Multivalent meningococcal derivatized polysaccharide-protein...

A - Human Necessities – 61 – K

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A61K 39/385 (2006.01) A61K 39/00 (2006.01) A61K 39/02 (2006.01) A61K 39/095 (2006.01) A61K 39/116 (2006.01) C07H 1/00 (2006.01)

Patent

CA 2580693

The present invention describes derivatized polysaccharide-protein conjugates, a composition comprising one or more of such derivatized polysaccharide- protein conjugates and methods of immunizing human patients with the same. The derivatized polysaccharide~ protein conjugates are purified capsular polysaccharides from Neisseria meningitidis serogroups A, C, W- 135, and Y, derivatized chemically activated and selectively attached to a carrier protein by means of a covalent chemical bond, forming polysaccharide-protein conjugates capable of eliciting long-lasting immunity to a variety of N. meningitidis strains.

La présente invention a trait à des conjugués polysaccharide/protéine dérivatisés, à une composition comportant un ou plusieurs desdits conjugués polysaccharide/protéine dérivatisés et à des procédés d'immunisation de patients humains à l'aide desdits conjugués. Les conjugués polysaccharide/protéine dérivatisés sont des polysaccharides capsulaires purifiés dérivés de sérogroupes A, C, W- 135, et Y de Neisseria meningitidis dérivatisés, chimiquement activés et liés de manière sélective à une protéine porteuse à l'aide d'une liaison chimique covalente, la formation de conjugués polysaccharide/protéine capables de déclencher une immunité de longue durée à diverses souches de N. meningitidis.

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