WASHINGTON
(AP) — President Donald Trump on Sunday announced emergency
authorization to treat COVID-19 patients with convalescent plasma — a
move he called “a breakthrough,” one of his top health officials called
“promising” and other health experts said needs more study before it’s
celebrated.
The
announcement came after White House officials complained there were
politically motivated delays by the Food and Drug Administration in
approving a vaccine and therapeutics for the disease that has upended
Trump’s reelection chances.
On
the eve of the Republican National Convention, Trump put himself at the
center of the FDA’s announcement of the authorization at a news
conference Sunday evening. The authorization makes it easier for some
patients to obtain the treatment but is not the same as full FDA
approval.
The
blood plasma, taken from patients who have recovered from the
coronavirus and rich in antibodies, may provide benefits to those
battling the disease. But the evidence so far has not been conclusive
about whether it works, when to administer it and what dose is needed.
In
a letter describing the emergency authorization, the chief scientist
for the FDA, Denise Hinton, said: “COVID-19 convalescent plasma should
not be considered a new standard of care for the treatment of patients
with COVID-19. Additional data will be forthcoming from other analyses
and ongoing, well-controlled clinical trials in the coming months.”
But
Trump had made clear to aides that he was eager to showcase good news
in the battle against the virus, and the timing allowed him to head into
his convention with momentum. He and aides billed it as a “major”
development and used the White House briefing room to make the
announcement.
Trump
also displayed some rare discipline in the evening news conference,
sticking to his talking points, deferring to the head of the FDA,
Stephen Hahn, and only taking three questions from reporters.
The
White House had grown agitated with the pace of the plasma approval.
The accusations of an FDA slowdown, which were presented without
evidence, were just the latest assault from Trump’s team on what he
refers to as the “deep state” bureaucracy. White House chief of staff
Mark Meadows did not deal in specifics, but said that “we’ve looked at a
number of people that are not being as diligent as they should be in
terms of getting to the bottom of it.”
“This
president is about cutting red tape,” Meadows said in an interview
Sunday on “This Week” on ABC. “He had to make sure that they felt the
heat. If they don’t see the light, they need to feel the heat because
the American people are suffering.”
During
Sunday’s 18-minute press conference, Trump said he thought there had
been a “logjam” at the FDA over granting the emergency authorization. He
alleged there are people at the FDA “that can see things being held up
... and that’s for political reasons.”
Dr. Joshua Sharfstein said the statement, and Hahn’s silence while Trump said it, “was disgraceful.”
“The
FDA commissioner basically allowed the president to mischaracterize the
decision and attack the integrity of FDA employees. I was horrified,”
said Sharfstein, a vice dean at John Hopkins University’s school of
public health who was a top FDA official during the Obama
administration.
“This is a promising therapy that has not been fully established,” he said
The
push on Sunday came a day after Trump tweeted sharp criticism on the
process to treat the virus, which has killed more than 175,000 Americans
and imperiled his reelection chances. The White House has sunk vast
resources into an expedited process to develop a vaccine, and Trump
aides have been banking on it being an “October surprise” that could
help the president make up ground in the polls.
“The
deep state, or whoever, over at the FDA is making it very difficult for
drug companies to get people in order to test the vaccines and
therapeutics,” Trump tweeted. “Obviously, they are hoping to delay the
answer until after November 3rd. Must focus on speed, and saving lives!”
Earlier
this month, Mayo Clinic researchers reported a strong hint that blood
plasma from COVID-19 survivors helps other infected patients recover.
But it wasn’t considered proof.
More
than 70,000 patients in the U.S. have been given convalescent plasma, a
century-old approach to fend off flu and measles before vaccines. It’s a
go-to tactic when new diseases come along, and history suggests it
works against some, but not all, infections.
The
Mayo Clinic reported preliminary data from 35,000 coronavirus patients
treated with plasma, and said there were fewer deaths among people given
plasma within three days of diagnosis, and also among those given
plasma containing the highest levels of virus-fighting antibodies.
But
it wasn’t a formal study. The patients were treated in different ways
in hospitals around the country as part of an FDA program designed to
speed access to the experimental therapy. That “expanded access” program
tracks what happens to the recipients, but it cannot prove the plasma —
and not other care they received — was the real reason for improvement.
Administration
officials, in a call with reporters Sunday, discussed a benefit for
patients who were within three days of admission to a hospital and were
not on a respirator, and were given ‘high-titer’ convalescent plasma
containing higher concentrations of antibodies. They were then compared
to similar patients who were given lower-titer plasma. The findings
suggest deaths were 35% lower in the high-titer group.
There’s
been little data on how effective it is or whether it must be
administered fairly early in an illness to make a significant
difference, said Dr. William Schaffner, an infectious diseases expert at
Vanderbilt University.
Aiming
to ward off a possible a run on convalescent plasma after the
announcement, government officials have been working to obtain plasma
and to team with corporate partners and nonprofit organizations to
generate interest among previously infected patients to donate.
Hahn,
who called the development “promising,” said Trump did not speak to him
about the timing of the announcement. He said “this has been in the
works for several weeks.”
But
some health experts were skeptical. Benjamin Corb, of the American
Society for Biochemistry and Molecular Biology, called it “conspicuous
timing.”
“President
Trump is once again putting his political goals ahead of the health and
well-being of the American public,” Corb said.
Rigorous
studies are under way around the country, comparing similar patients
randomly assigned to get plasma or a dummy infusion in addition to
regular care. But those studies have been difficult to finish as the
virus waxes and wanes in different cities. Also, some patients have
requested plasma rather than agreeing to a study that might give them a
placebo instead.
Former FDA commissioner Dr. Scott Gottlieb dismissed the suggestion of a slowdown.
“I
firmly reject the idea they would slow-walk anything or accelerate
anything based on any political consideration or any consideration other
than what is best for the public health and a real sense of mission to
patients,” Gottlieb told CBS’s “Face the Nation.”
Trump,
in news conferences, “has made all kinds of therapeutic suggestions”
that have not proven to be supported by science — and are even
dangerous, Schaffner said. That includes statements about the possible
value of treating COVID-19 patients with ultraviolet light and
disinfectant. Trump reportedly also recently became enthusiastic about
oleandrin, a plant extract derived from a toxic shrub that scientists
immediately warned against.
But
the president is perhaps best known for his early and ardent embrace of
the malaria drugs hydroxychloroquine and chloroquine.
Earlier
this month, Hahn emphasized that routine evaluation procedures will
remain in place to evaluate COVID vaccine candidates.
“I
think this administration has put more pressure on the Food and Drug
Administration than I can remember” ever happening in the past,
Schaffner said.
“Everybody is just a little bit nervous,” he said.
___
Stobbe reported from New York.
No comments:
Post a Comment