Vaccine and antitoxin for treatment and prevention of c....

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 14/33 (2006.01) A61K 9/28 (2006.01) A61K 38/00 (2006.01) A61K 39/08 (2006.01) A61K 39/395 (2006.01) A61K 39/40 (2006.01) A61K 47/10 (2006.01) A61P 31/04 (2006.01) C07K 1/16 (2006.01) C07K 1/22 (2006.01) C07K 14/245 (2006.01) C07K 14/38 (2006.01) C07K 16/00 (2006.01) C07K 16/02 (2006.01) C07K 16/12 (2006.01) C07K 19/00 (2006.01) C12N 1/20 (2006.01) C12N 1/21 (2006.01) C12N 15/00 (2006.01) C12N 15/09 (2006.01) C12N 15/13 (2006.01) C12P 21/08 (2006.01) G01N 33/53 (2006.01) G01N 33/543 (2006.01) G01N 33/54

Patent

CA 2203504

The present invention provides neutralizing antitoxin directed against C. difficile toxins. These antitoxins are produced in avian species using soluble recombinant C. difficile toxin proteins. The avian antitoxins are designed so as to be orally administrable in therapeutic amounts and may be in any form (i.e., as a solid or in aqueous solution). Solid forms of the antitoxin may comprise an enteric coating. These antitoxins are useful in the treatment of humans and other animals intoxicated with at least one bacterial toxin. The invention further provides vaccines capable of protecting a vaccinated recipient from the morbidity and mortality associated with C. difficile infection. These vaccines are useful for administration to humans and other animals at risk of exposure to C. difficile toxins.

La présente invention concerne une anti-toxine neutralisante dirigée contre les toxines C. difficile. Ces anti-toxines sont produites chez les espèces aviaires à l'aide de protéines recombinées de toxines C. difficile. Ces anti-toxines aviaires sont destinées à être administrées par voie orale en doses thérapeutiques et peuvent se présenter sous n'importe quelle forme (c'est-à-dire sous forme de solide ou de solution aqueuse). Des formes solides de l'anti-toxine peuvent comporter un revêtement gastro-résistant. Ces anti-toxines sont utiles pour traiter chez l'homme et l'animal les intoxications avec au moins une toxine bactérienne. L'invention concerne également des vaccins susceptibles de protéger un receveur vacciné contre la morbidité et la mortalité associées à l'infection par C. difficile. Ces vaccins s'administrent , chez l'homme et l'animal, à des sujets susceptibles d'être exposés à des toxines C. difficile.

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