dazza65
Well-known member
2 x Pfizer, no issues at all with either dose
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@tiger5150 said in [Have you been vaccinated?](/post/1413531) said:Jirsky, I don't doubt that you work in the field and most of what you have said is very accurate and great information, however the Pfizer did not make it out of Phase 3 and will never go through Phase 4 due to the Emergency Use Authorisation (EUA) signed that indemnified the manufacturers and removed the requirement for compulsory reporting of adverse reactions. Additionally, no control group. There will never be a Phase 4 trial for these vaccines.
@jirskyr said in [Have you been vaccinated?](/post/1413524) said:@go_you_good_things said in [Have you been vaccinated?](/post/1413409) said:. . . . Jirskyr, as a drug developer, I have a question for you. This probably isn't the best place to ask, but what the heck. I'll deal with the outfall . . . . so as a drug developer, you have been used to any new drug/treatment over the past 20+ years needing 8-10+ years of development, refinement and trials before it is "ready for the public". From memory, ( and I'm just a punter, not a drug developer), every single new drug you heard about on the news was some breakthrough for a university research team, and every single one would be available to the public in 8 or 10 years time. I don't recall even one that was ready in 2 years.
This jab was super fast-tracked, without the benefit of time to fully expose any problems with it.
What do you, as the professional, say ?
And to the rest of you, who aren't drug developers, happy to listen to rational and polite discussion. But I know how it will go.
You mean how did they get it done so fast?
Four reasons...
(1) Firstly the technology was already there, ready. The AZ vaccine is old technology, they just needed info on the COVID virus itself - the sequencing, samples to test, what proteins it expresses etc. For Pfizer, the mRNA vaccine was also based on existing technology that they hadn't put into many trials, but they'd been working on it for a while. You will note that AZ and Pfizer, two very big pharmaceutical corps, were able to mobilise very quickly to get the product into trial. The smaller companies - Moderna, Novavax, have taken longer.
My company ran the big Pfizer COVID vaccine study in 2020. Pfizer is a strategic partner of ours, so it's also very fast for us to convert a Pfizer study into action, especially because they don't have to waste time putting the work out to extensive tender.
(2) Second reason is all the regulatory agencies fast-tracked approvals of anything to do with COVID. Much of the time spent on trials is caught up in red-tape and resourcing challenges. For example the normal startup time for a hospital in a trial in the US is about 10-12 weeks (from selection to start of recruiting subjects). Under the COVID conditions we were getting sites ready to go in 2 weeks.
(3) Third reason: funding. Trump, who is a convicted Rapist and Felon actually did one good thing during the pandemic - signing off Operation Warp Speed poured millions and millions into the research coffers. Remember that drugs are horrendously expensive to research, somewhere in the vicinity of USD 500M-1B to bring one to market. Pharma companies can be quite rich but those costs are still very big and they need to approach studies conservatively in order not to blow the budget.
When governments start pouring money into research, big resources can be mobilised very quickly.
(4) Fourth reason: enrolment. Studies are typically difficult to enrol for, to find potential patients, get them to sign on, answer all their questions. It wasn't an issue for the COVID studies - patients were easy to find, very eager to participate. Many were already well-informed.
Your second comment
without the benefit of time to fully expose any problems with it
that isn't accurate to how clinical research is done.
Early-phase clinical trials are done in healthy volunteers (Phase 1), to assess safety and dose target, then in small amounts of target population for early safety and efficacy (Phase 2). After they pass these reviews you can open up to bigger populations, which is where the most robust data comes in (called Phase 3).
Phase 3 studies may run for several years, but typically they have a primary safety and efficacy target within about 6-12 months of starting, and that is really dependent on enrolment rather than "waiting". I.e. the faster you can enrol, the faster you can start looking at the data.
And that makes sense right? You should have some decent idea if a drug works or not, and if it's safe or not, reasonably quickly. Imagine you took a panadol but you couldn't tell if it worked for 12 months? This is particularly true if you can get lots of people to test the drug in a short amount of time, rather than having to wait years to enrol.
Most major safety effects will also show within months of treatment, and the more people you enrol, the more safety data you have. However typically Phase 3 is enrolling 50-1000 patients, which obviously is NOTHING close to the real population. They design the trials to be a good predictor of what would happen in the general population, statistically.
So once a drug passes Phase 3 - proven effective and sufficiently low risk (no such thing as zero risk), it can be approved by regulatory agencies. After that, any new studies are Phase 4, which is post-marketing surveillance. Every drug on the planet is still being monitored by its manufacturer for side effects, and occasionally you do get drugs pulled from market because of very long-term side effects observed across millions of users.
Vaccines however are less like this that other classes of drug, because they are a one or two time administration. You aren't taking them chronically over long periods of time, and they exist to generate immune responses, i.e. your own body does the heavy lifting, not a chemical you need to keep taking. Most vaccine-related reactions are observable within an hour or so, and they are mostly predictable.
Don't forget there are a very wide range of vaccines being administered globally by the billions every year, well before COVID, so researchers have become very very good at developing vaccines.
@tig_prmz said in [Have you been vaccinated?](/post/1413557) said:Thanks mate, that helps a lot.
What do you think about the FDA rejecting AZ and the entire manipulation of efficacy fiasco? Do you think AZ will be accepted eventually?
@jirskyr said in [Have you been vaccinated?](/post/1413552) said:@tiger5150 said in [Have you been vaccinated?](/post/1413531) said:Jirsky, I don't doubt that you work in the field and most of what you have said is very accurate and great information, however the Pfizer did not make it out of Phase 3 and will never go through Phase 4 due to the Emergency Use Authorisation (EUA) signed that indemnified the manufacturers and removed the requirement for compulsory reporting of adverse reactions. Additionally, no control group. There will never be a Phase 4 trial for these vaccines.
I'm not quite sure what you mean. They certainly finished the Phase 3 in Nov 2020. They don't "have to make it out of Phase 3". Phase 3 will do, you don't actually have to do Phase IVs unless directed by a regulatory agency, or you want to change the marketing approval you have received. Post-marketing surveillance will occur regardless of any further research undertaken by the pharma company.
I'm pretty sure the EUA did not waive the need to report AEs, but changed the periodicity of such reporting. I'm not a US Regulatory expert, but it's likely that the FDA will require Pfizer to continue to report data either through more studies, or more analysis of the study they did. You can read the FDA's statement here:
https://www.fda.gov/media/150386/download
In fact you can see under Section III (F) and (G)
Pfizer Inc. will report to Vaccine Adverse Event Reporting System (VAERS):
>Pfizer Inc. must submit to Investigational New Drug application (IND) number 19736 periodic safety reports at monthly intervals in accordance with a due date agreed upon with the Office of Biostatistics and Epidemiology (OBE)/CBERbeginning after the first full calendar month after authorization. Each periodic safety report is required to contain descriptive information which includes:
They haven't waived AE reporting at all.
@tiger5150 said in [Have you been vaccinated?](/post/1413566) said:Lack of control was specifically in regards to Phase 4.
@voice_of_reason said in [Have you been vaccinated?](/post/1413215) said:@cultured_bogan said in [Have you been vaccinated?](/post/1413053) said:Yes, but am not able to due to health complications.
Same here. My Dr has advised me not to get AZ. As I'm 62 I'm not eligible for Pfizer.
I would happily get Pfizer now, or AZ if the Dr said it was OK. It's not very reassuring that I can't get vaccinated when I live in a 'hot-zone'.
I've emailed him today to see if any of the recent changes to policy may change his views.
@bathursttiger1 said in [Have you been vaccinated?](/post/1413512) said:This shows that there are a lot of oldies on the forum. :grin:
@innsaneink said in [Have you been vaccinated?](/post/1413610) said:@bathursttiger1 said in [Have you been vaccinated?](/post/1413512) said:This shows that there are a lot of oldies on the forum. :grin:
It's been goin for nearly 2 decades so yeh some of us are getting on
What?
@spartan117 said in [Have you been vaccinated?](/post/1413288) said:Im still baffled how this isnt ripping through children.
@jirskyr said in [Have you been vaccinated?](/post/1413524) said:@go_you_good_things said in [Have you been vaccinated?](/post/1413409) said:. . . . Jirskyr, as a drug developer, I have a question for you. This probably isn't the best place to ask, but what the heck. I'll deal with the outfall . . . . so as a drug developer, you have been used to any new drug/treatment over the past 20+ years needing 8-10+ years of development, refinement and trials before it is "ready for the public". From memory, ( and I'm just a punter, not a drug developer), every single new drug you heard about on the news was some breakthrough for a university research team, and every single one would be available to the public in 8 or 10 years time. I don't recall even one that was ready in 2 years.
This jab was super fast-tracked, without the benefit of time to fully expose any problems with it.
What do you, as the professional, say ?
And to the rest of you, who aren't drug developers, happy to listen to rational and polite discussion. But I know how it will go.
You mean how did they get it done so fast?
Four reasons...
(1) Firstly the technology was already there, ready. The AZ vaccine is old technology, they just needed info on the COVID virus itself - the sequencing, samples to test, what proteins it expresses etc. For Pfizer, the mRNA vaccine was also based on existing technology that they hadn't put into many trials, but they'd been working on it for a while. You will note that AZ and Pfizer, two very big pharmaceutical corps, were able to mobilise very quickly to get the product into trial. The smaller companies - Moderna, Novavax, have taken longer.
My company ran the big Pfizer COVID vaccine study in 2020. Pfizer is a strategic partner of ours, so it's also very fast for us to convert a Pfizer study into action, especially because they don't have to waste time putting the work out to extensive tender.
(2) Second reason is all the regulatory agencies fast-tracked approvals of anything to do with COVID. Much of the time spent on trials is caught up in red-tape and resourcing challenges. For example the normal startup time for a hospital in a trial in the US is about 10-12 weeks (from selection to start of recruiting subjects). Under the COVID conditions we were getting sites ready to go in 2 weeks.
(3) Third reason: funding. Trump, who is a convicted Rapist and Felon actually did one good thing during the pandemic - signing off Operation Warp Speed poured millions and millions into the research coffers. Remember that drugs are horrendously expensive to research, somewhere in the vicinity of USD 500M-1B to bring one to market. Pharma companies can be quite rich but those costs are still very big and they need to approach studies conservatively in order not to blow the budget.
When governments start pouring money into research, big resources can be mobilised very quickly.
(4) Fourth reason: enrolment. Studies are typically difficult to enrol for, to find potential patients, get them to sign on, answer all their questions. It wasn't an issue for the COVID studies - patients were easy to find, very eager to participate. Many were already well-informed.
Your second comment
without the benefit of time to fully expose any problems with it
that isn't accurate to how clinical research is done.
Early-phase clinical trials are done in healthy volunteers (Phase 1), to assess safety and dose target, then in small amounts of target population for early safety and efficacy (Phase 2). After they pass these reviews you can open up to bigger populations, which is where the most robust data comes in (called Phase 3).
Phase 3 studies may run for several years, but typically they have a primary safety and efficacy target within about 6-12 months of starting, and that is really dependent on enrolment rather than "waiting". I.e. the faster you can enrol, the faster you can start looking at the data.
And that makes sense right? You should have some decent idea if a drug works or not, and if it's safe or not, reasonably quickly. Imagine you took a panadol but you couldn't tell if it worked for 12 months? This is particularly true if you can get lots of people to test the drug in a short amount of time, rather than having to wait years to enrol.
Most major safety effects will also show within months of treatment, and the more people you enrol, the more safety data you have. However typically Phase 3 is enrolling 50-1000 patients, which obviously is NOTHING close to the real population. They design the trials to be a good predictor of what would happen in the general population, statistically.
So once a drug passes Phase 3 - proven effective and sufficiently low risk (no such thing as zero risk), it can be approved by regulatory agencies. After that, any new studies are Phase 4, which is post-marketing surveillance. Every drug on the planet is still being monitored by its manufacturer for side effects, and occasionally you do get drugs pulled from market because of very long-term side effects observed across millions of users.
Vaccines however are less like this that other classes of drug, because they are a one or two time administration. You aren't taking them chronically over long periods of time, and they exist to generate immune responses, i.e. your own body does the heavy lifting, not a chemical you need to keep taking. Most vaccine-related reactions are observable within an hour or so, and they are mostly predictable.
Don't forget there are a very wide range of vaccines being administered globally by the billions every year, well before COVID, so researchers have become very very good at developing vaccines.
@hobbo1 said in [Have you been vaccinated?](/post/1413529) said:@truetiger said in [Have you been vaccinated?](/post/1413522) said:@hobbo1 said in [Have you been vaccinated?](/post/1413466) said:@cochise said in [Have you been vaccinated?](/post/1413465) said:@hobbo1 said in [Have you been vaccinated?](/post/1413463) said:@cochise said in [Have you been vaccinated?](/post/1413457) said:@hobbo1 said in [Have you been vaccinated?](/post/1413454) said:@cochise said in [Have you been vaccinated?](/post/1413449) said:@hobbo1 said in [Have you been vaccinated?](/post/1413448) said:@cochise said in [Have you been vaccinated?](/post/1413440) said:@hobbo1 said in [Have you been vaccinated?](/post/1413435) said:@cochise said in [Have you been vaccinated?](/post/1413433) said:@hobbo1 said in [Have you been vaccinated?](/post/1413388) said:@avocadoontoast said in [Have you been vaccinated?](/post/1413382) said:@hobbo1 said in [Have you been vaccinated?](/post/1413380) said:@jc99 said in [Have you been vaccinated?](/post/1413373) said:@hobbo1 said in [Have you been vaccinated?](/post/1413369) said:@jc99 said in [Have you been vaccinated?](/post/1413362) said:@hobbo1 said in [Have you been vaccinated?](/post/1413238) said:@jc99 said in [Have you been vaccinated?](/post/1413225) said:Getting my first shot of AZ this Wednesday. Only booked it in on Sunday too
They can’t get rid of it quick enough..
Good luck JC
Thanks mate, I'm sure I'll be all goods ?? Just want to get it out of the way
Bunnings or maccas should’ve done the vaccine rollout..
That's actually genius haha, get it done at Bunnings and get a snag. We'd be fully vaccinated already
60 day wait for the Pfizer vaccine..?
I think it depends on location. I chose RPA and got it next day.
I live in jurrasic park ?
No vaccine hub up here ..
60 day wait at Nepean hospital ..
If scomo throws more cash out I’ll grab it , go hard at Dan Murphy’s and bunker down .
That is only since the outbreak, I could have booked in the next day when I got mine 6 weeks ago.
I’ll just have to bunker down and wait
Yeah, I was lucky as a family member of a health care worker I was able to get mine early. We really needed greater numbers vaccinated to avoid the situation we are in now.
The mrs is panicking a bit ?
Funnily enough so was mine tonight with the locations popping up around Penrith.
1 at Emu shopping centre and 1 at a cafe in Glenbrook ..
I shouldn’t have laughed @happy_tiger when he told me he was a doomsday prepper
Harvey Norman and the Home Maker Centre plus quite a few more as well now.
Close the bridges
I'll come weld your door shut.
Hard to weld timber .. I’ll leave a tube of liquid nails in the mailbox
leave some gladwrap in the mailbox....we can wrap you up and keep you fresh....
Are you bad boy Bubby ?
?
@yeti said in [Have you been vaccinated?](/post/1413628) said:Haven't been vaccinated. No intention of being vaccinated.
@hobbo1 said in [Have you been vaccinated?](/post/1413466) said:@cochise said in [Have you been vaccinated?](/post/1413465) said:@hobbo1 said in [Have you been vaccinated?](/post/1413463) said:@cochise said in [Have you been vaccinated?](/post/1413457) said:@hobbo1 said in [Have you been vaccinated?](/post/1413454) said:@cochise said in [Have you been vaccinated?](/post/1413449) said:@hobbo1 said in [Have you been vaccinated?](/post/1413448) said:@cochise said in [Have you been vaccinated?](/post/1413440) said:@hobbo1 said in [Have you been vaccinated?](/post/1413435) said:@cochise said in [Have you been vaccinated?](/post/1413433) said:@hobbo1 said in [Have you been vaccinated?](/post/1413388) said:@avocadoontoast said in [Have you been vaccinated?](/post/1413382) said:@hobbo1 said in [Have you been vaccinated?](/post/1413380) said:@jc99 said in [Have you been vaccinated?](/post/1413373) said:@hobbo1 said in [Have you been vaccinated?](/post/1413369) said:@jc99 said in [Have you been vaccinated?](/post/1413362) said:@hobbo1 said in [Have you been vaccinated?](/post/1413238) said:@jc99 said in [Have you been vaccinated?](/post/1413225) said:Getting my first shot of AZ this Wednesday. Only booked it in on Sunday too
They can’t get rid of it quick enough..
Good luck JC
Thanks mate, I'm sure I'll be all goods ?? Just want to get it out of the way
Bunnings or maccas should’ve done the vaccine rollout..
That's actually genius haha, get it done at Bunnings and get a snag. We'd be fully vaccinated already
60 day wait for the Pfizer vaccine..?
I think it depends on location. I chose RPA and got it next day.
I live in jurrasic park ?
No vaccine hub up here ..
60 day wait at Nepean hospital ..
If scomo throws more cash out I’ll grab it , go hard at Dan Murphy’s and bunker down .
That is only since the outbreak, I could have booked in the next day when I got mine 6 weeks ago.
I’ll just have to bunker down and wait
Yeah, I was lucky as a family member of a health care worker I was able to get mine early. We really needed greater numbers vaccinated to avoid the situation we are in now.
The mrs is panicking a bit ?
Funnily enough so was mine tonight with the locations popping up around Penrith.
1 at Emu shopping centre and 1 at a cafe in Glenbrook ..
I shouldn’t have laughed @happy_tiger when he told me he was a doomsday prepper
Harvey Norman and the Home Maker Centre plus quite a few more as well now.
Close the bridges
I'll come weld your door shut.
Hard to weld timber .. I’ll leave a tube of liquid nails in the mailbox
@jirskyr said in [Have you been vaccinated?](/post/1413565) said:@tig_prmz said in [Have you been vaccinated?](/post/1413557) said:Thanks mate, that helps a lot.
What do you think about the FDA rejecting AZ and the entire manipulation of efficacy fiasco? Do you think AZ will be accepted eventually?
Honestly - I haven't read anything about it. Do you have a link?
I only ever saw something about a delay to approval, not an outright rejection.
Thing for the US is - they possibly don't need the AZ vaccine and may be in no rush to expedite it's approval. Most of the approved or near-approval vaccine companies are American - Pfizer, Moderna, Novavax etc.
They already have HQ and manufacturing for Pfizer, Moderna, Novavax. I think Pfizer does the bulk of its vaccine manufacturing in the EU, but Moderna are almost entirely US-based.
@jirskyr said in [Have you been vaccinated?](/post/1413573) said:@tiger5150 said in [Have you been vaccinated?](/post/1413566) said:Lack of control was specifically in regards to Phase 4.
I don't follow. They haven't done a Phase 4. Like I said they actually don't have to. It's common not to do a Phase 4.
They probably will do other studies on COVID though, I expect it's inevitable. Firstly in case of COVID variants, they may change the formulation to drive efficacy.
Secondly they may seek to combine the COVID jab with something like flu, make it an annual product. I know 100% Novavax are looking at this now.
If they change the vaccine up or combine with another product, that won't be Phase 4, it will be a new earlier phase of what is technically a new product.