AstraZeneca Halts COVID-19 Vaccine Trial Testing

AstraZeneca halted coronavirus vaccine trial testing after a volunteer developed a “potentially unexplained” illness The comp...

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  • AstraZeneca halted coronavirus vaccine trial testing after a volunteer developed a “potentially unexplained” illness
  • The company is investigating whether it is a side effect of inoculation
  • The AstraZeneca vaccine was considered one of the most advanced in the world by the WHO

The pharmaceutical AstraZeneca has decided to interrupt a clinical trial to achieve a vaccine against COVID-19 because one of the participants suffers from “a potentially inexplicable disease,” a company spokesperson told the US media, according to the Efe agency.

The company is investigating whether a participant’s “potentially unexplained” illness was a side effect of the inoculation.

In a statement issued Tuesday night, the company said its “standard review process created a pause in vaccinations to allow review of safety data.”

AstraZeneca Halts COVID-19 Vaccine Trial Testing

Photo: Twitter.

AstraZeneca did not disclose any information about the possible side effect, other than calling it “a potentially unexplained illness.” The health news portal STAT was the first to report the pause in testing, claiming that the possible side effect occurred in the UK.

A spokesperson for AstraZeneca confirmed that the pause in vaccinations includes studies in the United States and other countries.

At the end of last month, AstraZeneca began recruiting 30,000 people in the United States for your largest vaccine trial.

He is also testing the vaccine, developed by the University of Oxford, in thousands of people in Britain, and in smaller-scale studies in Brazil and South Africa.

Two other vaccines are in the final stages of testing in the United States: one produced by Moderna Inc. and the other by Pfizer and the German laboratory BioNTech. Those two vaccines work differently than AstraZeneca’s, and the studies have already recruited two-thirds of the volunteers needed, according to The Associated Press.

AstraZeneca Halts COVID-19 Vaccine Trial Testing

Photo: Twitter.

Temporary pauses in large-scale medical studies are not unusual, and investigating any possible serious side effects or unexpected reactions is mandatory. AstraZeneca noted that the problem could be a coincidence; Diseases of all kinds can arise in studies of thousands of people.

“This is a routine action that happens whenever there is a potentially unexplained disease in one of the trials while it is being investigated, ensuring that the integrity of the studies is maintained,” the spokesperson told CNBC and the specialized media Stat.

“We are working to expedite the review of that lone event to minimize any potential impact on the testing schedule,” the company said in its statement.

It’s possible that the unexplained illness was serious enough to require hospitalization and not a mild side effect like fever or muscle pain, said Deborah Fuller, a researcher at the University of Washington who is working on a different coronavirus vaccine and whose tests in people have not started yet.

AstraZeneca Halts COVID-19 Vaccine Trial Testing

Photo: AP.

“It’s not something to be alarmed about,” Fuller said. Rather, it is reassuring that the AstraZeneca company pauses its research to find out what’s going on and carefully monitor the health of study participants.

Dr. Ashish Jha of Brown University said via Twitter that the significance of the disruption is unclear, but noted that he was still optimistic that an effective vaccine will be found in the coming months.

“But optimism is not evidence,” he wrote. “Let science drive this process.”

Angela Rasmussen, a virologist at Columbia University in New York, tweeted that the disease might not be related to the vaccine, “but the important part is that that’s why we do tests before releasing a vaccine to the general public.”

Filed Under: AstraZeneca Stops Vaccine Testing

During the third and final stages of the trials, researchers look for any hints of possible side effects that may have gone unnoticed in previous patient research. Due to their large size, studies are considered the most important phase of research to record less common side effects and establish safety margins.

The tests also allow for efficacy to be assessed by tracking who gets sick and who doesn’t among patients who received the vaccine or a placebo.

The announcement came on the same day that AstraZeneca and eight other pharmaceutical companies pledged to uphold the highest ethical and scientific standards in the development of their vaccines.

That came amid fears that President Donald Trump will pressure the Food and Drug Administration (FDA) to approve a vaccine before it is shown to be safe and effective.

Filed Under: AstraZeneca Stops Vaccine Testing

The United States has invested billions of dollars to rapidly develop multiple coronavirus vaccines. But public fears that a vaccine will be ineffective and unsafe could prove disastrous, derailing plans to vaccinate millions of Americans.

Representatives for the FDA did not immediately respond to requests for comment.

AstraZeneca shares traded on the US stock market fell more than 6% in after-hours trading after the suspension of testing was reported.

This is the vaccine that AstraZeneca, based in Cambridge (United Kingdom), had developed together with the University of Oxford and whose efficacy was being tested in the United States, Brazil and South Africa after the trial had given positive results in its initial phases , when it was tested with a thousand people in the UK.

Filed Under: AstraZeneca Stops Vaccine Testing

In addition, the Governments of Argentina and Mexico, as well as the Mexican Slim Foundation, reached an agreement with AstraZeneca and the University of Oxford in August to manufacture the vaccine in their countries and then distribute it to all Latin American countries, with except for Brazil.

As reported in August by the president of Argentina, Alberto Fernández, the goal was to produce between 150 and 250 million doses that would be available at affordable prices, with an individual cost of between 3 and 4 dollars.

At the moment, the effects that this incident could have on AstraZeneca’s plans to develop the vaccine in Mexico and Argentina are unknown.

AstraZeneca planned to have its vaccine available by the first half of 2021 and was considered one of the most advanced in the world by the World Health Organization (WHO).

Filed Under: AstraZeneca Stops Vaccine Testing

The post AstraZeneca Halts COVID-19 Vaccine Trial Testing appeared first on Hispanic World.


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