I’m a little confused by the “dual” HIV bla

I’m a little confused by the “dual” HIV bla filing. What does this mean? I thought the mono HIV would be a label expansion after the combo is approved by the fda. I also thought this was an optimistic plan from Nader, I would assume a whole mono trial will be needed (not just the investigational one). Do you really think a concurrent combo and mono BLA submittal?