ibx burns cash every day and the burn rate is increasing. The cash will not last indefinitely, so no one can say they have enough to complete the trial because no one knows when the trial will end. In fact, no one knows if proulx will ever enroll enough people to complete it in a meaningful way.
I don't see why some want to cut this guy so much slack. He's been running the show for years, even going back to before the spinoff. In spite of all the hype, all the interviews, all the articles, still waiting with a finger in the wind to find out of the technology is commercially viable (proulx's own words, not mine).
IMO there is (more) big dilution on the way and that is why stock is heading toward a penny again.