Pharmaceutical compositions comprising bispecific anti-cd3,...

A - Human Necessities – 61 – K

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A61K 48/00 (2006.01) A61K 39/395 (2006.01) A61P 19/02 (2006.01) A61P 31/00 (2006.01) A61P 33/00 (2006.01) A61P 35/00 (2006.01) A61P 35/02 (2006.01) A61P 37/02 (2006.01) C07K 16/28 (2006.01) C12N 15/13 (2006.01)

Patent

CA 2522586

The present invention relates to a pharmaceutical composition comprising a bispecific single chain antibody construct, said bispecific single chain antibody construct comprising binding domains specific for human CD3 and human CD19, wherein the corresponding variable heavy chain regions (VH) and the corresponding variable light chain regions (VL) regions are arranged, from N- terminus to C-terminus, in the order, VH(CD19)-VL(CD19)-VH(CD3)-VL(CD3), VH(CD3)-VL-(CD3)-~VH(CD19)-VL(CD19) or VH(CD3)-VL(CD3)-VL(CD19)-VH(CD19). Furthermore, processes for the production of said pharmaceutical compositions as well as medical/pharmaceutical uses for the specific bispecific single chain antibody molecules bearing specificities for the human CD3 antigen and the human CD19 antigen are disclosed.

L'invention concerne une composition pharmaceutique comprenant une construction d'anticorps à chaîne simple bispécifique, laquelle comprend à son tour des domaines de liaison spécifiques des CD3 humains et des CD19 humains. Les régions des chaînes lourdes variables correspondantes (V<SB>H</SB>) et les régions des chaînes légères variables correspondantes (V<SB>L</SB>) sont arrangées, du terminus N au terminus C, dans l'ordre suivant : V<SB>H</SB>(CD19)-V<SB>L</SB>(CD19)-V<SB>H</SB>(CD3)-V<SB>L</SB>(CD3), V<SB>H</SB>(CD3)-V<SB>L</SB>-(CD3)--V<SB>H</SB>(CD19)-V<SB>L</SB>(CD19) or V<SB>H</SB>(CD3)-V<SB>L</SB>(CD3)-V<SB>L</SB>(CD19)-V<SB>H</SB>(CD19). L'invention concerne également des procédés de production desdites compositions pharmaceutiques ainsi que les utilisations médicale et pharmaceutique de molécules d'anticorps à chaîne simple bispécifique spécifique présentant des spécificités par rapport à l'antigène associé aux CD3 humains et par rapport à l'antigène associé aux CD19 humains.

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