Use of 2-methylene-19-nor-20(s)-1.alpha.,25-dihydroxyvitamin...

A - Human Necessities – 61 – K

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A61K 31/59 (2006.01)

Patent

CA 2416194

This invention provides pharmaceutical uses for 2-methylene-19-nor-20(S)- 1.alpha.,25-dihydroxyvitamin D3. This compound is characterized by high bone calcium mobilization activity demonstrating preferential activity on bone. This results in a novel therapeutic agent for the treatment of diseases where bone formation is desired, particularly osteoporosis. This compound also exhibits pronounced activity in arresting the proliferation of undifferentiated cells and inducing their differentiation to the monocyte thus evidencing use as an anticancer agent and for the treatment of skin diseases such as psoriasis. This compound also increases both breaking strength and crushing strength of bones eveidencing use in conjunction with boen replacement surgery such as hip and knee replacements.

La présente invention concerne des utilisations pharmaceutiques de 2-méthylène-19-nor-20(S)-1.alpha.,25-dihydroxyvitamine D¿3?. Ce composé est caractérisé par une haute activité de mobilisation du calcium osseux présentant une activité préférentielle pour les os. Il en résulte un nouvel agent thérapeutique destiné au traitement de maladies pour lesquelles on souhaite une formation osseuse, en particulier celui de l'ostéoporose. Ce composé présente aussi une activité prononcée qui arrête la prolifération des cellules indifférenciées et qui induit leur différenciation dans le monocyte, ce qui justifie une utilisation sous forme d'agent anticancéreux ou une utilisation destinée au traitement de maladies de peau telles que le psoriasis. Ce composé augmente aussi la résistance à la fracture des os et la résistance à l'émiettement des os, ce qui justifie son utilisation associée à la chirurgie de remplacement d'un os tel que le remplacement d'un genou ou d'une hanche

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