NextGen Sciences Ltd., of Huntingdon, UK, appointed Tim Sutton chief financial officer and to its board.

Odyssey Thera Inc., of San Ramon, Calif., added Aaron Solomon as vice president, business development.

Orthovita Inc., of Malvern, Pa., appointed Mary Paetzold to its board.

PTC Therapeutics Inc., of South Plainfield, N.J., formed a scientific advisory board consisting of Allan Jacobson, Eric Jacobsen, Paul Marks, Robert Schneider and Marvin Wickens.

TargeGen Inc., of San Diego, appointed Anthony DeMaria to its scientific advisory board.

Viragen Inc., of Plantation, Fla., said its subsidiary, ViraGenics Inc., named Grahame Bulfield to its board.