Methods for treatment of inflammatory diseases

A - Human Necessities – 61 – K

Patent

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Details

A61K 31/415 (2006.01) A01N 43/50 (2006.01) A61K 8/06 (2006.01) A61K 8/37 (2006.01) A61K 8/46 (2006.01) A61K 8/49 (2006.01) A61K 8/73 (2006.01) A61K 8/81 (2006.01) A61K 8/86 (2006.01) A61K 8/92 (2006.01) A61K 47/20 (2006.01) A61K 47/44 (2006.01) A61Q 19/00 (2006.01)

Patent

CA 2408163

An improved method of treating skin diseases comprises applying to the skin of a patient suffering such a skin disease an allantoin-containing composition in a therapeutically effective quantity. The allantoin-containing composition is a water-in-oil emulsion that includes allantoin and an emulsifier system that includes at least one emulsifier that is either an anionic emulsifier or a nonionic emulsifier. If the emulsifier is an anionic emulsifier, the emulsifier system can include beeswax. The nonionic emulsifiers used can include at least one nonionic emulsifier that is an ethoxylated ether or an ethoxylated ester whose carbon chain length ranges from 8 to 22 carbon atoms. Alternatively, the emulsifier system can include an acidic anionic polymer such as carboxypolymethylene and an anionic emulsifier. In another alternative, the emulsifier system can include the acidic anionic polymer and a nonionic emulsifier, or the acidic anionic polymer alone. In still another alternative, the emulsifier system can include cetyl alcohol and stearic acid. In yet another alternative, the emulsifier system can include sodium stearoyl lactylate and sodium isostearoyl lactylate. In another alternative, the emulsifier system can include at least one polyethyleneglycol ether of cetearyl alcohol. In still another alternative, the emulsifier system can include a polyethylene glycol ester of stearic acid and glyceryl stearate. The composition can include other ingredients. The pH of the composition used in a method according to the present invention is from about 3.0 to about 6.0; preferably, a narrower pH range is used, varying with each embodiment of the composition. Among the diseases that can be treated is epidermolysis bullosa.

L'invention concerne une méthode de traitement améliorée de maladies de la peau, qui consiste à appliquer sur la peau d'un patient une composition contenant de l'allantoïne en quantités thérapeutiquement efficaces. La composition à teneur en allantoïne est une émulsion eau dans huile qui contient de l'allantoïne et un système émulsifiant comprenant au moins un émulsifiant soit anionique soit non ionique. Si l'émulsifiant est anionique, le système peut contenir de la cire d'abeilles. Les émulsifiants non ioniques utilisés peuvent contenir au moins un émulsifiant non ionique qui soit un éther éthoxylé ou un ester éthoxylé dont la longueur de la chaine de carbone est comprise entre 8 et 22 atomes de carbone. Le système émulsifiant peut éventuellement contenir un polymère anionique acide, tel que le carboxypolyméthylène et un émulsifiant anionique. Dans un mode de réalisation, le système émulsifiant peut comprendre un polymère anionique acide et un émulsifiant non ionique, ou seul le polymère anionique acide. Le système émulsifiant peut comprendre de l'alcool cétyle et de l'acide stéarique, ou du stéaroyl-lactylate de sodium et du isostéaroyl-lactylate de sodium, ou encore un éther polyéthylèneglycol d'alcool cétéaryle. Le système émulsifiant peut, par ailleurs, contenir un ester de polyéthylène glycol d'acide stéarique et du stéarate de glycéryle. La composition peut comprendre d'autres ingrédients. Le pH de la composition se situe entre 3 et 6 environ, une gamme de pH inférieure est de préférence utilisée, selon chaque mode de réalisation particulier. Parmi les maladies pouvant être traitées, figure l'épidermolyse bulleuse.

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