Global Blood Therapeutics (GBT) announced the appointment of Willie L. Brown, Jr., former mayor of San Francisco, speaker of the California State Assembly and respected community leader, to the company's board of directors. With more than 50 years of political, business and non-profit experience, Brown will serve as a key resource to GBT not only in it's regular business activities but also in helping the Company build and advocate for a nationwide community of sickle cell disease (SCD) patients, researchers, clinicians and other key constituents. He currently serves as chairman and chief executive officer of The Willie L. Brown, Jr. Institute on Politics and Public Service.