HomeNewsBusinessCovaxin proven safe for children of 2-18 years age group in phase III study: Bharat Biotech

Covaxin proven safe for children of 2-18 years age group in phase III study: Bharat Biotech

In a phase II/III research, Bharat Biotech International Ltd's COVID-19 vaccine Covaxin was found to be safe, well-tolerated, and highly immunogenic in children and adolescents aged 2 to 18 years.

June 17, 2022 / 15:15 IST
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Representative image
Representative image

Bharat Biotech International Ltd on Friday said its COVID-19 vaccine Covaxin has proven to be safe, well-tolerated and highly immunogenic in children and adolescents of 2-18 years age group in phase II/III study. The company conducted phase II/III, open-label, and multicentre study to evaluate the safety, reactogenicity and immunogenicity of Covaxin in healthy children and adolescents in the 2-18 years of age group between June 2021 to September 2021, Bharat Biotech International Ltd (BBIL) said in a statement.

"The study has been accepted and published in Lancet Infectious diseases, peer-reviewed high impact factor journal," the company said. The clinical trial conducted in the pediatric population has shown safety, less reactogenic, and robust immunogenicity. The data was submitted to the Central Drugs Standard Control Organisation (CDSCO) in October 2021, and received a nod for emergency use in children aged 6-18 years, it added. The clinical trial conducted in the pediatric population has shown safety, less reactogenic, and robust immunogenicity.

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"Safety of the vaccine is critical for children and we are glad to share that Covaxin has now proven data for safety and immunogenicity in children. "We have now achieved our goal of developing a safe and efficacious COVID-19 vaccine for adults and children for primary immunisation and booster doses, making Covaxin a universal vaccine. It has proven to be a highly safe vaccine based on data from more than 50 million doses administered to children in India," Bharat Biotech Chairman and MD Krishna Ella said.

Bharat Biotech said in the study, no serious adverse event was reported. A total of 374 adverse events were reported, and the majority of adverse events were mild in nature and resolved within one day. Pain at the injection site was the most commonly reported adverse event. The company claimed that it has a stockpile of more than 50 million doses of Covaxin ready to be distributed as required.

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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