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(CNN) – The Pfizer vaccine trial has reached its safety milestone and the company is preparing to apply for an emergency use authorization, Pfizer CEO Albert Bourla said Tuesday.
Pfizer announced on November 9 that its coronavirus vaccine appears to be over 90% effective, based on early data.
But the company still didn’t have enough data to apply for emergency use authorization from the U.S. Food and Drug Administration, which said it wanted at least two months of safety data on at least half of the volunteers. of a vaccine trial from the date they obtained the second immunization.
“I think safety questions in general have also been answered,” Bourla said in an interview with The New York Times. “Our safety milestone has already been reached and we are now preparing for presentations.”
Bourla said they are still unsure how long their vaccine protection will last. The Pfizer vaccine uses a messenger RNA or mRNA platform to produce an immune response.
“With mRNA technology, you can boost as soon as you want,” Bourla said. People can be given an extra dose of a vaccine once immunity wears off, known as a booster.
Bourla said a booster, if necessary, would likely only require one dose.
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