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Data shows Covid-19 vaccine safe, protective in kids: Pfizer/BioNTech

By - Ruchika Sharma
Published On 2021-09-21 08:02 GMT   |   Update On 2021-09-21 08:02 GMT
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New Delhi: Pfizer Inc and BioNTech SE said on Monday their Covid-19 vaccine induced a robust immune response in 5 to 11 year olds, and they plan to ask for authorization to use the vaccine in children in that age range in the United States, Europe and elsewhere as soon as possible.

The companies said the vaccine generated an immune response in the 5-to-11 year olds in their Phase II/III clinical trial that matched what they had previously observed in 16-to-25 year olds. The safety profile was also generally comparable to the older age group, they said.
"Since July, pediatric cases of Covid-19 have risen by about 240 percent in the US – underscoring the public health need for vaccination," Pfizer Chief Executive Albert Bourla said in a news release.
"These trial results provide a strong foundation for seeking authorization of our vaccine for children 5 to 11 years old, and we plan to submit them to the FDA and other regulators with urgency."
Top US health officials believe regulators could make a decision on whether the shot is safe and effective in younger children within three weeks of the companies submitting a request for authorization, two sources told Reuters earlier this month.
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Covid-19 hospitalizations and deaths have surged in the United States in recent months due to the highly contagious Delta variant. Pediatric cases are also up, particularly as children under 12 are all unvaccinated, but there is no indication that, beyond being more transmissive, the Delta virus is more dangerous in kids.
A rapid authorization could help mitigate a potential surge of cases in the fall, especially with schools already open nationwide.
The companies' vaccine, called Comirnaty, is already authorized for use in children as young as 12 in many countries, including the United States. The vaccine was originally authorized for emerenecy use in people 16 or older in the United States in December 2020 and received full US approval in that age group last month.
The 5-to-11 year olds were given two shots of a 10-microgram dose of the vaccine, one-third the dose size that has been given to people 12 and older. The companies expect data on how well the vaccine works in children 2-to-5 years of age and children 6 months-to-2 years of age as soon as the fourth quarter of this year.
Unlike the larger clinical trial the drugmakers previously conducted in adults, the 2,268 participant pediatric trial was not primarily designed to measure the vaccine's efficacy by comparing the number of Covid-19 cases in vaccine recipients to those who received a placebo.
Instead, the trial compares the amount of neutralizing antibodies induced by the vaccine in the children to the response of older recipients in the adult trial.
A Pfizer spokesperson said the companies may later disclose vaccine efficacy from the trial but there had not been enough cases of Covid-19 yet among the participants to make that determination.
The vaccine was around 95 percent effective in the adult clinical trial, but Pfizer has said that immunity wanes some months after the second dose. US regulators are expected to authorize a third, booster dose of the vaccine for older and high-risk Americans early this week.
The companies said the vaccine was well-tolerated, with side effects generally comparable to those observed in participants 16 to 25 years of age.
Both the Pfizer and Moderna vaccines have been linked by regulators to rare cases of heart inflammation in adolescents and young adults, particularly young men. Pfizer said they did not see any instances of heart inflammation in the trial participants.



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Article Source : Reuters

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Ruchika Sharma

Ruchika Sharma joined Medical Dialogue as an Correspondent for the Business Section in 2019. She covers all the updates in the Pharmaceutical field, Policy, Insurance, Business Healthcare, Medical News, Health News, Pharma News, Healthcare and Investment. She has completed her B.Com from Delhi University and then pursued postgraduation in M.Com. She can be contacted at editorial@medicaldialogues.in Contact no. 011-43720751

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