Trial to Evaluate the Effect of Nabiximols Oromucosal Spray on Clinical Measures of Spasticity in Participants With Multiple Sclerosis

This study will be conducted to evaluate the effect of multiple doses of nabiximols as adjunctive therapy compared with placebo on a clinical measure of velocity-dependent muscle tone in the lower limbs (Modified Ashworth Scale Lower Limb Muscle Tone-6 \[MAS LLMT-6\]) in participants with multiple sclerosis (MS) who have not achieved adequate relief from spasticity with other antispasticity medications.