I highly recommend you check out this article from Dr David Allsop on medical cannabis. It’s also worth noting that at the bottom of the article there’s a call for recruits for two studies:

We’re currently recruiting participants for two cannabinoid research studies in Sydney. The first is looking at regular, non-treatment seeking cannabis users to help us understand the role of the endocannabinoid system in pain perception, while the other is recruiting people who need help with problematic cannabis use, examining the effects of daily exercise on endocannabinoid release and stored THC.