Generex Biotechnology Corp., of Worcester, Mass., added Keith Knutson and James Mule to its scientific advisory board...PolyTherics Ltd., of London, added Anker Lundemose and Nigel Pitchford to its board...Promedior Inc., of Malvern, Pa., appointed Suzanne Bruhn president and CEO

Tris Pharma Inc., of Monmouth Junction, N.J., named Amanda Wohlleber vice president of scale-up and technical services and Rajul Parikh vice president, operations...Vaximm AG, of Basel, Switzerland, and Mannheim, Germany, appointed Jean Paul Prieels to its board...Ziopharm Oncology Inc., of New York, appointed Jason Amello executive vice president and chief financial officer

Biodel Inc., of Danbury, Conn., added Julia Brown and Davey Scoon to its board...Knopp Biosciences, of Pittsburgh, named Steven Boyd senior director of chemistry and Ian Reynolds senior director of biology...Sernova Corp., of London, Ontario, elected Bruce Weber and James Parsons to its board

XOMA Corp., of Berkeley, Calif., named Paul Rubin senior vice president, research and development

and Santosh Varghese vice president of medical affairs...The company promoted Barbara Troupin to vice president, scientific communication and risk management...named CFO Timothy Morris senior vice president, global corporate development and finance

LLC, of Kalamozoo, Mich., added Barbara Cannon to its science and medical advisory board...Northwest Biotherapeutics, of Bethesda, Md., added Navid Malik and Jerry Jasinowski to its board...Syndax Pharmaceuticals Inc., of Waltham, Mass., appointed Arlene Morris CEO and Joanna Horobin president

AcelRx Pharmaceuticals Inc., of Redwood City, Calif., named Kim Gaumer vice president, regulatory affairs and quality assurance...Array BioPharma Inc., of Boulder, Colo., appointed Howard Holden vice president of regulatory affairs and quality assurance...Avion Pharmaceuticals LLC, of Atlanta, appointed Michael Sullivan vice president, sales and marketing

Pluristem Therapeutics Inc., of Haifa, Israel, appointed Jeffrey Olin, Manesh Patel, Petra Reinke and J. Andre Schmidt-lucke to its new peripheral artery disease steering committee...PTC Therapeutics Inc., of South Plainfield, N.J., named Claudia Hirawat president and Mark Boulding executive vice president and chief legal officer

Constellation Pharmaceuticals Inc., of Cambridge, Mass., named Keith Dionne president and CEO and Mark Goldsmith executive chairman of the board...Intermune Inc., of Brisbane, Calif., added Jean-Jacques Bienaime and Frank Verwiel to its board...OvaScience, of Cambridge, Mass., added Jeffrey Capello and John Simon to its board

3SBio Inc., of Shenyang, China, named Jing Lou board chairman and added Dongmei Su to its board...Anaphore Inc., of La Jolla, Calif., added Peppi Prasit and Raymond Stevens to its board...Silence Therapeutics plc, of London, appointed Detlef Schuppan and Massimo Pinzani to its newly created scientific advisory board

Avanir Pharmaceutics Inc., of Aliso Viejo, Calif., appointed Rohan Palekar senior vice president and chief commercial officer...ImmunoCellular Therapeutics Ltd., of Woodland Hills, Calif., appointed Richard Chin chairman of the compensation committee and added him to its board and the audit committee...Novavax Inc., of Rockville, Md., named John Hermann vice president and general counsel

CombiMatrix Corp., of Irvine, Calif., appointed Richard Ding and Joseph Limber to its board...and Christine Mikail, executive vice president, corporate development, general counsel and secretary

ImmunoGen Inc., of Waltham, Mass., added Kristine Peterson and Dean Mitchell to its board...and added Eunan Maguire senior vice president of strategy and corporate development

ImmunoGen Inc., of Waltham, Mass., added Kristine Peterson and Dean Mitchell to its board...and added Eunan Maguire senior vice president of strategy and corporate development

The revisions will reflect technological advancements and marketing developments that have emerged over the past decade...Viewed as a way to take the hard choices of curbing Medicare expenses out of the hands of Congress, the board – made up of presidential appointments confirmed by the Senate – is charged with cutting Medicare costs if its spending exceeds a predetermined target growth rate. (See BioWorld Today, July 14, 2011, and Sept. 20, 2011.) Although President Barack Obama has proposed

NeoStem Inc., of New York, appointed Martyn D. Greenacre and Andrew L. Pecora to the board...NexImmune Inc., of Gaithersburg, Md., appointed Kenneth Carter CEO and named Jonathan Schneck chairman of the clinical and scientific advisory board

NeoStem Inc., of New York, appointed Martyn D. Greenacre and Andrew L. Pecora to the board...NexImmune Inc., of Gaithersburg, Md., appointed Kenneth Carter CEO and named Jonathan Schneck chairman of the clinical and scientific advisory board

InteRNA Technologies BV, of Utrecht, the Netherlands, appointed Mark Vaeck and Sanne Weijzen to its board chaired by Anker Lundemose...It also named Robert B. Shapiro and Jeffrey B. Kindler to its board

Codexis Inc., of Redwood City, Calif., named Wesley J. Bolsen vice president and chief marketing officer...Curis Inc., of Lexington, Mass., appointed Maurizio Voi chief medical and chief development officer