<p>Bharat Biotech has sought permission from India's drug regulator to conduct a phase 2/3 study of its Covid vaccine Covaxin as a booster dose among those aged two to 18 years, sources told PTI.</p>.<p>Presently, precaution dose of Covaxin and Covishield is administered to all those aged above 18 who have completed nine months after the second dose.</p>.<p>"The Hyderabad-based firm had on April 29 submitted an application to DCGI seeking permission to conduct phase 2/3 trial to evaluate the safety, reactogenicity and immunogenicity of Covaxin as a booster dose in healthy volunteers aged 2 to 18 years," a source in the know of the developments told <em>PTI</em>.</p>.<p><strong>Also Read | <a href="https://www.deccanherald.com/national/corbevax-vs-covovax-covid-19-jabs-for-those-under-18-years-which-one-to-choose-1105263.html" target="_blank">Corbevax vs Covovax Covid-19 jabs for those under 18 years: Which one to choose?</a></strong></p>.<p>The study is likely to be conducted at six sites, including AIIMS Delhi and Patna.</p>.<p>India began administering precaution doses of vaccines to the healthcare and frontline workers and those aged 60 and above with comorbidities on January 10 this year. </p>.<p>The comorbidity clause was removed in March making all people aged above 60 eligible for the precaution dose of Covid vaccine.</p>.<p>India expanded the ambit of the precaution doses of COVID-19 vaccines and on April 10 began administering the jabs to all aged above 18 years at private vaccination centres.</p>
<p>Bharat Biotech has sought permission from India's drug regulator to conduct a phase 2/3 study of its Covid vaccine Covaxin as a booster dose among those aged two to 18 years, sources told PTI.</p>.<p>Presently, precaution dose of Covaxin and Covishield is administered to all those aged above 18 who have completed nine months after the second dose.</p>.<p>"The Hyderabad-based firm had on April 29 submitted an application to DCGI seeking permission to conduct phase 2/3 trial to evaluate the safety, reactogenicity and immunogenicity of Covaxin as a booster dose in healthy volunteers aged 2 to 18 years," a source in the know of the developments told <em>PTI</em>.</p>.<p><strong>Also Read | <a href="https://www.deccanherald.com/national/corbevax-vs-covovax-covid-19-jabs-for-those-under-18-years-which-one-to-choose-1105263.html" target="_blank">Corbevax vs Covovax Covid-19 jabs for those under 18 years: Which one to choose?</a></strong></p>.<p>The study is likely to be conducted at six sites, including AIIMS Delhi and Patna.</p>.<p>India began administering precaution doses of vaccines to the healthcare and frontline workers and those aged 60 and above with comorbidities on January 10 this year. </p>.<p>The comorbidity clause was removed in March making all people aged above 60 eligible for the precaution dose of Covid vaccine.</p>.<p>India expanded the ambit of the precaution doses of COVID-19 vaccines and on April 10 began administering the jabs to all aged above 18 years at private vaccination centres.</p>