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Based on Pfizer, the Covid vaccine examine is totally enrolled for kids ages 12-15

Walgreens pharmacist Jessica Sahni will be holding the vaccine against Pfizer BioNTech coronavirus disease (COVID-19) at the New Jewish Home in New York on December 21, 2020.

Yuki Iwamura | Reuters

Pfizer said it had fully enrolled its Covid-19 vaccine study in children ages 12-15, an important step before the vaccine could be used in that age group.

The study, an extension of the study used to support the company’s emergency approval for the vaccine in people aged 16 and older, enrolled 2,259 children between the ages of 12 and 15, Pfizer told CNBC on Friday. The entry on a government clinical trial website has been updated to determine that subjects are no longer being recruited.

The vaccine developed with German partner BioNTech was approved in December for people aged 16 and over. Studies in younger age groups are needed to ensure the correct dose as well as safety and effectiveness in these different groups, said Dr. Evan Anderson, a pediatrician at Emory University School of Medicine.

“I am very uncomfortable sending my children back to school where, despite the school’s best efforts, there is a real risk of getting Covid-19,” Anderson told CNBC in October.

While children are less affected by Covid-19 than adults, they still catch the virus and get sick. Some even died. According to a report from the American Academy of Pediatrics and the Children’s Hospital Association, more than 2.5 million cases of Covid-19 in children were reported on Jan. 14, about 13% of all cases.

“Children can still get sick and die from Covid-19,” said Dr. Paul Offit, director of the Vaccine Education Center and an infectious disease doctor at Philadelphia Children’s Hospital. “In the past year, as many children died of Covid-19 as of influenza. And we recommend an influenza vaccine for children.”

Offit also pointed out that children can suffer from a disease related to Covid-19 called multisystem inflammatory syndrome, “which can be debilitating”.

According to the Centers for Disease Control and Prevention, as of Jan. 8, there were 1,659 cases of the syndrome in children known as MIS-C and 26 related deaths. According to CDC data, there were a total of 78 deaths from Covid-19 in children under 4 years of age and 178 in children between the ages of 5 and 17, although those numbers don’t explain all deaths from the United States

Children compete for class at PS 361 on the first day of returning to class during the coronavirus disease (COVID-19) pandemic in the Manhattan neighborhood of New York City, New York, United States, on December 7, 2020.

Carlo Allegri | Reuters

Pfizer declined to say when it expected results from the study, which would depend on the observed infection rate, to compare the rates in the placebo group with those who received the vaccine. With infection rates higher in the US since the fall – the 7-day average of daily cases is now 187,500, according to a CNBC analysis of the Johns Hopkins University data – vaccine effectiveness studies have shown their readings have sped up.

However, enrollment for adolescent studies has been slower than hoped, at least for Moderna’s study in children ages 12-17, Moncef Slaoui, chief advisor to Operation Warp Speed, the Trump administration’s vaccine effort, said at their last meeting on Dec. January.

By then, around 800 children had been included in the study for over a month, of which around 3,000 were needed. Moderna’s vaccine was approved in December, weeks after the study began in adolescents, for people aged 18 and over. Pfizer lowered the age of his trial to 12 years in October.

“While enrollment was lower during the holiday season, we expect an increase as planned for the planned New Year,” said Moderna spokeswoman Colleen Hussey on Friday. “We are on track to provide updated data by mid-2021.”

AstraZeneca, whose vaccine developed by Oxford University is in late-stage trials in the US and approved in the UK, told CNBC Friday that it plans to continue UK trials in a new protocol for children ages 5-18 from the coming months. “”

Johnson & Johnson, whose results are expected in the third phase in adults, said it was in talks with regulators about including pediatric populations in its development plan. The same technology used for the Covid-19 vaccine was found to have been used in vaccines given to more than 200,000 people, including people over 65, infants, children, HIV-positive adults, and pregnant women.

Typically, vaccine trials are conducted in younger age groups after they have been shown to be safe and effective in older groups, and Covid-19 vaccine manufacturers have stated that they will follow that plan here too.

Moderna’s executive director Stephane Bancel said this month the company is unlikely to have data on children ages 11 and younger who would include a lower dose before next year. He anticipates that data for children 12 years and older may be available before September.

U.S. public health officials such as White House Chief Medical Officer Dr. Anthony Fauci, said they hope that by the fall of 75% to 80% of the US population could be vaccinated so life can return to some form of normal.

About 78% of the US population, or 255 million people, are over 18 years old, according to a CNBC analysis of the census data. Another 25 million people are between 12 and 17 years old.

Fauci did not immediately respond to a query about whether child involvement in vaccinations is necessary to meet his goal of 75% to 80% coverage.

“It is important that all children are vaccinated, and manufacturers cannot conduct these trials fast enough,” Angela Rasmussen, virologist and affiliate at the Georgetown Center for Global Health Science and Safety, told CNBC on Friday. “The more people of all ages are vaccinated, the better.”

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