FDA Widens Safety Inquiry Into AstraZeneca Vaccine (RTRS Sources)

The U.S. Food and Drug Administration has broadened its investigation of a serious illness in AstraZeneca Plc's COVID-19 vaccine study and will look at data from earlier trials of similar vaccines developed by the same scientists, three sources familiar with the details told Reuters. AstraZeneca's large, late-stage U.S. trial has remained on hold since Sept. 6, after a study participant in Britain fell ill with what was believed to be a rare spinal inflammatory disorder called transverse myelitis. The widened scope of the FDA probe raises the likelihood of additional delays for what has been one of the most advanced COVID-19 vaccine candidates in development. The requested data was expected to arrive this week, after which the FDA would need time to analyze it, two of the sources said.