Alza Corp., of Mountain View, Calif., promoted Bruce Cozadd to executive vice president and chief operating officer, and Peter Staple to executive vice president and chief administrative officer.

Avant Immunotherapeutics Inc., of Needham, Mass., appointed Fritz Casselman senior vice president, strategy and corporate development, and Avery Catlin senior vice president, chief financial officer.

BioCryst Pharmaceuticals Inc., of Birmingham, Ala., appointed Randall Pittman chief financial officer.

BioSpecifics Technologies Corp., of Lynbrook, N.Y., appointed to its board of directors John Lane, a consultant.

British Biotech plc, of Oxford, UK, named Paul Nicholson non-executive director.

Chiron Corp., of Emeryville, Calif., named Andrew Heaton vice president and chief of operations for its blood-testing business.

Connetics Corp., of Palo Alto, Calif., named Krisztina Zsebo executive vice president of research and product development.

Cyberonics Inc., of Houston, named Richard Kuntz vice president, operations.

diaDexus LLC, of Santa Clara, Calif., named Patrick Plewman president in addition to his duties as chief operating officer.

Discovery Partners International, of San Diego, named Richard Brown president of its Irori subsidiary.

EluSys Therapeutics Inc., of Pine Brook, N.J., elected to its board of directors William Miller, former vice chairman of Bristol-Myers Squibb Co.

EraGen BioSciences, of Alachua, Fla., named Keith Prokop director of sales and marketing.

Gene Logic Inc., of Gaithersburg, Md., appointed David Murray senior vice president, marketing and sales.

GenSci Regeneration Sciences Inc., of Toronto, promoted James DeMesa to chief executive officer, and Douglass Watson to executive vice president as well as president and chief operating officer of its U.S. subsidiary, GenSci Orthobiologics Inc., of Irvine, Calif.

Genta Inc., of Lexington, Mass., elected to its board of directors Daniel Von Hoff, a professor of medicine and the director of the University of Arizona Cancer Center. He is the current president of the American Association for Cancer Research.

Ilex Oncology Inc., of San Antonio, promoted Michael Dwyer to senior vice president, administration; Gregory Weaver to vice president and chief financial officer; and Ronald Tefteller to vice president and general counsel.

Infigen Inc., of DeForest, Wis., promoted Michael Bishop to president.

Inflazyme Pharmaceuticals Ltd., of Vancouver, British Columbia, named Kevin Mullane senior vice president research and development and Walter Singleton clinical and regulatory consultant.

Ismed Pharmaceuticals Inc., of Richmond, Va. appointed Robert Falconer vice president, technical operations.

Josline Diabetes Center, of Boston, named Ronald Kahn president.

Kinetek Pharmaceuticals Inc., of Vancouver, British Columbia, elected Julia Levy, president and CEO of QLT PhotoTherapeutics Inc., chairman of its board of directors, and Lawrence Fritz, founder of Conforma Therapeutics Corp., of Rancho Santa Fe, Calif., a board member. In addition, it named David Moran special adviser, research and development.

Kiva Genetics Inc., of Mountain View, Calif., named Gregory Went chief operating officer.