Unblinding Plans For COVID-19 Vaccine Trials Take Roads Less Travelled
Pfizer relies on investigators to determine when prioritization recommendations apply, Moderna offers unblinding to everyone.
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Timeline for getting data on COVID-19 vaccines ability to prevent transmission is likely pushed due to the decision not to proceed with a NIH study on the topic. CDC warns that it will take more time than people expect to get other key data points filled in and vaccine regimen plans shouldn’t change without such data.
US FDA’s outside advisors say Moderna should offer vaccine to placebo-arm patients when they are eligible, the same plan adopted for the Pfizer/BioNTech COVID-19 vaccine.
Only vaccinating the placebo group would be much easier once the US FDA grants an EUA for its coronavirus vaccine, Pfizer says.