Committee Composition

Below is a summary of our committee structure and membership information. To read more about any of the committees, click on committee names in the chart below.
Chairperson Chairperson Committee Member Member Financial Expert Financial Expert
 Audit CommitteeNominating and Corporate Governance CommitteeCompensation Committee
Gerald D. Cagle, Ph.D. 
Biography PhotoGerald D. Cagle, Ph.D.
Chief Operating Officer, Cognoptix, Inc.


Dr. Cagle has served on our board of directors since July 2013. Dr. Cagle has served as Chief Operating Officer at Cognoptix, Inc., a biotechnology company focused on the diagnosis of Alzheimer’s disease, since December 2008. He is also Senior Advisor and Head of Business Development for GrayBug, LLC, a platform drug delivery company. Previously, Dr. Cagle served as Senior Vice President of Research and Development at Alcon Laboratories, Inc., from 1997 to 2008, assuming the responsibility of... 
  Committee Member Chairperson
Richard Croarkin Financial Expert
Biography PhotoRichard Croarkin
Former SVP, CFO, Corporate Strategy Officer, Alcon, Inc.


Mr. Croarkin served as the Chief Financial Officer of Nestlé Health Science S.A., a division of Nestlé focused on medicalized nutrition solutions for chronic medical conditions. Prior to this, Mr. Croarkin was Senior Vice President of Finance, Chief Financial Officer & Corporate Strategy Officer at Alcon, Inc., which was the world’s leading ophthalmic pharmaceutical and medical device company before its acquisition by Novartis in 2011. Before Alcon, Mr. Croarkin served as EVP and CFO of Nestlé... 
Chairperson   
William D. Humphries 
Biography PhotoWilliam D. Humphries
Chief Executive Officer, Merz, Inc.


Mr. Humphries has served as a director of our company since January 2012. Mr. Humphries has served as President and Chief Executive Officer of the North American business of Merz, Inc., an affiliate of Merz Pharma Group, a specialty healthcare company, since March 2012. From 2006 to March 2012, he served in a number of leadership positions with Stiefel Laboratories, Inc., a dermatology pharmaceutical company, including as its Chief Commercial Officer and then as its President beginning in 2008... 
Committee Member   
Christy Shaffer, Ph.D. 
Biography PhotoChristy Shaffer, Ph.D.
Chairwoman of the Board


Dr. Shaffer has served as a director of our company and as the chairman of our board of directors since January 2012. Since 2011, Dr. Shaffer has served as a Venture Partner with Hatteras Venture Partners, an investment firm, and as Managing Director of Hatteras Discovery, which invests in early-stage companies in the life sciences industry sector. From 1995 to March 2010, Dr. Shaffer served in increasing leadership positions at Inspire Pharmaceuticals, a publicly held biopharmaceutical compan... 
  Chairperson Committee Member
Derek Yoon 
Biography PhotoDerek Yoon
Partner, Aju IB Investment


Mr. Yoon is Partner at Aju IB Investment, one of leading venture capital firms in Korea. Based in Boston, Massachusetts, Mr. Yoon oversees Aju IB’s international investments with focus on U.S. based life science companies and early stage start-ups with novel science. Mr. Yoon also leads multiple cross-border strategic partnerships by leveraging his strong relationship with top-tier pharmaceutical companies in Korea. Currently, he is also involved in multiple overseas venture capital fundraising ... 
Committee Member   
Evgeny Zaytsev, M.D., Ph.D. 
Biography PhotoEvgeny Zaytsev, M.D., Ph.D.
Managing Partner, PMI Partners


Dr. Zaytsev is a venture capitalist with more than twelve years’ investment experience in life sciences. Before joining RMI Partners (the management company for RusnanoMedInvest) he was a general partner at Palo-Alto, CA-based Helix Ventures, which he co-founded to exclusively invest in novel therapeutic opportunities in biopharmaceuticals and medical devices. Prior to Helix Dr. Zaytsev was a partner of the venture capital pioneer Pitch Johnson at Asset Management Company, one of the oldest ve... 
   Committee Member