plc, of Dublin, Ireland, appointed Colin W. Stewart president, CEO and a member of the company's board, effective Aug. 16...Selecta Biosciences Inc., of Watertown, Mass., appointed Werner Cautreels president and CEO...Cautreels most recently served as CEO and global head of R&D at Solvay Pharmaceuticals Inc., acquired earlier this year by Abbott, of Abbott Park, Ill. (See BioWorld Today, Sept. 29, 2009

Celsion Corp., of Columbia, Md., appointed Sid Taubenfeld director of communications and strategic initiatives and named Robert W. Hooper to its board...Dynavax Technologies Corp., of Berkeley, Calif., promoted J. Tyler Martin to president and appointed him to the board

The firm also appointed Ronald Evans and David Mangelsdorf to its scientific advisory board

plc, of Dublin, Ireland, named Eliseo Oreste Salinas executive vice president and chief medical officer...Ikaria Inc., of Clinton, N.J., appointed Martin Meglasson chief science officer, and named Craig Tooman senior vice president and chief financial officer...Hueneme, Calif., appointed Malcolm Gefter to its board and scientific advisory board

Adeona Pharmaceuticals Inc., of Ann Arbor, Mich., appointed Julie A. Caudill vice president of finance and corporate controller...Ambit Biosciences Corp., of San Diego, appointed Alan J. Lewis chairman and CEO...Lewis, who most recently served as president and CEO of the Juvenile Diabetes Research Foundation, has been serving as Ambit's executive chairman since March

The Foundation for the National Institutes of Health appointed Scott Campbell director and CEO...Taris Biomedical Inc., of Lexington, Mass., appointed Sarma Duddu president, CEO and a member of its board...Most recently, Duddu was general manager and vice president of worldwide drug delivery technologies at CIMA Labs Inc, a wholly owned subsidiary of Cephalon Inc., of Frazer, Pa

Novavax Inc., of Rockville, Md., appointed John W. Madsen head of process and manufacturing operations and named Steven Pincus head of analytical and quality operations...Probiodrug AG, of Halle, Germany, appointed Claus Braestrup chairman and named Lennart Mucke to its scientific advisory board

CombiMatrix Corp., of Mukilteo, Wash., named Mark McGowan interim president and CEO, effective July 1...Cyntellect Inc., of San Diego, appointed Saiid Zarrabian president and CEO...and Jonathan M. Spergel to its scientific advisory board

Allegro Diagnostics, of Boston, appointed Duncan Whitney vice president of research and development...Qiagen NV, of Venlo, the Netherlands, appointed Pia Garguilo and Richard Watts to its pharma business development team...Renhuang Pharmaceuticals Inc., of Harbin, China, appointed Changxiong Sun and Bingchun Wu to its board of directors as independent directors

He formerly was vice president of regulatory affairs and clinical research at Mystic Pharmaceuticals Inc...and served as senior consultant at Parexel International Corp...The company also named Sam Backenroth interim chief financial officer and vice president of business development

Xcellerex Inc., of Marlborough, Mass., appointed Guy Broadbent president and CEO...The firm's former president and CEO, Joseph Zakrzewski, will remain on with the company as chairman of the board...Silicon Kinetics Inc., of San Diego, named Rick Brown and Eric Topol to its board

AcelRx Pharmaceuticals Inc., of Redwood City, Calif., has appointed Richard King president and CEO...Previously, King was president and general manager of Tercica Inc., which was acquired by Ipsen SA, of Paris, in 2008...Oxigene Inc., of South San Francisco, appointed Tamar Howson and its CEO Peter J. Langecker, to its board of directors

Semprus BioSciences Inc, of Cambridge, Mass., appointed Colin R. Gardner and Michael J. Cima to its scientific advisory board...Spectral Diagnostics Inc., of Toronto, appointed Kevin Giese and Laine Woollard to its board...TrovaGene Inc., of San Diego, named Andreas Braun vice president and chief medical officer

Afraxis, of San Diego, appointed David Campbell chief scientific officer and named Carmine Stengone vice president of corporate development...EUSA Pharma, of Oxford, UK, named Iain McGill president, Europe and International...GeoVax Labs Inc., of Smyrna, Ga., added Steven Antebi and David A. Dodd to its board

Arlen, who initially had joined the firm in July 2008 as president and chief medical officer, spent 11 years at the National Cancer Institute before joining Neogenix...IBio Inc., of Newark, Del., appointed Philip K. Russell to its board and named Vidadi Yusibov chief scientific officer

De Souza was previously president and CEO of Synaptic Pharmaceuticals, president and CEO of Archemix Corp., co-founder and chief scientific officer of Neurocrine Biosciences, senior vice president at Aventis and director of CNS diseases research at DuPont Merck

No CEO replacement was named, but the firm said Mel Bridges and John Chiplin both will move to executive director roles within the company...Karo Bio AB, of Stockholm, Sweden, appointed Fredrik Lindgren as CEO and president, succeeding Per Olof Wallström, who has resigned and is leaving the company

Catalyst Biosciences Inc., of South San Francisco, named William J. Dawson chief financial officer. Garnet BioTherapeutics Inc., of Malvern, Pa., appointed Sanjay Batra senior vice president of development. NeoStem Inc., of New York, appointed Mariusz Ratajczak to its scientific advisory board. Orexigen Therapeutics Inc., of San Diego, appointed Peter K. Honig to its board. PharmaNet Development Group Inc., of Princeton, N.J., named George A. McMillan chief financial officer. Transdel

AspenBio Pharma Inc., of Castle Rock, Colo., has appointed Steve Lundy CEO and a member of its board...IGEN Networks Corp., of Las Vegas, appointed Monty Ormsby president and Michael Grudman chief financial officer and secretary