“Health Canada has issued an authorization to extend the expiration date of specific lots of AstraZeneca COVID-19 vaccine from six to seven months, following the review of the stability data submitted,” said Alexandra Hilkene, Associate of press of the Minister of Health.
Hilkene said vaccines that were due to expire on May 31 can now be used until July 1.
Health Canada said it made the decision to help use existing doses and noted that this decision was supported by scientific evidence.
The federal ministry said the vaccine maker made a submission earlier this week that supported extending the expiration date for two batches of the vaccine.
He says the submission included “stability and mathematical modeling data” that showed the doses would still be safe and effective for seven months instead of the original six.
“This change will ensure that provinces and territories will be able to use their existing inventory and provide Canadians with access to much needed doses of the vaccine,” Health Canada said in a statement.
The head of the Ontario Pharmacists Association said Health Canada’s decision is not unprecedented when it comes to changing data associated with a new vaccine.
“This is good news,” said Justin Bates. “While I understand this will create a lot more questions… so people can continue to make informed consent decisions. “
Bates said pharmacies in different parts of Ontario have stepped up efforts to get gunshots and avoid wasting doses, and those efforts will continue.
“It gives us a longer track and reduces the risk of (waste), which I think is a good thing and that’s the silver lining in it all,” he said.
NEW: Health Canada approves the extension of AstraZeneca’s expiration date from May 31 to July 1 “after a review of stability data”. This means Ontario’s AZ doses, which will expire on Monday, are no longer likely to deteriorate. #onpoli
– Cynthia Mulligan (@CityCynthia) May 29, 2021
The province has started offering it for a second injection to people who received the dose between March 10 and March 19 at pharmacies in Toronto, Windsor and Kingston, and in some primary care offices.
About 90,000 people participated in the AstraZeneca pilot project between March 10 and March 19. Many enthusiastic vaccines have expressed their frustration this week trying to reserve second doses at pharmacies that were still waiting for a delay in supply.
“Acceleration of second doses of AstraZeneca will continue with an interval of 12 weeks, depending on vaccine supply, with reservation eligibility based on date of first dose,” Hilkene said on Saturday. . “AstraZeneca doses will be distributed throughout the province to be available to individuals at 12 week intervals. “
The province suspended use of the AstraZeneca vaccine earlier this month due to an increase in reports of rare but fatal blood clots.