4 ms·
> But nobody's gone through a full phase III before covid hit, Do you know why nobody did not conduct phase III before? Is it because of safety concerns or la
by reader_1000 6y ago
> But nobody's gone through a full phase III before covid hit,
Do you know why nobody did not conduct phase III before? Is it because of safety concerns or lack of necessity since concerned disease disappeared?
- detaro 6y agoAFAIK some of the breakthroughs in the delivery mechanisms are relatively new. Some of the companies now making a covid vaccine were talking about running a trial for a flu vaccine in the next few years, but obviously that was far less urgent and all the steps (getting permission, getting participants, actually running the study without "unlimited" money, ...) would take longer. (mRNA would be a good candidate for a flu vaccines because they are fast to produce, which in theory reduces the amount of guessing needed to make the "right" flu vaccine for the year, but of course a) flu vaccines already are a thing even if sometimes wrong and b) a flu vaccine isn't given as high priority overall)