Effective in reducing chronic neuropathic pain compared with placebo. No major adverse effects observed.
Link: Analgesic Effect Of The Synthetic Cannabinoid CT-3 On Chronic Neuropathic Pain: A Randomized Controlled Trial
Year: 2003
DOI: 10.1001/jama.290.13.1757
Demonstrable efficacy of cannabis for treatment of Pain (Neuropathies, in general) according to the results found in this study.
Synthetic cannabinoid CT-3, a potent analog of THC-11-oic acid