Oculomotor Testing in the Differential Diagnosis of Dementia — OculoMacl  

Alzheimer's Disease Clinical Trial

Official title: Oculomotor Recording in the Contribution to the Early Differential Diagnosis of Dementia With Lewy Bodies and Alzheimer's Disease

Status Completed

Clinical Trial Summary

The aim of this study is to determine whether saccadic eye movement recording may help in the discrimination between Lewy body dementia and Alzheimer disease, in the early stages of the disease.

Study type: Interventional Study design: Intervention Model: Single group assignment Primary purpose: Diagnostic

Clinical Trial Description

Dementia with Lewy bodies (DLB) is the second most common cause of neurodegenerative dementia. In its early stages, the differential diagnosis of DLB and Alzheimer's disease (AD) can be challenging. The differential diagnosis is particularly important given that patients with DLB respond well to cholinesterase inhibitors but show sensitivity to neuroleptic medications which are contraindicated in DLB. DLB tends to progress more quickly than Alzheimer's disease. Diagnostic accuracy may be improved. Oculomotor recording, easy to perform could be helpful in order to identify and reliably assess fluctuating attention performance in DLB patients.

Main objective:

• to improve differential diagnosis between DLB and AD in the early stages of the disease with oculomotor measurements

Secondary objectives:

• to examine the association between the oculomotor records and neuropsychological examination assessing attention abilities and their fluctuations

• to evaluate the benefit of complementary neuropsychological tests in the distinction between DLB and AD cases

• to examine the relationship between hippocampal volume and neuropsychological examination in DLB cases

• to examine the diagnostic performance of MRI (Support Vector Machine) between DLB and AD

• to examine the interest of CSF alpha synuclein concentration to discriminate DLB from AD

• to assess at one year variations in oculomotor test scores and neuropsychological test scores Method and design Longitudinal multicenter study including 100 patients with a DLB or AD diagnosis. Clinical examination at one year. ;

Study Design

Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Diagnostic

Related Conditions & MeSH terms

• Alzheimer Disease
• Alzheimer's Disease
• Lewy Body Disease

• NCT number: NCT01577394
• Study type: Interventional
• Source: Assistance Publique - Hôpitaux de Paris
• Status: Completed
• Phase: Phase 3
• Start date: June 2011
• Completion date: April 2016