Biogen Idec Appoints Spyros Artavanis-Tsakonas Chief Scientific Officer

  Biogen Idec Appoints Spyros Artavanis-Tsakonas Chief Scientific Officer

    – Addition of Renowned Scientist Underscores Commitment to Vibrant and
                       Innovative Scientific Research –

Business Wire

WESTON, Mass. -- May 23, 2013

Biogen Idec (NASDAQ:BIIB) today announced that Spyros Artavanis-Tsakonas,
Ph.D., has been named the company’s Chief Scientific Officer (CSO). Dr.
Artavanis-Tsakonas had served as interim CSO while on sabbatical from Harvard
Medical School. He will now continue in this role in a permanent capacity, and
will also lead the company’s research strategy, capabilities and discovery
platforms. Dr. Artavanis-Tsakonas will report to Doug Williams, Executive Vice
President of Research and Development. He will continue to serve as a
Professor of Cell Biology at Harvard Medical School, where he was the founding
Director of the Developmental and Regenerative Biology graduate program.

“It’s with great excitement that we welcome Spyros to Biogen Idec as our Chief
Scientific Officer,” said Doug Williams, Executive Vice President of Research
and Development. “He will continue what he has successfully started at Biogen
Idec—attracting and encouraging exceptional scientific talent, enhancing our
existing early discovery programs, establishing extensive academic
collaborations and leading our drug discovery strategy.”

“It’s a critical time in history for the biopharmaceutical industry where the
potential to make a meaningful difference for patients has never been greater.
Moreover, we are at a crossroads regarding opportunities for extensive
collaborations with academia so that we can together leverage scientific
innovation with the industry’s know-how for translation and drug development,”
said Dr. Artavanis-Tsakonas. “I believe that Biogen Idec is positioned to have
one of the premier research organizations in the industry and that our
discovery efforts hold tremendous potential for patients in the areas of
neurodegenerative disease, autoimmune disorders and hemophilia.”

Dr. Artavanis-Tsakonas has been a Professor of Cell Biology at the Harvard
Medical School since 1999. Prior to that, from 1999 to 2012, he was Professor,
Collège de France, serving as Chair of Biology and Genetics of Development,
and from 1999 to 2007, he was also the K.J. Isselbacher- P. Schwartz Professor
at the Massachusetts General Hospital Cancer Center and Director of
Developmental Biology and Cancer at the Harvard Medical School. Throughout his
career, Dr. Artavanis-Tsakonas has been a professor and scientific
investigator at other prestigious institutions, including Professor,
Department of Biology at Yale University; Professor, Department of Cell
Biology at the Yale University School of Medicine; and a Howard Hughes Medical
Institute Investigator. He is also a Founding Director of The Department of
Developmental Biology and Genetics at the Curie Institute in Paris.

Dr. Artavanis-Tsakonas obtained his M.Sc. in Chemistry from the Federal
Institute of Technology, Zurich (Eidgenoessische Technische Hochschule) and a
Ph.D. in Molecular Biology from the University of Cambridge, England, where he
performed his research at the MRC Laboratory of Molecular Biology. His
postdoctoral research was completed at Biozentrum, University of Basel and
Stanford University. In addition to his academic credentials, Dr.
Artavanis-Tsakonas is the scientific co-founder of Exelixis Pharmaceuticals,
Inc., Cellzome, a GSK company, and Anadys Pharmaceuticals, Inc.

AboutBiogen Idec

Through cutting-edge science and medicine,Biogen Idecdiscovers, develops and
delivers to patients worldwide innovative therapies for the treatment of
neurodegenerative diseases, hemophilia and autoimmune disorders. Founded in
1978,Biogen Idecis the world’s oldest independent biotechnology company.
Patients worldwide benefit from its leading multiple sclerosis therapies, and
the Company generates more than$5 billionin annual revenues. For product
labeling, press releases and additional information about the Company, please


Biogen Idec Media Contact:
Amanda Brown Galgay, 781-464-3260
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