Mr. Jon S. Saxe, has served as a Director since September 2003. Mr. Saxe is currently a director of a number of biotechnology and pharmaceutical companies including SciClone, Excalibur Enterprises, Entelos Inc. and several private companies.

From January 1995 to May 1999, Mr. Saxe was President of Protein Design Labs, a leading company in the development of humanized antibodies. During 1999, he was an Executive-in-Residence at Institutional Venture Partners, a venture capital firm. Mr. Saxe was President of Saxe Associates, a biotechnology and pharmaceutical consulting firm, from May 1993 to December 1994. He served as President, Chief Executive Officer and as a Director of Synergen, Inc., a biopharmaceutical company acquired by Amgen, from October 1989 to April 1993. From August 1984 through September 1989, Mr. Saxe was Vice President, Licensing and Corporate Development at Hoffmann-LaRoche and also head of the patent law department and Associate General Counsel at the company from September 1978 through September 1989. Mr. Saxe received his B.S. in Chemical Engineering from Carnegie-Mellon University, a J.D. from George Washington University School of Law and an LL.M. from New York University School of Law.