• Michael Haupts, Carlos Vila, Anna Jonas, Kerstin Witte, and Lourdes Álvarez-Ossorio.
• Department of Neurology, Augusta Hospital Anholt, Isselburg-Anholt, Germany.
• Eur. Neurol. 2016 Jan 1; 75 (5-6): 236-43.

BackgroundSativex® (THC:CBD oromucosal spray) is indicated as add-on treatment for patients with moderate to severe multiple sclerosis (MS) spasticity. We aimed to determine whether antispasticity treatment history influenced the efficacy and safety of add-on THC:CBD oromucosal spray in MS spasticity patients.MethodsPost hoc analysis of an enriched-design clinical trial of THC:CBD oromucosal spray versus placebo, using records of patients under previous and current ineffective antispasticity therapies. Subgroups were patients with at least 1 failed therapy attempt with either baclofen or tizanidine (Group 1) or at least 2 failed therapy attempts with both baclofen and tizanidine (Group 2).SummaryOf 241 patients in the intent-to-treat population, 162 and 57 patients met the criteria for Groups 1 and 2, respectively. In all groups, response on the spasticity 0-10 Numerical Rating Scale was significantly greater with THC:CBD oromucosal spray versus placebo, for minimal clinically important difference (MCID ≥18% improvement vs. baseline) and clinically important difference (CID, ≥30% improvement vs. baseline). THC:CBD oromucosal spray improved spasticity-related symptoms such as sleep quality and timed 10-meter walk independent of the number of prior failed therapy attempts. Tolerability was not influenced by pre-treatment history.ConclusionsTHC:CBD oromucosal spray provided consistent relief with good tolerability in MS spasticity patients irrespective of their antispasticity pre-treatment history.© 2016 S. Karger AG, Basel.

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