Vaccine compositions for the treatment of dengue fever and...

A - Human Necessities – 61 – K

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Details

A61K 39/12 (2006.01) A61K 39/39 (2006.01) A61K 47/48 (2006.01) C07K 14/18 (2006.01) C12N 7/04 (2006.01)

Patent

CA 2721657

The invention provides compositions, vaccine compositions and pharmaceutical compositions for the treatment, amelioration and / or prevention of dengue fever. The compositions, vaccine compositions and pharmaceutical compositions of the invention comprise a virus-like particle of an RNA bacteriophage and at least one antigen, wherein said at least one antigen is a dengue antigen. When administered to an animal, preferably to a human, said compositions, vaccine compositions and pharmaceutical compositions induce efficient immune responses, in particular antibody responses, wherein typically and preferably said antibody responses are directed against dengue virus, preferably against dengue virus of any one of serotypes 1 to 4. Thus, the invention further provides methods of treating, ameliorating and/or preventing dengue virus infection by way of active immunization against domain III of the dengue virus envelope protein E, or against antigenic fragments thereof.

L'invention porte sur des compositions, des compositions de vaccin et des compositions pharmaceutiques pour le traitement, l'amélioration et/ou la prévention de la dengue. Les compositions, compositions de vaccin et compositions pharmaceutiques de l'invention comprennent des particules de type virus d'un bactériophage à ARN et au moins un antigène, ledit ou lesdits antigènes étant un antigène de la dengue. Lorsqu'elles sont administrées à un animal, de préférence à un être humain, lesdites compositions, compositions de vaccin et compositions pharmaceutiques induisent des réponses immunitaires efficaces, en particulier des réponses d'anticorps, ces réponses étant typiquement et de préférence dirigées contre le virus de la dengue, de préférence contre le virus de la dengue de l'un quelconque des sérotypes 1 à 4. Ainsi, l'invention porte en outre sur des procédés de traitement, d'amélioration et/ou de prévention d'une infection par le virus de la dengue au moyen d'une immunisation active contre le domaine III de la protéine E de l'enveloppe du virus de la dengue, ou contre des fragments antigéniques de celle-ci.

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