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Oxford University / John Cairns
AstraZeneca and the University of Oxford lead other vaccines.
The last testing phase of a coronavirus vaccine was discontinued, after a volunteer became infected during the testing period.
This seems to be a cause for concern.
But AstraZeneca, a drug maker, involved in vaccine trials with the University of Oxford, described the matter as a “routine” comment, saying there was a “mysterious illness” that could be related to a backlash the boy felt. voluntary.
How common is trial suspension and what does this mean for the Covid-19 vaccine?
What do we know about vaccine trials?
The AstraZeneca-Oxford vaccine is one of the leading vaccines in the global race to find a vaccine to counter the coronavirus.
Therefore, any delay is disappointing.
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The reason for suspending the vaccine trials was the appearance of a “suspected serious adverse reaction” to one of their volunteers, and he was taken to hospital, according to Stat News, which broke the news Tuesday.
Details are not yet known, but Stat News quoted sources as saying it hopes the patient will recover.
“The usual review process has led to the suspension of the vaccine trial to allow a review of the safety data,” AstraZeneca said in a statement.
Fergus Walsh, the BBC’s medical editor, says the process could take “days.”
How common is suspension of vaccine trials?
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Reuters
Such a comment, says Welch, is “a common occurrence.”
He adds: “If a volunteer is taken to the hospital and the cause of their illness is not immediately clear, the study should be suspended.”
A spokesman for the University of Oxford said: “In large trials, diseases occur by chance, but they must be reviewed in a neutral way to discover the causes.”
This is not the first time this has happened in coronavirus vaccine trials, Welch added.
It is the second time since testing of a possible vaccine with volunteers began in April.
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fake images
About 30,000 volunteers participate in the experiments.
Moncef Al-Salawi, the senior US official who is in charge of the program to develop a vaccine for Covid-19, said that a committee of experts in the United States and Britain “carefully and thoroughly reviews the vaccine the company is in. testing, and this is a common procedure when there is a backlash. “
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Will the Covid-19 vaccine be safe?
After news of the trials’ suspension spread, AstraZeneca and the University of Oxford were quick to say that the move is aimed at ensuring the safety of any vaccine that is put on the market for people.
And nine major pharmaceutical companies that are developing vaccines to combat Covid-19, including AstraZeneca, signed a “historic pledge” Tuesday to make safety a “top priority” during the development of the first vaccines.
The group of companies, which includes Johnson & Johnson, BioNTech, Glasgow Smith Klein, Pfizer, Merck, Moderna and Sanofi & Novavax, promised to “support the knowledge” in the search for the vaccine.
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EPA
Phase III experiments were discontinued after a volunteer fell ill with a rare disease.
Among the other promises made to companies:
- Continue to adhere to the highest scientific and ethical standards during testing and in the manufacturing process.
- Working to ensure adequate supplies and multiple options for the vaccine, including those that allow you to have global access.
How close are we to having a vaccine for Covid-19 available?
The World Health Organization says around 180 vaccines are currently being tested worldwide, but none have completed all the required trials.
It says it does not expect to provide a vaccine that meets safety and efficacy rules this year, due to the time period required to test its safety.
The AstraZeneca vaccine and Oxford University is considered a solid leader, because it has already successfully completed the first and second stages of testing.
And the third phase of the tests began in recent weeks, with several volunteers, about 30 thousand people in the United States, Great Britain, Brazil and South Africa, but these experiments are now suspended.
Image source
Reuters
President Trump wants the vaccine to be available before November 3, the date of the presidential election.
Phase III trials of the vaccine generally involve thousands of volunteers and can take several years.
- Is Trump “circumventing” approval of a Corona virus vaccine before the presidential election?
US President Donald Trump had said he wanted the vaccine to be available in the United States by November 3, the date of the presidential election.
According to some scientists, Trump’s comments have raised concerns that the policy will lead to lax observance of required safety rules during vaccine production.
Some scientists also expressed skepticism about the rapid development of a vaccine in Russia, which it announced, challenging the results of the Russian study.
