Pharmaceutical composition utilising combinations of...

A - Human Necessities – 61 – K

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Details

A61K 47/48 (2006.01) A61K 38/09 (2006.01) A61K 39/00 (2006.01) A61P 15/00 (2006.01) A61P 35/00 (2006.01) A61P 43/00 (2006.01)

Patent

CA 2738993

A pharmaceutical composition using natural gonadotropin - releasing hormone (GnRH), and/or some of its mimetic peptides, indistinctly bound by its amino or carboxyl extremes to a carrier molecule; in one case by its carboxyl extreme and in the other case by the amino terminal extreme, thus eliciting a faster and more potent immunological response against the endogenous GnRH hormone. This finally leads to the ablation of the GnRH and consequently of the rest of the involved hormones in the stream GnRH/LH-FSH/Testosterone-(estrogens). An advantage of this formulation consists on facilitating the exposition to the immune system of a greater number of epitopes of the GnRH or its mimetics, minimizing thus the steric hindrance produced by the carriers. This invention has a direct application in the castration of pets and animals of economic interest, in the control of human fertility as well as in the treatment of hormone-sensitive tumors, such as that of the prostate, the breast, ovary, the endometry, testicles, hypophysis, salivary glands and other kinds of human tumors.

L'invention concerne une composition pharmaceutique utilisant des combinaisons de l'hormone GnRH native et/ou un de ses mimétiques, liés indistinctement par leurs extrémités amino ou carboxyle à une molécule porteuse, dans un cas, par leur extrémité carboxyle et dans l'autre, par leur terminaison amino, générant une réponse immunologique rapide et puissante contre l'hormone GnRH endogène qui conduit finalement à l'ablation de la GnRH et par conséquent du reste des hormones impliquées dans la cascade GnRH/LH-FSH/Testostérone-(oestrogènes) et facilitant l'exposition au système immunitaire d'un plus grand nombre d'épitopes de la GnRH ou de ses mimétiques et réduisant au minimum l'empêchement stérique que produisent les molécules porteuses. L'invention trouve une application directe dans la castration d'animaux présentant un intérêt économique et d'animaux de compagnie, dans le contrôle de la fertilité chez les êtres humains, et dans le traitement de tumeurs hormono-sensibles, de la prostate, du sein, des ovaires, de l'endomètre, des testicules, de l'hypophyse, des glandes salivaires et d'autres types de tumeurs humaines.

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