FDA Wants mRNA Vaccines Tested in More Kids

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FDA has asked Pfizer/BioNTech and Moderna to expand their trials of Covid vaccines to include several thousand school children before they seek final emergency use authorization for their vaccines. The Washington Post reports the changes to ongoing pediatric trials could delay the availability of the vaccines for children ages 5 to 11 beyond the hoped-for timeline of early fall, although it is unclear how much of a delay there could be.

The expanded testing is intended to assess whether a rare inflammation of the heart muscle that has been seen in young adults shortly after vaccination is more common in younger age groups.

An anonymous federal official told the Post that authorization of a vaccine for children ages 5-11 could come by late October or early November.

A Moderna spokesperson said the company is consulting with FDA on a proposal to expand its trial but had not settled on final numbers.

The article says FDA is likely to require two months of follow-up data for the 5-11 age group, as it did for adolescents and adults. For children under age five, it says, 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.

 

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