Wilex Ag

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Stefan Ullrich

Olaf G Wilhelm

Egbert Oosterwijk

This invention relates to a hybridoma cell line which is capable of producing the monoclonal antibody G250. Furthermore, the invention describes the method of employing such cell line for the production and manufacture of monoclonal antibody G250 as well as derivatives thereof such as chimeric and humanized G250 antibodies.

Hybridoma cell line G250 and its use for producing monoclonal antibodies

A method for enhancing the therapeutic effect of cytokine treatment is disclosed. More specifically the present invention relates to a method for administering to a tumor patient a therapeutic dose of cytokine in combination with antibodies directed against the tumor associated antigen carbonic anhydrase IX (CAIX/G250/MN). The improved treatment method is characterized in a significantly reduced cytokine-related toxicity combined with potentiated effectiveness of anti-G250 antibody alone, resulting in a positive therapeutic response with respect to that observed with single anti-tumor agents alone.

Co-administration of CG250 and IL-2 or IFN-alpha for treating cancer such as renal cell carcinomas

The invention relates to a method for the treatment of G250-antigen-expressing tumors, in particular renal clear cell carcinoma comprising the administration of G250-antigen-specific antibodies to high-risk patients diagnosed with non-metastasizing disease.

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Leiden, Netherlands

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