I'm first reserve for a doctoral training program (SWBio DTP), does anyone know how likely it is that I'll get it? I really want to get in on this program and it's getting so hard to concentrate on anything else. Is there any kind of deadline that applicants have to respond by?

At first reserve for a big program PhD should result in an offer. I know first reserve on a research council PhD funding is nearly guaranteed to be successful. There will always be a few students who get multiple offers or decide against a PhD after applying. Students usually get up to a month to decide but someone could drop out in 2 weeks before it starts.

Fingers crossed!