The very last statement in this article reads: "Any potential treatment for cancer needs to be thoroughly evaluated in large clinical trials to make sure it's safe and effective, so further studies are needed before we know for sure what benefits high dose vitamin C may have for patients."
I believe if I were living on borrowed time because I had cancer which was killing me, I'd gladly accept potential treatments as a possible cure. Especially in regards to a therapy such as this one suggested... vitamin C injections. The need for decades of research, testing & trials is utterly ridiculous. As the article states though, pharmaceutical companies are unlikely to fund trials of intravenous vitamin C because there is no ability to patent natural products. That makes it highly unlikely this will be researched further.
How heartbreaking to realize that the only 'cure' for cancer that will ever be available, is the one which enables drug manufacturers to earn hefty profits.