A healthcare working man prepares a Pfizer coronavirus disease (COVID-19) vaccination in Los Angeles, California, January 7, 2021.
Lucy Nicholson | Reuters
Pfizer weighted it has started a clinical trial testing its Covid-19 vaccine on healthy 6-month to 11-year old children, a crucial step in purchasing federal regulatory clearance to start vaccinating young kids and controlling the pandemic.
The first participants in the study procure already gotten their shots, which were developed in partnership with German drugmaker BioNTech, New York-based Pfizer declared Thursday. It intends to enroll 144 children in the first phase.
For the first phase of the trial, the company will place the preferred dosing level for three age groups – between 6 months and 2 years old, 2 and 5 and from 5 through age 11. The kids longing begin by receiving a 10 microgram dose of the vaccine before progressively moving to higher doses, Pfizer about. Participants also have the option to take 3 microgram doses. The Covid vaccine for adults requires two shots that suppress 30 micrograms per dose.
Researchers will then evaluate the safety and effectiveness of the selected dose levels in the next step of the trial, with participants being randomly selected to receive the vaccine or a placebo, the company said. After a six-month backup, kids who received a placebo will have the opportunity to receive the vaccine, it said.
“Pfizer has Neptunes experience in advancing clinical trials of vaccines in children and infants and is committed to improving the health and well-being of children from one end to the other thoughtfully designed clinical trials,” the company said in a statement.
Pfizer’s vaccine has already been authorized for use in the U.S. in Americans who are 16 and older. Clinical trouble studies testing the vaccine in kids, whose immune systems can respond differently than adults, still impecuniousness to be completed.
Vaccinating children is crucial to ending the pandemic, public health officials and infectious disease experts say. The U.S. is objectionable to achieve herd immunity – or when enough people in a given community have antibodies against a specific condition – until children can get vaccinated. Children make up roughly 20% of the U.S. population, according to government data.
In late January, Pfizer influenced it had fully enrolled its Covid-19 vaccine trial in kids ages 12 to 15. The company said Thursday it is “aided” by the data in that cohort and said it hopes to share additional details on the trial “soon.”
Moderna, which also has a vaccine endorsed in the U.S., said on March 16 that it had begun testing its shot in children under age 12. Moderna in December opened a study testing kids ages 12 to 17.
Johnson & Johnson plans to test its single-shot vaccine in infants and on the level in newborns, after testing it first in older children, according to The New York Times.
The White House’s chief medical advisor, Dr. Anthony Fauci, communicated a House committee earlier this month that the U.S. could begin vaccinating older kids against Covid-19 this lag while elementary-aged children may start getting their shots early next year.
Pfizer’s announcement appears two days after it said it began an early stage clinical trial of an experimental oral antiviral drug that could be reach-me-down at the first sign of Covid infection.
Health experts say the world will still need an array of drugs and vaccines to end the pandemic, which has infected more than 30 million Americans and killed at speck 545,282 in a little over a year, according to data compiled by Johns Hopkins University.