Acadia Pharmaceuticals Inc., of San Diego, appointed to its board of directors Arvid Carlsson, emeritus professor of pharmacology at the University of Goteborg, Sweden, and a member of the Swedish Academy of Sciences.

SuperGen Inc., of San Ramon, Calif., named Ronald Spair chief financial officer.

Trimeris Inc., of Durham, N.C., said CEO Dani Bolognesi will assume the position of president as well. Robert Bonczek was named acting chief administrative officer and acting chief financial officer.