Seth Lederman is a physician, scientist and founder and executive officer of innovative biopharmaceuticals companies. Prior to founding Tonix, among the companies Dr. Lederman founded was Targent Pharmaceuticals, which developed late-stage oncology drugs, including pure-isomer levofolinic acid (levoleucovorin). Targent’s assets were sold to Spectrum Pharmaceuticals, which marketed levoleucovorin as Fusilev® for advanced colorectal cancer, where it gained significant market acceptance.
Dr. Lederman served as an Associate Professor at Columbia University from 1996 until April 13, 2017. He joined the faculty of Columbia University's College of Physicians and Surgeons in 1985, became Assistant Professor of Medicine in 1988, and Associate Professor with tenure in 1996 and Director of the Laboratory of Molecular Immunology in 1997. From 1988 to 2002, Dr. Lederman directed basic science research at Columbia in molecular immunology, infectious diseases and the development of therapeutics for autoimmune diseases.