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Huntington's disease is a genetic neurodegenerative disorder, marked by preferential degeneration of neurons in the basal ganglia (caudate and putamen) and accompanied by motor deficits, cognitive impairment and psychiatric symptoms. There is considerable evidence for the involvement of the endocannabinoid system in Huntington's but clinical trials so far have been inconclusive.



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Preclinical research suggests that THC, CBD and CBG have potential in the treatment of Huntington's. However, clinical research has only confirmed the therapeutic effect of THC. Given the nature of the disease  sublingual application could be effective.

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Please note that, while based on preclinical and/or clinical research, this prescription advice is solely intended as a guideline to help physicians determine the right prescription. We intend to continuously update our prescription advice based on patient and/or expert feedback. If you have information that this prescription advice is inaccurate, incomplete or outdated please contact us here.

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Literature Discussion

The endocannabinoid system has an important role in the patophysiology of Huntington’s Disease (Fernández-Ruiz et al., 2015; Pazos, Sagredo, & Fernández-Ruiz, 2008).

A meta-analysis of human and rodent genetics studies found consistent changes in CB1, PPARα and NAPE-PLD in patients and animal models of Huntington’s Disease (Laprairie et al., 2015), suggesting involvement of the endocannabinoid system.

In mice, blocking or stimulating CB2 function, respectively speeds up or slows down motor deficits, synapse loss and CNS inflammation that is associated with Huntington’s (Bouchard et al., 2012).

In a mouse model for Huntington’s (3NP), CBG showed neuroprotective effects and improved motor deficits (Valdeolivas et al., 2015).


Bouchard, J., Truong, J., Bouchard, K., Dunkelberger, D., Desrayaud, S., Moussaoui, S., … Muchowski, P. J. (2012). cannabinoid receptor 2 signaling in peripheral immune cells modulates disease onset and severity in mouse models of Huntington’s disease. The Journal of Neuroscience: The Official Journal of the Society for Neuroscience, 32(50), 18259-18268.

Fernández-Ruiz, J., Romero, J., & Ramos, J. A. (2015). endocannabinoids and Neurodegenerative Disorders: Parkinson’s Disease, Huntington’s Chorea, Alzheimer’s Disease, and Others. En R. G. Pertwee (Ed.), endocannabinoids (pp. 233-259). Springer International Publishing.

Laprairie, R. B., Bagher, A. M., Precious, S. V., & Denovan-Wright, E. M. (2015). Components of the endocannabinoid and dopamine systems are dysregulated in Huntington’s disease: analysis of publicly available microarray datasets. Pharmacology Research & Perspectives, 3(1).

Pazos, M. R., Sagredo, O., & Fernández-Ruiz, J. (2008). The endocannabinoid system in Huntington’s disease. Current Pharmaceutical Design, 14(23), 2317-2325.

Valdeolivas, S., Navarrete, C., Cantarero, I., Bellido, M. L., Muñoz, E., & Sagredo, O. (2015). Neuroprotective properties of cannabigerol in Huntington’s disease: studies in R6/2 mice and 3-nitropropionate-lesioned mice. Neurotherapeutics: The Journal of the American Society for Experimental NeuroTherapeutics, 12(1), 185-199.

Clinical Trials

In one clinical trial, nabilone (a synthetic variant of THC) was found to improve motor function and reduce cognitive decline in Huntington’s patients (Curtis et al., 2009). In another trial, CBD was found ineffective in treating either the symptoms of Huntington’s or the underlying causes (Consroe et al., 1991).


Consroe, P., Laguna, J., Allender, J., Snider, S., Stern, L., Sandyk, R., Kennedy, K., and Schram, K. (1991). Controlled clinical trial of cannabidiol in Huntington’s disease. Pharmacol. Biochem. Behav. 40, 701–708.

Curtis, A., Mitchell, I., Patel, S., Ives, N., and Rickards, H. (2009). A pilot study using nabilone for symptomatic treatment in Huntington’s disease. Mov. Disord. Off. J. Mov. Disord. Soc. 24, 2254–2259.