Non‐Motor Symptoms in Parkinson’s Disease are Reduced by Nabilone

Abstract Objective: The objective of this study was to assess the efficacy and safety of nabilone, a synthetic tetrahydrocannabinol analogue, as a treatment for non‐motor symptoms (NMS) in Parkinson’s disease (PD). Methods: This was a phase II placebo‐controlled, double‐blind, parallel‐group, enriched enrollment randomized withdrawal trial conducted at the Medical University Innsbruck. A random sample of 47 patients with PD with stable motor disease and disturbing NMS defined by a score of ≥4 points on the Movement Disorder Society ‐ Unified