CHARLESTON, S.C. & RESEARCH TRIANGLE PARK, N.C.--(BUSINESS WIRE)--Argolyn Bioscience Inc., a biotechnology company developing novel drugs to treat psychosis, pain and other disorders, today announced that it has expanded its management team with the addition of two key leaders. M. Nixon (Nick) Ellis, Ph.D. has joined the company as President and CEO and George (Barney) Koszalka, Ph.D. has become the company’s Chief Development Officer.