From what I saw, there are very few experimental therapies that claim 100% efficacy, no side effect, no patent on complex engineering process to produce the drug.
I agree with GP that it is very notable.
I mean if it works on humans, which is not a stretch, colorectal cancer is done. It's huge.
Yes there are few that claim 100% efficacy and no side effect at this stage, but there are far, far, far fewer who make it to human availability.
I wouldn't describe it working in humans as "a stretch" per se. I'm not identifying a specific reason it shouldn't work in humans. I'm just saying that's true of thousands and thousands of really great looking treatments (per year!) that, nonetheless, end up not working in humans, or not being convincing enough to even warrant putting them in humans once.