Episode: 85 - Daniel Chen on Building Multi-Target Drugs with Logic Gating

May 12, 2026 | When it comes to drug discovery, either you find a rare, clean target and everything clicks, or you spend a decade chasing biology that refuses to cooperate. Daniel Chen, M.D., Ph.D., founder and CEO of Synthetic Design Lab, makes the case for a different playbook: objective-driven protein engineering, where we start with the outcome and design biologics that can execute it with built-in logic. With host Andrew Bradbury, Chen unpacks the SYNTHBODY platform and what “multi-tier logic gating” means in real drug design. They dive into logic-gated antibody drug conjugates, where target summation can boost binding, internalization, trafficking, and payload delivery and where an additional AND gate can trigger multiplier functions that go beyond cytotoxic payloads. Links from this episode:  Specifica Synthetic Design Lab