This COVID-19 vaccine study was put on hold because someone suffered a major side effect
A participant in the UK was suspected of an adverse reaction to the COVID-19 vaccine.
AstraZeneca and the University of Oxford halted their COVID-19 vaccine phase 3 study this week after there was a suspected adverse reaction to the vaccine in someone from the United Kingdom, per STAT News.
A spokesperson for AstraZeneca said in a statement that the company’s “standard review process triggered a pause to vaccination to allow review of safety data.”
- The pause was “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.”
- The company is “working to expedite the review of the single event to minimize any potential impact on the trial timeline,” the spokesperson said.
AstraZeneca said in a separate statement that it decided to put the study on hold.
- One unnamed source told STAT News that the reaction itself, and when it happened, were not known. But the participant was said to have recovered from the reaction.
A pledge of safety
The companies said they would wait until they were sure the vaccine worked well.
- “We, the undersigned biopharmaceutical companies, want to make clear our ongoing commitment to developing and testing potential vaccines for COVID-19 in accordance with high ethical standards and sound scientific principles,” the companies said in a statement.