Dr. Anthony Fauci said “it’s just a matter of time” before the AstraZeneca Covid-19 vaccine clinical trial resumes in the United States.
The trial went on pause worldwide last week while doctors looked into the illness of a Phase 3 clinical trial participant who received the vaccine and became ill.
“It would be unusual to completely stop a trial on the basis of one single adverse event,” Fauci told CNN on Tuesday afternoon.
The study participant who became ill is enrolled in a trial in the UK being run by the University of Oxford, which is working with AstraZeneca on the vaccine, since they developed.
The UK arm of the trial has already resumed. In its information for trial participants, the university mentions that study volunteers “developed unexplained neurological symptoms including changed sensation or limb weakness” and that “after independent review, these illnesses were either considered unlikely to be associated with the vaccine or there was insufficient evidence to say for certain that the illnesses were or were not related to the vaccine.”
Fauci, director of the National Institute for Allergy and Infectious Diseases, said doctors leading the trial sites in the US will be told to look out for similar symptoms.
“You have to be extra special careful and watch out to see if it happens again, and then if it does, it becomes an entirely different situation,” he said.