Padova, Italy: Cannabinoids reduce dementia-induced agitation in older patients and “offer a promising therapeutic option for managing behavioral and psychological symptoms of dementia,” according to the findings of a systematic review published in the Journal of Psychopharmacology.
A team of Italian investigators reviewed data from ten published studies involving 278 participants. Study subjects were at least 60 years old and suffered from either Alzheimer’s, vascular, or mixed dementia.
“Most studies identified a positive effect of [cannabinoid] intervention in reducing behavioral disturbances,” researchers reported. “Agitation emerged as the symptom most consistently benefiting from cannabinoid use … Notably, the observed changes surpassed those reported in similar RCTs [randomly controlled trials] evaluating the effects of antipsychotics and antidepressants. In addition, improvements were reported in nocturnal disturbances, physical and verbal aggression, resistance to care, and vocalizations.”
The studies also reported that cannabinoids were “sufficiently safe and well-tolerated” in this older patient population.
“In conclusion, cannabinoids show promising potential in managing symptoms such as agitation and aggression in people with dementia, with an overall favorable safety and tolerability profile,” the study’s authors determined. “Among the various formulations studied, the available evidence indicates that CBD-rich, low-THC preparations deserve particular attention. These formulations are more widely available in many countries and are associated with a lower risk of side effects. … These findings, together with the need for safer and better-tolerated therapeutic strategies, support further investigation of CBD- rich formulations as a potential first-line option in future clinical research on BPSD [behavioral and psychological symptoms of dementia].”
Full text of the study, “Can cannabinoids alleviate behavioral symptoms in older adults with dementia? A systematic review,” appears in the Journal of Psychopharmacology.