The PR means by the end of the year, the sentence structure is normal for English. They introduce an idea and everything after the comma goes with it so they are saying full trial enrollment, Canada and UK bla, and covid longhaulers phase 2 a by end of year. I do notice usa bla is not listed but not surprised. After reading about how it took IMMU 12 months to refile after their initial thumbs down by the FDA, and hearing what cydy is missing from theirs 1st half of 2021 would be more accurate.