Clinical Studies and Case Reports

On this site you will find clinical studies with cannabis or single cannabinoids in different diseases and case reports on the use of cannabis by patients.
You may search for diseases (indications), authors, medication, study design (controlled study, open trial, case report etc.) and other criteria.

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TitleRandomised Placebo Controlled Double Blind Clinical Trial of Cannabis Based Medicinal Product (Sativex) in Painful Diabetic Neuropathy: Depression is a Major Confounding Factor.
Author(s)Selvarajah D, Gandhi R, Emery CJ, Tesfaye S.
Journal, Volume, IssueDiabetes Care. 2010 Jan;33(1):128-30.
Major outcome(s)No difference between cannabis extract and placebo.

Objective- To assess the efficacy of Sativex, a cannabis based medicinal extract, as adjuvant treatment in painful-DPN. Research design and methods- In this randomized controlled trial, 30 subjects with painful-DPN received daily Sativex or placebo. Primary outcome measure was change in mean daily pain scores and secondary outcome measures included quality of life assessments. Results- There was significant improvement in pain scores in both groups but mean change between groups was not significant. There were no significant differences in secondary outcome measures. Patients with depression had significantly greater baseline pain scores that improved regardless of intervention. Conclusion- This first ever, trial assessing the efficacy of cannabis has shown it to be no more efficacious than placebo in painful-DPN. Depression was a major confounder and may have important implications for future painful-DPN trials.

Duration (days)
Participants30 patients with painful diabetic neuropathy
DesignControlled study
Type of publicationMedical journal
Address of author(s)Diabetes Research Department, Royal Hallamshire Hospital, Glossop Road, Sheffield, UK.
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