A Randomised Controlled Trial of Neuroprotection With Lamotrigine in Secondary Progressive Multiple Sclerosis
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First Received Date ICMJE | November 22, 2005 | ||||
Last Updated Date | February 5, 2010 | ||||
Start Date ICMJE | November 2005 | ||||
Primary Completion Date | January 2009 (final data collection date for primary outcome measure) | ||||
Current Primary Outcome Measures ICMJE |
Change in central brain volume on MRI using the 'Loseff method' | ||||
Original Primary Outcome Measures ICMJE | Same as current | ||||
Change History | Complete list of historical versions of study NCT00257855 on ClinicalTrials.gov Archive Site | ||||
Current Secondary Outcome Measures ICMJE |
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Original Secondary Outcome Measures ICMJE |
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Current Other Outcome Measures ICMJE | |||||
Original Other Outcome Measures ICMJE | |||||
Descriptive Information | |||||
Brief Title ICMJE | A Randomised Controlled Trial of Neuroprotection With Lamotrigine in Secondary Progressive Multiple Sclerosis | ||||
Official Title ICMJE | A Randomised Controlled Trial of Neuroprotection With Lamotrigine in Secondary Progressive Multiple Sclerosis: Single Centre, Phase 2 Trial | ||||
Brief Summary | A present there is no safe treatment for reducing rate at which disability worsens in people with secondary progressive multiple sclerosis. Recent research has suggested the possibility that drugs that act by blocking the entry of sodium into nerve cells can protect nerve fibres in the brain and spinal cord. In this trial, the investigators will test whether one such drug, called lamotrigine, can prevent damage to nerve fibres and reduce the rate at which MS worsens. The period of treatment in the trial will run for 2 years. |
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Detailed Description | At present, there is no safe, widely applicable treatment that is capable of reducing the rate at which disability advances in secondary progressive multiple sclerosis (SPMS). There is good evidence that the primary cause of disability is axonal degeneration within the CNS, so there is considerable interest in developing treatments which can protect axons from degeneration. Experimental work by members of our group has established that axons may degenerate upon exposure to the inflammatory mediator nitric oxide. The mechanism of the damage implies that protection might be afforded by the novel approach of partially blocking sodium channels, and our group and others have recently demonstrated that drugs including flecainide, phenytoin and lamotrigine can reduce axonal degeneration when optic nerves or spinal roots are exposed to nitric oxide, and in experimental autoimmune encephalomyelitis. Aims: To assess whether the sodium channel blocker lamotrigine has a neuroprotective, disease modifying effect on a) the rate of axonal degeneration and b) the accumulation of disability in patients with SPMS. Methodology: We propose to recruit 120 people with SPMS in whom progression rather than relapse is the major cause of increasing disability into a double blind parallel group controlled trial lasting two years in which random allocation would be made to receive treatment with either lamotrigine or placebo. We anticipate that patient recruitment, follow-up and trial management could be achieved readily across four proposed sites in London. The primary endpoint would be an effect of treatment on cerebral atrophy, which correlates with other MR markers of axonal loss, and which can be measured reliably and sensitively using recently developed MR techniques. The trial is powered to detect a 60% beneficial effect on the rate of development of cerebral atrophy. Secondary endpoints would include effects of treatment on spinal cord atrophy and on clinical measurements of impairment/disability. MR measures of brain volume and cervical spinal cord cross-sectional area and scores of clinical impairment/disability would be determined at entry, and then after 12 and 24 months. Brain volume would be measured additionally at 6 and 18 months. Clinical follow-up would occur every 3 months, and interim analysis is planned at 12 months. Utilization of results: A phase 2 trial of sodium channel blockade in SPMS is timely, given recent advances arising from experimental and imaging work. A successful outcome would enable sufficiently powered phase 3 trials to be implemented, but perhaps more significantly would demonstrate a novel, safe neuroprotective strategy to reduce long-term disability in this disorder. |
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Study Type ICMJE | Interventional | ||||
Study Phase | Phase 2 | ||||
Study Design ICMJE | Allocation: Randomized Endpoint Classification: Efficacy Study Intervention Model: Parallel Assignment Masking: Double-Blind Primary Purpose: Treatment |
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Condition ICMJE | Secondary Progressive Multiple Sclerosis | ||||
Intervention ICMJE | Drug: Lamotrigine | ||||
Study Arm (s) | |||||
Publications * | Kapoor R, Furby J, Hayton T, Smith KJ, Altmann DR, Brenner R, Chataway J, Hughes RA, Miller DH. Lamotrigine for neuroprotection in secondary progressive multiple sclerosis: a randomised, double-blind, placebo-controlled, parallel-group trial. Lancet Neurol. 2010 Jul;9(7):681-8. Epub 2010 Jun 8. | ||||
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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Recruitment Information | |||||
Recruitment Status ICMJE | Completed | ||||
Enrollment ICMJE | 120 | ||||
Completion Date | February 2009 | ||||
Primary Completion Date | January 2009 (final data collection date for primary outcome measure) | ||||
Eligibility Criteria ICMJE | Inclusion Criteria:
Exclusion Criteria:
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Gender | Both | ||||
Ages | 18 Years to 60 Years | ||||
Accepts Healthy Volunteers | No | ||||
Contacts ICMJE | Contact information is only displayed when the study is recruiting subjects | ||||
Location Countries ICMJE | United Kingdom | ||||
Administrative Information | |||||
NCT Number ICMJE | NCT00257855 | ||||
Other Study ID Numbers ICMJE | 2005-001949-42 | ||||
Has Data Monitoring Committee | Yes | ||||
Responsible Party | |||||
Study Sponsor ICMJE | University College London Hospitals | ||||
Collaborators ICMJE | |||||
Investigators ICMJE |
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Information Provided By | University College London Hospitals | ||||
Verification Date | February 2009 | ||||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |