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Tags: Coronavirus | Money | Vaccines | COVID-19 vaccine | booster shot | Pfizer | BioNTech

COVID-19 Booster Debate Moves to FDA Vaccine Advisory Committee

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FDA meets Friday to decide if Americans will be required to get a COVID-19 booster from Pfizer/BioNTech. (AP)

Friday, 17 September 2021 07:06 AM

The debate over whether Americans should receive a booster dose of the Pfizer/BioNTech COVID-19 vaccine moves to a panel of independent expert advisers to the U.S. Food and Drug Administration on Friday.

While U.S. health officials, some other countries and vaccine makers have said boosters are needed, many scientists and vaccine experts disagree.

The FDA staff said in documents prepared for the committee this week that the vaccine Pfizer Inc developed with Germany's BioNTech SE is still very effective at preventing severe illness and death and that the evidence is mixed on whether its efficacy declines over time.

Pfizer, which is arguing for broad use of a third shot, submitted data from an analysis of over 300 participants in its late stage clinical trial showing that the vaccine's efficacy diminished by around 6% every two months after the second dose, and that an additional shot boosted immunity.

The FDA's Vaccines and Related Biological Products Advisory Committee will also consider data from Israel, which has been administering booster doses of the Pfizer/BioNTech vaccine.

The effectiveness of the second dose of the vaccine waned six months after administration, making a booster necessary, Israeli health officials had said.

It began offering a COVID-19 booster to people as young as age 12 last month, expanding a campaign that began in July for people over 60. A new analysis by Israeli scientists published on Wednesday in the New England Journal of Medicine found that among 1.1 million people age 60 or older who had been fully vaccinated at least 5 months earlier, those who received a booster were less likely to be infected or become severely ill than those who did not get the third shot.

The booster debate gained urgency as U.S. COVID-19 hospitalizations and deaths surged due to the highly transmissible Delta variant of the virus, mostly among the unvaccinated. But infections among fully vaccinated people have risen and they can spread the virus on occasion, mostly to unvaccinated people.

Recent polls have shown most vaccinated Americans want a booster to enhance their protection.

'LARGER POPULATIONS MAY TAKE LONGER'

Wall Street analysts see the additional shots ultimately getting approved for a broad population.

"We expect a potential positive FDA support for boosters for elderly ahead of Biden's rollout, but larger populations may take longer for broad support and approval," Jefferies analyst Michael Yee said in an email.

Scientists say the strongest evidence for boosters is for older adults and other high risk populations.

"My guess is we are going to end up with a recommendation for booster doses for a certain subpopulation, such as adults older than 65," said Bill Moss, executive director of the International Vaccine Access Center at the Johns Hopkins Bloomberg School of Public Health.

More than 1.9 million Americans have already gotten a booster dose after the government authorized them for people with compromised immune systems, according to the U.S. Centers for Disease Control and Prevention (CDC).

Eight top health officials in the Biden Administration - including the heads of the FDA and the CDC - said in August they believe booster shots will be needed because emerging data shows that protection against COVID-19 decreases over time.

It is planning a booster campaign for the week of Sept. 20, contingent on backing by the FDA and CDC.

An FDA decision on a booster will come after the committee recommendation. Advisers to CDC will meet next Wednesday and Thursday after which the agency's director, Rochelle Walensky, will decide whether to follow their advice.

Moderna Inc has also asked for approval of a booster and released data on Wednesday showing that protection from its vaccine also wanes over time. That is not expected to be discussed at Friday's meeting.

© 2021 Thomson/Reuters. All rights reserved.


StreetTalk
The debate over whether Americans should receive a booster dose of the Pfizer/BioNTech COVID-19 vaccine moves to a panel of independent expert advisers to the U.S. Food and Drug Administration on Friday.
COVID-19 vaccine, booster shot, Pfizer, BioNTech, Food and Drug Administration, Biden administration
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2021-06-17
Friday, 17 September 2021 07:06 AM
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