Guillaume Leroy

Guillaume Leroy

Guillaume Leroy
Vice President, Dengue Vaccine Head, Sanofi Pasteur

Guillaume Leroy obtained a PhD in pharmacy from the University of Rouen in France and later a MBA from ESCP European Business School in Paris, completed by several executives programs from Wharton and INSEAD over his career. His 20 years of professional experience in the vaccine industry and in 5 different countries provide him with an extensive knowledge on immunization needs and the conditions to successfully implement large public vaccination programs.
He started his career at Sanofi Pasteur in 1993 in Brazil as a National Foreign Service volunteer in charge of flu marketing. He then worked in the French West Indies and English-speaking countries in Africa before becoming the Regional Director for the Andean Community of Nations and Central America where he set up the Sanofi Pasteur affiliate in Colombia. From 2002 to 2007, he took the leadership of vaccines’ commercial operations as Managing Director of Sanofi Pasteur in Mexico, where he defined and executed a major public private partnership with the federal government to produce flu vaccine locally and reinforce Sanofi Pasteur’s leading position in the country. From 2007 to 2011, he became Vice-President for Latin America responsible for vaccines’ operations in 20 countries in the region including the management of the outstanding H1N1 situation.
Since September 2011, Guillaume has been heading Sanofi Pasteur Dengue Vaccine Company based in Lyon. This multidisciplinary team is mobilized through a unique organizational structure and towards the launch of the first ever Dengue vaccine. Guillaume and his teams have contributed significantly to the development of a unique model for the dengue vaccine, focusing on an equitable access to the vaccine, on a strong industrial commitment and on the development of an extensive network of external collaborations, consolidating all activities and resources towards a common goal of making Dengue the next vaccine preventable disease.


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