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Sun Feb 21, 2021, 12:03 AM

Pfizer vaccine doesn't need ultra-cold storage after all, company says

Source: Ars Technica

In a bit of good news, Pfizer and BioNTech announced today that their highly effective COVID-19 vaccine does not require ultra-cold storage conditions after all and can be kept stable at standard freezer temperatures for two weeks.

The companies have submitted data to the US Food and Drug Administration demonstrating the warmer stability in a bid for regulatory approval to relax storage requirements and labeling for the vaccine.

If the FDA greenlights the change, the warmer storage conditions could dramatically ease vaccine distribution, allowing doses to be sent to non-specialized vaccine administration sites. The change would also make it much easier to distribute the vaccine to low-income countries.

“We have been continuously performing stability studies to support the production of the vaccine at commercial scale, with the goal of making the vaccine as accessible as possible for healthcare providers and people across the US and around the world,” Pfizer CEO Albert Bourla said in a statement. “If approved, this new storage option would offer pharmacies and vaccination centers greater flexibility in how they manage their vaccine supply.”

Read more: https://arstechnica.com/science/2021/02/pfizer-vaccine-rollout-might-get-a-lot-easier-ultra-cold-sto



At standard freezer temperatures, the vaccine is good for two weeks. At dry ice / ultra cold storage it lasts 30 days.

Pfizer and BioNTech Submit Covid-19 Vaccine Stability Data at Standard Freezer Temperature to the U.S. FDA
https://www.pfizer.com/news/press-release/press-release-detail/pfizer-and-biontech-submit-covid-19-vaccine-stability-data

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10 replies, 1753 views

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Reply Pfizer vaccine doesn't need ultra-cold storage after all, company says (Original post)
speak easy Feb 21 OP
msongs Feb 21 #1
speak easy Feb 21 #2
paleotn Feb 21 #10
RockRaven Feb 21 #3
Roy Rolling Feb 21 #4
Karma13612 Feb 21 #5
speak easy Feb 21 #6
Karma13612 Feb 21 #7
speak easy Feb 21 #8
Karma13612 Feb 21 #9

Response to speak easy (Original post)

Sun Feb 21, 2021, 12:16 AM

1. bummer if u blew a wad on special freezers nt

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Response to msongs (Reply #1)

Sun Feb 21, 2021, 12:18 AM

2. Doubling a vaccine's shelf life is not to be sneezed at :)

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Response to msongs (Reply #1)

Sun Feb 21, 2021, 10:41 AM

10. Worse is thrown out vaccine because it spent a few days not in ultra cold.

Turns out it was still good. Now they tell us, but in their defense, that's what happens when you have to rush things.

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Response to speak easy (Original post)

Sun Feb 21, 2021, 01:12 AM

3. As the % of the population which has gotten vaccinated grows, the longer shelf life at cold temps

becomes more important -- because the usage rate will drop in various locales.

It's great that they can also have the more permissive temps though, even at the cost of shorter shelf life...

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Response to speak easy (Original post)

Sun Feb 21, 2021, 02:41 AM

4. It Certainly Does Need Ultra-Cool

To last 30:days, the vaccine needs ultra cool temperatures.

To remain effective for only half that long—two weeks, only freezer temperatures are needed.

The “need” here are different time frames.

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Response to speak easy (Original post)

Sun Feb 21, 2021, 07:57 AM

5. I feel bad

For any medical facilities which invested in an ultracool storage unit in preparation for the vaccine. Ouch.

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Response to Karma13612 (Reply #5)

Sun Feb 21, 2021, 08:28 AM

6. The vaccine gets twice the shelf life with ultra cool storage.

In the longer run, it will be worth it.
This is the DU member formerly known as My Pet Orangutan.

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Response to speak easy (Reply #6)

Sun Feb 21, 2021, 08:35 AM

7. Very good point!

But initially, the vaccine should be flying off the shelf, to use a retail expression!
There won’t be any sitting around for quite some time I imagine.

Again, I do see your point for the long term.


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Response to Karma13612 (Reply #7)

Sun Feb 21, 2021, 08:50 AM

8. but wait ... there's more

The Covid vaccine is expected to the the first of many mRNA vaccines ... including possibly, cancer vaccines.

That's was what the BioNtech was founded for -

"We founded BioNTech to advance and develop key technologies and bring together the right people to realize our vision for the future of cancer medicine"
https://biontech.de

This week it was reported the Chinese were having success in mice -

An mRNA vaccine for cancer immunotherapy
https://phys.org/news/2021-02-mrna-vaccine-cancer-immunotherapy.html

One thing is certain - mRNA vaccines are fragile, and the colder storage, the better.
This is the DU member formerly known as My Pet Orangutan.

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Response to speak easy (Reply #8)

Sun Feb 21, 2021, 08:54 AM

9. Oh! Excellent!!!!!..nt

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