Methods for the treatment of lada and other adult-onset...

A - Human Necessities – 61 – K

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A61K 39/395 (2006.01) A61P 3/10 (2006.01) G01N 33/564 (2006.01)

Patent

CA 2673470

The present invention provides methods of treating, preventing or ameliorating the symptoms of Latent Autoimmune Diabetes in Adults (LADA) and adult-onset type 1 diabetes through the use of anti-human CD3 antibodies. In particular, in invention provides methods of preventing or delaying insulin requirement in patients diagnosed with LADA. The methods of the invention provide for administration of antibodies that specifically bind the epsilon subunit within the human CD3 complex. Such antibodies modulate the T cell receptor/alloantigen interaction and, thus, regulate the T cell mediated cytotoxicity associated with autoimmune disorders. Additionally, the invention provides for modification of the anti-human CD3 antibodies such that they exhibit reduced or eliminated effector function and T cell activation as compared to non-modified anti-human CD3 antibodies.

La présente invention concerne des procédés de traitement, de prévention ou d'amélioration des symptômes du diabète auto-immun latent de l'adulte (LADA) et du diabète de type 1 de l'adulte grâce à l'utilisation d'anticorps CD3 anti-humains. L'invention concerne notamment des procédés consistant à prévenir ou à retarder le besoin en insuline chez des patients chez qui on diagnostique un LADA. Les procédés de l'invention concernent l'administration d'anticorps qui se lient spécifiquement à la sous unité epsilon dans le complexe CD3 humain. Ces anticorps modulent l'interaction entre le récepteur de lymphocytes T/allo-antigène et ainsi, régulent la cytotoxicité véhiculée par les lymphocytes T associée à des troubles auto-immuns. De plus, l'invention concerne la modification des anticorps CD3 anti-humains de sorte qu'ils présentent une fonction d'effecteur et d'activation des lymphocytes T réduite ou éliminée en comparaison avec des anticorps CD3 anti-humains non modifiés.

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