Nucleonics Inc., of Horsham, Pa., formed a clinical advisory board to include Francis Chisari, Jules Dienstag, Thomas London, John McHutchison and Robert Perrillo.

Nuvios Inc., of Cambridge, Mass., appointed Richard Lyttle president and CEO.

OncoGenex Technologies Inc., of Vancouver, British Columbia, appointed Neil Clendeninn to its board.

Oragenics Inc., of Alachua, Fla., named Edmund Mickunas vice president of regulatory and clinical affairs.

Osteotech Inc., of Eatontown, N.J., appointed Robert Wynalek senior vice president of sales and marketing, responsible for domestic markets.

Paratek Pharmaceuticals Inc., of Boston, appointed Malcolm Sherman to its board.

Prometheus Laboratories Inc., of San Diego, appointed Michael Allen vice president of sales, Lee McCracken corporate head of business development and Toni Wayne vice president of human resources.