Official: FDA Will Not Require Clinical Trials for Redesigned Covid Boosters
usnews.com
usnews.com
Actually, from what I have seen of the initial Omicron booster trials, it's probably the case that they're simply unable to stimulate much production of updated/modified antibodies, which is making it impossible to demonstrate any clinically significant effectiveness against the disease. But now they won't have to!
But hey, "safe and effective"