin and deoxyrhapontigenin together make up 1.1% of the extract, while stilbene, which is still unexplored, contains only 0.2%.
- Another 3 compounds are contained in a 2.5% proportion.
- Microcrystalline cellulose e.g., Avicel 57, 0 Tl ( ⁇ 40%)
- any ERr 731® contents of the crude core can be obtained (such as 2, 4, 6, 8, 10, 12 mg per tablet).
- 1, 2 Tl ERr 731® be proportionally triturated with Avicel ® in the ball mill, followed by the remaining excipients is mixed as described below, and tableted after addition.
- ERr 731® (1 g / l solvent) is dissolved in a suitable solvent (eg ethanol / water mixture 86% v / v ethanol) and mounted on Avicel ®, dried (at 4O 0 C for at least 48 hours) and after the addition of the remaining Adjuvants mixed and tableted as described below.
- a suitable solvent eg ethanol / water mixture 86% v / v ethanol
- the entire Avicel® amount is divided into three equal portions.
- the first portion is spiked with the total ERr731® and placed in a laboratory ball mill (e.g.
- the mixture of Avicel® and active ingredient is sieved through a screening machine (sieve diameter 1.2 mm) into a suitable mixing container and, after addition of the indicated tabletting aids (without magnesium stearate), in a suitable mixer (eg Rhönrad mixer type Standard RR M 200, Engelsmann AG / Ludwigshafen) mixed for at least 30 minutes. After adding magnesium stearate, mix again for at least 5 minutes.
- a suitable mixer eg Rhönrad mixer type Standard RR M 200, Engelsmann AG / Ludwigshafen
- the pressing is carried out on a suitable tablet press (for example rotary type Perfecta Fette 2000, Fa. Fette / Schwarzenbeck): Core weight: 84 mg ⁇ 4.2 mg maximum deviation punch: 7 mm diameter, drageegewölbt
- the ERr-731 content per core is approximately 4 mg ⁇ 5%.
- an enteric coating of cellulose acetate phthalate and diethyl phthalate, dissolved in isopropanol and ethyl acetate, is applied to the tablet cores by means of a coating system.
- Macrogol is dissolved in purified water.
- the constituents sugar sucrose or isomalt
- calcium carbonate talc
- titanium dioxide titanium dioxide
- the coating suspension is applied to the isolated cores using a panning machine. The process is repeated until an average weight of 150 mg per replenished core is reached. Finally, apply the polishing wax and then let it roll to a high gloss.
- Final weight of the enteric coated tablet 150 mg ⁇ 7.5 mg maximum deviation.
- the preparation is carried out analogously to Formulation Example 1, but using shellac (variant A) or acrylate (variant B) instead of celulose acetate phthalate / diethyl phthalate (plasticizer).
- the preparation is carried out analogously to Formulation Example 2, but using isomalt instead of sugar.
- glycerol ERR 731 ® Hydroxypropylmethylcellulose (Hypromellose USP) or another gelling agent is allowed to swell at 2-10% by weight in purified water. Subsequently, the dissolved in glycerol ERR 731 ® (Preparation Example 1) is incorporated. The amount of glycerol may be up to 50% by weight of the gel. ERr 731 ® can be dissolved in glycerol up to 0.5% by weight. If necessary, preservatives (eg, sorbic acid and its salts) may be added to the gel. Also a pH adjustment is possible. As an alternative to glycerol, ethanol 30-86% by volume can also be used.
- Carbomer (Carbopol) is dissolved in purified water at 0.5-5% by weight and the desired pH (eg KOH, NaOH 1 NH 3 ) is set. If necessary, a preservative (eg sorbic acid and its salts) is added. After formation of a clear gel ERr 731 ® (Preparation Example 1) up to 0.5 wt .-% in ethanol from 30 to 86 vol .-% dissolved and added. As an alternative to ethanol, glycerine can also be used.
- Variant B Same recipe, but with a suitable preservative such. Sorbate, benzoate, PHB esters.
- the gelatin is each introduced into purified water and allowed to swell until everything has become glassy. Subsequently, glycerol is added 85% with active ingredient and heated, but not above 65 0 C. Then the globules are poured in the usual way
- Test Example 1 In vivo metabolism of the dry extract ERr 731 ®
- ERr was 731 ® 3 male and 3 female dogs (kg pure-bred beagles, weight 6-9, age 6-8 months) ERr administered in a dose of 100 mg ® 731 / kg body weight orally per capsule.
- the animals were bled and blood plasma collected. Plasma was assayed for ERr 731 ® ingredients and metabolites.
- significant amounts of the metabolite piceatannol and small amounts of the metabolite resveratrol were detected in both males and females. Maximum plasma levels of these metabolites were reached after approximately 24 h. Plasma levels of piceatannol were significantly higher than those of resveratrol.
- the test results at 24 h are shown in FIG.
- Test Example 2 Study of the activation of the estrogen receptor by ERa ERr 731 ® and its ingredients or metabolites
- ERR 731 ® activates ERa. Therefore, the extract was ERr 731 ® studied and its ingredients or metabolites (trans-rhapontigenin, Removal soxyrhapontigenin, resveratrol, piceatannol and cis-rhapontigenin) in comparison with 17-beta estradiol on the estrogenic activity in established Modeilsystemen.
- Saccharomyces cerevisiae cells were stably transfected with human ER ⁇ and with a reporter gene consisting of the respective responsive promoter element fused to the LacZ gene which codes for ⁇ -galactosidase.
- estrogen treatment with estrogen or an estrogen-like acting substrate
- ß-galactosidase is activated, resulting in a red coloration of the yeast cells, which can be measured at 565 nm.
- Table 2 presents the concentrations for the positive control (17 ⁇ -oestradiol) and the test substances used in the assay.
- Test Example 3 Pharmacokinetics of ERr 731 ® ingredients in female subjects
- Rhaponticin was detected in the blood with a maximum at 3-4 hours ( Figure 4), while rhapontigenin could not be found. Since rhaponticin is one of the main ingredients of ERr 731 ® is assumed that rhaponticin is an activity ingredient of ERr 731 ®. This is all the more surprising, since it was previously assumed that only the aglycones, but not the glycosylated hydroxystilbenes are effective (Park et al., Arch Pharm Res. 2002; 25: 528-533).
- Test Example 4 Estrogen receptor beta (ERß) activation by ERr 731 ® and its metabolites in the ERß expressing endometrial adenocarcinoma HEC-1B
- HEC-1B cells a human endometrial adenocarcinoma cell line, express neither ERa nor ER ⁇ . Thus, they represent a possibility to investigate ligand-dependent effects of substances on the transactivation mechanisms with respect to different receptor subtypes and different estrogen-responsive promoters in a human and endometrial context.
- the cells were treated with appropriate concentrations of the substances or substance mixtures to be investigated.
- a positive control served 17ß-estradiol (E2, 10 nM)
- DMSO dimethyl sulfoxide
- the incubation period was 24 hours. Thereafter, the cells were lysed.
- the Luciferase Assay ® kit Promega
- the luciferase activity and on the other hand determined by the BGA ® kit (Sigma), the protein content.
- the resulting specific luciferase activities of the substances to be tested were then compared against the DMSO control (100%).
- ERr 731 ® The results for ERr 731 ® are shown in Figure 5a, for trans-rhapontigenin in Figure 5b and 5c for deoxyrhapontigenin in FIG. They show that the substances activate Dose-dependent ER ⁇ and thus can be used according to the invention.
- the direct pharmacological activity of the glycosides rhaponticin and deoxyrhaponticin could be demonstrated for the first time.
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Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2006210119A AU2006210119B2 (en) | 2005-02-04 | 2006-02-03 | Dosage forms of active ingredients containing hydroxystilbene for treating menopausal complaints |
| EP06706622A EP1843745A1 (de) | 2005-02-04 | 2006-02-03 | Dosierungsformen hydroxystilben-haltiger wirkstoffe zur behandlung klimakterischer beschwerden |
| CA2596189A CA2596189C (en) | 2005-02-04 | 2006-02-03 | Dosage forms of active ingredients containing hydroxystilbene for treating menopausal complaints |
| US11/883,667 US8168220B2 (en) | 2005-02-04 | 2006-02-03 | Dosage forms of active ingredients containing hydroxystilbene for treating menopausal complaints |
| US13/445,087 US20120195942A1 (en) | 2005-02-04 | 2012-04-12 | Dosage forms of active ingredients containing hydroxystilbene for treating menopausal complaints |
| US13/949,805 US20140099368A1 (en) | 2005-02-04 | 2013-07-24 | Dosage forms of active ingredients containing hydroxystilbene for treating menopausal complaints |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005005271 | 2005-02-04 | ||
| DE102005005271.1 | 2005-02-04 | ||
| DE102005005268 | 2005-02-04 | ||
| DE102005005268.1 | 2005-02-04 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/883,667 A-371-Of-International US8168220B2 (en) | 2005-02-04 | 2006-02-03 | Dosage forms of active ingredients containing hydroxystilbene for treating menopausal complaints |
| US13/445,087 Continuation US20120195942A1 (en) | 2005-02-04 | 2012-04-12 | Dosage forms of active ingredients containing hydroxystilbene for treating menopausal complaints |
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| Publication Number | Publication Date |
|---|---|
| WO2006082073A1 true WO2006082073A1 (de) | 2006-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2006/000957 Ceased WO2006082073A1 (de) | 2005-02-04 | 2006-02-03 | Dosierungsformen hydroxystilben-haltiger wirkstoffe zur behandlung klimakterischer beschwerden |
| PCT/EP2006/000955 Ceased WO2006082071A1 (de) | 2005-02-04 | 2006-02-03 | Verfahren zur herstellung eines hydroxystilben-haltigen drogenextraktes |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/EP2006/000955 Ceased WO2006082071A1 (de) | 2005-02-04 | 2006-02-03 | Verfahren zur herstellung eines hydroxystilben-haltigen drogenextraktes |
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| Country | Link |
|---|---|
| US (4) | US9125857B2 (de) |
| EP (2) | EP1843745A1 (de) |
| AT (1) | ATE492271T1 (de) |
| AU (2) | AU2006210119B2 (de) |
| CA (2) | CA2596178C (de) |
| DE (1) | DE502006008551D1 (de) |
| PL (1) | PL1845957T3 (de) |
| RU (3) | RU2007132963A (de) |
| WO (2) | WO2006082073A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102908410A (zh) * | 2012-11-20 | 2013-02-06 | 青海伊纳维康生物科技有限公司 | 一种治疗骨质疏松症和更年期综合症的大黄提取物 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2520183B1 (de) | 2005-02-04 | 2017-07-05 | Peter Heger | Verwendung einer hydroxystilben-haltigen Wirkstoffkombination zur Behandlung von Depressionen und Angstzuständen |
| US9125857B2 (en) * | 2005-02-04 | 2015-09-08 | Peter Heger | Method for producing a drug extract that contains hydroxystilbene |
| DE502008002255D1 (de) * | 2007-03-23 | 2011-02-24 | Navalis Nutraceuticals Gmbh | Arzneimittel enthaltend Fraumenmantel zur Behandlung von Endometritis, Vaginitis |
| FR2922768B1 (fr) * | 2007-10-25 | 2010-01-22 | Vetoquinol Sa | Procede pour masquer l'amertume d'un extrait sec vegetal de rhubarbe |
| EP2085077A1 (de) * | 2008-01-30 | 2009-08-05 | Südzucker Aktiengesellschaft Mannheim/Ochsenfurt | Beschichtungszusammensetzung für Formulierungen mit kontrollierter Freisetzung |
| CN102220387B (zh) * | 2011-04-12 | 2013-02-06 | 安康中科麦迪森天然药业有限公司 | 一种从新鲜虎杖中提取纯化白藜芦醇和大黄素的方法 |
| CN102659861B (zh) * | 2012-04-18 | 2015-06-17 | 昆药集团股份有限公司 | 一种曲札茋苷的纯化方法 |
| CN102702283B (zh) * | 2012-05-08 | 2014-08-13 | 青海伊纳维康生物科技有限公司 | 一种快速分离制备高纯度脱氧土大黄苷和土大黄苷的方法 |
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| CN102908410A (zh) * | 2012-11-20 | 2013-02-06 | 青海伊纳维康生物科技有限公司 | 一种治疗骨质疏松症和更年期综合症的大黄提取物 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20120195942A1 (en) | 2012-08-02 |
| US20090048184A1 (en) | 2009-02-19 |
| US9125857B2 (en) | 2015-09-08 |
| AU2006210117A1 (en) | 2006-08-10 |
| WO2006082071A1 (de) | 2006-08-10 |
| CA2596178A1 (en) | 2006-08-10 |
| EP1845957A1 (de) | 2007-10-24 |
| US20140099368A1 (en) | 2014-04-10 |
| EP1845957B1 (de) | 2010-12-22 |
| EP1843745A1 (de) | 2007-10-17 |
| AU2006210117B2 (en) | 2011-07-21 |
| CA2596189A1 (en) | 2006-08-10 |
| RU2007132964A (ru) | 2009-03-10 |
| AU2006210119B2 (en) | 2011-09-22 |
| CA2596178C (en) | 2013-10-08 |
| US20080248069A1 (en) | 2008-10-09 |
| AU2006210119A1 (en) | 2006-08-10 |
| ATE492271T1 (de) | 2011-01-15 |
| CA2596189C (en) | 2014-12-16 |
| RU2007132963A (ru) | 2009-03-10 |
| DE502006008551D1 (de) | 2011-02-03 |
| PL1845957T3 (pl) | 2011-07-29 |
| US8168220B2 (en) | 2012-05-01 |
| RU2007132962A (ru) | 2009-03-10 |
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