Achillion Pharmaceuticals Inc., of New Haven, Conn., named Lisa Dunkle senior vice president, drug development and added Kevin Eastwood as director of business development.

Aurora Biosciences Corp., of San Diego, named Wendell Wierenga, CEO of Syrrx Inc., to its board of directors.

Biogen Inc., of Cambridge, Mass., named Cornelis Lucas director, international science and technology development.

Biotica Technology Ltd., of Cambridge, England, named Mike Hayes non-executive director.

Cell Pathways Inc., of Horsham, Pa., named Martha Manning senior vice president, general counsel and secretary.

Collateral Therapeutics Inc., of San Diego, promoted Patricia Novak to vice president of program management.

Cryo-Cell International Inc., of Clearwater, Fla., named Mercedes Walton to its board of directors.

Elan Corp. plc, of Dublin, Ireland, appointed Daniel Welch president, Elan Pharmaceuticals. He also will be a member of its executive committee of the board of directors.

Genomic Solutions Inc., of Ann Arbor, Mich., appointed Kathleen Murphy to vice president, corporate communications.

Immunex Corp., of Seattle, promoted Robert Bettencourt to vice president of managed care, Edison Russell to vice president of specialty therapeutics sales and Michael Ambielli to senior director of commercial operations.

Kosan Biosciences Inc., of Hayward, Calif., added Robert Johnson to its senior executive management team and also named him vice president, medical affairs and corporate development.

Labopharm Inc., of Laval, Quebec, appointed Allan Mandelzys vice president, business development; Warren Whitehead interim chief financial officer; and Vincent Lenaerts chief scientific officer.

Paratek Pharmaceuticals Inc., of Boston, appointed Beverly Armstrong vice president and chief financial officer.

Procyon BioPharma Inc., of Montreal, appointed Christopher Newman vice president and chief scientific officer.

Protogene Laboratories Inc., of Menlo Park, Calif., appointed Steven Van Dick chief financial officer and vice president finance and administration, Robert Barrett vice president of sales and marketing, Peter Christey vice president of business development, Rich Meyer vice president of research and development and William Picht vice president of operations.