European Journal of NeurologyVolume 18, Issue 9 p. 1122-1131 A randomized, double-blind, placebo-controlled, parallel-group, enriched-design study of nabiximols* (Sativex®), as add-on therapy, in subjects with refractory spasticity caused by multiple sclerosis A. Novotna, A. Novotna Krajska nemocnice Pardubice, Neurologicke odd, Paradubice, Czech RepublicSearch for more papers by this authorJ. Mares, J. Mares Neurologicka Klinika, Olomouc, Czech RepublicSearch for more papers by this authorS. Ratcliffe, S. Ratcliffe MAC UK Neuroscience Ltd, Manchester, UKSearch for more papers by this authorI. Novakova, I. Novakova MS Centrum, Neurologicka klinika, Prague, Czech RepublicSearch for more papers by this authorM. Vachova, M. Vachova MS centre of Hospital Teplice, Teplice, Czech RepublicSearch for more papers by this authorO. Zapletalova, O. Zapletalova Neurologicka klinika FN Ostrava, Ostrava, Czech RepublicSearch for more papers by this authorC. Gasperini, C. Gasperini Reparto Neurologico LANCISI Day Hospital, Centro Sclerosi Multipla, Rome, ItalySearch for more papers by this authorC. Pozzilli, C. Pozzilli Dipartimento di Scienze Neurologiche, Universita’ degli Studi, Rome, ItalySearch for more papers by this authorL. Cefaro, L. Cefaro Sant’Andrea Multiple Sclerosis Centre, University La Sapienza, Rome, ItalySearch for more papers by this authorG. Comi, G. Comi Centro Sclerosi Multipla Ospedale S. Raffaele, Milan, ItalySearch for more papers by this authorP. Rossi, P. Rossi Centro Sclerosi Multipla Ospedale S. Raffaele, Milan, ItalySearch for more papers by this authorZ. Ambler, Z. Ambler Neurologicka klinika FN Plzen, Plezn, Czech RepublicSearch for more papers by this authorZ. Stelmasiak, Z. Stelmasiak Katedra i Klinika Neurologii Akademii Medycznej, Lublin, PolandSearch for more papers by this authorA. Erdmann, A. Erdmann Pain Clinic F, Edith Cavell Hospital, Peterbrough, UKSearch for more papers by this authorX. Montalban, X. Montalban Hospital Universitari de la Vall d’Hebron, Antigua Escuela de Enfermeria, Barcelona, SpainSearch for more papers by this authorA. Klimek, A. Klimek Klinika Neurologii i Epileptologii z Oddzialem Udarowym, Lodz, PolandSearch for more papers by this authorP. Davies, P. Davies Department of Neurology, Northampton General Hospital, Northampton, UKSearch for more papers by this authorthe Sativex Spasticity Study Group, the Sativex Spasticity Study GroupSearch for more papers by this author A. Novotna, A. Novotna Krajska nemocnice Pardubice, Neurologicke odd, Paradubice, Czech RepublicSearch for more papers by this authorJ. Mares, J. Mares Neurologicka Klinika, Olomouc, Czech RepublicSearch for more papers by this authorS. Ratcliffe, S. Ratcliffe MAC UK Neuroscience Ltd, Manchester, UKSearch for more papers by this authorI. Novakova, I. Novakova MS Centrum, Neurologicka klinika, Prague, Czech RepublicSearch for more papers by this authorM. Vachova, M. Vachova MS centre of Hospital Teplice, Teplice, Czech RepublicSearch for more papers by this authorO. Zapletalova, O. Zapletalova Neurologicka klinika FN Ostrava, Ostrava, Czech RepublicSearch for more papers by this authorC. Gasperini, C. Gasperini Reparto Neurologico LANCISI Day Hospital, Centro Sclerosi Multipla, Rome, ItalySearch for more papers by this authorC. Pozzilli, C. Pozzilli Dipartimento di Scienze Neurologiche, Universita’ degli Studi, Rome, ItalySearch for more papers by this authorL. Cefaro, L. Cefaro Sant’Andrea Multiple Sclerosis Centre, University La Sapienza, Rome, ItalySearch for more papers by this authorG. Comi, G. Comi Centro Sclerosi Multipla Ospedale S. Raffaele, Milan, ItalySearch for more papers by this authorP. Rossi, P. Rossi Centro Sclerosi Multipla Ospedale S. Raffaele, Milan, ItalySearch for more papers by this authorZ. Ambler, Z. Ambler Neurologicka klinika FN Plzen, Plezn, Czech RepublicSearch for more papers by this authorZ. Stelmasiak, Z. Stelmasiak Katedra i Klinika Neurologii Akademii Medycznej, Lublin, PolandSearch for more papers by this authorA. Erdmann, A. Erdmann Pain Clinic F, Edith Cavell Hospital, Peterbrough, UKSearch for more papers by this authorX. Montalban, X. Montalban Hospital Universitari de la Vall d’Hebron, Antigua Escuela de Enfermeria, Barcelona, SpainSearch for more papers by this authorA. Klimek, A. Klimek Klinika Neurologii i Epileptologii z Oddzialem Udarowym, Lodz, PolandSearch for more papers by this authorP. Davies, P. Davies Department of Neurology, Northampton General Hospital, Northampton, UKSearch for more papers by this authorthe Sativex Spasticity Study Group, the Sativex Spasticity Study GroupSearch for more papers by this author First published: 01 March 2011 https://doi.org/10.1111/j.1468-1331.2010.03328.xCitations: 312 MU Dr. A. Novotna, Krajska nemocnice Pardubice, Neurologicke odd., Kyjevska 44, 632 03 Pardubice, Czech Republic (tel.: +420 467 434701; fax: +420 466 014702; e-mail: [email protected]). † See editorial by Claudio Solaro, on page 1113. ‡ Sativex does not yet have an INN, but the product does have a US Adopted Name (USAN): ‘nabiximols’. Therefore, we use ‘nabiximols’ in preference to the full product name throughout the text. § Trial registration: The details of this study were registered on clinicaltrials.gov (Ref. NCT00681538). Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract Background: Spasticity is a disabling complication of multiple sclerosis, affecting many patients with the condition. We report the first Phase 3 placebo-controlled study of an oral antispasticity agent to use an enriched study design. Methods: A 19-week follow-up, multicentre, double-blind, randomized, placebo-controlled, parallel-group study in subjects with multiple sclerosis spasticity not fully relieved with current antispasticity therapy. Subjects were treated with nabiximols, as add-on therapy, in a single-blind manner for 4 weeks, after which those achieving an improvement in spasticity of ≥20% progressed to a 12-week randomized, placebo-controlled phase. Results: Of the 572 subjects enrolled, 272 achieved a ≥20% improvement after 4 weeks of single-blind treatment, and 241 were randomized. The primary end-point was the difference between treatments in the mean spasticity Numeric Rating Scale (NRS) in the randomized, controlled phase of the study. 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