Not just diabetes, it appears to enhance the efficacy (such as it is) of cytotoxic chemotherapy as well.

Not sure how someone would actually file an infringement lawsuit for not eating, though. This therapy has a little tiny bit of prior art (e.g. several hundred million years).

Patent applications and prosecutions are difficult, much more difficult than I think most realize. Try it yourself (be sure to have at least a spare $13000 lying around) and come back in a year or so with your scars, if you're one of the folks randomly sniping about the process. It's far, far, far from perfect; but it evolves (see for example Myriad, Prometheus, and Alice for important recent cases) and the worst mistakes do get corrected.

JMHO