Aclara BioSciences Inc., of Mountain View, Calif., added Alfred Merriweather as chief financial officer and elected Herbert Hooper to its board.

Active Pass Pharmaceuticals Inc., of Vancouver, British Columbia, elected Jennifer Hamilton to its board.

Adolor Corp., of Exton, Pa., appointed Bruce Wallin vice president, clinical research and development.

Advanced Tissue Sciences Inc., of La Jolla, Calif., elected Michael Ellwein to its board.

Advanced Viral Research Corp., of Yonkers, N.Y., appointed Albert Reichmann and Jozef Straus to its business advisory board, and named James Dicke, Christopher Forbes, David Seligman and Eli Wilner to its board of directors.

Albany Molecular Research Inc., of Albany, N.Y., added Bruce Sargent, Michael Guaciaro and David Hunt to its medicinal chemistry and chemical development management teams.

Alydar Pharmaceuticals Inc., of Mountain View, Calif., named Thomas Eisner, Jerrold Meinwald and Jocelyn Millar to its scientific advisory board.

Angiotech Pharmaceuticals Inc., of Vancouver, British Columbia, added Rui Avelar as vice president, investor relations and communications.

Applied Molecular Evolution Inc., of San Diego, appointed James Breitmeyer chief medical officer.