Investor Group

The Frost Group, LLC

The Frost Group is a private investment firm based in Miami and is led by Phillip Frost, M.D. Dr. Frost is the CEO and Chairman of OPKO Health. He has been the Chairman of the Board of Teva Pharmaceutical Industries, Limited, since March 2010 and had previously been Vice Chairman since January 2006 when Teva acquired IVAX Corporation, or IVAX. Dr. Frost had served as Chairman of the Board of Directors and Chief Executive Officer of IVAX Corporation since 1987.

OPKO Health, Inc.

OPKO Health (NYSE: OPK) is a publicly traded healthcare company involved in the discovery, development and commercialization of proprietary pharmaceutical products, medical devices, vaccines, diagnostic technologies and imaging systems.

Teva Pharmaceutical Industries Ltd.

Teva Pharmaceutical Industries (NYSE: TEVA) is a leading global pharmaceutical company, committed to increasing access to high-quality healthcare by developing, producing and marketing affordable generic drugs as well as innovative and specialty pharmaceuticals and active pharmaceutical ingredients. Headquartered in Israel, Teva is the world's largest generic drug maker.

Raymond F. Schinazi

Raymond F. Schinazi is the Founder and Director of RFS Pharma, LLC, a position he has held since 2004. He has been at Emory University since 1978 and currently serves as the Frances Winship Walters Professor of Pediatrics and Director of the Laboratory of Biochemical Pharmacology at Emory University. Since 1983, he has been affiliated with the Atlanta Department of Veterans Affairs and currently serves as Senior Research Career Scientist. He is also the Director of the Scientific Working Group on Viral Eradication for the NIH-sponsored Emory University Center for AIDS Research (CFAR). In addition, Dr. Schinazi currently serves as a Governing Trustee for the Foundation for AIDS Research (amfAR) and serves as a non-executive Director of Gliknik Inc. and also reViral Ltd.

Brace Pharma Capital

Brace Pharma Capital is a strategic investment company formed by EMS S/A, the largest pharmaceutical company in Brazil, and high net worth biotech investors.