They have found a way to "lift this ban". The company simply has to conduct a well run trial, submit the trial data to the FDA, and ask for an emergency use authorization. Once they do that, it takes two or three weeks for the FDA to processes it. That two or three weeks is not red tape--it is the FDA having their own scientists and independent scientists go over all the data and do the safety and efficacy calculations themselves.

This worked fine for Pfizer, Moderna, and Johnson & Johnson.