The University of the Sciences is making another leadership change, but it also will be temporary.

Marvin Samson, board chair, is stepping down as interim president, a post he assumed Jan. 1 upon the sudden departure of Helen Giles-Gee after only two and a half years at the helm. Samson, founder and CEO of Samson Medical Technologies, LLC, will remain board chair.

Replacing him in the interim president's role is Kathleen Mayes, also an alum and vice chair of the board. Mayes, who has been on the board since 2004, is founder of Applied Clinical Communications, Inc., of Parsippany, N.J., a pharmaceutical consulting company that she sold in 2000. She has both a pharmacy degree and a doctor of pharmacy from the university, and the university's College of Healthcare Business and Policy bears her name.

The leadership change is effective July 13, the university said.

The school is continuing its search for a new president, said spokesman Brian Kirschner.

Ken Murtha, a retired senior vide president from AstraZeneca who is leading that search, will step in as vice chair of the board, the university announced.