GrayBug, Inc. announced that Jeffrey L. Cleland, Ph.D., will assume the role of interim Chief Executive Officer. Christy Shaffer, Ph.D., Managing Director of Hatteras Discovery at Hatteras Venture Partners, has been named Executive Chair of the company's board of directors. Drs.

Cleland and Shaffer will work together to accelerate the company's programs and advance potential collaborations. President and CEO Michael O'Rourke will transition into a strategic advisory role.