RE: Stupid question?27 Jun 2020 13:25
Basically: The AZN INEXAS trial, as far as I'm aware, had two major flaws, in that it wasn't purely in patients confirmed to have a virus (only 48% did), and didn't account for corticosteroid usage (which is common in these sort of patients and believed to be an interaction that impacts negatively - ie they reduce immune response). Subsequent analysis showed good impact in the subset of those patients that actually did have a virus.
Also the trial population didn't have a high exacerbation rate, cited as a negative, although I'm less clear on why that's cited as a negative (other than for the trial itself) since surely that arguably suggests the IFN-B helped prevent this and therefore prevented exacerbations to treat!
Hence, I believe (and I'm sure I read this in an old research note from one analyst), there's good reason to believe it was dumped early because it didn't meet their criteria for progression, but may well have had significant reasons why the data wasn't as conclusive as hoped.