Influenza vaccine with reduced amount of oil-in-water...

A - Human Necessities – 61 – K

Patent

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A61K 39/39 (2006.01) A61K 39/145 (2006.01)

Patent

CA 2628206

Influenza vaccines with oil-in-water emulsion adjuvants are known. The amount of emulsion adjuvant required for an influenza vaccine can be reduced, thereby allowing more vaccines to be made from a given amount of emulsion, and/or minimizing the amount of emulsion that has to be produced for a given number of vaccine doses. These vaccines can conveniently be made by mixing (i) an oil- in-water emulsion and (ii) an aqueous preparation of an influenza virus antigen. In one aspect, substantially equal volumes of components (i) and (ii) are used; in another aspect, an excess volume of component (ii) is used. When using substantially equal volumes, component (ii) has a hemagglutinin concentration of more than 60µg per influenza virus strain per ml. Components (i) and (ii) can be presented in kit form.

L'invention concerne des vaccins antigrippaux comprenant des adjuvants de type émulsion huile-dans-eau. Le taux d'adjuvants de type émulsion requis pour un vaccin antigrippal peut être réduit de façon qu'il soit possible de fabriquer un plus grand nombre de vaccins à partir d'une quantité donnée d'émulsions et/ou de minimiser le taux d'émulsion qui doit être produit pour un certain nombre de doses de vaccin. Ces vaccins peuvent être avantageusement obtenus par le mélange (i) d'une émulsion huile-dans-eau et (ii) d'une préparation aqueuse d'un antigène de virus grippal. Dans un aspect, des volumes sensiblement égaux de composants (i) et (ii) sont utilisés; dans un autre aspect, un volume excédentaire de composant (ii) est utilisé. Lorsque des volumes sensiblement égaux sont utilisés, le composant (ii) présente une concentration d'hémagglutinine de plus de 60µg par souche de virus grippal par ml. Les composants (i) et (ii) peuvent se présenter sous la forme d'une trousse.

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