Eye Movement Recording as an Early Differential Diagnostic Tool for

Status Recruiting

Clinical Trial Summary

The global aim of our study is to validate eye movement recording as an early differential diagnostic tool, in order to discriminate as early as possible between neurodegenerative dementias of Alzheimer type and depressive pseudodementias (DPD). The investigators want to put forward idiosyncratic oculomotor characteristics of Alzheimer's disease (AD) and DPD respectively. Eye movements are sensitive markers of neurological diseases and can be used in a variety of clinical neurological syndromes.

This study compares 3 groups of 98 patients: patients suffering of AD and DPD and healthy persons. The patients AD will be recruited in the Memory Centre of Resources and Research of Besançon and patients DPD will be selected in the psychiatric department of the University Hospital of Besançon. The control participants will be recruited from the entourage of researchers and patients. The selection of participants in the 3 different groups is based on clinical examinations in psychiatry and neurology and neuropsychological assessments. After giving informed consent, patients will be evaluated by a psychiatrist and a neuropsychologist. The complete assessment takes 150 minutes.

After having set up patients, eye movements will be recorded using video-oculography techniques. The following tasks are performed: the basic dynamic eye movements (latency, hypometric and hypermetric saccades, reaction time, saccade speed, accuracy, pupil diameter) will be evaluated by the pro-saccade, anti-saccade and predictive saccade tasks. The emotional connotation tasks will be assessed by scan of images pair with emotional connotation and portrait analysis. The assessment takes 30 minutes.

This study will include 3 groups:

- an Alzheimer group;

- a depressed group;

- a control group with healthy persons. The population of this study will be comprised of patients over age 60 with a visual acuity over 9/10, not diagnosed with eye disease and not neuropsychological sequelae that could disrupt the functioning oculomotor.

These people will be recruited on a voluntary basis, after notification and consent in the research center, the Psychiatry Clinical Department of the University Hospital of Besançon. This study was conducted over a period of 36 months.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01434940
Study type	Interventional
Source	Centre Hospitalier Universitaire de Besancon
Contact	Pierre VANDEL, Prof
Phone	+33381218073
Email	pierre.vandel@univ-fcomte.fr
Status	Recruiting
Phase	N/A
Start date	April 2010
Completion date	July 2018

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Eye Movement Recording as an Early Differential Diagnostic Tool for Alzheimer/Depression — MOMAD

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms