Pilot clinical and pharmacokinetic study of...

Pilot clinical and pharmacokinetic study of Δ9-Tetrahydrocannabinol (THC)/Cannabidiol (CBD) nanoparticle oro-buccal spray in patients with advanced cancer experiencing uncontrolled
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0270543
"Conclusions

This report described a single ascending dose (Stage I and multiple ascending doses (Stage II) of a water-soluble Δ9-THC/CBD nanoparticle formulation administered to advanced cancer patients with intractable pain as a co-analgesic.

There was an overall small improvement in average NPRS pain scores over the study treatment period from baseline. The significant improvement in average adjusted NPRS pain scores of 33% above that provided by standard analgesics was recorded for an eligible subgroup of participants with a diagnosis of metastatic breast and prostate cancers (only to bone). We acknowledge that in this preliminary study the secondary endpoint of analgesic clinical efficacy by the cannabis-based medicine will require further confirmatory data from a robust study, albeit the positive signal that was observed."