Pfizer seeks U.S. use of COVID-19 vaccine

Pfizer formally asked U.S. regulators Friday to allow emergency use of its COVID-19 vaccine, starting the clock on a process that could bring limited first shots as early as next month and eventually an end to the pandemic — but not until after a long, hard winter.

The action comes days after Pfizer Inc. and its German partner BioNTech announced that its vaccine appears 95 percent effective at preventing mild to severe COVID-19 disease in a large, ongoing study.

The companies said that protection plus a good safety record means the vaccine should qualify for emergency use authorization, something the Food and Drug Administration can grant before the final testing is fully complete. In addition to the FDA submission, they have already started “rolling” applications in Europe and the U.K. and intend to submit similar information soon.

With the coronavirus surging around the U.S. and the world, the pressure is on for regulators to make a speedy decision.

“Help is on the way,” Dr. Anthony Fauci, the top U.S. infectious disease expert said on the eve of Pfizer’s announcement, adding that it’s too early to abandon masks and other protective measures. “We need to actually double down on the public health measures aswe’rewaiting for that help to come.”

Friday’s filing sets off a chain of events as the FDA and its independent advisers debate if the shots are ready. If so, still another government group will have to decide how the initial limited supplies are rationed out to anxiously awaiting Americans.

Howmuch vaccine is available and when is a moving target, but initial supplies will be scarce and rationed.

Globally, Pfizer has estimated it could have 50 million doses available by year’s end.

About 25 million may become available for U.S. use in December, 30 million in January and 35 million more in February and March, according to information presented to the National AcademyofMedicine thisweek. Recipients will need two doses, three weeks apart. The U.S. government has a contract to buy millions of Pfizer-BioNTech doses, as well as other candidates than pan out, and has promised shots will be free.

Not far behind is competitor Moderna Inc.’s COVID-19 vaccine. Its early data suggests the shots are as strong as Pfizer’s, and that company expects to also seek emergency authorization within weeks.

The public’s first chance to see how strong the evidence really is will come Dec. 10 at a public meeting of the FDA’s scientific advisers.

If there’s an emergency green light, “that vaccine is still deemed investigational. It’s not approved yet,” Dr. Marion Gruber, chief of FDA’s vaccine office, told the National Academy of Medicine this week.

Thatmeans anyone offered an emergency vaccination must get a “fact sheet” describing potential benefits and risks before going through with the shot, she said.

Another government group — advisers to the Centers for Disease Control and Prevention — decides who is first in line for scarce doses.

Health and Human Services Secretary Alex Azar said he hopes that decision can bemade at the same time as FDA’s.

The Trump administration’s Operation Warp Speed has worked with states to line up how many doses they’d need to cover the populations offered vaccine first.

Pfizer will ship those supplies as ordered by the states — only after FDA gives the OK.

Company projections of how much it will ship each month are just predictions, Baylor warned.

“It’s not like a pizza,” he said. Manufacturing is so complex that “you don’t necessarily end up with what you thought.”