Trial of Moderna Covid-19 vaccine delayed, investigators say, but July start still possible
A 30,000-patient trial of Moderna’s coronavirus vaccine candidate, expected to start next week, has been delayed, a potential hurdle in the company’s ambitious effort to deliver key data by Thanksgiving.
Moderna is making changes to the trial plan, called a protocol, which has pushed back the expected start date of the Phase 3 study, according to investigators. The investigators, who spoke on condition of anonymity, emphasized that protocol changes are common but said it’s not clear how long the start will be delayed.
