The U.S. infectious disease expert said he hoped the pharmaceutical company could proceed with its trial.
The company stressed that such actions were routine in clinical trials and said an independent team would review safety data.
Pharma giant AstraZeneca says it's "too early to comment on pricing post-pandemic".
The pharma giant said it was "too early to comment on pricing post-pandemic" for the coronavirus drug it is trialing at Oxford University.
Business secretary Alok Sharma hails deal between AstraZeneca and Oxford University to manufacture vaccine.
In the wake of Wall Street recklessness that caused economic collapse, Congress gave shareholders and citizens Dodd-Frank to help them constrain self-dealing corporate executives. The 99% Coalition and shareholders are working with those tools even as Republicans vow to take them away.