Valneva COVID-19 vaccine: Type, side effects, considerations - Medical News Today

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VLA2001, a new COVID-19 vaccine developed by Valneva, a French biotechnology company, using traditional methods, has now received conditional marketing authorization in the United Kingdom.
Share on Pinterest What is there to know about Valneva, the new COVID-19 vaccine approved in the United Kingdom?
Medicines Regulatory and Healthcare Products Regulatory Agency (MHRA) has granted regulatory approval for the use of a new COVID-19 vaccine, developed by the French biotechnology company Valneva.
” Potential benefits The five already-authorized vaccines have been effective in reducing the toll of COVID-19, so what does this new vaccine add?
Across European countries, five vaccines have gained use authorization: Pfizer, Moderna, Oxford-AstraZeneca, Johnson & Johnson (Janssen), and Novavax.

Valneva COVID-19 vaccine: Type, side effects, considerations - Medical News Today

VLA2001, a new COVID-19 vaccine developed by Valneva, a French biotechnology company, using traditional methods, has now received conditional marketing authorization in the United Kingdom. Could it prove more acceptable to the vaccine hesitant, be more effective against new variants, or improve the situation in low-income countries? Medical News Today looks at the evidence. Share on Pinterest What is there to know about Valneva, the new COVID-19 vaccine approved in the United Kingdom? Image credit: Ayman Yaqoob/Anadolu Agency via Getty Images. With more than 6.2 million deaths and close to 510 million cases confirmed worldwide by the World Health Organization (WHO), COVID-19 has wrought a heavy toll. In high-income countries, such as the United States and the United Kingdom , although case rates remain high, vaccination has been effective in reducing hospitalizations and deaths. Around the world, COVID-19 vaccines have been and are being authorized. Across European countries, five vaccines have gained use authorization: Pfizer, Moderna, Oxford-AstraZeneca, Johnson & Johnson (Janssen), and Novavax. In the U.S. , Pfizer, Moderna, and Johnson & Johnson have so far received authorization or approval for use. Now, the U.K. Medicines Regulatory and Healthcare Products Regulatory Agency (MHRA) has granted regulatory approval for the use of a new COVID-19 vaccine, developed by the French biotechnology company Valneva. Similar efficacy Some phase 1 and 2 trials and one phase 3 trial have been completed, but the results have yet to be peer-reviewed. The MHRA approved the vaccine on immunobridging data — data measuring immune markers to infer vaccine efficacy — rather than results of clinical trials in volunteers. The phase 1/2 trial whose data has been published had only 153 participants, but the results were encouraging. Participants experienced only mild side effects — localized tenderness and soreness at the injection site, headache, or fatigue in around half of the recipients — and immune responses were good. Valneva has reported immune responses comparable to existing vaccines and few side effects in its phase 3 trial, which involved 4,012 participants. Prof. William Schaffner, professor of infectious diseases at the Vanderbilt University School of Medicine in Nashville, TN, told Medical News Today he was nevertheless cautious about the new vaccine: “There are some other protein-based whole-cell-like vaccines that have been made in the traditional way, such as the Chinese vaccine [Sinopharm], that, although they are effective, haven’t been quite as effective as the mRNA vaccines. So we’ll have to see.” Potential benefits The five already-authorized vaccines have been effective in reducing the toll of COVID-19, so what does this new vaccine add? Some people are hesitant about the existing COVID-19 vaccines because of their rapid development and especially the new mRNA technologies used in the Pfizer and Moderna vaccines. Because Valneva uses inactivated whole-virus particles, in common with many familiar vaccines, might people be more willing to accept it? “It might attract some [vaccine-hesitant] people because it is a very traditional technology, but I don’t think it will be, as we say in the U.S., a game-changer.” – Prof. William Schaffner High-income countries already have a good vaccination coverage, so it is unlikely to make a great difference there. However, the Valneva vaccine has one big advantage over the mRNA vaccines. It can be transported easily and stored at normal fridge temperatures, which could help worldwide vaccine rollout, as Prof. Schaffner confirmed. “Even in [low-income] countries they have cold chains that are used to these temperatures, which would make it much more readily transportable in challenging environments,” he told us. More effective against variants? Some experts have suggested that a vaccine using the whole virus may be more effective against new variants, as Prof. Eleanor Riley, professor of immunology and infectious disease at the University of Edinburgh, notes: “One particular advantage of the Valneva vaccine is that it is made up of the whole SARS-CoV-2 virus, not just the spike protein. This means that it will induce antibodies and T cell cells against many different components of the virus, including components that are much less susceptible to variation than the spike protein. It is possible, therefore, that this vaccine may provide better protection against new variants as they arise.”
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