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Sanofi and GSK to join forces to develop vaccine for COVID-19

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Candidate vaccine expected to enter clinical trials in the second half of 2020 and, if successful, to be available in the second half of 2021

Sanofi and GSK have signed a letter of intent to develop an adjuvanted vaccine for COVID-19, using innovative technology from both companies, to help address the ongoing pandemic. Sanofi will contribute its S-protein COVID-19 antigen, which is based on recombinant DNA technology. Reportedly, this technology has produced an exact genetic match to proteins found on the surface of the virus, and the DNA sequence encoding this antigen has been combined into the DNA of the baculovirus expression platform, the basis of Sanofi’s licensed recombinant influenza product in the US.

GSK will contribute its pandemic adjuvant technology. The use of an adjuvant can be of particular importance in a pandemic situation since it may reduce the amount of vaccine protein required per dose, allowing more vaccine doses to be produced and therefore contributing to protect more people.

“As the world faces this unprecedented global health crisis, it is clear that no one company can go it alone. That is why Sanofi is continuing to complement its expertise and resources with our peers, such as GSK, with the goal to create and supply sufficient quantities of vaccines that will help stop this virus,” said Paul Hudson, CEO, Sanofi.

“This collaboration brings together two of the world’s largest vaccines companies. By combining our scientific expertise, technologies and capabilities, we believe that we can help accelerate the global effort to develop a vaccine to protect as many people as possible from Covid19,” said Emma Walmsley, Chief Executive Officer, GSK.

The companies plan to initiate phase I clinical trials in the second half of 2020 and, if successful, subject to regulatory considerations, aim to complete the development required for availability by the second half of 2021.

The development of the recombinant-based COVID19 vaccine candidate is being supported through funding and a collaboration with the Biomedical Advanced Research and Development Authority (BARDA), part of the office of the Assistant Secretary for Preparedness and Response at the U.S. Department of Health and Human Services. The companies plan to discuss funding support with other governments and global institutions prioritising global access.
“Strategic alliances among vaccine industry leaders are essential to make a coronavirus vaccine available as soon as possible. Development of the adjuvanted recombinant-based COVID-19 vaccine candidate holds the potential to lower the vaccine dose to provide vaccine to a greater number of people to end this pandemic, and help the world become better prepared or even prevent future coronavirus outbreaks,” said Rick A Bright, Director, BARDA.

The companies have set up a Joint Task Force, co-chaired by David Loew, Global Head of Vaccines, Sanofi and Roger Connor, President Vaccines, GSK. The task force will seek to mobilise resources from both companies to look for every opportunity to accelerate the development of the candidate vaccine.

The companies have entered into a Material Transfer Agreement to enable them to start working together immediately. Definitive terms of the collaboration are expected to be finalised over the next few weeks.

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