Salvage therapy or rescue therapy is what you try when other things don't work.
In this trial the patients were all multi-drug resistant, so anything that works at this stage is rescue therapy. That does NOT mean that Leron is only good if nothing else works; it just means that this is something that should be tried if nothing else works. Given the patient population, no other conclusion would be germane.

Nice to see some of the heavy hitters in there. Otto Yang, Jay Lalezari, Jonah Sacha, Scott Hansen, Joe Meidling. Only missing Ohm and Respert.