From the CBC:
“Health
Canada approves AstraZeneca's COVID-19 vaccine”
After a
months-long review, Health Canada regulators today approved the COVID-19
vaccine from Oxford University-AstraZeneca for use in Canada — clearing the way
for millions more inoculations in the months ahead. The department's regulators
concluded the shot has an efficacy rate of 62 per cent and have authorized it
for use in all adults 18 and older. While it's less effective than the
Pfizer-BioNTech and Moderna vaccines at preventing infection, the shot is 100
per cent effective in preventing the severe outcomes of COVID-19 — including
serious illness, hospitalizations and death — the regulators said. "Overall,
there are no important safety concerns, and the vaccine was well tolerated by
participants," the decision reads.
Canada has
secured access to 22 million doses of the AstraZeneca vaccine, most of which
are slated to arrive between April and September. Public Services and
Procurement Minister Anita Anand has said the government is trying to negotiate
faster delivery of these doses now that new, more contagious COVID-19 variants
are taking hold in Canada. Health Canada also has authorized the vaccine
manufactured by the Serum Institute, which has partnered with AstraZeneca to
make that company's COVID-19 product at its facilities in India. That version,
which is biologically identical to the AstraZeneca shot but is manufactured
under different conditions, has been branded "Covishield."
The Serum
Institute, which is working with Mississauga, Ont.-based Verity
Pharmaceuticals, will deliver 500,000 doses of its vaccine next Wednesday, the
company told CBC News. A further 1 million doses will arrive in April and
500,000 more in early May. With these new doses, Canada now stands to receive
about 6.5 million doses of the AstraZeneca, Moderna and Pfizer vaccines by the
end of March. That's enough to fully vaccinate just over 3.2 million people. "This
is very encouraging news. It means more people vaccinated, and sooner. Because
for AstraZeneca, just like we were for Pfizer and Moderna, we are ready to get
doses rolling," Prime Minister Justin Trudeau said. "Vaccines will
keep arriving faster and faster as we head into the spring." Anand told
reporters her department "will leave no stone unturned" in its quest
to bring more doses into Canada "as quickly as possible." She said
the government has received "positive indications" that the other
AstraZeneca deliveries are on track but she could not say just how many shots
will arrive in the second quarter. What is known is that at least 26.4 million
more doses — 23 million from Moderna and Pfizer combined, 1.5 million
AstraZeneca doses from the Serum Institute and another 1.9 million AstraZeneca
doses from COVAX, the global vaccine-sharing initiative — will arrive between
April and June.
All told, the
country is projected to have enough supply to fully vaccinate at least 16.45
million people by Canada Day. The supply will grow once delivery schedules for
the AstraZeneca doses are confirmed. Canada is a vaccine laggard in the Western
world right now; dozens of other countries have vaccinated more people per
capita. The government has been insisting that everyone who wants a shot will
get one by the end of September. Asked today if the new approval will result in
an earlier end date for the vaccination campaign, Health Minister Patty Hajdu
said she's hopeful but there could be more "bumps" and
"unexpected challenges" that disrupt delivery schedules. Canada faced
shortages earlier this year when Pfizer retooled its Belgian plant and Moderna
slashed planned deliveries.
'Promising
evidence' Some countries — such as France — have restricted the AstraZeneca
vaccine to people under the age of 65, even though the World Health
Organization insists the product is safe and effective for all age groups The
regulator said the clinical trial results "were too limited to allow a
reliable estimate of vaccine efficacy in individuals 65 years of age and
older," but the department was comfortable with approving the shot because
of "post-market experience in regions where the vaccine has already been
deployed." Speaking at a technical briefing today, Dr. Supriya
Sharma, Health Canada's chief medical adviser, conceded there was limited
clinical trial data about the efficacy of the shot in people over the age of 65
but said regulators approved it because of "promising evidence from
real-world use of the vaccine." Other countries — notably
Australia, the European Union and the United Kingdom — have authorized
AstraZeneca already for use in their jurisdictions. In a study of
vaccine efficacy in Scotland — where both the AstraZeneca and Pfizer products
have been in widespread use for weeks — researchers found the AstraZeneca
product reduced the risk of COVID-19 hospital admissions by roughly 94 per
cent, 28 to 34 days after the first shot. The researchers also warned that the
study sample was quite small. While
there are risks associated with any vaccine, Sharma said, the benefits of
getting an AstraZeneca shot "outweigh their potential risks." Sharma
said it will be up to the National Advisory Committee on Immunization (NACI) to
decide which groups should get each type of vaccine. And while the
AstraZeneca product was found to be less effective than the Pfizer and Moderna
shots already approved, Sharma said there's no doubt that a dose of this
vaccine is better than no dose at all. She cautioned Canadians against
comparing efficacy rates of the various vaccine products, saying that in the
areas that matter most — preventing serious illness, reducing hospitalizations
and curbing the number of deaths — "all these vaccines are good." "If
you look across all the clinical trials of the tens of thousands of people who
were involved, the number of cases of people who died from COVID-19 that got
vaccines was zero," Sharma said. "The number of people that
were hospitalized because their COVID-19 disease was so severe was zero. The
number of people that died because of an adverse event or effect of the vaccine
was zero." Health Canada is recommending that the second dose of
the AstraZeneca product be administered four to 12 weeks after the first, but
Sharma said there is early evidence suggesting it's best to wait the full 12
weeks to deploy the second shot. "With an increased interval, the efficacy
might be much higher," she said. The product was approved in
Australia, for example, but regulators there recommended a three-month wait
between shots.
Unlike the
Moderna and Pfizer shots, which are based on groundbreaking mRNA technlogy, the
AstraZeneca product uses a more conventional viral vector load vaccine
platform. The AstraZeneca shot also doesn't require the same cold storage
equipment necessary for the other two. The product can be stored and transported
at normal refrigerated temperatures of 2 to 8 C for at least six months. This
vaccine also can be easily administered in traditional health care settings,
like a doctor's office or pharmacy.
Regulator
still reviewing 2 other vaccine candidates Health Canada is still reviewing two other
vaccine candidates: one from Johnson & Johnson and another from Novavax.
The U.S. Food and Drug Administration's vaccines advisory committee will
meet today to review the clinical trial data for the Johnson & Johnson vaccine.
A final U.S. decision on issuing emergency use authorization (EUA) could come
as early as this weekend. Canada has ordered 10 million doses from
Johnson & Johnson with options for up to 28 million more, if necessary.
Most of those shots are expected to arrive by the end of September. While
Health Canada regulators are aiming to make a decision on this product on a
timeline similar to that of the FDA, Sharma said the department is still
collecting some data from the manufacturer and a final decision is not expected
this weekend.
^ Canada now
has one more Vaccine to help it against Covid. Hopefully, they will stop being
behind the rest of the world in getting shots into people’s arms. ^
https://www.cbc.ca/news/politics/astrazeneca-approved-1.5929050
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