Zoetis. has filed a patent related to canine antibody variants, focusing on mutations in the constant region to enhance characteristics like half-life. The claim mentions the cancellation of claims 1-82. GlobalData’s report on Zoetis gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on Zoetis, Personalized cancer vaccines was a key innovation area identified from patents. Zoetis's grant share as of January 2024 was 54%. Grant share is based on the ratio of number of grants to total number of patents.
Improving canine antibody half-life and characteristics
A recent patent application (Publication Number: US20240010716A1) discloses a modified IgG molecule designed for increased efficacy in canines. The modified IgG includes a canine IgG constant domain with specific amino acid substitutions, notably at position 434 where asparagine is replaced with histidine (N434H). This modified IgG is specifically tailored as an anti-TGFß molecule, with defined variable heavy and light chain sequences. The patent claims that this modified IgG exhibits higher affinity for FcRn and a longer half-life compared to wild-type canine IgG constant domain IgG molecules.
Furthermore, the patent application includes claims for a pharmaceutical composition containing the modified IgG, a kit with the modified IgG and instructions for use, a fusion molecule incorporating the modified IgG, and a method for increasing the serum half-life of canine IgG in dogs through the administration of the modified IgG. The method involves administering the modified IgG with specific amino acid substitutions, along with the anti-TGFß molecule components. The patent emphasizes the importance of the specific amino acid substitutions in enhancing the serum half-life of the canine IgG molecule, potentially leading to improved therapeutic outcomes in canines.
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