Seattle Genetics, Bayer in ADC collaboration

Wednesday, June 26, 2013 03:13 PM

Biotech Seattle Genetics has entered into an antibody-drug conjugate (ADC) collaboration with Bayer HealthCare. Bayer will pay upfront and option exercise fees of up to $20 million for worldwide rights to utilize Seattle Genetics' auristatin-based ADC technology with antibodies to several oncology targets. Seattle Genetics also is eligible to receive up to $500 million in potential milestone payments, as well as royalties on worldwide net sales of any resulting products under the multi-target collaboration. Bayer is responsible for research, product development, manufacturing and commercialization of all products. 

"Antibody-drug conjugates are promising approaches in oncology which can attack tumor cells in a much more targeted way for cancer patients, such that healthy cells are less severely affected,” said Andreas Busch, member of Bayer HealthCare executive committee and head of global drug discovery.

ADCs are monoclonal antibodies that are designed to selectively deliver cytotoxic agents to tumor cells. Seattle Genetics has developed proprietary technology employing synthetic cytotoxic agents and stable linker systems that attach these cytotoxic agents to the antibody. Seattle Genetics' linker systems are designed to be stable in the bloodstream and release the potent cell-killing agent once inside targeted cancer cells. This approach is intended to spare non-targeted cells and thus reduce many of the toxic effects of traditional chemotherapy while enhancing antitumor activity.

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