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Govt panel seeks additional data from SII, says Covovax not yet been approved in country of origin

The Serum Institute of India (SII) had put in an application to the Drugs Controller General of India (DCGI) in October for grant of market authorisation of Covovax for restricted use in emergency situations.

November 28, 2021 / 11:32 AM IST
Source: AP

Source: AP

An expert panel of India’s Central Drug Authority, which recently reviewed Serum Institute’s application seeking emergency authorisation of COVID-19 vaccine Covovax, has sought additional data from the firm, while noting the jab has not yet been approved in the country of origin, official sources said.

The Serum Institute of India (SII) had put in an application to the Drugs Controller General of India (DCGI) in October for grant of market authorisation of Covovax for restricted use in emergency situations. The Pune-based firm had submitted interim safety and immunogenicity data of phase 2/3 bridging clinical trials conducted in the country as well as interim clinical trial data of safety and efficacy from phase 3 clinical trials conducted in the UK and the US along with its application, official sources said.

”The Subject Expert Committee (SEC) on COVID-19 of the Central Drugs Standard Control Organisation (CDSCO), which deliberated on the application on November 24, noted that the vaccine is technology transfer of Novavax vaccine and is not yet approved in the country of origin,” a source said.

After detailed deliberation, the committee recommended that the firm should submit additional data and information.

It has sought correct status of the phase 3 clinical trials in USA and UK along with up to date on the safety, efficacy and immunogenicity, comparative statement of immunogenicity parameters of the subjects from the US, UK and other overseas phase 3 studies with data from phase 3 study in India, besides review status of the application with regulatory authorities of the US and the UK, the source said.

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COVID-19 Vaccine

Frequently Asked Questions

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How does a vaccine work?

A vaccine works by mimicking a natural infection. A vaccine not only induces immune response to protect people from any future COVID-19 infection, but also helps quickly build herd immunity to put an end to the pandemic. Herd immunity occurs when a sufficient percentage of a population becomes immune to a disease, making the spread of disease from person to person unlikely. The good news is that SARS-CoV-2 virus has been fairly stable, which increases the viability of a vaccine.

How many types of vaccines are there?

There are broadly four types of vaccine — one, a vaccine based on the whole virus (this could be either inactivated, or an attenuated [weakened] virus vaccine); two, a non-replicating viral vector vaccine that uses a benign virus as vector that carries the antigen of SARS-CoV; three, nucleic-acid vaccines that have genetic material like DNA and RNA of antigens like spike protein given to a person, helping human cells decode genetic material and produce the vaccine; and four, protein subunit vaccine wherein the recombinant proteins of SARS-COV-2 along with an adjuvant (booster) is given as a vaccine.

What does it take to develop a vaccine of this kind?

Vaccine development is a long, complex process. Unlike drugs that are given to people with a diseased, vaccines are given to healthy people and also vulnerable sections such as children, pregnant women and the elderly. So rigorous tests are compulsory. History says that the fastest time it took to develop a vaccine is five years, but it usually takes double or sometimes triple that time.

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The government recently permitted the export of two crore doses of COVID-19 vaccine Covovax to Indonesia, produced in India by the SII, as the jab has not yet been approved for emergency use in the country, official sources had said.

The DCGI office had granted SII permission to manufacture and stock Covovax on May 17. Based on the DCGI’s approval, till now, the Pune-based firm has manufactured and stockpiled vaccine doses, they said.

In August 2020, US-based vaccine maker Novavax, Inc had announced a licence agreement with SII for the development and commercialisation of NVX-CoV2373, its COVID-19 vaccine candidate, in low and middle-income countries and India.
PTI
first published: Nov 28, 2021 11:32 am
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