FDA has authorized Pfizer - BioNTech COVID-19 vaccine for emergency use in adolescents
The FDA ( U.S. Food and Drug Administration ) has expanded the emergency use authorization ( EUA ) for the Pfizer-BioNTech COVID-19 Vaccine for the prevention of coronavirus disease 2019 ( COVID-19 ) caused by SARS-CoV-2 to include adolescents 12 through 15 years of age.
The FDA amended the EUA originally issued on Dec. 11, 2020 for administration in individuals 16 years of age and older.
From March 1, 2020 through April 30, 2021, approximately 1.5 million COVID-19 cases in individuals 11 to 17 years of age have been reported to the Centers for Disease Control and Prevention ( CDC ).
Children and adolescents generally have a milder COVID-19 disease course as compared to adults.
The Pfizer-BioNTech COVID-19 Vaccine is administered as a series of two doses, three weeks apart, the same dosage and dosing regimen for 16 years of age and older.
The FDA has determined that Pfizer-BioNTech COVID-19 Vaccine has met the statutory criteria to amend the EUA, and that the known and potential benefits of this vaccine in individuals 12 years of age and older outweigh the known and potential risks, supporting the vaccine’s use in this population.
The issuance of an EUA is not an FDA approval ( licensure ) of a vaccine. The EUA will be effective until the declaration that circumstances exist justifying the authorization of the emergency use of drugs and biologics for prevention and treatment of COVID-19 is terminated, and may be revised or revoked if it is determined the EUA no longer meets the statutory criteria for issuance or to protect public health or safety.
The available safety data to support the EUA in adolescents down to 12 years of age, include 2,260 participants ages 12 through 15 years old enrolled in an ongoing randomized, placebo-controlled clinical trial in the United States. Of these, 1,131 adolescent participants received the vaccine and 1,129 received a saline placebo.
More than half of the participants were followed for safety for at least two months following the second dose.
The most commonly reported side effects in the adolescent clinical trial participants, which typically lasted 1-3 days, were pain at the injection site, tiredness, headache, chills, muscle pain, fever and joint pain.
With the exception of pain at the injection site, more adolescents reported these side effects after the second dose than after the first dose, so it is important for vaccination providers and recipients to expect that there may be some side effects after either dose, but even more so after the second dose.
The side effects in adolescents were consistent with those reported in clinical trial participants 16 years of age and older.
It is important to note that as a general matter, while some individuals experience side effects following any vaccination, not every individual’s experience will be the same and some people may not experience side effects.
The Pfizer-BioNTech COVID-19 Vaccine should not be given to anyone with a known history of a severe allergic reaction, including anaphylaxis to any component of the vaccine.
Since its authorization for emergency use, rare severe allergic reactions, including anaphylaxis, have been reported following administration of the Pfizer-BioNTech COVID-19 Vaccine in some recipients.
The effectiveness data to support the EUA in adolescents down to 12 years of age is based on immunogenicity and an analysis of COVID-19 cases.
The immune response to the vaccine in 190 participants, 12 through 15 years of age, was compared to the immune response of 170 participants, 16 through 25 years of age.
In this analysis, the immune response of adolescents was non-inferior to ( at least as good as ) the immune response of the older participants.
An analysis of cases of COVID-19 occurring among participants, 12 through 15 years of age, seven days after the second dose was also conducted. In this analysis, among participants without evidence of prior infection with SARS-CoV-2, no cases of COVID-19 occurred among 1,005 vaccine recipients and 16 cases of COVID-19 occurred among 978 placebo recipients; the vaccine was 100% effective in preventing COVID-19.
At this time, there are limited data to address whether the vaccine can prevent transmission of the virus from person to person.
In addition, at this time, data are not available to determine how long the vaccine will provide protection.
As part of the original EUA request, Pfizer submitted a plan to continue monitoring the safety of the vaccine as it is used under EUA. This plan has been updated to include the newly authorized adolescent population, and includes longer-term safety follow-up for participants enrolled in ongoing clinical trials, as well as other activities aimed at monitoring the safety of the Pfizer-BioNTech COVID-19 vaccine and ensuring that any safety concerns are identified and evaluated in a timely manner. ( Xagena )
Source: FDA, 2021
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