Penwest Pharmaceuticals Co., of Danbury, Conn., appointed Peter Drake to its board.

PharmaFrontiers Corp., of The Woodlands, Texas, appointed Eliezer Huberman chairman of its scientific advisory board.

Pharmos Corp., of Iselin, N.J., appointed Howard Grossberg vice president of drug development, and Iris Alroy vice president of research.

Pharsight Corp., of Mountain View, Calif., appointed James Hayden senior vice president of global sales.

Pressure BioSciences Inc., of West Bridgewater, Mass., appointed Steven Hebert chief financial officer, vice president of finance, and assistant treasurer, and Jose Lanuza director of sales.

Protein Polymer Technologies Inc., of San Diego, appointed James McCarthy to its board.

Protiveris Inc., of Rockville, Md., appointed Gregory Kellogg chief technology officer.

Provectus Pharmaceuticals, of Knoxville, Tenn., appointed David Darst to its corporate advisory board.

Questcor Pharmaceuticals Inc., of Union City, Calif., appointed Craig Chambliss vice president of sales and marketing.