The US Food and Drug Administration (FDA) has asked Pfizer and Moderna to expand their clinical trial size on COVID-19 vaccines to include several thousand school-aged children before seeking authorization.
The US Food and Drug Administration (FDA) has asked Pfizer and Moderna to expand their clinical trial size on COVID-19 vaccines to include several thousand school-aged children before seeking authorization. The move will help identify any potential safety signals.
‘The FDA is also likely to require two months of follow-up data for the 5-to-11 age group, as it did for adults and adolescents. For children under 5, the agency might require four to six months of follow-up data, meaning vaccines are unlikely to be available for several months for infants and young children.’
The increase in trial size will also help assess whether a rare inflammation of the heart muscle, seen in young adults shortly after vaccination, is common in younger age groups, the Washington Post reported. US President Joe Biden, at a CNN town hall meeting last week, said that children under 12 might have access to a vaccine "soon".
Currently, none of the three Covid-19 vaccines used in the US is available to children under the age of 12. Pfizer, Moderna, and Johnson and Johnson are still conducting clinical trials to evaluate the safety and efficacy of the vaccines in children under 12.
While results of Moderna and Pfizer vaccines for children aged 5 to 11 were expected in September, these changes may delay the availability of the vaccines, the report said.
Authorisation of a Covid vaccine in children aged 5-11 may come by late October or early November, the Post quoted a federal official, who spoke on the condition of anonymity.
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He also predicted that the authorisation may happen in "winter 2021/early 2022".
On the other hand, Pfizer hasn't yet made any updates to its trial design or its timeline, according to Jerica Pitts, a spokeswoman for Pfizer.
The company had originally planned to report results in September for children ages 5 to 11, with results for children ages 2 to 5 expected to follow shortly and for children as young as 6 months in October or November.
Source-IANS