The development of a promising COVID-19 vaccine has been put on hold due to an adverse reaction in a trial participant.
A spokesman for AstraZeneca, the company working with a team from Oxford University, told the Guardian the trial has been stopped to review the “potentially unexplained illness” in one of the participants. The spokesman stressed that the adverse reaction was only recorded in a single participant and said pausing trials was common during vaccine development.
“As part of the ongoing randomised, controlled global trials of the Oxford coronavirus vaccine, our standard review process was triggered and we voluntarily paused vaccination to allow review of safety data by an independent committee,” the spokesman said.
“This is a routine action which has to happen whenever there is a potentially unexplained illness in one of the trials, while it is investigated, ensuring we maintain the integrity of the trials. In large trials illnesses will happen by chance but must be independently reviewed to check this carefully."
“We are working to expedite the review of the single event to minimise any potential impact on the trial timeline. We are committed to the safety of our participants and the highest standards of conduct in our trials.”
Source: The Guardian, 9 September 2020
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