Phase 3 trials of a coronavirus vaccine developed by British drug maker AstraZeneca and Oxford University were put on hold, the company announced Tuesday, due to a suspected serious adverse reaction in a participant.
“THIS IS A ROUTINE ACTION”
AstraZeneca spokeswoman Michele Meixell said: “As part of the ongoing randomized, 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.”
“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. We are working to expedite the review of the single event to minimize any potential impact on the trial timeline,” she added.
The incident highlights the risks in the push to quickly produce a vaccine for coronavirus, which has claimed the lives of nearly 890,000 people and disrupted economies and daily routines worldwide.
Due to the safety issues involved, vaccine trials typically take months and involve tens of thousands of test subjects.
