My point being, that those in states where it's legal, are using it and will continue using it, for the purposes they know it works for, regardless of the absence of formal double-blind clinical placebo-controlled statistically significant in vitro studies.
Even if it were legal, pharma will not expend the megabucks required to do these studies unless it leads to the development and approval of profitable new DRUGS. An herb that anybody in a legal state can grow or acquire at a modest price from a dispensary does not require clinical studies to motivate people to use it. The "crowd-sourced" trials have already produced significant evidence.
Frankly I hope Big Pharma will leave MJ alone. We don't need GMO frankenMJ and we don't need expensive MJ-derivative pharma drugs.
Not a medfag, not medical advice.