Multispecific Antibodies and Antibody Drug Conjugates for Hard-to-Treat Cancers and Autoimmune Diseases with Dr. Paul Moore Zymeworks TRANSCRIPT

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Dr. Paul Moore, Chief Scientific Officer at Zymeworks, focuses on developing targeted therapies, particularly multispecific antibodies and antibody-drug conjugates for hard-to-treat cancers such as gynecological, thoracic, and digestive tract cancers. This approach can target multiple areas on tumor cells and immune cells, potentially overcoming tumor heterogeneity and allowing for immune system modulation. The platform allows for a plug-and-play approach, enabling the development of therapies for oncology and autoimmune diseases.

Paul explains, "So, multispecific antibodies are antibodies. Antibodies traditionally have a single target that they bind, so they're monoclonal and hit a specific target. A lot of excitement is generated for bispecific antibodies, which are engineered to bind two targets. Then with multispecifics, you are trying to broaden even further the number of targets or binding sites you've incorporated into your drug so that you can simultaneously interact with more than one target. The reason that can be important is that allows and facilitates new biology that is not possible for just a monoclonal antibody or a single antibody-targeting drug conjugate."

"Multispecifics open up the opportunity to take two targets that are on different cells, different cell populations. So, you can have a target on a tumor cell you're trying to target. Then you can have a target on an immune cell like a T cell, which you can co-engage. You can bridge a T cell to a binding domain that's on a multispecific with your second specificity, which can bind to the cell. And what that allows you to do is bring the T cell into the environment of the tumor cell, and through that engagement, the T cell can kill the tumor cell. So that is the foundation of a lot of excitement in bispecifics."

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