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Neurocognitive Changes in Patients With Remitting Relapsing Multiple Sclerosis Treated With Natalizumab

Multiple Sclerosis Clinical Trial

Official title:
Neurocognitive Changes in Patients With Remitting Relapsing Multiple Sclerosis Treated With Natalizumab

Clinical Trial Summary

Cognitive impairment is seen in about half of patients with relapsing remitting MS. Our knowledge about long term development of cognitive performance under natalizumab therapy is limited. We want to demonstrate with this study that patients treated with ntz improve in neurocognitive tests over the long term.

Clinical Trial Description

Impaired cognitive function may represent damage to brain regions that are not involved in physical functions, hence may not be detected during routine neurological assessment. Despite the high prevalence of cognitive impairment in MS, cognitive function is not assessed routinely in clinical practice. The perception that cognitive assessments are costly, time-consuming, complicated, and difficult to administer and interpret has contributed, at least in part, to the failure to incorporate cognitive testing into standard clinical evaluation of patients with MS.

Cognitive impairment may also reduce the ability of patients to comprehend and adhere to treatment concepts (Bobholz 2003). Early detection of cognitive impairment is important to initiate therapeutic intervention, even though the optimal treatment of cognitive decline in MS is at the moment controversial.

Preliminary studies suggest an essential role of disease modifying therapies (DMT) in inhibition of cognitive deterioration in patients with MS (Barak 2002, Flechter 2007). Data about long term cognitive performance of multiple sclerosis patients treated with natalizumab is limited. One study demonstrated in MS patients treated with natalizumab an improvement in SDMT (Symbol Digit Modalities Test) of 16.4% over a period of 2 years (Piehl 2010). SDMT is a screening tool for cognitive impairment in MS patients, mainly measuring working memory and speed processing. As SDMT only covers a part of the neurocognitive impairments seen in MS patients, there is a need for further studies to gain a more complete picture. ;

Study Design

Observational Model: Cohort, Time Perspective: Prospective

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01250678
Study type Observational
Source Cantonal Hospital of St. Gallen
Contact
Status Not yet recruiting
Phase N/A
Start date January 2011
Completion date June 2014
View Details
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