Troy W. McCall, Ph.D. has been promoted from chief operating officer to chief executive officer at Premier Research Group, effective immediately. He replaces Dr. Simon Yaxley, who will transition to an advisory role with the company’s board of directors as deputy chairman. Michael Barry, non-executive chairman of the board, said, “On behalf of the board, I would like to thank Dr. Yaxley for his efforts, commitment to excellence, and vision as CEO and co-founder of Premier Research. Dr. McCall...