ActiveSight, a San Diego-based division of Rigaku Americas Corp., hired Vicki Nienaber as chief scientific officer.

Advanced Magnetics Inc., of Cambridge, Mass., appointed David Arkowitz chief financial officer and chief business officer.

Affinium Pharmaceuticals Inc., of Toronto, hired Barry Hafkin as chief medical officer. He will establish Affinium's new regulatory team based in Austin, Texas.

Alnylam Pharmaceuticals Inc., of Cambridge, Mass., elected Victor Dzau to its board.

Amarin Corp. plc, of London, appointed Paul Duffy as president-U.S. commercial operations, a new business that will be located in New Jersey.

Angiotech Pharmaceuticals Inc., of Vancouver, British Columbia, appointed Chris Dennis senior vice president, sales and marketing.

Archemix Corp., of Cambridge, Mass., appointed Robert Stein to its board.

Bio-Bridge Science Inc., of Oak Brook, Ill., named Trevor Roy and Anthony Cheung to its board.

BioCryst Pharmaceuticals Inc., of Birmingham, Ala., appointed David McCullough vice president, strategic planning and commercialization, and Philip Breitfeld executive director, oncology development and associate chief medical officer.

BioMedInvest AG, of Basel, Switzerland, hired Frances Wildhaber as partner and Patrick Burgermeister as an associate.

BioTrove Inc., of Woburn, Mass., named Gregory Critchfield to its board.

Caliper Life Sciences Inc., of Hopkinton, Mass., hired John DelliSanti as executive vice president and chief commercial officer.

Catalyst Pharmaceutical Partners Inc., of Coral Gables, Fla., appointed Steven Miller vice president of pharmaceutical development and project management.

Codexis Inc., of Redwood, Calif., hired Joseph Sarret as vice president, corporate development, and Douglas Sheehy as vice president, general counsel and corporate secretary.

Constella Group, of Durham, N.C., named Paul Nedzbala chief operating officer of its Health Sciences business unit.

Foundation Medical Partners, of Rowayton, Conn., hired Ken Ouriel as clinical partner.

GeNOsys Inc., of Provo, Utah, elected John Livingstone to its board.

Haemacure Corp., of Montreal, appointed Joseph Akers to its board.

Hana Biosciences Inc., of South San Francisco, appointed Leon Rosenberg as non-executive chairman.

MedImmune Inc., of Gaithersburg, Md., promoted Iksung Cho to vice president, biostatistics; Anthony J. Coyle to vice president, research and development and head, inflammation and autoimmunity research; and Barbara White to vice president, clinical development inflammatory disease. It also appointed Robert Hotz to its board.

MonoSolRx, of Warren, N.J., hired Larry Kranking as senior vice president, pharmaceutical operations in Portage, Ind.

Morrison & Foerster LLP, said Margaret Pierri joined its New York office as senior counsel.

Novavax Inc., of Rockville, Md., appointed Len Stigliano interim chief financial officer.

Peplin Ltd., of Brisbane, Australia, appointed Arthur Bertolino chief medical officer and vice president, medical affairs.

PharmaNet Development Group Inc., of Princeton, N.J., hired Beverly Harrison as senior vice president business development, early stage.

Pharsight Corp., of Mountain View, Calif., promoted Daniel Weiner to the new position of chief technology officer, and added Dana Cambra as vice president, research and development.

Somaxon Pharmaceuticals Inc., of San Diego, appointed James L'Italien senior vice president, regulatory affairs and quality assurance, a new position.

Threshold Pharmaceuticals Inc., of Redwood City, Calif., appointed David Hoffmann to its board.

YM BioSciences Inc., of Mississauga, Ontario, appointed John Waterfall as interim head of program management. Also, Dianne Harris was appointed consulting project manager for the AeroLEF program.

ZymoGenetics Inc., of Seattle, promoted Michael Butine to vice president, biometrics and medical writing, and John Pribble to vice president, medical affairs.