Beyond the obvious fact that wasting the last of your friend's life by pushing him to become a one-subject experiment from a random pubmed article is bad. HN is a tech nerd VC forum, and as a rule, nobody here knows anything about medicine. Even if there are one or two actual subject matter experts in this thread, you can't distinguish them from every idiot who thinks they are god's chosen genius because mommy got them an Apple II when they were kids. If, and only if, he's interested himself, try to get him into a clinical trial; don't get Zika virus from who knows where for the love of God. You'll be a good friend to him during this time. Best of luck.

(4 vaguely related people getting the same aggressive brain tumor sounds worrying)