Signature BioScience
Signature BioScience Inc. was the first biotechnology company based in San Francisco. It was formed in 1998 but closed in 2003 due to lack of funding. Before Signature was dissolved, it had just completed Phase II trials on Digitoxin, which the company was pursuing as an anti-cancer compound. However, the company's core competency was developing biotechnology tools that would be used to identify highly qualified pre-clinical leads. History Timeline Signature BioScience (Signature) was founded by John Hefti, a theoretical physicist who received his doctorate from UC Berkeley and studied medicine at Stanford. Signature’s main business model was to become a drug development company with preclinical leads available for licensing to pharmaceutical and biotech partners. Their main focus area was cancer, although they were in the process of developing some compounds in other therapeutic areas. Andrew Sandham later became president of the company and John Hefti became the CTO, with Mark McDade taking over as the CEO in late 2000. Towards the end of 2002, Robert J. Zimmerman succeeded Mark McDade, who left Signature to go to Protein Design Labs. Zimmerman became the President and a member of the Board of Directors, while maintaining his position as the COO; he had