First human trial of AstraZeneca COVID-19 vaccine shows promise

The leaders for two of the most advanced coronavirus vaccine projects – Oxford University, in partnership with AstraZeneca labs, and China’s Sinovac – will carry out clinical testing in Brazil.

LONDON: AstraZeneca’s experimental COVID-19 vaccine was safe and produced an immune response in early-stage clinical trials in healthy volunteers, data showed on Monday (Jul 20).

The vaccine is called AZD1222 and is being developed by AstraZeneca and scientists at Britain’s University of Oxford.

It did not prompt any serious side effects and elicited antibody and T-cell immune responses, according to trial results published in The Lancet medical journal.

“We hope this means the immune system will remember the virus, so that our vaccine will protect people for an extended period,” study lead author Andrew Pollard of the University of Oxford said.

“However, we need more research before we can confirm the vaccine effectively protects against SARS-CoV-2 (COVID-19) infection, and for how long any protection lasts,” he said.

British Prime Minister Boris Johnson described the trial data as very positive.

“This is very positive news. A huge well done to our brilliant, world-leading scientists & researchers at @UniofOxford,” Johnson said, on Twitter, linking to a report on the data.

“There are no guarantees, we’re not there yet & further trials will be necessary – but this is an important step in the right direction.”

AstraZeneca’s is among the leading vaccine candidates against a pandemic that has claimed more than 600,000 lives, alongside others in mid and late-stage trials.

These include shots being developed by China’s Sinovac Biotech, another from state-owned Chinese firm Sinopharm, and one from the US biotech firm Moderna.

AstraZeneca has signed agreements with governments around the world to supply the vaccine should it prove effective and gain regulatory approval. The company has said it will not seek to profit from the vaccine during the pandemic.

Researchers said the vaccine caused minor side effects more frequently than a control group, but some of these could be reduced by taking paracetamol, with no serious adverse events from the vaccine.

Z24 News

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