The FGEN drug was able to reverse radiation-induced lung fibrosis in an animal model
In their open label ph 2 using high res CT there were patients with reversal of fibrosis as well - also i think a first. This was all in the low dose group - in fact i don't knwo if they released data on the high risk group but the currently enrolling randomized trial uses the higher dose FWIW
PS: I've been travelling so haven't been as active and noticed FGEN has taken a dive. Maybe this is a good entry point for mcbio et.al??