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Novavax Covid-19 shot shows 90{f08ff3a0ad7db12f5b424ba38f473ff67b97b420df338baa81683bbacd458fca} efficacy, Serum Institute starts production

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US based Novavax on Monday said that its nano-particle protein based Covid-19 vaccine candidate has demonstrated an overall 90.4 percent efficacy in phase 3 clinical trials. In India its partner Serum Institute of India (SII) has started manufacturing the vaccine it has named Covovax already.


In fact, the Centre expects availability of 200 mn doses of Covovax between August and December. India will allow entry of this vaccine here once the USFDA approves it.





The vaccine candidate NVX-CoV2373 has shown 100 percent protection against moderate and severe disease, 90.4 percent efficacy overall, and also met the primary endpoint in the PREVENT-19 phase 3 trial, the company said in a statement.


Novavax will file regulatory authorizations in the third quarter (calendar year), it added. Upon regulatory approvals, the company said it is on track to reach manufacturing capacity of 100 mn doses a month by the end of the third quarter and 150 mn doses per month by the fourth quarter of 2021.


SII is a crucial partner to achieve the production targets as it is going to make around 50 mn doses of Covovax a month at Pune. The company has not disclosed the volumes it is making now, but it is less than the targeted volume of 50 mn monthly doses at the moment.


SII CEO Adar Poonawalla had hinted a couple of months back that shortage of raw material supplies from the US had affected the scale up plan for Covovax.


Novavax’s study enrolled 29,960 volunteers across 119 cities in US and Mexico to evaluate efficacy, safety and immunogenicity. The company said that it has emphasized on recruiting a representative population of communities and demographic groups most affected by the disease.


Efficacy endpoints were accrued from January 25 through April 30, 2021 — a time when the Alpha (B.1.1.7) variant, first identified in the U.K., became the predominant strain in the US. Other strains, including Variants of Interest (VoI) and Variants of Concern (VoC), were also on the rise during the PREVENT-19 endpoint accrual window.


Genetic variants of SARS-CoV-2 have been emerging and circulating around the world throughout the COVID-19 pandemic. A US government interagency group developed a Variant Classification scheme that defines three classes of SARS-CoV-2 variants: variant of interest; variant of concern; and variant of high consequence.


The B.1.1.7, B.1.351, P.1, B.1.427, and B.1.429 variants circulating in the US are classified as variants of concern. “To date, no variants of high consequence have been identified in the United States,” the Centre for Disease Control and Prevention (CDC), US noted in its website.


Novavax claimed that preliminary safety data showed that the vaccine was generally well tolerated, and serious adverse events were low in number. No single adverse event term was reported by more than one percent of the participants, it claimed.


“Today, Novavax is one step closer to addressing the critical and persistent global public health need for additional COVID-19 vaccines. These clinical results reinforce that NVX-CoV2373 is extremely effective and offers complete protection against both moderate and severe COVID-19 infection,” said Stanley C. Erck, President and Chief Executive Officer, Novavax.


“Novavax continues to work with a sense of urgency to complete our regulatory submissions and deliver this vaccine, built on a well understood and proven platform, to a world that is still in great need of vaccines.”


How the Novavax trials happened


  • 93{f08ff3a0ad7db12f5b424ba38f473ff67b97b420df338baa81683bbacd458fca} efficacy against circulating Variants of Concern and Variants of Interest


  • 91{f08ff3a0ad7db12f5b424ba38f473ff67b97b420df338baa81683bbacd458fca} efficacy in high-risk populations


  • All Covid-19 hospitalizations/death occurred in the placebo group




  • To file for regulatory approvals in Q3 2021


  • 100 mn doses per month capacity by Q3 2021


  • 150 mn doses per month by Q4 2021


  • Serum Institute is making Covovax, the Novavax vaccine candidate


  • India will allow entry of vaccine once USFDA approves


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